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natali 33 [55]
2 years ago
9

Please help theres two questions (-2x+8y-11)+(-3y-y+5)

Mathematics
1 answer:
SpyIntel [72]2 years ago
7 0

Answer:

a)  "Like terms" are terms whose variables (and their exponents such as the 2 in x²) are the same

8y, -3y and y are all likes terms because the variables are all y

b)

(-2x+8y-11)+(-3y-y+5)\\\\=-2x+8y-11-3y-y+5\\\\=-2x+(8y-3y-y)+(5-11)\\\\=-2x+4y-6\\\\=2(-x+2y-3)\\\\=-2(x-2y+3)

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Whats the sum of 8/10 + 17/+100=
yaroslaw [1]
97/100 is the answer.
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3 years ago
Kyle's fencing team is selling calendars to raise money. They earn $0.40 On each calendar they sell. Their goal is to earn more
neonofarm [45]

Answer:

818

Step-by-step explanation:

Amount earned per calendar = $0.40

Target amount = > $327

Least number of calendars they can sell ;

(Number of calendars * amount earned per calendar) > 327

Let number of calendars = x

0.40x > 327

x > 327/0.40

x > 817.5

Least Number of calendars they can sell is 818

7 0
3 years ago
What is a31 of the arithmetic sequence for which a5=3.2 and a9=12.0?
miv72 [106K]

The arithmetic sequence formula:

a_n=a_1+(n-1)d

We have:

a_5=3.2,\ a_9=12.0

Calculate d (common difference)

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Calculate 31th term:

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7 0
3 years ago
Caroline, Colin & Sarah share some money.
aev [14]

Answer:

Colin gets  \frac{2}{3}

Step-by-step explanation:

One part is excluded in the problem. That part is:

"Caroline gets \frac{1}{9} of the money."

<u>Solution:</u>

If Caroline gets 1/9th, then remaining is:

1-\frac{1}{9}=\frac{8}{9}

Colin and Sarah share in ratio 3 is to 1, that means 3 + 1 = 4 parts...

8/9th in 4 parts means, each part is:

\frac{\frac{8}{9}}{4}=\frac{2}{9}

We know Colin gets "3" parts of the total, each part is (2/9)th, so 3 parts would be:

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Colin gets  \frac{2}{3}

7 0
3 years ago
Find a formula for the described function.
mote1985 [20]

Answer:

The area of the rectangle is A=5L-L^2.

Step-by-step explanation:

The perimeter of a rectangle is

P=2(L+W)

where, L is length and W is width.

It is given that perimeter of a rectangle is 10m.

10=2(L+W)

Divide both sides by 2.

5=L+W

Subtract L from both sides.

5-L=W

Area of a rectangle is

A=L\times W

Substitute W=(5-L) in the above formula.

A=L\times (5-L)

A=5L-L^2

Therefore, the area of the rectangle is A=5L-L^2.

7 0
3 years ago
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