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charle [14.2K]
2 years ago
15

Simplify the expression by using the distributive property and combining like terms

Mathematics
1 answer:
IrinaK [193]2 years ago
4 0

Answer:

54y+78

Step-by-step explanation:

6*3y+ 18y

6*7=42

4*9=36

4*9y=36y

18y+36y+42+36= 54y+78

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Please answer this, FAST!! please!!!
rjkz [21]

Answer:$15.40

Step-by-step explanation:

6 0
2 years ago
What is 3x +99 2(8*3)= 135<br> what is x equal to?
Ivenika [448]

Answer: -4

Step-by-step explanation: I am guessing you meant ...99  + 2(8*3)...

3x + 99 + 2(8 x 3) = 135

3x + 99 + 2(24) = 135

3x + 99 +48 = 135

3x + 147 = 135

(3x + 147) - 147 = (135) - 147

3x = -12

(3x) ÷ 3 = (-12) ÷ 3

x = -4

3 0
3 years ago
On a Timeline a milestone 11 years in the future will be the ___ of a milestone 20 years in the future and to the ___ of a miles
Katen [24]

Answer:

On a Timeline a milestone 11 years in the future will be the 11/20 of a milestone 20 years in the future and to the 11/25 of a milestone 25 years in the future.

Step-by-step explanation:

Milestone - 20 years in the future.

x = \frac{11\,yr}{20\,yr}

Milestone - 25 years in the future.

y = \frac{11\,yr}{25\,yr}

5 0
3 years ago
A polynomial divided by a polynomial is a polynomial. always, sometimes, or never true?
Artemon [7]
I think it is always true. I am not sure but I hope I'm right
3 0
3 years ago
Your sister is getting married this summer and she has asked you to help her select a D.J.
ioda
So Dave charges 150 at first and then 10.50 per each hour, so if your sister has the party going for say "h" hours, then his total charges will then be 150 + 10.5h.

now, Marvin's Mobile Music charges 135 at first, but then is more expensive per hour is 15 bucks per each hour, so if she has a party for "h" hours, then his total charges are 135 + 15h.

now, let's check when they're both equal, at how many hours will they cost your sister the same amount.

\bf 150+10.50h=135+15h\implies 150-135=15h-10.5h&#10;\\\\\\&#10;15=4.5h\implies 15=4\frac{1}{2}h\implies 15=\cfrac{9}{2}h\implies \cfrac{15}{\frac{9}{2}}=h\implies \cfrac{\frac{15}{1}}{\frac{9}{2}}=h&#10;\\\\\\&#10;\cfrac{15}{1}\cdot \cfrac{2}{9}=h\implies \cfrac{30}{9}=h\implies \cfrac{10}{3}=h\implies 3\frac{1}{3}=h

so, 3 and a third of a hour, or 3 hours and 20 minutes, they both will cost your sister the same amount, so it wouldn't matter who's hired if the party is only 3 hours and 20 minutes long.

however, after that, the one with higher hourly rate, Marvin's, gets more expensive, and she's better off hiring the one with cheaper hourly rate.

now, you can just get some mp3s and some loud speakers and nevermind the  DJs and you do it, or she can do it, I have the macarena song if you need that one.
3 0
3 years ago
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