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zubka84 [21]
4 years ago
11

Which is the value of this expression when a=-2and b=-3

Mathematics
1 answer:
monitta4 years ago
6 0

Let's solve your system by substitution.

a=−2;b=−3

Step: Solve a=−2for a:

a=−2

Step: Substitute−2for a in b=−3:

b=−3

b=−3

Answer:

a=−2 and b=−3

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A credit card has a balance of $2,150.00 with an annual percentage rate of 22.9%. How much interest is charged in a one-month bi
Sever21 [200]

Answer: $3.42

Step-by-step explanation:

Interest= Principal x Rate x Time

From the question, Principal =$2,150

Rate= 22.9% annually means per year, to calculate the monthly rate, we divide by 12

=22.9%/12 = 1.908% per month

Time = one month, meaning one month out of 12months = 1/12

I is therefore: 2150 x 1.908% x 1/12

= 2150 × 0.01908 x 0.0833

=$3.42

I hope this is clear, please mark as brainliest answer.

8 0
3 years ago
What are the steps on finding common denominators. PLEASE HELP
Dmitrij [34]

Step-by-step explanation:

to find a common denominator, you have to find a number that "works" with every other number.

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2/4 and 8/12

First you need to find the common factor between 4 and 12, so list all your fours

4, 8, 12, 16, 20

Now list all your twelves

12, 24, 36, 48, 60

to find the common factor you look at both your list of numbers and find one that's the same, sometimes it takes a long list of numbers to find the common factor, but you will run into one.

So by looking at our list we see that 4 and 12 share the common factor of 12. but since 8/12 already has a denominator of 12, we are going to leave it alone.

now think about what you would multiply 4 by, to get to 12. The answer is

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to make the numerator correct, you multiply it by the same number you did 4, so since your faction is 2/4 you should do 2 x 3 = 6

now you have your answer,

2/4 and 8/12 turns into

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and that's how you find it, let me know if you have questions :)

7 0
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2 divided by 9/10<br> (i know this is simple but I need help ASAP)
tigry1 [53]

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Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
PLSSS HELP IF YOU TURLY KNOW THISS
Montano1993 [528]
It is 7

2*2x = 4x + 2 = 30

4x = 28

x = 7
6 0
3 years ago
Read 2 more answers
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