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
Nat2105 [25]
2 years ago
10

I’m having trouble finding the answers to this problem

Mathematics
1 answer:
slamgirl [31]2 years ago
3 0

Step-by-step explanation:

Solve by Subsitution

x = 50 - y

Replace this into the second equation

y(50 - y) = 300

50y -  {y}^{2}  = 300

Write in standard form

-  {y}^{2}  + 50y = 300

Use the quadratic formula, and our answer will be

(6.97,43.02)

(43.02,6.97)

You might be interested in
PLEASE HELP ME!!! HELP HELP HELP HURRY HURRY
Sever21 [200]

Answer:

Part A: yes it is a function because every input value (x) produces only one output value (y).

Note: It is still a function if different x values produce the same y value, in this case, x=1 and x=-1 produce the same y value 1, but it is NOT a function if y=1 and y=-1 have the same x value x=1.  

Part B: when x=30: f(30)=17*30+50=560

if means that the cost of renting the truck for 30 hours is 560 dollars.

this help?

3 0
3 years ago
Susan needs to buy 3 helium balloons. She can buy individual balloons for $2.75 each, or a 3-pack of balloons for $7.80. How muc
Mrac [35]

Answer:

15

Step-by-step explanation:

8.25 minus 7.80 is 0.45 45 divided by 3 is 15 so the answer is 15

8 0
3 years ago
Substation method x-2y=5 ,<br> 3x-5y=8
valina [46]
x-2y=5 \\&#10;3x-5y=8 \\ \\&#10;\hbox{solve the first equation for x:} \\&#10;x-2y=5 \ \ \ |+2y \\&#10;x=2y+5 \\ \\&#10;\hbox{substitute 2y+5 for x in the second equation:} \\&#10;3(2y+5)-5y=8 \\&#10;6y+15-5y=8 \\&#10;y+15=8 \ \ \ |-15 \\&#10;y=-7 \\ \\&#10;x=2y+5=2 \times (-7)+5=-14+5=-9 \\ \\&#10;\boxed{(x,y)=(-9,-7)}
6 0
3 years ago
What is the slope of the line that passes through the points (4, 6) and<br> (-16, -18)?
storchak [24]

Answer:

-3 / 5

Step-by-step explanation:

18-6 / -16-4

12 / -16-4

12 / -20

-3 / 5

3 0
3 years ago
Help me please,Thanks
Alborosie

the formula for volume of a prism is base x height
4 0
3 years ago
Other questions:
  • Will mark brainliest to first answer!!!
    14·2 answers
  • there are 18 bikes in a rack. there are 4 more blue bikes than yellow, and 2 less yellow bikes than green bikes. how many bikes
    5·1 answer
  • Suppose Cho deposits $200 into a bank account for 3 years. The annual interest rate is 5%. Find the simple interest earned.
    14·1 answer
  • the length of a rectangle is 2 more inches than its width. The perimeter of the rectangle is 24 inches
    13·1 answer
  • myra swims 3/5 of a mile farther than luke.if luke swims 2 and 4/10 miles, how many milrs does myra swim?
    11·2 answers
  • A certain element has a half life of 4.5 billion years. a. You find a rock containing a mixture of the element and lead. You det
    7·1 answer
  • Which of the following tables shows the correct steps to transform x2 + 10x + 24 = 0 into the form (x − p)2 = q? [p and q are in
    6·1 answer
  • Need help its 7th grade math​
    9·2 answers
  • R + s² at r = 4, s = 1 ( Pls show work) AND NO LINKS THX UwU
    14·1 answer
  • To solve by completing the square, what needs to be moved in this equation?<br> x² = 9 - 4x
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!