MATHEMATICS MIDDLE SCHOOL

4w+15= -13

-12=n/2-6

Answers

Answer 1

Answer:

Answer:

For the one including 4w the answer is - 7

The one with n/2 is - 12

Step-by-step explanation:

4w=-13-15

4w=-28

w=-7

Multiply by 2 on both sides

-24=n-12

-24+12=n

Always write it in the variables perspective.

n=-12

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Round 939,515 to the nearest ten

Whats more 5 miles or 26,300 yards

Answers

26300 is more because 5 miles is almost the same but I had searched up and it said 5 miles is less

26,300 yards is longer because 26,300 yard is equal to 14.94 miles ( 14 or 15 miles)

What is the lowest prime number 1,2,3,4

Answers

Hey there, well we know a prime number must have exactly two factors, which is 1 and its self. 2 is the lowest prime number because because the common divisors for 2 is 1 and 2. Therefore, 2 is the lowest prime number.

Additive primes

Primes such that the sum of digits is a prime.

2, 3, 5, 7, 11, 23, 29, 41, 43, 47, 61, 67, 83, 89, 101, 113, 131

4.79+ what=37 100-what=52.7

Answers

4.79 + x = 37
-4.79 -4.79 4.79 + 32.21=37
x=32.21

100 - x =52.7
-100 -100 100- 47.3=52.7
-x= -47.3
-x -x
x= 47.3

Question 1)

solve your equation step-by-step.

4.79+x=37100

Simplify both sides of the equation.

x+4.79=37100

Subtract 4.79 from both sides.

x+4.79−4.79=37100−4.79

x=37095.21

Question 2)

solve your equation step-by-step.

100−x=52.7

Simplify both sides of the equation

100−x=52.7

100+−x=52.7

−x+100=52.7

Subtract 100 from both sides.

−x+100−100=52.7−100

−x=−47.3

Divide both sides by -1.

−x−1=−47.3−1

x=47.3

Anne is taping 7 boxes for storage. She uses feet of tape to close each box. How much tape will Anne need to tape the boxes?
Express your answer in simplest form.

A.
7 1/2 feet

B.
10 1/2 feet

C.
11 feet

D.
12 feet

Answers

B is the answer to the question
multiply the number of boxes times the amount used for each box

33 POINTS POSSIBLE PLEASEEEE HELP b) How many moles of Na2O are required to produce 1.60 x 1024 molecules of NaOH?

Given the following equation: 8 Fe + S8 → 8 FeS
a) What mass of iron is needed to react with 16.0 moles of sulfur?

Answers

Answer:

7148.16 grams of iron

Step-by-step explanation:

If you have 16 moles of S8, you have 16*8 moles of iron at 55.845 g/mol Iron. 16*8mol*55.845 g/mol leads moles to cancel and leaves you at 7148.16 grams of iron

How is the process of finding equivalent ratios like the process of finding equivalent fractions