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
astraxan [27]
3 years ago
11

Please help me with this math

Mathematics
1 answer:
Basile [38]3 years ago
5 0

Answer:

<h2>C. Aka  z = -3.</h2>

Step-by-step explanation:

Subtract 7 from both sides.

We have:

-3z-4z=21

So:

-7z=21

21/-7 = -3

The answer is C.

You might be interested in
Compare how you would make a model and note how to find the sum and difference of two stones weighing 2/8 pounds and 3/8 pounds
OverLord2011 [107]
You would subtract 3/8-2/8, which equals 1/8. For drawing a model draw fraction strips to help.
:)
4 0
4 years ago
Read 2 more answers
Help me pleasee!!!!!!!!!!!!
tresset_1 [31]

Answer:

Step-by-step explanation:

Angles 1, 2, and 3 are supplementary (they add up to equal 180). If angles 1 and 3 are 20 each, then their sum in 40, making angle 2

180 - 40 = 140. If this central angle is 140 degrees, then the measure of the arc that it cuts off also measures 140 degrees. This is not to be confused with the arc length, which is not even remotely the same thing!

4 0
3 years ago
Help me please!! If you do you will get 25 points :)
Radda [10]

Answer:

24 units by 15 units

Step-by-step explanation: To find how many units the length and width are, divide each by 5:

120/5 = 24

75/5= 15

For every 5 feet, there is 1 unit .

6 0
3 years ago
Some conveyor belts have two pulleys. If one pulley has a diameter of 45 cm and another has a diameter of 20 cm, what is the rat
siniylev [52]
20:45 or 4:9 if simplified
5 0
3 years ago
19-x is greater than or equal to 21
Sedaia [141]
Could you possibly add to this post what your goal is?  Are you supposed to graph this inequality?

19-x≥21     can be solved for x.  Please do that now.  If you have the skill and the interest, please graph your solution.
8 0
4 years ago
Other questions:
  • Alexis bought x boxes of cereal for $3 each, including tax, and paid with a $20 bill. Which expression represents the total amou
    8·2 answers
  • Pls help im having such a bad day already and i get yelled at 24/7
    14·2 answers
  • Imagine a situation where a person is using a garden hose to fill the child’s pool. Think of two quantities that are related in
    13·1 answer
  • PLEASE SHOW THE STEPS TO ALL THE QUESTIONS FOR 20 POINTS!
    12·1 answer
  • • A photo store charges $1 for a print of a 5-inch * 7-inch photo, and $2 for a print
    5·2 answers
  • How do i simplify the rational function: (x^2-4)/(x+2) if x ≠ -2?
    7·1 answer
  • 1.
    10·1 answer
  • Drug Name Half-life
    11·1 answer
  • This is my last question I need help with.
    8·1 answer
  • The vertices of triangle DEF are D(12, -8), E(-4, -8), and F(-4, 16). The triangle is dilated with a scale factor of 1/4. Estima
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!