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
nikklg [1K]
2 years ago
12

Please help i will give you brainliest and every yhing

Mathematics
1 answer:
Lina20 [59]2 years ago
7 0

first subtract the last equation from the first. this gives:-

-x + y = -8 .....................(1)

Then multiply the first equation by 2 and add it to the 2nd equations This gives

9x = 18  

so x = 2

and from equation  (1)  y = -8 + 2 = -6

Substituting for x and y in the second equation

z =  (24 -5(2) -12) / 2 =   1


Answer is choice b.

You might be interested in
Gerry is shopping for clothes at the mall.He buys 4 new shirts for $6.00.What is the unit rate for the shirts
elena-s [515]

the unit rate is 4:6

5 0
3 years ago
Read 2 more answers
Solve for t.<br> - 9r +5 &lt;17<br> AND 132 + 25 &lt;-1
Deffense [45]

Answer:

1.) r>-3/4 and 2.) 157<-1

3 0
2 years ago
Martin can run 1 mile in 7 minutes. What valid proportions can be written from this information? Check all that apply. StartFrac
Tpy6a [65]

Answer:

<u>1/7=3/21</u>

<u>7/1=21/3</u>

the other fractions are not correct/valid therefore the fractions above are the correct answers

Step-by-step explanation:

Let me know if you need any other help:)

3 0
3 years ago
Read 2 more answers
If fix)=x2-2 and g(x) = x-3, what is(f•g)(x)?
borishaifa [10]

Answer:

The last option is correct. (f*g)(x) = x² - 5

Step-by-step explanation:

Since is f * g you have to multiply them together.

x² - 2 * x - 3 (x)

Next ust simplify.

x² -5x

6 0
2 years ago
If ∠a = 90°, find the measures of ∠b, ∠c and ∠d.
nydimaria [60]

Answer:

m∠b = 35°

m∠c = 145°

m∠ d = 35°

Step-by-step explanation:

To find m∠b, we use Definition of Supplementary Angles:

180 - (90 + 55) = 35°

To find m∠c, we also use Definition of Supplementary Angles:

180 - 35 = 145°

To find m∠d, we use Vertical Angles Theorem:

m∠b = m∠d = 35°

5 0
3 years ago
Read 2 more answers
Other questions:
  • If anyone answers ALL i will give all my points and will give Brainliest
    14·2 answers
  • The formula d = rt gives the distance traveled in time t at rate r. A truck rides for 1.5 hours and travels 76 miles. what was t
    13·1 answer
  • The sum of three consecutive rven integers is 72. Let x represent the first integer, x+2 represent the srcond integer, and x+ 4
    9·1 answer
  • Please! I need immediate help with this
    9·1 answer
  • Please help me its just a problem with shaded areas and all i want is the answer but you can show the work if u want 2 plz also
    11·1 answer
  • Police can estimate the speed of a vehicle before the brakes are applied using the formula 0.75d=(s^2)/(30.25) where s is the sp
    5·1 answer
  • How do you write 30.0 in scientific notation? ____× 10^_____
    5·2 answers
  • Please help ill give you points
    7·2 answers
  • A driver travelled a distance of 864 km in 12 hours what is the speed of car
    8·2 answers
  • Jan used 35 blocks to make 5 buildings. Each building is made of an equal number of blocks. Which of the following shows how to
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!