1/5 of 400 = 80
400 x 1/5 = 400/5
400/5 = 80
The first part is 1325
10 x 35=350
15 x 65=975
The you add them which equals 1325
Answer:
Step-by-step explanation:
<u>GIVEN:
</u>
To find the missing number in the proportion, you have to isolate it the term of x from one side of the equation.

First, thing you do is switch sides.

Multiply by 21 from both sides.

Solve.
Multiply the numbers from left to right.
Use the order of operations.
PEMDAS stands for:
- Parentheses
- Exponents
- Multiply
- Divide
- Add
- Subtract


- <u>Therefore, the final answer is x=24.</u>
I hope this helps. Let me know if you have any questions.
Answer:
okay im sorry but i can only help with the first page so im going to use the first equation as an example. when it tells you what x equals in this case four you put it in place of the variable and put it all together and see if those two numbers egual the amount given. so here it written out:
x +11=15 x= 4
4+ 11 + 15.
in this case yes the given numbers equal the amount.
really hope this helped you!
Step-by-step explanation: