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2 years ago

What does it mean if I say addition and multiplication are associative

1 answer:

4 0

Meaning you don't have to solve the equation in a certain order just left to right in order to find the answer unlike division and subtraction

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Emma's final grade in her math class is the average (mean) of her 5 chapter tests she took throughout the year. If she received

NikAS [45]

Answer:

Step-by-step explanation:

The mean (or average) of a set of numbers can be found with the following formula:

$Mean = \frac{A_{1} + A_{2} + ... + A_{N}}{N}$

For this problem, we have five numbers, so we add them together and divide by 5:

$Mean = \frac{92 + 85 + 78 + 97 + 88}{5}$

$Mean = \frac{440}{5}$

$Mean = 88$

8 0

2 years ago

Read 2 more answers

5/8y-12= -7<br> im stuck 9th grade math

Galina-37 [17]

Answer:

Step-by-step explanation:

$\frac{5}{8}y-12=-7 \\ \\ \frac{5}{8}y=5 \\ \\ y=8$

3 0

7 months ago

17, 24, 31, 38, ... common diffrence Arithmetic Sequences

irinina [24]

Ans: 10+7n

Step-by-step explanation: there you go

8 0

2 years ago

Read 2 more answers

HELP ASAP! Right/Best Answer gets Brainliest!

Liono4ka [1.6K]

X= 14 + 9y over 2
y= -x - 7 over 6

4 0

2 years ago

What solution is this w = 10

alina1380 [7]

Answer:

w = 10

Step-by-step explanation:

9(w - 9) -2 = -7 + 7(w -8)

Expand:

9w - 81 - 2 = -7 + 7w - 56

Rearrange:

9w - 7w = -7 - 56 + 81 + 2

2w = 20

w = 10

3 0

2 years ago