In one problem, he gave her a store receipt that listed 72 identical items, each the

same price, for a total cost of

$ * 67.9*

Bryn's Grandpa covered the first and last digits of the total price on the receipt

with stars.

Determine the values of the digits that Bryn's Grandpa covered.

Answers

Answer 1

Answer:

The first covered digit = x = 3

The last covered digit = y = 2

The total price on the receipt = $367.92

Step-by-step explanation:

Given data:

total cost = $ * 67.9*

First we check for the multiples of 72

9 × 8 = 72

Let

the first covered digit be denoted by x

the last covered digit be denoted by y

Solution

First we find the last covered digit

If a number should be divisible by 8,

It must be a multiple of 8

From the given price:

The last 3 digits = 79*

number in multiples of 8

7.9* = 7.20 + 0.64+ 0.08

7.9* = 7.92

Therefore, the last two digit is 2.

Next We find the first covered digit.

If a number is divisible by 9, it is a multiple of 9

The first digit = x  would be determined as:

= x + 6 + 7 + 9 + 2

= x + 24

= x + 24

multiple of 9 nearer to 24 = 27

27 = x + 24

x = 27 - 24

x = 3.


Related Questions

Please help me ASAP!!

Answers

Answer:

bottom right

Step-by-step explanation:

Answer:

(2067+49) x 21

Step-by-step explanation:

Explain how the graph of f(x) is obtained

Answers

Answer:

there is no picture

Step-by-step explanation:

sorry without a picture i cant :(

Solve for x,

40x-5 = 115​

Answers

Answer:

x=3

Step-by-step explanation:

1. Add 5 to both sides --> 40x=120

2. Divide 40 from both sides

3. x=3

How do you turn a interval into an inequality?

Answers

Answer : Interval to Inequality

(a, +∞) x > a "greater than a"

[a, +∞) x ≥ a "greater than or equal to a"

(-∞, a) x < a "less than a"

(-∞, a] x ≤ a "less than or equal to a"

I hope you find this helpful

Find the value of x.

(A) 16 (B) 41 (C) 5 (D) 25 (E) 66

Answers

Answer:

D. 25

Step-by-step explanation:

D. 25 is the correct answer....Hopes it helps you....Hopes to get BRAINLIEST.. .

Thank you ☺️☺️☺️

In my opinion answer is 25 or D

HELPPPP PLS ASAPPPPP EASY

Answers

Answer:

on what

Step-by-step explanation:

??????

Answer:

What do you need help with?

Step-by-step explanation:

Upload a picture

math more math and more math i mark as brainly​

Answers

Answer:

It's the first one

Its A

PLEASE MARK ME AS THE BRAINLIEST!!!!!!!!!!!!!!!!!!!!

The value of the expression 7*3 to the second power +(12-8)/ 2*4 is

Answers

Answer: 40

Step-by-step explanation:

PEMDAS

7 + 3 squared + (12-8) divided by 2 x 4

7 +9 +4 divided by 2 x 4

20/2 = 10 x 4 = 40

If you subtract 12 from my number and multiply the difference by - 5, the result is -90." What is Sara's number?​

Answers

Answer:

30

Step-by-step explanation:

Do the steps in reverse

-90 divided by -5 = 18

18 + 12 = 30

Your answer is 30

Hope I helped :)

Please consider Brainliest :)

The length of a rectangle is 4 feet less than twice its width, while the perimeter is 15.

Answers

Answer:

width: 3.83

length: 3.66

Step-by-step explanation:

The perimeter of a triangle is calculating by adding all the sides together (length + length + width + width). Since we are given the formula for the length we can simply substitute that formula and solve for the width which would be the only variable in the equation.

length + length + width + width = 15

(2w-4) + (2w-4) + w + w = 15  ... combine like terms

6w - 8 = 15  ... add 8 on both sides

6w = 15 ... divide both sides by 6

w = 3.83

Now that we know the value for the width we can plug it into the formula for the length to find its value

l = 2w - 4

l = 7.66 - 4

l = 3.66

Finally, we can see that the rectangle has a width of 3.83 and a length of 3.66

6 - 8x = 6x - 9x + 11

Answers

6-8x=-3x+11

-8x+3x=11-6

-5x=5

x=-1

The first step is to isolate the variable, then you solve. Hope this helps, brainliest if you can.

