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3 years ago

14

2 1/4 = 1 2/7÷x what is x?

1 answer:

Roman55 [17]3 years ago

8 0

Answer:

x=4/7

Step-by-step explanation:

Change mixed fractions to improper fractions

2 1/4 = 9/4

1 2/7 =9/7

Therefore, we have

9/4=9/7÷x

9/7÷x is 9/7×1/x=9/7x

Then, we have

9/4=9/7x

Cross multipy

9×7x=9×4

63x=36

Make x the subject of the formula, we have

x=36/63

x=4/7

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ahrayia [7]

Answer:

129.3 feets

Step-by-step explanation:

Using the solution diagram attached below :

The difference in height of the two buildings :

Building B - Building A = (654 - 480) = 174 feets

Using trigonometry :

Cosθ = opposite / Adjacent

Cos 42 = d / 174

d = 174 * Cos 42

d = 129.307

d = 129.3 feets

8 0

3 years ago

What is the exact solution to this system of equasions?<br> y=-1x+6<br> y=2/3+-3

ss7ja [257]

The second one is Y=-2.33
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4 years ago

Maksim231197 [3]

Answer:

10

Step-by-step explanation:

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3 years ago

The volume of a cone is 50 pi cubic feet. Its height is 6 feet. In feet, what is the radius of the cone? Round the answer to the

prohojiy [21]

Answer:

The radius of the cone is $5\ ft$

Step-by-step explanation:

we know that

The volume of a cone is equal to

$V=\frac{1}{3}\pi r^{2}h$

In this problem we have

$V=50\pi\ ft^{3}$

$h=6\ ft$

substitute in the formula and solve for r

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6 0

3 years ago

Read 2 more answers

I need help please?!!!

Tanzania [10]

Please see attachment

7 0

3 years ago