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
Mashcka [7]
3 years ago
9

9) y = 7x - 20 3x + 8y = 17 For substitution

Mathematics
1 answer:
xenn [34]3 years ago
3 0
X=3
y=1
Use substitution method starting with the first equation substitute y in the second equation

You might be interested in
Camille is attending a fundraiser. She pays for her admission and buys raffle tickets for $ 5 $5 each. If she buys 1 0 10 raffle
tatyana61 [14]
The question is a little confusing, but I think the answer goes like this:
135 = admission + 5x, and if she bought 10 tickets:
135 = admission + 50, so admission must have cost her $85
The function would be f(x) = 85 + 5x, where x is equal to the number of raffle tickets purchased
6 0
3 years ago
Building a is 160160 feet shorter than building
Serjik [45]
I assume the heights are 160 ft and 1480 ft.

The two heights are unknown, so we will use variable h to help solve the problem.
The shorter building, building A, has height h.
Since building A is shorter by 160 ft, then building B is taller by 160 ft, so the height of building B is h + 160.

Now we add our two heights to find the total height.

h + h + 160 is the total height.
We can write it as 2h + 160

We are told the total height is 1480 ft, so we let 2h + 160 equal 1480, and we have an equation.

2h + 160 = 1480

Subtract 160 from both sides

2h = 1320

Divide both sides by 2

h = 660

h + 160 = 820

Building A measures 660 ft.
building B measures 820 ft.
7 0
3 years ago
#15: A shipment to a warehouse consists of 2,000 watchbands. The
Ad libitum [116K]

2 out of 50 are defective.

Divide 2 by 50: 2/50 = 0.04

Now multiply the total quantity by that:

2000 x 0.04 = 80

80 are likely to be defective.

6 0
3 years ago
GH∥IK. Find GK. I need help with this please
Anon25 [30]

Answer:

Step-by-step explanation:

22

5 0
3 years ago
If 3 centimeters is equal to 30 millimeters, how many centimeters are in 140 millimeters?
harina [27]

Answer:

14

Step-by-step explanation:

divide by 10

3 0
3 years ago
Read 2 more answers
Other questions:
  • Plz help me i need work plz
    8·1 answer
  • Purchasing a car on a loan through the bank or dealership is called:
    9·1 answer
  • T/s - b/s =1 solve for s
    13·1 answer
  • Thelma and Laura start a lawn-mowing business and buy a lawnmower for $225. They plan to charge $15 to mow one lawn. They would
    8·1 answer
  • Given that the points (-3, 6) and (4, 1) are vertices of a rectangle with sides parallel to the axes, how much longer is the len
    13·1 answer
  • To the nearest tent what the area of a circle whose diameter is 9 feet? Use 3.14 for x Please help :’(((( will give 25pts
    5·2 answers
  • Lesson 19 problem set module three grade 7?
    13·2 answers
  • Which pair of diagrams best models the equation 3/4 = 6/8.
    9·1 answer
  • Find the measure of the missing angle.
    10·2 answers
  • 5 (5x6)+(8x9)+6=? 2(5x8)+(8x28)+9
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!