Answer:

hi

Step-by-step explanation:

hi i am a gamergirl add me in fortnite xxgamergilxx93_qt

hello I need help on it ​

Answers

42145357556574455247788555

If a fuel efficient car can go 210 miles
on 4 gallons of fuel, how far can it go
on 12 gallons?

Answers

Answer:

The distance covered by the car in 12 gallons of fuel is 630 miles.

Step-by-step explanation:

Distance covered by car in 4 gallons of fuel = 210 miles.

Let us use unitary method to find distance covered by car in 1 gallon of fuel.

Distance covered by car in 1 gallon of fuel = 210/4 miles.

Let us use unitary method to find distance covered by car in 12 gallon of fuel.

Distance covered by car in 12 gallons of fuel = (210/4)*12 = 630 miles.

Perfect Purple Water The recipe for Perfect Purple Water says, "Mix 8 ml of blue water with 3 ml of red water." lada mixes 24 ml of blue water with 9 ml of red water. Andre mixes 16 ml of blue water with 9 ml of red water. . Which person will get a color mixture that is the same shade as Perfect Purple Water? Explain or show your reasoning.​

Answers

Analysing the question:

We are given that the ratio between the blue and red color is 8 : 3

as long as the volumes of the colours added simplify to 8 : 3 , the color will be Perfect Purple

Lada's Solution:

Lada mixed 24 mL of blue water with 9 mL of red water

we will try to simplify this ratio:

24:9 = 24 / 9

8 / 3

8 : 3

Hence, the ratio of the colours in Lada's mixture is correct. So, Lada will get perfect purple water

Andre's Solution:

Andre mixed 16mL of Blue water with 9 mL of red water

we will try to simplify this ratio:

16 : 9 = 16 / 9

THIS RATIO CANNOT BE SIMPLIFIED

Hence, the ratio of blue and red color in Andre's mixture is 16 : 9

but the ratio for a perfect purple color is 8 : 3

Since the ratio in Andre's mixture is incorrect, she will NOT get the perfect purple colour

Answer:

Lada will get a color mixture that is the same shade as Perfect Purple Water.

Step-by-step explanation:

Proportions

The mix for Perfect Purple Water contains 8 ml of blue water with 3 ml of red water.

The exact proportion of both ingredients is, blue to red:

[tex]\displaystyle \frac{8}{3}[/tex]

Lada mixes 24 ml of blue water with 9 ml of red water. The proportion is:

[tex]\displaystyle \frac{24}{9}[/tex]

Simplifying by 3:

[tex]\displaystyle \frac{8}{3}[/tex]

The proportion obtained by Lada is the same shade as Perfect Purple Water.

Andre mixes 16 ml of blue water with 9 ml of red water, his proportion is:

[tex]\displaystyle \frac{16}{9}[/tex]

This fraction cannot be reduced and its result is not exactly the same as the perfect required proportion.

Thus, Lada will get a color mixture that is the same shade as Perfect Purple Water.

the first 5 multiples of 18 after 0 are?​

Answers

Answer:

18,36,54,72,90 are first five multiples of 18

Step-by-step explanation:

Answer:

18,36,54,72,90

Step-by-step explanation:

(25 points) A car rental company's standard charge includes an initial fee plus an additional fee for each mile driven. The standard charge S (in dollars) is given by the function S = 0.40M + 15.75, where M is the number of miles driven.

The company also offers an option to insure the car against damage. The insurance charge I (in dollars) is given by the function I = 0.25M + 3.90.

