Mathematics High School

Can anyone explain how to do multiplicative inverse? im in 8th grade btw... please give an example and explain. I will mark you the brainliest pleaseee

Answers

Answer 1

Answer:

i dont get it

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

Multiplicative inverse is the reciprocal of a number.

Example:

15 x ? =1

The reciprocal of 15 is 1/15 therefore,

15 x 1/15 =1

You would cross cancel the 15 integers. Leaving 1 on bothsidea

Related Questions

Rosie works as a riveter and earns $20.50 per hour for a base 40-hour week. If she works overtime, she earns time-and-a-half, that is, 1.5 times her base rate of pay up to 10 more hours of overtime, and then double-time, that is, twice her base rate beyond that. One particularly busy season, Rosie worked 53 hours per week for 10 weeks. What did Rosie earn that season? (Do NOT include punctuation in your answer.)

Answers

Answer:

1111235.252

Step-by-step explanation:

During an investigation on speed, a ball rolls down a ramp a distance of 8 m in a time of 2 seconds. What is the average speed of the ball in m/s?

Answers

Answer:

4 m/s

Step-by-step explanation:

To find the average speed of the ball, divide the number of meters by the number of seconds:

8/2

= 4

So, the average speed of the ball is 4 m/s

EASY 10 POINTS QUESTION 7 PLEASEEEEEEE

Answers

Answer:

x=9

Step-by-step explanation:

-2x+9=-4x+27

first you want to get the -4x on the other side of the equal sign you do that by -4- -4 which will cancel them out and you do -2 - -4 = 2x

now you have 2x+9=27 now you do 9-9 which will cancel them out and you do 27 - 9 = 18

Now you have 2x=18 then you want to divide 2 by 2x which will cancel out the 2 and you want to divide 2 by 18 which equals 9 so you answer is x=9

hope this helps

[tex]74 \times 54 + 7 \div 20[/tex]
slove this?

Answers

I think it’s 3,996.35 if you use PEMDAS and you multiply 74 by 54 to get 3,996 then you divide 7 over 20 to get .35 and you then add them together to get 3996.35

74 x 54 = 3,996

7\ 20 = 0.35

3,996 + 0.35 = 3,996.35

The value in dollars, f(x), of a certain car after x years is represented by the equation f(x) = 25,000(0.86)^x. To the nearest dollar, how much more is the car worth after 2 years than after 3 years?
a. $18,490
b. $34, 391.40
c. $15,901.40
d. $2,588.60

Answers

Answer:

588.6

Step-by-step explanation:

Multiply

0.86

(

)

(

)

490

391.4

901.4

588.6

I do not know which formula to use

Carla bought a dress at a sale for 20% off the original price. The sale price of the dress was $68.90. Find the original price of the drees, in dollars.

Step by step explanation please.

Answers

Answer:

I think it's the second formula.

Step-by-step explanation:

Let x be the original price.

The discount rate is 20%

Sale Price is $68.90

Discount = 20% of x = 0.2x

Using the formula, Sale Price = Original Price - Discount,

Original Price - Discount is x-0.2x = 0.8x

$68.90 = 0.8x

From here on, just do the equation :) Hope this helps!

Use the 3rd one because it has fewer steps and will give you the answer

Andrew Needs 995 tickets to get the prize he wants At the arcade. He Already has 319 tickets and can earn 4w tickets each time he plays an game. How many games will he have to play in order to have enough tickets to win the prize he wants.

Answers

650 tickets
To win the e prize

what is the answer to graphing this equation y= -4x

Answers

Answer:

x=0

Step-by-step explanation:

If 3 + w=b, which expression is equivalent to w?

Answers

Answer:

W= B-3 or 3=B-W

Step-by-step explanation:

just add or subtract either

Answer:

w = b - 3

Step-by-step explanation:

3 + w = b

-3 -3

w = b - 3

Hope this helps!

Convert 7.2 ⋅ 10−3 to standard form. (3 points)

need help ASAP

Answers

Answer:

7.2x10^-3--->.0072

Step-by-step explanation:

Which of the following is equivalent to 5x-6y=20?

A y=5/6x
B y=5/6x-10/3
C y=6/5x+4
D y=-5/6x

Answers

Answer:

y = [tex]\frac{5}{6}[/tex]x - [tex]\frac{10}{3}[/tex]

Step-by-step explanation:

Given expression:

5x - 6y = 20

To solve this problem, we make y the subject of the expression:

Solution

5x - 6y = 20

Add -5x to both sides of the expression;

-5x + 5x - 6y = 20 + (-5x)

-6y = 20 - 5x

Now, multiply both sides by [tex]-\frac{1}{6}[/tex] ;

[tex]-\frac{1}{6}[/tex] x (-6y) = [tex]-\frac{1}{6}[/tex] (20 - 5x )

y = [tex]-\frac{20}{6}[/tex] + [tex]\frac{5}{6}[/tex]x

y = [tex]\frac{5}{6}[/tex]x - [tex]\frac{10}{3}[/tex]

(Will mark brainliest if you’re right)
How are linear inequalities used for financial analyst? Written in a Paragraph

Answers

Answer:

It allows you to find the slope of the gross income that you are earning. Linear inequalities show how much money you earn from the maximum to the potential minimum. Linear lines are straight so they show the average or the best fit of your financial status.

