MATHEMATICS MIDDLE SCHOOL

HELP PLS ASAPKira solved the equation in the following way.
7/2 − 2x = 11/2
7/2 − 7/2 − 2x = 11/2 − 7/2
−2x ÷ −2 = 4/2 ÷ − 2
x = −1
Describe the properties of equality that Kira used.

The first step is to use the _______ property of equality to combine the constant terms.
1.addition
2.subtraction
3.multiplication
4.division
The second step is to use the _______ property of equality to isolate the variable.
1.addition
2.subtraction
3.multiplication
4.division

Answers

Answer 1
Answer:

Answer:

1subtraction 2division

Answer 2
Answer:

Answer:

1 subtraction 2 division

Step-by-step explanation:

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Chantelle takes out a loan of $3,500 with an APR of 4.25%. She will repay the loan in monthly payments for 6 months. To find the total amount of interest she will pay, Chantelle uses an online calculator. What are the correct numbers she should enter?

Answers

Answer:

Chantelle will pay $73 of interest for a loan of $3,500 with an APR of 4.25%.

Step-by-step explanation:

Since APR is  defined as the anual percentage rate, the amount of interest that Chantelle will pay  can be expressed as:

I=L*(1+APR/100%)^n-L

Where L is the amount of money borrewed  and n the numbers of years. As Chantelle repay the loan in less than a year n is less than 1:

n = 6 months / 12 months = 0.5

Then replacing the calculated value of n, the ARP and the the borrowed money:

I=$3,500*(1+4.25%/100%)^0.5-$3,500

I=$3,500*(1+0.0425)^0.5-$3,500

I=$3,500*1.021-$3,500

I=$3,573-$3,500

I=$73

APR = Annual Percentage Rate

[(3500x0.0425)+3500]/2

The numerator is divided by 2 because 6 months is half of a year. 

What's 7 divided by 9-6+ you don't need a reason and take your time if it helps

Answers

7/9 -6+8
= 7/9 -54/9+ 72/9
= 25/9
= 2 7/9

The final answer is 2 7/9~

What is the value of a in the equation 5 a minus 10 b equals 45, when b equals 3?3
15
21
39

Answers

Answer:

15

Step-by-step explanation:

Given:

  • 5a - 10b = 45
  • b = 3,

Finding the value of a, solving the equation, considering the value of b=3:

  • 5a - 10*3 = 45
  • 5a = 45+30
  • 5a= 75
  • a= 75/5
  • a= 15

Correct choice is15

Answer:

B. 15

Step-by-step explanation:

WHAT IS A FIGURE THAT HAS ON ENDPOINT AND GOES ON FOREVER IN THE OTHER DIRECTION?

Answers

A figure with one endpoint and goes on in one directions is called a ray

Beau has 3 orange picks for every 2 green. If there are 25 picks in all, how many picks are orange?

Answers

the answer is: 15 orange picks

25/2+3=5
5*3=15

Whats is 0.000000698 in scientific notation

Answers

0,000000698 = 6,98 * 10^(-7)
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