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3 years ago

You have $7.45. You buy 8 items that cost $0.83 each. How much money do you have left

Mathematics

1 answer:

Agata [3.3K]3 years ago

6 0

Answer:

$0.81

Step-by-step explanation:

left

$7.45-8(0.83)=7.45-6.64=0.81$

I hope I have helped you

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3 years ago

When people say 8:15 times 195 equals 15x, what does 15x mean or stand for

wel

It means that 15 times another number equals to your equation.

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3 years ago

-(12+8)? Also |16-11| need help

hram777 [196]

-(12+8)=-(20)=-20

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8 0

3 years ago

Complete the table by converting each decimal to a fraction. Show your work. Repeating decimals. 0.2, 0.5, 0.7

Helga [31]

Answers

Part 1 = 2/9

Part 2 =5/9

Part 3 =7/9

Explanation

To convert the a repeating decimals this are the steps;

Part 1

Let x = 0.222222... (i)

10x = 2.222222... (ii)

Subtract equation (i) from equation(ii)

10x = 2.222222....

-x = 0.222222....

9x = 2.00000..

∴ 9x = 2

Divide by 9 both sides;

x = 2/9

Part 2

Let x = 0.5555...

10x = 5.5555...

subtract equation (i) from equation (ii).

10x = 5.5555..

- x = 0.5555..

9x = 5.0000..

∴ 9x = 5

x = 5/9

Part 3

Let x = 0.7777....

10x = 7.7777...

Subtracting equation (i) from equation (ii)

10x = 7.7777...

-x = 0.7777...

9x = 7.000..

∴ 9x = 7

x = 7/9

Pattern noted

When converting the repeating decimals to fraction only one number was repeating. This made the three decimals have the same fraction.

5 0

3 years ago

choose the point-slope form of the equation below that represents the line that passes through the points (−3, 2) and (2, 1). y

fiasKO [112]

we know that

the point-slope form of the equation of the line is equal to

$y-y1=m(x-x1)$

Step $1$

Find the slope m

the slope is equal to

$m=\frac{(y2-y1)}{(x2-x1)}$

Let

$A(-3,2)\\ B(2,1)$

$m=\frac{(1-2)}{(2+3)}$

$m=-\frac{1}{5}$

Step $2$

with m and point A find the equation of the line

$y-2=-\frac{1}{5}(x+3)$

therefore

the answer is

the point-slope form of the equation is equal to

$y-2=-\frac{1}{5}(x+3)$

8 0

3 years ago

Read 2 more answers