All categories

3 years ago

The equation - 21 = -15 is solved in several steps below. 2 For each step, choose the reason that best justifies it.

Mathematics

1 answer:

tatyana61 [14]3 years ago

7 0

Answer:

3. Simplifying

4 multiplication property of equality.

5. simplifying

Step-by-step explanation:

y/2 -21+21 = -15+21

To get to the next step we add -21+21 on the left and -15+21 on the right

We are simplifying on each side

Then we multiply by 2 on each side for the next step

We use the multiplication property of equality.

Finally we simplify in the last step

You might be interested in

I NEED HELPPP PLEASE

Tanzania [10]

Answer:

252 cubic cm

Step-by-step explanation:

V = (l x w x h ) / 3

V = (6 cm x 9 cm x 14cm) / 3

V = 756/3 = 252 cubic cm

8 0

3 years ago

Read 2 more answers

An account with an initial balance of $4,000.00 and a 3% interest rate has a balance of $4,121.66 at the end of one year. What i

Gekata [30.6K]

The effective annual yield is 3.04%

What is effective annual yield?

Effective annual yield is the rate of return that considers the frequency of compounding, in other words, the number of times in a year that interest on the balance is compounded.

The easiest way to determine the effective annual yield in this case is to compare the end of the year balance with the initial balance at the start of the year

effective annual yield=(ending balance/initial balance)-1

ending balance=$4,121.66

initial balance=$4000

effective annual yield=($4,121.66/$4000)-1

effective annual yield=3.04%

Another way to determine the effective annual yield is use the below formula which considers that interest rate is 3% compounded monthly, in other words, n, the frequency of compounding is 12

EAR=(1+r/n)^n-1

r=3%

n=12

EAR=(1+3%/12)^12-1

EAR=3.04%

Find out more on effective annual yield on :brainly.com/question/3125221

#SPJ1

6 0

2 years ago

Drinks at the fair cost 2.50. Use and equation to represent the relationship between the number is drinks bought and the cost

never [62]

Answer: 2.50x

Step-by-step explanation: The variable x refers to how many drinks are bought if you buy 5 drinks you plug in 5 to multiply by 2.50. I hope this helps! :D

3 0

3 years ago

Read 2 more answers

Brian is playing a carnival game. He is blindfolded while he throws a dart at a board of 12 balloons, as shown below. Each ballo

Vadim26 [7]

Sorry, the text you have requested has been deleted. Make sure that you have the correct URL and the owner of the text hasn't deleted it.

7 0

3 years ago

Which expression represents the volume, in cubic units, of the composite figure?

Kipish [7]

The missing figure is attached

The expression represents the volume in cubic units of the composite figure is (Four-third)π(10)³ + π(10)²(28) ⇒ 1st answer