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2 years ago

13

The room is 8 feet wide and 20 feet long. There is a green carpet in the room that is 1 foot away from each of the long walls. H

ow many square feet of the carpet is in the room?

1 answer:

lbvjy [14]2 years ago

4 0

Subtract 1 from 20 because the carpet is 1 foot away from each long side then multiply 19 x 8=152

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Which expressions are equivalent to -90 – 60w?

Feliz [49]

Answer:

-30 (2w + 3) is the only one I can figure out.

I hope this helped tho!! :]

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2 years ago

Write the frost ten terms of a sequence whose first term is -10 and whose common difference is -2

Temka [501]

Answer:

$-10,-12,-14,-16,-18,-20,-22,-24,-26,-28,...$

Step-by-step explanation:

we know that

In an <u><em>Arithmetic Sequence</em></u> the difference between one term and the next is a constant, called the common difference

The formula for an Arithmetic Sequence is equal to

$a_n=a_1+(n-1)d$

where

d is the common difference

n is the number of terms

a_1 is the first term of the sequence

In this problem we have

$a_1=-10\\d=-2$

substitute

$a_n=-10+(n-1)(-2)$

$a_n=-10-2n+2$

$a_n=-2n-8$

so

<u><em>Find the first ten terms</em></u>

$a_1=-10$

For n=2 ----> $a_2=-2(2)-8=-12$

For n=3 ----> $a_3=-2(3)-8=-14$

For n=4 ----> $a_4=-2(4)-8=-16$

For n=5 ----> $a_5=-2(5)-8=-18$

For n=6 ----> $a_6=-2(6)-8=-20$

For n=7 ----> $a_7=-2(7)-8=-22$

For n=8 ----> $a_8=-2(8)-8=-24$

For n=9 ----> $a_9=-2(9)-8=-26$

For n=10 ----> $a_1_0=-2(10)-8=-28$

The sequence is

$-10,-12,-14,-16,-18,-20,-22,-24,-26,-28,...$

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3 years ago

Question 1: Describe how you would use the distributive property to simplify (39 x 5). Question 2: Your best friend tells you th

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39 x 5 = (30 x 5) + (9 x 5) = 150 + 45 = 195

He did not change the sign of operation when 28 crossed the equals sign.

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3 years ago

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132LB

...............

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The results of a survey indicate 70% of seventh-graders watch at least one movie during the weekend. Based on this survey of a g

marusya05 [52]

Answer:

35 students

Step-by-step explanation:

70% of 50 = 0.7×50 = 35

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3 years ago