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Iteru [2.4K]
2 years ago
9

HELP PLS!

Mathematics
2 answers:
Phantasy [73]2 years ago
7 0

Answer:

390 pennies that susan is holding

asambeis [7]2 years ago
7 0

Answer:

3/4x-280=x/2

-3/4x-280=x/2 find the common factor for 3/4x-280/1 which is 4 3/4x-280/1 3xby

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Can anyone help with this ??
ANEK [815]
Oof why do you think of the most important things to do in the future and the other is a great way to get the best out of the way and I have to say that I am not a fan of 45372
4 0
3 years ago
Solve: -7(3+6x)=9(-5x+7)
Ivan

Answer:

x=28

Step-by-step explanation:

-7(3+6x)=9(-5x+7)

-21-42x=-45x+63

-21-42x-(-45x)=63

-21-42x+45x=63

-21+3x=63

3x=63-(-21)

3x=63+21

3x=84

x=84/3

x=28

7 0
3 years ago
Read 2 more answers
Hannah has another candle that is 14 cm tall. How fast must it burn in order to also be 6 cm tall after 4 hours? Explain your th
RideAnS [48]

Answer:

The candle must burn at 2cm per hour in order to be 6cm tall after 4 hours. I know this because the candle has to burn 8cm in 4 hours and that amounts to 2cm per hour.

Step-by-step explanation:

Lets solve!

We have to find out how much of the candle needs to be burned!

14cm - 6cm = 8cm

The candle must burn 8cm in 4 hours!

Lets find out how much the candle burns in 1 hour.

\frac{8cm}{4hours}= 2cm per hour

The candle must burn at 2cm per hour in order to be 6cm tall after 4 hours. I know this because the candle has to burn 8cm in 4 hours and that amounts to 2cm per hour.

Woohoo, We did it! <u>Would you like to mark my answer as brainliest?</u> I would love that!

6 0
3 years ago
Am I right or wrong?? ​
Slav-nsk [51]

Answer:

i think thats correct

Step-by-step explanation:

8 0
3 years ago
Simplify the expression.<br> (4a- 80 - 4a2) + (7a3 - 7 - 6a)
allsm [11]

Answer:

the answer should be 7a^3-4a^2-2a-87

3 0
3 years ago
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