answer ALL attachments :){ga – 3 d = 3
–
Solve each system by elimination.
4x – 6y = – 26
9a – 3d = 3
30.
31.
13
2x – 3y = 6
20x + 5y = 120
33.
34.
16x – 9y = 9
10x + 7.5y = 80
2x – 3y = -1
J5x – 2y = -19
36.
37.
13x + 4y = 8
12x + 3y = 0
Sy = 4
3x + 2y = 10
39.
40.
3x + y = 6
(6x + 4y = 15
{
2a + 3b = 12
32.
5a – b = 13
ſ 6x – 2y = 11
35.
-9x + 3y = 16
r + 3s = 7
38.
2r s = 7
3m + 4n = -13
41.
15m + 6n = -19
– x
42. Elections In a mayoral election, the number of votes for the incumbent was
25% more than the number for the opponent. Altogether, the two candidates
received 5175 votes. How many votes did the incumbent mayor receive?
43. Writing Explain how you decide whether to use substitution or elimination to
solve a system.
Solve each system.
5x + y = 0
ſ2m = -4n – 4
7x + 2y = -8
44.
45.
46.
15x + 2y = 30
3m + 5n = -3
8y = 4x
ſv = 91 + 300
80x + 60y = 85 $2x + 3y = 0
47.
48.
49.
71 + 400
100x – 40y = 20
17x 3(2y) + 3
4y
+ 3 = 300
0.02a 1.55 4 | 4y = 2x
50.
51.
52.
= 300
0.5b – 0.02a
= 1.8
2x + y = { + 1
13x – 4y
For each system, choose the method of solving that seems easier to use.
Explain why you made each choice.
3x – 5y = 26 { y = 3x – 3
2m + 3n = 12
54.
55.
56.
-x + 3y = 18
5m + n = -13
(3x – y = 5
3y = 4
S6x – 3y – 3
57.
58.
59.
Ly = 4x + 2
2x – 5y = -6
15x – 5y = 10
{–
–
S2x
ge
62. Break-Even Point A theater production costs $40,000 plus $2800 per
performance. A sold-out performance brings in $3675. How many sold-out
performances will the production need to break even?
63. Weather The equation F = ?C + 32 relates temperatures on the Celsius and
Fahrenheit scales. Does any temperature have the same number reading on
both scales? If so, what is the number?
Find the value of a that makes each system a dependent system.
Sy = 3x + a
64.
Зу = 2х
65.
{y = £ + 4
13x – y = 2
66.
16y – a – 4x = 0 12y
x=a
rep
ase
Use the following system of equations for Exercises 67-70.
5x – 3y = 11
|-x + 12y = 3.5
67. If you want to solve the system by eliminating < (with addition),
by what would you multiply the second equation?
68. If you want to solve the system by eliminating y (with addition),
by what would you multiply the first equation?
69. What is the value of x in the solution? Enter your answer as a decimal.
70. What is the value of y in the solution? Enter your answer as a decimal.
Purchase answer to see full
attachment
Why Choose Us
- 100% non-plagiarized Papers
- 24/7 /365 Service Available
- Affordable Prices
- Any Paper, Urgency, and Subject
- Will complete your papers in 6 hours
- On-time Delivery
- Money-back and Privacy guarantees
- Unlimited Amendments upon request
- Satisfaction guarantee
How it Works
- Click on the “Place Order” tab at the top menu or “Order Now” icon at the bottom and a new page will appear with an order form to be filled.
- Fill in your paper’s requirements in the "PAPER DETAILS" section.
- Fill in your paper’s academic level, deadline, and the required number of pages from the drop-down menus.
- Click “CREATE ACCOUNT & SIGN IN” to enter your registration details and get an account with us for record-keeping and then, click on “PROCEED TO CHECKOUT” at the bottom of the page.
- From there, the payment sections will show, follow the guided payment process and your order will be available for our writing team to work on it.