1 year ago

Which expression is equivalent to 20 + 8y − 9y − 21

Mathematics

1 answer:

Sindrei [870]1 year ago

4 0

Answer:

-y-1

Step-by-step explanation:

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The sum of two numbers is 20, and the difference is 40

Feliz [49]

$x+y=20\\\underline{x-y=40}\\2x=60\\x=30\\\\30+y=20\\y=-10$

-10 and 30

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3 years ago

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Taylor wants to install new carpet in her living room. The room length is 15 ft and the width is 15 ft. If the cost of the carpe

irga5000 [103]

Answer:

$1,800.

Step-by-step explanation:

15 x 15 = 225

225 x 8 = 1800

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3 years ago

A sedan will drive ten miles north, 15 miles east, 13 miles south, 15 miles west, and 22 miles

pishuonlain [190]

The total distance is 75 miles

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2 years ago

BRAINLIESTT ASAP! PLEASE HELP ME :) thanks!

AVprozaik [17]

ΔACD and ΔASR are the same so we can write a ratio:

x/4 = 10/5

x/4 = 2

x/4 * 4 = 2 * 4

x = 8

Since AS is equal to x, they are both the same.

Therefore, the answer is [ x = 8, AS = 8 ]

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2 years ago

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find the area of a parallelogram if a base and corresponding altitude have the indicated lengths base 1 1/2 feet , altitude 6 in

Ostrovityanka [42]

The area of parallelogram is 108 square inches

Solution:

The formula for area of parallelogram is:

$Area = base \times height$

From given,

$Base = 1\frac{1}{2}\ feet = \frac{2 \times 1 + 1}{2} = \frac{3}{2}\ feet$

$Height = 6\ inches$

Convert feet to inches

1 feet = 12 inches

$\frac{3}{2}\ feet = \frac{3}{2} \times 12\ inches = 18\ inches$

Therefore, area of parallelogram is:

$Area = 18 \times 6\\\\Area = 108$

Thus area of parallelogram is 108 square inches

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2 years ago