1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
juin [17]
3 years ago
6

Cant figure how to answer this

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
4 0

Answer:

-5(2) (-2) +2 + 4(-2) +7 = 21

-4(2) -2(-2) -10 = -14

21/14 = -1.5 or -1 1/2

You might be interested in
Solve and graph |-8x|<8 help me lol
gregori [183]

Step-by-step explanation:

|-x|<1 --> -1<-x<1 --> -1<x<1

so the graph is the striped part

3 0
3 years ago
Which linear equations have an infinite number of solutions? Check all that apply.
ladessa [460]

Answer:

a) (x – 3\7) = 2\3 (3\2x – 9\14 )

c) 12.3x – 18 = 3(–6 + 4.1x)

Step-by-step explanation:

A linear equation can be said to have an infinite number of solutions when the number of the right hand side is the same at the number on the left hand side of the equation.

For example:

2 = 2 or x = x or 0 = 0

Solving the question above:

Which linear equations have an infinite number of solutions? Check all that apply.

a) (x – 3\7) = 2\3 (3\2x – 9\14 )

x - 3/7 = 6x/6 - 18/42

x - 3/7 = x - 3/7

Collect like terms

x - x = -3/7 + 3/7

0 = 0

The linear equation in option a has an infinite number of solutions

b) 8(x + 2) = 5x – 14

8x + 16 = 5x - 14

Collect like terms

8x - 5x = -14 - 16

3x = -30

x = -30/3

x = -10.

The linear equation in Option b has a true solution.

c) 12.3x – 18 = 3(–6 + 4.1x)

12.3x - 18 = -18 + 12.3x

Collect like terms

12.3x - 12.3x = -18 + 18

0 = 0

The linear equation in Option c has infinite number of solutions

d) 1\2(6x + 10) = 7(3\7x – 2)

6x/2 + 5 = 21/7x - 14

3x + 5 = 3x - 14

Collect like terms

3x - 3x = -14 - 5

0 = -19

The linear equation Option d has no solution

e) 4.2x – 3.5 = 2.1 (5x + 8)

4.2x - 3.5 = 10.5x + 16.8

Collect like terms

4.2x - 10.5x = 16.8 + 3.5

-6.3x = 20.3

x = -20.3/6.3

x = -3.22

Hence, the linear equation in Option e has a true solution

Therefore, the linear equations have an infinite number of solutions are:

a) (x – 3\7) = 2\3 (3\2x – 9\14 )

c) 12.3x – 18 = 3(–6 + 4.1x)

8 0
3 years ago
Read 2 more answers
141.1933-67.53 =<br> (Divided, not minus)
Sphinxa [80]

Answer: I think its 2.09

Step-by-step explanation:

But i'm not sure.

5 0
3 years ago
Mary had five and one-half dollars. She spent tw wo and one-fourth dollars on a snack. How much money does Mary have left?
Levart [38]
5/1-1/4=4/3 i thinkkkkkkkkkk so
7 0
3 years ago
Help Please really do need help
Ksju [112]

Answer:

your answer would be a whole number, so your answer would be 1,000 i think.

this should be the answer because if you multiply

9*1000 you get  9000

if you multiply

25 * 1000 you get 25000

so on and so on

Step-by-step explanation:

hope this helps :)

5 0
2 years ago
Other questions:
  • The slope of MJ is –4, and MJ AP
    7·1 answer
  • Plz help to do it of math​
    15·1 answer
  • What is the slope of the equation y=5/4x-7/4?
    12·2 answers
  • 5x^2-125=0 answer plss
    7·1 answer
  • Three friends are sharing equally 3/4 of a pizza. Each person receives 1/4 of the pizza.
    13·1 answer
  • Help? brainliest if i can..
    8·2 answers
  • Identify a possible measure of the reference angle sketched in standard position
    7·1 answer
  • Given the exponential function .
    14·1 answer
  • HELPPPPPPPPPPPPPPP!!!!!!!!
    9·1 answer
  • PLEASEEE HELP! What is the simplest radical form of the expression? (8x^7y^4)^2/3
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!