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
FromTheMoon [43]
3 years ago
5

Please help. Thank you

Mathematics
1 answer:
Aloiza [94]3 years ago
8 0
Part A)
From equation (1) the value of y comes out to be:

y = 4x - 15

Using this value, in equation 2, we get:

5x + 3(4x-15) =  40
5x + 12x - 45 = 40
17x = 85
x = 5

y = 4x - 15
⇒
y = 4(4) - 15
y = 20 - 15
y = 5

Therefore, the solution set to the given equations is (4, 5)

Part B)
The graph of the lines intersect at one point, so they have a unique solution.(First option is correct)
You might be interested in
Patty is building a rope ladder for a tree house she needs to 6 ft pieces of rope for the side of the ladder she need seven piec
Tanzania [10]

Answer:

i have no idea

Step-by-step explanation:

6 0
3 years ago
Quan's last paycheck shows that he eamed $210.00 for 24 hours of work. What is his hourly rate of pay?
bija089 [108]

Answer: 8.75$

Step-by-step explanation: to find the answer to this problem, you would divide his total amount of cash earned by the number of hours he worked to see how the cash is split between each hour. By doing this, you should get 8.75$ and hour.

4 0
4 years ago
PLS HELP ME ASAP FOR 9 (SHOW WORK!!)
kirill [66]
C because 2,400 divided by 450 is a little more than 5 and 5 times 12 is 60 and a little more than 60 is 64.
3 0
4 years ago
Quintina decided to increase the deduction percentage of her federal income tax rate from 14% to 16%. Quintina’s gross pay per m
Tju [1.3M]

Answer:

ok good  Step 1

Write your problem.

537.95 x 9.5% = ?

Step 2

Convert the % to a decimal:

9.5% to 0.095

Step 3

Rewrite the problem with decimal replacing the percentage.

Now the problem looks like this:

537.95 x 0.095 = 51.11

This problem gives the amount of the tax.

Step 4

Add the original price with the tax amount:

537.95 + 51.11 = $589.06 (total cost)

Step-by-step explanation:

4 0
3 years ago
Margo can purchase tile at a store for $0.89 per tile and rent a tile saw for $36. At another store she can
cricket20 [7]

Answer:

90

Step-by-step explanation:

1. Start by making functions for the numbers

  • y=.89x+36
  • y=1.29x

2. You can plug in these functions into a graph to figure out the x variable

  • The intersection point of the two lines reveals the x and y
  • The x would be your answer

3. To check if your x is right, plug it back into the two equations

  • .89(90)+36=116.1
  • 1.29(90)=116.1
8 0
3 years ago
Other questions:
  • Which of these triangles are definitely right triangles? Explain how you know.
    10·2 answers
  • What are the zero(s) of the function f(x) = the quantity of 4 x squared minus 36 x, all over x minus 9?
    12·2 answers
  • The measures of the angles of △ABC are given by the expressions in the table. Angle Measure
    9·2 answers
  • What is a true statement about a 45-45-90 triangle?
    15·1 answer
  • Is (6 2) (5 3) (4 2) (3 5) a function
    7·1 answer
  • Suppose a railroad rail is 2 kilometers and it expands on a hot day by 19 centimeters in length. Approximately how many meters w
    9·1 answer
  • Which expression is equivalent to
    12·1 answer
  • 42x+45=56z<br> 43x+56=34z
    15·1 answer
  • What is the total number of pages in the e-book
    9·1 answer
  • I like a girl how do i tell her ?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!