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2 years ago

12

Fatima is saving up to buy a $300 bike. She saves $25 each week from her babysitting money. Which linear equation represents the

amount Fatima still has to save after x weeks?

1 answer:

anzhelika [568]2 years ago

7 0

300%25x because 25 per each job which is xxx and 300 is how much she needs so total amount divided by amount needed

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the diameter of a football is five times the diameter of a cricket ball ratio of surface area of football and cricket ball is

LenKa [72]

Answer:

25 : 1

Step-by-step explanation:

The diameter of the football is 5 times the diameter of the cricket ball. This means that the radius of the football is also 5 times the radius of the cricket ball.

Let the radius of the football be R.

Let the radius of the cricket ball be r.

This implies that:

R = 5r

Both balls are spherical.

The surface area of the cricket ball is given as:

$a = 4\pi r^2$

The surface area of the football is given as:

$A = 4\pi R^2$

$=>A = 4\pi (5r)^2\\\\A = 100\pi r^2$

Therefore, the ratio of their surface areas is:

A : a

$100\pi r^2 : 4\pi r^2$

= 100 : 4

25 : 1

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French Co. marks up its goods 45% on cost. What is French's equivalent markup on selling price? Round to the nearest hundredth p

Fiesta28 [93]

<span>Let
CP ------> cost price
SP ------> Selling price

we know that
SP= CP + 0.45CP
Mark up = 0.45CP
Ratio of Mark up to Selling price-------> 0.45CP/(CP + 0.45CP)
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</span>
the answer is
31.03%

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