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Savatey [412]
3 years ago
14

If x varies directly as y, find x when y = 8. x = -4 when y = 10 X =

Mathematics
1 answer:
timurjin [86]3 years ago
6 0

Answer:

9.6

Step-by-step explanation:

I think!

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Joel biked 9 miles east and then 12 miles north. If he
Anastasy [175]

Answer:

36 miles

Step-by-step explanation:

His entire journey, represented with a diagram, is in the shape of a right angle triangle.

We need to first find the hypotenuse of the triangle, then, add all the sides together:

hyp² = opp² + adj²

hyp² = 9² + 12²

hyp² = 81 + 144 = 225

Find the square root of both sides:

hyp = 15 miles

Therefore, adding the three sides together:

Total distance traveled = 9 + 12 + 15

Total distance traveled = 36 miles

He would ride 36 miles altogether.

5 0
3 years ago
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There are a total of 63 bikes, if ratio of blue bikes to Black is 4 to 5 how many bikes are blue
Alexus [3.1K]

Answer:

28 bikes are blue

Step-by-step explanation:

Set up the ratio:

Blue : Black

4 : 5

Find the total # of bikes in the ratio:

4 + 5 = 9

Find the relationship between 63 and 9:

63/9 = 7

Multiply both sides of the ratio by 7:

4(7) = 28

5(7) = 35

28 : 35

Therefore, the number of blue bikes is 28.

5 0
3 years ago
Solve the following:
nikklg [1K]

Answer:

3x(10x10x10): 3x(1000): 3000-7000: -4000. (8x(-5)): -40. (4x4) +(2x2): (16 +4): 20

7 0
2 years ago
What is the greatest common factor between 24 & 28
Elis [28]
24:
1 and 24
6 and 4
2 and 3 2 and 2

So 24 = 1 X 2^3 X 3


28:
1 and 28
7 and 4
2 and 2

So 28 = 1 X 2^2 X 7

Therefore the greatest common factor of 24 and 28 is 2.

7 0
3 years ago
A school survey says that 75% or 294 of the 8th graders have cell phones how many 8th graders are there?
mezya [45]

Answer:

75

____ x 294 = 220.5 around 221 students.

100

The keyword of means multiplication.

Consider a percent out of 100.

A way to remember is that: "cent" means 100.

3 0
3 years ago
Read 2 more answers
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