On enlarging the rectangle, the proportion or ratio of Length to Height will stay the same.

The ratio of original length to height is 13 : 6
The ratio in enlarged rectangle will stay the same. Let the height of enlarged rectangle is y cm. So we can write:

$13:6=19.5:x \\ \\ 
 \frac{13}{6} = \frac{19.5}{x} \\ \\ 
x=19.5* \frac{6}{13}=9$

Therefore, the height in enlarged rectangle will be 9 cm

5 0

3 years ago

Need help asap please!!

Lana71 [14]

Answer:

$\displaystyle 23$

Step-by-step explanation:

$\displaystyle 4p = p + 69 → -69 = -3p; 23 = p$

I am joyous to assist you at any time.

6 0

3 years ago

Solve the following word problem using any method. Show your work.

VLD [36.1K]

Let's set up two equations:
x+y=20 We know she brought total of 20, some of each so x=small y=big
20x+ 30y=450

x+y= 20
-y -y
------------
x= 20 -y

substitute into the other equation:
20 (20-y) + 30y = 450
400 - 20y + 30y = 450
400+ 10 y = 450
10 y = 50
y= 5

So she brought 5 big cases. Then substitute the value of y into one of the equations.

5+ x = 20
x= 15

So we bought 15 small cases and 5 big cases.

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5 0

3 years ago

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