this is so confusing to me

Answer:

He bought 26 stamps

Step-by-step explanation:

13.66=.39x+4.30

9.36=.39x

26=x

Answer:

24 stamps

Step-by-step explanation:

13.66 - 4.3 = 0.39s

9.36 = 0.39s

Divide both sides by 0.39

24 = s

Or turn it:

s = 24

Answer:

I believe he answered 18 questions correctly.

The number of years value isn't given, we could use an hypothetical value, which can be substituted for the correct number of years given in your exercise in other to find the exact answer.

Using a t value of 10 years

Answer:

651558

Step-by-step explanation:

Given that:

Initial population, P0= 400,000

Growth rate, r = 5%

Using the relation :

P(t) = P0 * (1 + r)^t

t = number of years = 10

P(10) = 400000 * (1 + 0.05)^10

P(10) = 400000 * (1.05)^10

P(10) = 400000 * 1.628894626777

P(10) = 651557.8507

= 651558 nearest whole number.

Recall that, the t value used is hypothetical and should be replaces with te exact value given in your question.

Answer:

1 is b

2 is c

3 is b

Step-by-step explanation:

Initial co-ordinate of p = ( 2, -2)

Rule for rotation 180° about the origin

(x,y) ----> ( -x , -y )

Meaning of the rule: To find the coordinates of a point that was rotated 180° about the origin all we have to do is add negative signs in front of the x and y values of the coordinates. THE NUMBER STAYS THE SAME. THE ONLY THING THAT CHANGES IS THE SIGN

* add - to the coordinates *

- ( 2 , -2 )

-1 * 2 = -2

-1 * -2 = 2

we end up with ( -2, 2 )

Hence the answer is B

For this one a rectangle was dilated and we have to find the scale factor and the new width.

We are given the pre image width (3) and length (4) and the new image length (12)

We can find the scale factor by dividing the new image length by the pre image length ( Note that you have to use corresponding sides. Like pre image height over new image height or pre image length over new image length. etc. )

So scale factor = 12 / 4  or 3

Now to find the new image width

We can do this by multiplying the pre image width (3) by the scale factor (3)

So new image width = 3 * 3

3 * 3 = 9

Hence the width of the enlarged  print is C 9 inches

For this one we need to find x using angle rules

The angles shown are supplementary angles meaning that the sum of the two angles is 180

That being said we can create an equation to solve for x

180 = 64 + 4x + 16

Now we just solve using basic algebra

step 1 combine like terms

64 + 16 = 80

now we have 180 = 4x + 80

step 2 subtract 80 from each side

80 - 80 cancels out

180 - 80 = 100

now we have 100 = 4x

step 3 divide each side by 4

100/4 = 25

4x/4=x

we're left with x = 25

Answer:

5/72

Step-by-step explanation:

dividing is equivalent to multiplying by the reciprocal

5/8×1/9

multiply the fraction

8×9=72

5×1=5

Answer: 5/72

Answer:

5/8 / 9 = 5/72

Step-by-step explanation:

5/8 / 9 = 5/72

Anytime you divide with a fraction remember this:

Same, change, flip:

You keep the first fraction, which is 5/8, the same.

Then you change the division sign to a multiplication sign.

After that, you flip the 9/1 (which is the same thing as 9) to 1/9.

So it would be 5/8 x 1/9.

If you multiply that, you can 5/72.

Therefore, 5/72 is your answer.

I hope this helped.

Answer:

(-14,-20)

Step-by-step explanation:

hope it helps!

Answer:

x=-14, y=-20

Step-by-step explanation:

Answer:

Step-by-step explanation:

The Pythagorean theorem is that (for right triangles)

a^2+b^2=c

Meaning c is the side opposite the right angle

Hope this helps!

Answer:

Answer is

(100*-m)+(45*n)

Step-by-step explanation: because stock  decreases per sock so you're going to multiply 100 times -m because it is decreasing so it will be negative

Then it will be 45*n because it increases per number of stocks so you multiply 45 which is the number of stocks times n

Step-by-step explanation:

Answer:

its kinda blurry

Step-by-step explanation:

Answer:

would not be able to use 3 1/2 ft

Step-by-step explanation:

8.5 + 4.5 > 3rd side   ∴ 3rd side must be less than 13 feet

4.5 + 3rd side > 8.5   ∴ 3rd side must be greater than 4 feet

Answer:

y = 2x - 1

Step-by-step explanation:

4x - 2y = 2

So I'm assuming that your goal is to solve for the value of y in terms of x

First: the whole equation can be divided by 2

2x - y = 1

Second: subtract 2x from both sides

-y = -2x + 1

Third: divide each side by -1

y = 2x - 1

Done! I would appreciate Brainliest but no worries.

