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
kifflom [539]
2 years ago
15

Help please. Algebra.

Mathematics
1 answer:
Crazy boy [7]2 years ago
8 0

Answer:

D would be the correct answer.

As you can see in the second equation, y is already isolated. So, we can substitute it into the first equation, to solve for x.

Let me know if this helps!

You might be interested in
If someone could help me that would be amazing! Thank you!
Anastasy [175]
I’d say 135 or B! I hope this helps!
4 0
3 years ago
Can anyone please help me with number 17?
sweet-ann [11.9K]

The answer is G. I know because, 1.75 * 3 (slices of pizza) = 5.25.

13.75 - 5.25 = 8.5

8.5 / 4 (hot dogs) = 2.1 (price per hot dog)

We can apply this to Sarah by saying

2 * 1.75 = 3.5

3 * 2.1 = 6.3

Added equals 9.8 or 9.75 (Sarah's total)

Correct me if I am wrong hope this helps:)

7 0
3 years ago
Find dy/dx if y=(4x^2-5x)^8
musickatia [10]

dy/dx = 8(8x - 5)(4x² - 5x )^ 7

differentiate using the ' chain rule '

dy/dx = 8(4x² - 5x)^ 7 × d/dx (4x² - 5x)

         = 8(4x² - 5x)^ 7  × (8x - 5)

         = 8(8x - 5)(4x² - 5x)^{7}



6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx-3%7D%7Bx%2B2%7D%20%3D%5Cfrac%7B1%7D%7B5%7D" id="TexFormula1" title="\frac{x-3}{x+2
Shkiper50 [21]

Answer:

x=17/4

Step-by-step explanation:

(x-3)/(x+2)=1/5

cross product

1(x+2)=5(x-3)

x+2=5x-15

5x-x-15=2

4x-15=2

4x=2+15

4x=17

x=17/4

3 0
3 years ago
In a recent student government​ election, the ratio of students who voted for the winner to all the students who voted was 0.55
Temka [501]
The ratio being 0.55 means 55% of students voted for the person who ended up winning. If there were 40 people who voted, just find 55% of 40.
This is done by 0.55 • 40, which equals 22.
So 22 students voted for the person who ended up winning.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Every day a factory produces 5000 light bulbs, of which 2500 are type 1 and 2500 are type 2. if a sample of 40 light bulbs is se
    7·1 answer
  • Two cars start from the same place driving at the same rate, one heading north and the other heading east. After two hours the c
    9·2 answers
  • The sides of a rectangle are 8cm and 6cm. What is the length of the diagonal. 12cm 10cm 9cm 7cm
    9·2 answers
  • A train leaves the station at noon. the train is 180 miles from its destination at 12:45 pm and 90 miles from its destination at
    12·1 answer
  • ASAP PLS.
    5·1 answer
  • What does it mean to find the discriminant of an equation such as x+18 = -x^2
    10·1 answer
  • Pls answer these questions
    12·1 answer
  • **WILL GIVE BRAINIEST Whats the value of x
    6·1 answer
  • Help, How do you graph this, and what's the solution. Brainliest promised if correct
    5·1 answer
  • Can someone help me?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!