Register
Use the expression to answer the question. 7x2y - 3z What is the value of the expression when x = 3, y = 5, and z = -4? A. 198 B. 222 C. 303 D. 327
99.3k views
0 votes
Use the expression to answer the question.

7x2y - 3z
What is the value of the expression when x = 3, y = 5, and z = -4?
A. 198
B. 222
C. 303
D. 327

User Meseret
by
7.2k points

1 Answer

8 votes
7x2y-3z
Substitute all the numbers!

So: 7x will be 7(3), 2y will be 2(5) and 3z will be 3(-4)

7(3) • 2(5)- 3(-4)
REMEMBER PEMDAS
First multiply and then subtract, this is the right order:

21•10 = 210
3(4) = 12
So: 210-12= 198
User Sandeep Ranjan
by
8.5k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.6m questions

11.3m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!