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
Marta_Voda [28]
3 years ago
15

Solve for zzz. 42=-7(z-3)

Mathematics
2 answers:
Gekata [30.6K]3 years ago
6 0

Step-by-step explanation:

42=-7z+21

7z=21-42

7z=-21

z=21/7

z=3

katen-ka-za [31]3 years ago
4 0

Answer:

z=-3

Step-by-step explanation:

42 = -7z+21

-7z=21

z=-3

You might be interested in
Maggie's brother is 4 years younger than three times her age. The sum of their ages is 16.
bearhunter [10]

Answer:

Maggie is 5 years old

Step-by-step explanation:

3M-4+M=16

add 4 to both sides

4M=20

Divide both sides by 4

20/4 = 5

M/Maggie is 5

7 0
3 years ago
Elena has some bottles of water that each holds 17 fluid ounces.How much water is in 51 bottles.
Kitty [74]
Answer: 867

because
if 1 bottle is 17 fluid ounces
than if you multiply 51 bottels
with 17 fluid ounces it gives you
867 fluid ounces.

51 * 17 = 867
3 0
3 years ago
Read 2 more answers
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
Gwar [14]

Answer:

The answer to your question is slope = 0; y = -2

Step-by-step explanation:

Data

A (-2, -2)

B (2, -2)

Process

1.- Calculate the slope

    m = (-2 - (-2)) / (2 - (-2))

    m = ( -2 + 2) / (2 + 2)

    m = 0/4

    m = 0

2.- The equation of the line is

    y - y1 = m(x- x1)

     y - (-2) = 0(x - (-2))

     y + 2 = 0

     y = -2

3 0
3 years ago
Angela and Michelle shared some money in the ratio 4: 9 then Angela gave Daniel half her share.Michelle gave Daniel a third of h
SVEN [57.7K]

Using a system of equations, it is found that £52 was originally shared.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are given as follows:

  • Variable x: Angela's share.
  • Variable y: Michelle's share.
  • Variable z: Daniel's share.

Angela and Michelle shared some money in the ratio 4: 9, hence, considering t as the total:

  • x = \frac{4t}{13}.
  • y = \frac{9t}{13}

Angela gave Daniel half her share.Michelle gave Daniel a third of her share. Daniel was given a total of £20, hence:

\frac{x}{2} + \frac{y}{3} = 20

\frac{4t}{26} + \frac{9t}{39} = 20

\frac{12t + 18t}{78} = 20

30t = 20 x 78

t = 20 x 78/30

t = £52.

More can be learned about a system of equations at brainly.com/question/24342899

#SPJ1

5 0
2 years ago
I need help!!!!!!!!!!!
pashok25 [27]

Account 2 = 80

Account 3 = -25

Account 4 = -40

b) He's broke.

3 0
3 years ago
Other questions:
  • Apply the distributive property to write an equivalent expression <br>4(2+w)​
    13·1 answer
  • A helicopter flies between two islands that are 20 miles apart. The angle of elevation with one island is 15o and 35o with the s
    13·1 answer
  • The graph below shows a line of best fit for the relationship between the number of tickets that Brittany has and the number of
    7·2 answers
  • Help needed ASAP will give brainliest to the person that answers this
    12·2 answers
  • What is the x value such that y =15 - 3x and y = 0? Please explain how you got this answer.
    9·1 answer
  • The US postal service delivered 7.14 x 1010 pieces of mail in the month of December and 3.21 x 1010 in the month of January. Wha
    5·1 answer
  • Solve each equation by taking square roots<br><br> 2n^2 -8=-33
    5·1 answer
  • What are the proofs for these questions?
    11·1 answer
  • The highest common factor (HCF) of 144 and 60,
    10·2 answers
  • The president of the student council wants to survey the student population about parking. She decides to use a random number ta
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!