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3 years ago

8/9=?/18 find another name for the given number, but with the denominator indicated. Use multiplication by 1.

Mathematics

2 answers:

mezya [45]3 years ago

8 0

Answer:

n=16

Step-by-step explanation:

Let's solve your equation step-by-step.

Step 1: Cross-multiply.

(8)*(18)=n*(9)

144=9n

Step 2: Flip the equation.

9n=144

Step 3: Divide both sides by 9.

144

n=16

Yuri [45]3 years ago

4 0

Answer: 16

Step-by-step explanation:

8/9 = ?/18

Let the missing value be c

8/9 = c/18

Cross multiply

9c = 18 x 8

9c = 144

Divide both sides by 9

c = 144/9

c = 16.

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$\large{\underline{\underline{\pmb{\sf {\color {blue}{Solution:}}}}}}$

Given,

Area = 225 yd²

Base = 30 yd

Height = [To be calculated]

To find:

The height of the given triangle.

We know that, area of a triangle is:

$\frac{1}{2} \times (b \times h) \\ \\ \leadsto \frac{1}{2} \times (30 \times h) \\ \\ \leadsto \frac{1}{2} \times 30h \\ \\ \leadsto \frac{1}{ \cancel{2}} \times \cancel{30}h \\ \\ \leadsto1 \times 15h \\ \\ \leadsto \: h = 15 \: yd$

Therefore, the require height is 15 yd.

$\green\star$ Proof:

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