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
guajiro [1.7K]
3 years ago
7

Solve the following system of equations using substitution, showing all work.

Mathematics
2 answers:
iogann1982 [59]3 years ago
4 0

Answer:

x= -1

y= 1

Step-by-step explanation:

since y=2x+3; plug into other equation

2x+5(2x+3)=3

(distribute 5 to 2x+3)

2x+10x+15=3

(add like terms)

12x= -12

divide by 12 to get x alone

x=-1

now you cand plug in x to either equation to solve for y, but plug into the first equation to make it easier.

y=2(-1)+3    

y=-2+3

y=1

enyata [817]3 years ago
3 0

x=negative 1

y=1

showing my work Substitute y=2x+3y=2x+3 into 2x+5y=32x+5y=3.

12x+15=312x+15=3

2 Solve for xx in 12x+15=312x+15=3.

x=-1x=−1

3 Substitute x=-1x=−1 into y=2x+3y=2x+3.

y=1y=1

You might be interested in
Pls heeeeeeeeeeeeeeeeeeeeeeeeelp
bonufazy [111]
So
Total cost of the workbooks is d
And the number of workbooks is t
Therefore d = 95
95=19t
t=95/19=5
5 workbooks
6 0
3 years ago
A construction company orders 12 tons of pea gravel how many pounds of pea gravel do they order
poizon [28]
Each ton is equal to 2,000 pounds, therefore each ton (12) times the number of pounds per ton (2,000) is 24,000 pounds! Hope this helps!!
6 0
3 years ago
After driving to a riverfront parking lot, Bob plans to run south along the river, turn around, and return to the parking lot, r
mars1129 [50]

Answer:A) 1.5

Step-by-step explanation: Bob runs at the rate of 8mins per mile

In 60mins his rate would be=60/8=7.5

Let a be the distance he further runs south

2s+3.25

Total distance covered in 50mins=Time=distance/speed=

50/60

50/60=2s +3.25/7.5

Cross multiply

60(2s+3.25)=50×7.5

120s+195=375

120s=375-195

S=180/120

S=1.5

5 0
3 years ago
What is 5 divided by 25
disa [49]

Answer:

0.2

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
100 Points
UNO [17]
<span>1) Write the equation in slope intercept form if 

Slope=3/5 and intercept is 2
y = mx + b
m = 3/5 and b = 2
so

</span><span>equation in slope intercept 
</span><span>y = 3/5(x) + 2

</span><span>2. Find the x intercept of the line 5x-2y=10

x intercept when y = 0
so
</span>5x-2y=10
5x-2(0)=10
5x = 10
  x = 2

answer
x intercept (2 , 0)

hope it helps
6 0
3 years ago
Read 2 more answers
Other questions:
  • Buck drove 220 miles in 5 hours. What was his average rate of speed?
    5·2 answers
  • Will mark brainliest, rate and thank pls answer. I don't need an explanation just an answer 3t+8(2t-6)=12+14t 2v+18=16-4(v+7) 4x
    7·1 answer
  • Write a join problem that can be solved by 5/3 - 2/5
    15·1 answer
  • Consider the segment below.
    12·1 answer
  • Pls answer I need this ASAP!!!!!!!
    9·1 answer
  • Point X has coordinates (-4, -5) and point y has coordinates (--1, --5 ) which expression models the distance between points X a
    7·1 answer
  • D 2. Which of the following is correctly written in Standard Form?
    14·2 answers
  • 1. Solve: 9^2x + 1 = 9^3x – 2
    10·2 answers
  • Can someone pleas Help me with this I don't get it. And Thank you o much if you helped me.
    6·2 answers
  • Which is a line segment?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!