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bezimeni [28]
3 years ago
14

Sorry about the quality of the picture but

Mathematics
1 answer:
slega [8]3 years ago
4 0

Answer:

52.5 km

Step-by-step explanation:

1cm: 2100000cm

2.5cm: x cm

you get 52.5 km

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About 150,000 people live in a circular region with a population density of about
morpeh [17]

Area of a circle = pi x r^2

Area of circle = 150,000/ 1578 = 95.06 square miles

95.06 = 3.14 x r ^2

Divide both sides by 3.14

R^2 = 30.27

Find the square root:

R = sqrt(30.27)

R = 5.5

The radius is c) 5.5 miles

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3 years ago
If a 40-foot tree casts a 16-foot shadow, find the length of the shadow cast by a 24-foot tree
Mrrafil [7]

40/16 = 24/x

16*24 = 384

x = 384 / 40

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8 0
3 years ago
Which model represents 0.30 + 0.03? <br> A)a <br> B)b <br> C)c <br> D)d
Masteriza [31]
The model that represents 0.30+0.03 is A.
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3 years ago
4y-7x=16 solve for y
kompoz [17]
I think the answer would be  x= 4/7 y = +-16/7
4 0
3 years ago
Read 2 more answers
Kenzie finds purple, blue, and silver space rocks while exploring, 2/3 of the rocks are purple and 3/4 of the remainder are blue
Nadya [2.5K]

Answer:

There were 36 space rocks in total.

Step-by-step explanation:

First, you need to find what fraction of the original rocks are silver.

If 2/3 are purple, then 1/3 of them are not.

If 3/4 of the remaining 1/3 are blue, then 3/4 x 1/3 = 3/12 rocks are blue.

2/3 of the rock are purple, 3/12 of them are blue, and the remaining is silver.

So, you need to do 2/3 - 3/12, then find common denominators so, 8/12 - 3/12 which = 1/12.

This means 1/12 of the rocks are silver. If there are silver rocks, you need to find a suitable equation that needs to be solved.

So:

1/12r = 3

r = 36 silver rocks

There were 36 space rocks in total.

hope this helps :)

3 0
3 years ago
Read 2 more answers
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