Let C be the total charge (in dollars) for a rental that includes insurance. Write an equation relating C to M. Simplify your answer as much as possible.

C =

Answers

Answer:

C = 0.65M+19.65

Step-by-step explanation:

Given the the standard charge S (in dollars) given by the function

S = 0.40M + 15.75, where M is the number of miles driven.

Also the insurance charge I (in dollars) is given by the function

I = 0.25M + 3.90

If C is the total charge (in dollars) for a rental that includes insurance, then:

C = S + I

Substitute the given function into the expression:

C = 0.40M + 15.75 + 0.25M + 3.90

Collect like terms

C = 0.40M+0.25M+15.75+3.90

C = 0.65M+19.65

Hence an equation relating C to M is expressed as C = 0.65M+19.65

Find the unknown angle measures.

Answers

Answer:

x = 9°

y = 119°

Step-by-step explanation:

Given,

y° = 61°+58° { the exterior angle formed by producing the side of triangle is equal to two non-adjacent angle}

or, y° = 119°

therefore, y° = 119°

Now,

52°+y°+x° = 180°{the sum of angle if triangle is 180°}

or, 52°+119°+x°= 180°

or, 171°+x° = 180°

or, x° = 180°-171°

or, x° = 9°

therefore, x° = 9°

Heeeeellllllllppppp lol

Answers

Answer: C

Step-by-step explanation: The sign wouldnt be greater than or equal to because he wants to spend less than 250.

Answer:

250

Step-by-step explanation:

A line which has an undefined slope is _____.



A. zero
B. horizontal
C. vertical
D. undefined

Answers

Answer:

c, vertical

Step-by-step explanation:

blablablablablanlabla

please help with one and two i have no clue and i’m really stressed, i’ll mark highest :(

Answers

Answer:

          From Post Office to Store is 7.8 miles           Henry would walk 2.2 h

Step-by-step explanation:

From Post Office (P) to Library (L) is 6 miles, from Store (S) to Library (L) is 5 miles. And angle SLP is right angle (m∠SLP=90°).

So, from Pythagorean theorem:

[tex]SL^2+PL^2=SP^2\\\\5^2+6^2=SP^2\\\\SP^2=25+36=61\\\\SP=\sqrt{61}=7.810 249...\approx7.8[/tex]

If Henry walks 3.6 mph then:

[tex]3.5\qquad-\quad\quad1\,h \\7.8\qquad-\qquad x\\\\ x=\dfrac{7.8\cdot1\,h}{3.5}=\dfrac{78\,h}{35}=2,22857...\, h\approx2.2\,h[/tex]

The sum of three times a number and seven is 22

Answers

Answer:

3x+7=22

Step-by-step explanation:

three times a number is

[tex]3\times x=3x[/tex]

so the sum of 3x and 7 is 22

[tex]3x+7=22\\\\3x=15\\\\x=5[/tex]

you can leave it here

[tex]3x+7=22[/tex]

if you need the value of x

then

[tex]x=5[/tex]

convert 2 3/7 to an improper fraction​

Answers

Answer:The mixed number 2 3/7 can be converted to the improper fraction 17/7. The easiest way to do this is to multiply the denominator of the fraction (7 in...

Step-by-step explanation:

The residents of a certain dormitory have collected the following data: People who live in the dorm can be classified as either involved in a relationship or uninvolved. Among involved people, 5 percent experience a breakup of their relationship every month. Among uninvolved people, 10 percent enter into a relationship every month. What is the steady-state percentage of residents who are uninvolved

Answers

Answer:

The steady-state percentage of residents who are uninvolved = 0.33%

Step-by-step explanation:

This is an example of the natural rate of unemployment given the steady-state percentage of residents who are uninvolved in the question. From the question, the break-up rate represents the rate of job separation in the natural rate of unemployment, while the rate that enters into a relationship represents the rate of job finding in the natural rate of unemployment.

