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
gizmo_the_mogwai [7]
3 years ago
12

Solve using the substitution method x-7y=19 5x=-2y-16

Mathematics
2 answers:
bonufazy [111]3 years ago
8 0

Answer:

(-2,-3)

Step-by-step explanation:

subtract -7y from both sides to get x = 7y + 19

plug in

5(7y + 19) = -2y - 16

distribute the 5

35y + 95 = -2y - 16

subtract 95 from both sides

35y = -2y - 111

add -2y to both sides

37y = -111

divide both sides by 37

y = -3

plug in the y to find the x

x = 7(-3) + 19

multiply 7 and -3

x = -21 + 19

subtract

x = -2

make into a coordinate

(-2, -3)

Vikki [24]3 years ago
5 0

x - 7y = 19          <em>multiply both sides by 5</em>

5x - 35y = 95

Substitute 5x = -2y - 16:

(-2y - 16) - 35y = 95

(-2y - 35y) - 16 = 95            <em>add 16 to both sides</em>

-37y = 111            <em>divide both sides by (-37)</em>

y = -3

Put the volue of y to the first equation:

x - 7(-3) = 19

x + 21 = 19            <em>subtract 21 from both sides</em>

x = -2

<h3>Answer: x = -2 and y = -3 → (-2, -3)</h3>
You might be interested in
The Yasuda family bought a toy that cost t dollars and a game that cost g dollars. Both were on sale. Which of these methods cou
zmey [24]

The equation that the clerk can use to calculate their total bill is t + g.

<h3>How to illustrate the equation?</h3>

From the information given, Yasuda family bought a toy that cost t dollars and a game that cost g dollars.

The equation to calculate their total bills will be:

= t + g

where,

t = cost of toy

g = cost of game.

In this case, the equation that the clerk can use to calculate their total bill is t + g .

Learn more about equations on:

brainly.com/question/2972832

#SPJ1

7 0
2 years ago
Miss McIntosh leaves a $6.75 tip for her waiter. If her tip was 20% of the cost of her meal, what was the cost of her meal?
zalisa [80]

Answer: 72$

Step-by-step explanation:

because

5 0
3 years ago
Need the help thanks guys
Diano4ka-milaya [45]

Answer:

x=−5+√29 or x=−5−√29

Step

Let's solve your equation step-by-step.

x2+10x+10=14

Step 1: Subtract 14 from both sides.

x2+10x+10−14=14−14

x2+10x−4=0

For this equation: a=1, b=10, c=-4

1x2+10x+−4=0

Step 2: Use quadratic formula with a=1, b=10, c=-4.

x=

−b±√b2−4ac

2a

x=

−(10)±√(10)2−4(1)(−4)

2(1)

x=

−10±√116

2

x=−5+√29 or x=−5−√29

7 0
3 years ago
Find the slope and y-intercept for the table and then write the equation in form y=mx+b. Explain how you got your answer.
poizon [28]

Answer:

y=4x+1

Step-by-step explanation:

to find the slope (m) you have to calculate what rise over run is for you table, in this table rise (y values) go up by 4 every time. so thats the numerator for your slope. the run is how much the x value goes up everytime, it goes up by 1 so the denomenator is 1, this simplifies to 4 so m= 4. the y intercept (b) is the y point where x equals zero so it is 1. x and y are simply variables used when graphing so they have no set values.  

6 0
3 years ago
What is the answer to this?
snow_tiger [21]

Answer:

it cannot be simplified

Step-by-step explanation:

they are not the same term so there is no way to add them together

3 0
3 years ago
Other questions:
  • Need help asappp
    8·1 answer
  • Which function is equivalent to f(x) = lnx?
    9·2 answers
  • A school newspaper reporter decides to randomly survey 15 students to see if they will attend Tet festivities this year. Based o
    13·1 answer
  • If an event is likely to occur, which of the following best describes the probability that the event will occur?
    12·1 answer
  • Diego has a water bottle and pours 6.8 ounces of water out from the full bottle. He estimates that he poured out 20% of the wate
    14·1 answer
  • X + y ≥ 3 <br> 5x + 2y &lt; 10
    5·1 answer
  • HELP FAST PLSSSS IM DESPERATE RLLY
    12·2 answers
  • Reason A pack of 140 stickers contains sheets of 28 stickers. Each
    5·1 answer
  • LOTS OF POINTS!!!!!!!! HELP PLEASE RSM IS DUE TOMORROW!!!!!!!
    9·1 answer
  • Shhh they are having a date!!! (っ^▿^)۶٩(˘◡˘ )
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!