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gayaneshka [121]
3 years ago
8

First ral correct answer gets brainliest What expression is equivalent to (-18) - 64n?

Mathematics
1 answer:
mestny [16]3 years ago
7 0

Answer:-2(9+32n)

Step-by-step explanation:

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Whats the error?Jonah says a common denominator for 3/4 and 2/5 is 9.What is Jonahs error?
sammy [17]
In order to get the common denominator when adding fractions or subtracting fractions, you have to make sure  that the denominator of the two items are divisible by each other. In this case, 9 is not divisible by any of the given denominators which is 4 and 5. So in this case, the common denominator will have to be 20. 5 x 4 will equal to 20 and you will also multiply 3 x 5 to get the new numerator. After that, you will multiply 2 x 4 to get the new numerator of the other fraction. The new fractions will be 15/20 and 8/20. From there, you can add or subtract
6 0
3 years ago
How does the order of operations relate to solving multi-step equations? Use examples of solving an equation, and then evaluatin
givi [52]
The order of operations helps keep answers for multi-step equations similar. If the proper order of operations are not followed, then answers may vary. To show an example:

4 / 2 - 1

The proper order of operations would be:

Divide first, before subtracting
4 / 2 - 1
2 - 1
1

But if subtracting was done before dividing:

4 / 2 - 1
4 / 1
4

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6 0
3 years ago
Factorize a⁴-6a²-7-8x-x²​
ANEK [815]
Answer:a⁴-7-x²-6a²-8x
4 0
2 years ago
For a school picnic, leslie ordered a box of fresh-baked gingerbread cookies and sugar cookies. She got 60 cookies in all. 15 of
OlgaM077 [116]

Answer:

Pretty sure 25%.

Step-by-step explanation:

First, you would need to see how many times 60 goes into 100, because a percent is ALWAYS over 100. You should get an answer of 1.66666667. Then you if you multiply it to one of the numbers then you have to do it to the other number. So, you would do 15 times 1.66666667. You would get 25. So, that would be 25 over 100 or 25/100. And 25 over 100 is 25%.

I hope I helped! :) Sorry if it's wrong :(

5 0
3 years ago
A. Find 18% more than 200<br> B. Find 18% less than 200
stellarik [79]

Answer:

A. 236

B. 164

Step-by-step explanation:

18% of 200= 36

200+36=236

200-36=164

6 0
3 years ago
Read 2 more answers
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