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Dovator [93]
3 years ago
5

URGENT!!!! Set up proportions for each variable and solve!!! I have a test tomorrow and have no clue how to do proportions!

Mathematics
1 answer:
vlada-n [284]3 years ago
8 0

Answer:

This is how you do proportions (images below). If you need more help just ask.

Step-by-step explanation:

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Peter waters his lawn every 4 days. Amy waters her lawn every 3 days and Mark waters his lawn every 6 days. If they are all wate
ch4aika [34]

Answer:

A) 12th day

Step-by-step explanation:

Firn the lcm of 3, 4 and 6

This is 12

So it is a)12 day

6 0
2 years ago
Read 2 more answers
The diameter of a sphere is measured to be 4.17 in.
gtnhenbr [62]

Step-by-step explanation:

To find the radius of the sphere we must convert the inches to centimeters

Using the conversation

1 inch = 2.54 cm

If 1 inch = 2.54 cm

4.17 inch = 2.54 × 4.17 = 10.59 cm

<h2>a).</h2>

We can find the radius using the formula

radius =  \frac{diameter}{2}

From the question

diameter = 10.59 cm

So we have

radius =  \frac{10.59}{2}

<h3>radius = 5.30 cm</h3>

<h2>b).</h2>

Surface area of a sphere= 4πr²

where

r is the radius

Surface area = 4(5.30)²π

= 112.36π

= 352.989

We have the answer as

<h3>Surface area = 353 cm²</h3>

<h2>c).</h2>

Volume of a sphere is given by

\frac{4}{3} \pi  {r}^{3}

r = 5.30

The volume of the sphere is

\frac{4}{3} ( {5.30})^{3} \pi

= 623.61451

We have the answer as

<h2>Volume = 623.6 cm³</h2>

Hope this helps you

3 0
4 years ago
Tom's mark of a maths test was 68.This was 20% worse than his mark in English.what was Tom's English mark ?
Shkiper50 [21]
98 would be his english mark
5 0
3 years ago
What is the absolute value of |1-|
stich3 [128]

Answer:

1

Step-by-step explanation:

absolute values are always positive, so the absolute value of -1 is 1

always going to be positive

3 0
2 years ago
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erica [24]

Answer:

QRS equals to 91

Step-by-step explanation:

50 + 41 = 91

8 0
3 years ago
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