3 years ago

What is the value of the expression below when z=7 ? 3z−3

Mathematics

2 answers:

lana66690 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

First you plug in the 7

3(7)-3

which equals

21-3

this equals 19

melisa1 [442]3 years ago

3 0

Answer:

Step-by-step explanation:

We have the expression

3z-3

We know that z=7. Therefore, we can substitute 7 in for z.

z=7

3(7)-3

Now, solve according to PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction)

Multiply 3 and 7 first.

21-3

Subtract 3 from 21.

The value of 3z-3 when z=7 is 18

You might be interested in

Please help UwU<br><br>also hope your day is going GREAT <br>if correct i will give BRAINIEST

Grace [21]

90 is the answer to your question!

3 0

3 years ago

Shana makes a 3 gallon batch of lemonade. Each 1 gallon batch requires 2.5 pints of fresh lemon juice. How many cups of lemon ju

GuDViN [60]

For a 3 gallon batch she will need 7.5 pints of lemonade

For 3 batches of the 3 gallon batch she will need 22.5 pints of lemonade

Sorry I didn’t know which one you wanted

6 0

2 years ago

What is the distance between Point (3,6) and the midpoint of the line segment connecting Points (5,6) and (7,-2)

vagabundo [1.1K]

Here is my step-by-step work. Feel free to ask questions about anything you found confusing! :) I got distance= 5units.

7 0

4 years ago

Billy invests $30,000 at a 5.5% simple interest rate. After some time had passed, he had $35,775 in the bank. How long did he ha

Vlad1618 [11]

I think it’s 3.5 years

4 0

4 years ago

36 marbles are red. 80 marbles are blue. Write the ratio in simplest form

AveGali [126]

36:80
Final answer is 9:20

8 0

3 years ago

What is the value of the expression below when z=7 ? 3z−3 ​​

What is the value of the expression below when z=7 ? 3z−3