Answer:

12 bracelets

Step-by-step explanation:

Answer:

thanks you too for having us

Answer:

7

Step-by-step explanation:

so simple like that you gona divide it

Answer:

$80 interest will be owed for 4 months

Step-by-step explanation:

P is the principal amount, $4000.00.

r is the interest rate, 8% per year, or in decimal form, 8/100=0.08.

t is the time involved, 3....month(s) time periods.

Since your interest rate is "per year" and you gave your time interval in "month(s)" we need to convert your time interval into "year" as well.

Do this by dividing your time, 3- month(s), by 12, since there's 12 months in 1 year.

So, t is 0.25....year time periods.

To find the simple interest, we multiply 4000 × 0.08 × 0.25 to get that

Answer:

x = 36 degrees

y = 48 degrees

Step-by-step explanation:

The two given triangles are congruent

Hence, we can say that the interior angles are equal

We shall use the angle markings on each of the triangles

Using the markings, we can see that y is 48 degrees

Now, let us find the last angle measure of the first triangle

Mathematically, the sum of angles in a triangle is 180

Thus;

108 + 48 + A = 180

A = 180 - 48 - 108

A = 180 - 156 = 24

Now, the measure 2x-y is equal to this;

Hence;

2x -y = 24

2x = 24 + y

we have that y = 48

2x = 24 + 48

2x = 72

x = 72/2

x = 36 degrees

Answer:

27.7 days

Step-by-step explanation:

volume of a cylinder = nr^2h

n = 22/7

r = radius

the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.

A radius is half of the diameter

radius = 8/2

(22/7) x (4^2) x 11 == 553.14 in^3

if it rains 20 cm^3 per day, the can would fill in : volume of can / amount of rain = 553.14/20 = 27.7 days

Answer:

I think the answer is D

Step-by-step explanation:

Answer:

The answer should be 37

Step-by-step explanation:

Answer:

D. 15%

Step-by-step explanation:

Find the percent increase by dividing the difference in prices by the original price

27/180

= 0.15

So, the percent increase was 15%

The correct answer is D. 15%

Answer:

You don't like them

Step-by-step explanation:

definition: contemptuously  

ADVERB

contemptuously (adverb)

in a scornful way that shows disdain.

"he contemptuously dismisses his son's work"

Answer:

-1

Step-by-step explanation:

Answer:D

Step-by-step explanation:

Convert 100 yards to feet, which becomes 300 feet.

6 inches into feet, 0.5 feet.

18 feet times 300 feet times 0.5 feet is 2700 cubic feet.

Divide 2700 by 250 and you get 10.8. Meaning, you need 11 trucks since there is a remaining 0.8.

The minimum number of truckloads required to completely cover the section of road to a depth of 6 inches should be 11.

Since

The section is 100 yards long and 18 feet wide. The company's truck can haul 250 cubic feet of gravel per load.

So here first we have to convert 100 yards to feet so it should be 300 feet.

Now 6 inches into feet should be 0.5 feet

Now the total be like

= [tex]18 \times 300 \times 0.5[/tex]

= 2700

Now the minimum number should be

= [tex]2700 / 250[/tex]

= 10.8

= 11

Learn more about number here: https://brainly.com/question/24585170

Answer:

18500

Step-by-step explanation:

Well first we turn 500% into a decimal by dividing by 100

500/100 = 5

Now 5*3700=18500

Answer:

t=36

Step-by-step explanation:

54-18 = 36

Answer:

t + 18 = 54

Step-by-step explanation:

t + 18 = 54

subtract 18 from both sides

t = 36

The temperature during the night was 36 degrees

Hope that helps

Answer:

175.929

Step-by-step explanation:

7pi = area of half of pizza

21.99x8 = calories in half of pizza

Answer: 570.70 ft

Step-by-step explanation:

The perimeter is the distance around the entire parking lot.

The measurement of 150.23 ft by 135.12 ft is half of the distance of the lot because it represents just two sides yet there are 4 sides.

The other two sides have the same measurement as this is a rectangle.

The perimeter of the parking lot is:

= (150.23 * 2) + (135.12 * 2)

= 570.70 ft

Answer:

You could buy 4 avacodos with how much money you have :)

You can buy 4 avocados