The formula for the natural rate of unemployment = U/L = s / (s + f)

So, the steady-state percentage of residents who are uninvolved = U/L = s / (s + f)

Where U/L = natural rate of unemployment

               s = rate of job separations

             f = rate of job finding

s = 5 percent

f = 10 percent

The steady-state percentage of residents who are uninvolved

=  5% / (5% + 10%)

= 0.33%

12.1.33 Question Help Suppose that 62​% of families living in a certain country own an HDTV and 16​% own a computer. The Addition Rule might​ suggest, then, that 78​% of families own either an HDTV or a computer. ​What's wrong with that​ reasoning?

Answers

Answer:

Step-by-step explanation:

Suppose :

62% own an HDTV

16% own a computer

Using the addition rule : suggests that (62% + 16%) = 78% either own an HDTV or a computer.

The reasoning is wrong because ; since it is possible to own both an HDTV and also own a computer at the same time, the outcome of the addition rule is wrong as both events are independent. If both event cannot occur at the same time (mutually exclusive event) , then, the addition rule may be applied,. But since both can occur independently and each family can own an HDTV while also owning a computer, then the addition rule is wrong for the scenario described.

12. According to a survey conducted by the American Pet Products Association, 68% of U.S. households own a pet. According to the Energy Information Administration, 31% of all U.S. households have trouble paying their energy bills. Suppose 17% of all U.S. households own a pet and have trouble paying their energy bills. If a U.S. household is randomly sampled, a. What is the probability that the household owns a pet or is having trouble paying energy bills

Answers

Answer:

0.82

Step-by-step explanation:

We are given;

P(households own a pet) = 68% = 0.68

P(have trouble paying their energy bills) = 31% = 0.31

P(households own a pet & have trouble paying energy bills) = 17% = 0.17

Now, to find the probability that a household either owns a pet or having trouble paying energy bills is gotten by the relationship;

P(households own a pet or have trouble paying energy bills) = P(households own a pet) + P(have trouble paying their energy bills) - P(households own a pet & have trouble paying energy bills)

This gives;

P(households own a pet or have trouble paying energy bills) = 0.68 + 0.31 - 0.17 = 0.82

What is 0.66666667 as a fraction

Answers

Answer:

2/3

Step-by-step explanation:

Answer:

[tex]\frac{2}{3}[/tex]  

I hope this helps!

Isabel is mailing back packages.each small package cost her $3.30 to send each large package cost her $4.10. How much will it cost her to send 7 small packages and 1 large package??l

Answers

Answer:

$27.20 is the answer. just multiply and then add

Answer:

It will cost her $23.1 to send the little packages and, $4.10 to send one big package.

Step-by-step explanation:

Its very easy multiply the cost which is $3.30 times the amount which is 7 and that your answer $23.1. Than do the same for the big package multiple $4.10 times 1 and you get $4.10.

Find the remainder when
f(x) = 8x^3 + 4x^2 – 13x + 3

is divided by 2x + 5.

A. 1241/125

B. -129/2

C. 69/125

D. 183

Answers

Dividing f(x) by 2x + 5 leaves the same remainder as division by x + 5/2. By the remainder theorem, it is equal to f (-5/2), so the remainder here is

f (-5/2) = 8 (-5/2)³ + 4 (-5/2)² - 13 (-5/2) + 3 = -129/2

Ordenar de menor a mayor los siguientes números 55 gramos, 0.005 kilogramos, 15 gramos

Answers

Answer:

Hola, convertimos todo a una misma unidad, ya sea todo a Kg o todo a g. vamos a pasarlo todo a gramos

3 kg = 3000 g

2,9 Kg = 2900 Gramos

De menor a mayor quedaria

2,9 kg 2950 gr 3 kg 3500 g

Espero haberte podido ayudar

Each side of a square is (7 + 3x) units. Witch is the perimeter of the square?

Answers

Perimeter formula: Side × 4

Side is 7 + 3x

So, P = 4(7+3x) = 28 + 12x

Answer: 28 + 12x

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