Step-by-step explanation:

Hope this helps!

How many solutions does the following equation have? 3(y + 9) = 12y+ 13

Answers

Answer:

asddsdaddd

Step-by-step explanation:

Solve forx: (x – 3)/ 3 =4

Answers

Answer:

x = 15

Step-by-step explanation:

=> x - 3 = 12

=> x = 15

Answer:

your answer is 9/4 check google

Step-by-step explanation:

A jetliner uses 3,600 gallons of fuel per hour while it is cruising, and there are 15,000 gallons of fuel in the jetliner's fuel tank when it begins to cruise. If y represents the amount of fuel, in thousands of gallons, remaining in the fuel tank after the jetliner cruises for x hours, determine the graph of the solution set for this situation and the equation modeled by the graph.

Answers

Answer:

y = 15 - 3.6x.

Step-by-step explanation:

The initial amount of fuel before cruising begins = 15,000 gallons.

The equation is y = 15 - 3.6x where y is in thousands of gallons and x = number of hours.

Which Expression has a value of 2/3

Answers

Answer:

(8 + 24) ÷ (12 x 4)

Step-by-step explanation:

determining y intercept and zeroes. PLEASE HELP!!! with either one is okay !!! thank you!

Answers

for the first one:
B. y-intercept is 16, zeros are 2 and -2

the answer to this question is b.

Question 5 please. I need help with thus.

Answers

Answer:

TU = 63.84 in

Step-by-step explanation:

Since T lies on RU, then

RT + TU = RU, substitute values

9x - 2.64 + 11x - 4.36 = 117, that is

20x - 7 = 117 ( add 7 to both sides )

20x = 124 ( divide both sides by 20 )

x = 6.2

Thus

TU = 11x - 4.36 = 11(6.2) - 4.36 = 68.2 - 4.36 = 63.84 in

The length of TU is 63.84

Find the missing numbers:
x2 – 9x + 20 = (x – ?)(x – ?)

Answers

Answer:

bloop

Step-by-step explanation:14 and 30

X2 -4x-5x+20
X(x-4)-5(x-4)
(X-4)(x-5)

please help! giving brainliest to the person who’s correct :)

Answers

She counted the squares instead of using the scale.

The scale, the numbers on the x amd y axis dont fo by ones, they go by sixes

Answer: the secound one

Step-by-step explanation:

-3a + b when a
=
-4 and b = 9.

Answers

Answer:

12+9=21

Step-by-step explanation:

The same as the other answer lol

What value of x makes the equation true?
1/4x+5=1/5x+16

Answers

Answer:

220

Step-by-step explanation:

1/4x-1/5x=16-5

1/20x=11

X=11×20

=220

You have a sandbox that can only fit no more than 30 cubic feet of sand. At the store, each bag only contains 2.5 cubic feet of sand.

Write and solve an inequality that represents the number of bags b you need to buy.

Answers

Answer:

2.56≥30

b≥12

Step-by-step explanation:

-2 (x + 1/4) + 1 = 5 solve for x

Answers

Answer:

-9 would be your answer

I need help solving all the questions.
1. Rakesha claims that the equation f(n) 5 5n 2 7 is the function notation for the sequence that is
represented by the explicit formula an 5 22 1 5(n 2 1). James doesn’t understand how this can be
the case.
a. Help James by listing the steps to write the explicit formula of the given sequence in function
notation. Provide a rationale for each step.
b. Graph the function. Label the fi rst 5 values of the sequence on the graph.
2. Determine whether each table of values represents a linear function. For those that represent
linear functions, write the function. For those that do not, explain why not.

Answers

easy it’s 6.57 glad to help u

if y= -4 when x=2, find y when x=-6.

Answers

Answer:

y=12

Step-by-step explanation:

2*-2=-4

-6*-2=12

y=12

Answer: erbgv

Step-by-step explanation:

Solve the equation 4^2x = 9

Answers

Answer:

x=9/16

Step-by-step explanation:

Divide each term by 4 ^2 and simplify.

Answer:

x = 9/16

Step-by-step explanation:

line I is the perpendicular bisector of MN. find m

Answers

Answer:

m = 68

Step-by-step explanation:

MN bisects it or splits it in half so we know N = M, which we could also write as 8x-12 = 5x+18 because they give us those equations

once you have 8x-12 = 5x+18 you can subtract 5x from both sides, so you will get 3x-12 = 18, then you can add 12 to both sides and you will get 3x = 30. Once you have narrowed down to this you can divide three by both sides making x = 10

Now that we know x =10 we can insert it into the equation

5(10) + 18 = m

50 + 18 = m

m = 68

find the value of x if n(x)=-6x+10 when n(x)=58

Answers

Answer:8

Step-by-step explanation:

6x+10=58

6x=48

X=8

What is the slope of the line that contains these points?
Pls help

Answers

Answer:

-1

Step-by-step explanation:

m=y2-y1/x2-x1

-6-(-5)=(-1)

6-5=1

-1/1=(-1)

hope this helps :3

if it did pls mark brainliest

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