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Sauron [17]
2 years ago
14

When calculating interest, you need to____. A- change the percentage to a decimal then multiply the decimal against the amount B

- just multiply the percentage against the amount without changing it C- add the percentage to the amount. D- subtract the percentage from the amount
Mathematics
1 answer:
Crank2 years ago
3 0

Answer:

(A) Change the percentage to a decimal then multiply the decimal against the amount

Step-by-step explanation:

When calculating the interest, you need to change the percentage to a decimal by simply dividing it by 100, or simply move the decimal two places to the left, and then multiply the decimal against the amount. with this, it is possible to calculate the interest.

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If a rate is $56 per 7 hours is reduced to a unit rate, results is . do not include units in your answer
DiKsa [7]
You'd probably need to divide 56 by 7 which gives you 8
6 0
3 years ago
Ricardo lost 6 golf balls while playing yesterday he bought a box of twelve golf balls and lost 4 on the course today he now has
umka2103 [35]
16 balls. 

Let's call x the total number of golf balls that Ricardo had before he lost the first 6 balls. (x - 6).
Then he bought 12 more and lost 4 so basically 12 - 4 = 8
Add that to the equation: (x-6) + 8
And now that he has 18 golf balls at end of the second day the total must add to 18.

Full equation: (x-6) + 8 = 18

(x-6) + 8 = 18
(x-6) = 18 - 8 <-- Transpose
(x-6) = 10
16 - 6 = 10 <-- What would x have to be inoder to make this equation true? 16!
So x = 16

16 is the number of golf balls the Ricardo began with.

8 0
3 years ago
Samuel is solving the equation 3(x - 1) + 4 = 2 - (x + 3). Which equivalent equations might Samuel use? Select the TWO correct a
mote1985 [20]

A= 3, and 4. (c & d)

1. Solve the Equation: 3(x - 1) + 4 = 2 - (x + 3)\\, to get

------------------------------------------

1a. Use the distributive property to multiply 3 by x−1.

3x−3+4=2−(x+3)

1b. Add −3 and 4 to get 1.

3x+1=2−(x+3)

1c. To find the opposite of x+3, find the opposite of each term.

3x+1=2−x−3

1d. Subtract 3 from 2 to get −1.

3x+1=−1−x

1e. Add x to both sides.

3x+1+x=−1

1f. Combine 3x and x to get 4x.

4x+1=−1

1g. Subtract 1 from both sides.

4x=−1−1

1h. Subtract 1 from −1 to get −2.

4x=−2

1i. Divide both sides by 4.

x=4−2​

1j. Reduce the fraction 4−2​=−0.5 to lowest terms by extracting and canceling out 2.

x=−21​ or x = -21

-------------------------------------

Now that you know the answers, solve the others:

2. A= 1, so this is wrong. How I solved it is shown below:

-----------------------------------

1a. Add −3 and 4 to get 1.

3x+1=2−x+3

1b. Add 2 and 3 to get 5.

3x+1=5−x

1c. Add x to both sides.

3x+1+x=5

1d. Combine 3x and x to get 4x.

4x+1=5

1e. Subtract 1 from both sides.

4x=5−1

1f. Subtract 1 from 5 to get 4.

4x=4

1g.Divide both sides by 4.

x=44​

1h. Divide 4 by 4 to get 1.

x=1

----------------------------

3. A= .5, so it is Correct. Work below

-----------------------------

3a. Add x to both sides.

3x+3+x=5

3b. Combine 3x and x to get 4x.

4x+3=5

3c. Subtract 3 from both sides.

4x=5−3

3d. Subtract 3 from 5 to get 2.

4x=2

3e. Divide both sides by 4.

x=42​

3f. Reduce the fraction 42​=0.5 to lowest terms by extracting and canceling out 2.

x=21​ (A = 1/2 or .5)

-----------------------------

4. A= .5, so it is correct. Work below. Now we have our 2, so we don't need to do it again.

-------------------------------

4a. Add −1 and 4 to get 3.

3x+3=2−x+3

4b. Add 2 and 3 to get 5.

3x+3=5−x

4c. Add x to both sides.

3x+3+x=5

4d. Combine 3x and x to get 4x.

4x+3=5

4e. Subtract 3 from both sides.

4x=5−3

4f. Subtract 3 from 5 to get 2.

4x=2

4g. Divide both sides by 4.

x=\frac{2}{4}

4h. Reduce the fraction 42​=0.5 to lowest terms by extracting and canceling out 2.

x=\frac{1}{2}

7 0
3 years ago
Please help with two and four
bagirrra123 [75]
Question 1)
575 = 100%
57.5= 10%
57.5 × 2= 115 (20%)

question 2)
575=100%
57.5=10%
115=20%
5.75=1%.

5.75 × 4=22.8 (4%)

22.8 (4%) + 115 (20%) =137.8(24%) which would be rounded up to 138

hope this helps♡♡~~Chyna
4 0
3 years ago
How do you convert 15x + 17y = 17 into slope intercept form?
Daniel [21]

Answer:

y = -15/17x + 1

Step-by-step explanation:

15x + 17y = 17

17y = 17 - 15x

y = 1 - 15/17x

y = -15/17x + 1

8 0
3 years ago
Read 2 more answers
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