All categories

2 years ago

After spending 30% of her salary Sara was able to deposit $120 in the bank. What is her salary?

Mathematics

1 answer:

Katena32 [7]2 years ago

3 0

Answer: $400

Step-by-step explanation:

So first you set it up in a equation. You put the amount she put in the bank over x (the x represents her full salary) which equals the percent she already spent over her full salary. That would be 120/x=30/100 you would then cross-multiply to get 12,000 = 30x. you then divide 30 from both sides to get x =400.

You might be interested in

Suppose sarah is trying to design a metal box (a rectangular prism), which will hold 450 cubic centimeters of liquid. the length

schepotkina [342]

<span>So, the volume of a container can also be thought of as the amount of liquid that the container is capable of holding. It follows that 450=(length)(width)(height). The constraints of the problem say that the length of the box must be twice as large as the width, so it follows that j(height)=(2w)(w)(height)-450. This then implies that j(height)=(2w^2)(height)-450. In simpler terms, the height is defined as 450/(2w^2), or j(w)=450/(2w^2).</span>

5 0

2 years ago

Need help with homework, I'm having a hard time understanding what to do.

maks197457 [2]

Answer:

i know what you can do

go to jupiter to get more stupider

Step-by-step explanation: #6 yr old burns

#ameture hour

8 0

2 years ago

Look at this graph:

vladimir2022 [97]

Answer:

Step-by-step explanation:

slope=rise/run=20/10=2/1=2.

6 0

2 years ago

Which expression is equivalent to √2/ 3√2 ?

NikAS [45]

You can factor out the square root of two from the num and denom of this fraction leaving you with 1/3 or 1.33

3 0

2 years ago

Read 2 more answers

If a cone with a diameter of 10 m has a surface area of 190.6m2, find its slant height. Round to the nearest tenth.

alukav5142 [94]

Answer: The slant height of the cone is 65.6 m

Step-by-step explanation:

Given: The diameter of a cone = 10 m

Surface area of cone = 190.6 m²

To find: Slant height

Diameter of cone = 10 m

Therefore Radius of cone = $\dfrac{\text {Diameter }}{2} = \dfrac{10}{2} =5m$

As we know that surface area of a cone is given by

$S.A. = \pi r(l+r)$

Where S.A. is surface area , r is the radius of cone and l is the slant height of the cone.

Let Slant height = l

So we have

$190.6 = \dfrac{22}{7} \times 5 ( 5+l)\\\\\Rightarrow 5+l= \dfrac{190.6 \times 7}{22}\\\\\Rightarrow l= \dfrac{1334.2}{22}+5\approx 60.64+5 = 65.64\approx65.6$

Hence the slant height of the cone is 65.6 m

5 0

3 years ago