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
quester [9]
3 years ago
8

I need help i dont understand this​

Mathematics
1 answer:
Nata [24]3 years ago
5 0

Answer:

D

Step-by-step explanation:

Given the 2 equations

4x + 8y = 21 → (1)

y = - \frac{1}{2} x + 3 → (2)

Substitute y = - \frac{1}{2} x + 3 into (1)

4x + 8(- \frac{1}{2} x + 3 ) = 21 ← distribute parenthesis on left side

4x - 4x + 24 = 21 ( subtract 24 from both sides )

0 = - 3 ← not possible

This indicates the system has no solutions

You might be interested in
Cost of a pen: $0.95<br> Markup: 60%
julia-pushkina [17]
Multiply the $0.95 by .06 or if you have a percentage button then do $0.95 by 60% and you’ll get your answer of 0.57
5 0
3 years ago
A brick layer is able to set 2.5 breaks in one minute how many bricks can you set an eight hours
frozen [14]

Answer:

<h2> In 8 hours he will set 1200 bricks</h2>

Step-by-step explanation:

In this problem, we are expected to estimate the number of bricks he can set in 8 hours.

let us convert hours to minutes we have

60 min make 1 hour

x min make 8 hours

cross multiply

x= 60*8

x= 480 min

We are assuming the same rate with which he sets 2.5 brick is the same as the rate with which he will set bricks for the 8 hours windows

so if the bricklayer sets

2.5 bricks in 1min

y bricks in 480 min

Cross multiply we have

y=2.5*480

y= 1200  bricks

hence in 8 hours, he will set 1200 bricks

5 0
3 years ago
What is the value of x in the figure below? to 118° A. 28 B. 62 C. 90 D. 118​
My name is Ann [436]

Answer:

D. 118°

Step-by-step explanation:

x = 118° { being corresponding angles }

5 0
3 years ago
What is the volume of the right triangular prism shown?<br><br> for brainlist
emmainna [20.7K]

Answer: C

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Need all answers for 1, 2, 3, 4 , 5. Who ever answers them first will be mark brainliest!
Anettt [7]

answer

pointers

EXPLANATION

5 0
3 years ago
Other questions:
  • ann is grouping 38 rocks she can put them into groups of 10 rocks or as single rocks what are the differnet ways ann can group t
    6·1 answer
  • HELP ME ASAP PLEASE!!
    11·1 answer
  • Please include work! :)
    10·1 answer
  • In the figure, j∥k and m∠1 = 65°.<br><br> What is the m∠6 ?
    8·1 answer
  • Please use the picture below to find our what x equals
    13·2 answers
  • What are/is the coefficient(s): 47 &gt; 7m - 9
    7·1 answer
  • What is 56x1<br> Just a regular normal question from me<br> Your welcome in advance
    7·2 answers
  • Help me plz plz I’ll give brainlist just plz help!!!!!!!!
    11·2 answers
  • How do you say i dont like you without making it sound offensive?. -.
    10·2 answers
  • 3.78 divided by 1.4 i need help to show my work
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!