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
alexdok [17]
3 years ago
7

4x + 9y = 29 x = 5y - 87

Mathematics
1 answer:
Sergio [31]3 years ago
8 0
What I would do here is substitute "5y -87" for x in the  first ecquation, since the second equation is already in the form "x=..." so:


4*(5y-87)+9y=29


getting rid of the bracket:

20y-348+9y=29


adding up:

29y=29+348

29y= 377

dividing by 29:

y=13


and now we can calculate x, which is 5*13-87=65-87=-22

so x=-22
You might be interested in
A hardcover book sells for $24 at the bookmark been pays a total of $25.02 for the book what is the sales tax rate
lys-0071 [83]
To find the tax rate you need to divide

24/25.02=<span>0.959232613909

0.95 would be your answer</span>
3 0
4 years ago
Ari thinks the perfect milkshake has 3 ounces of caramel for every 5
tangare [24]

Answer:

A - They Have Too Much Caramel

Step-by-step explanation:

Ari likes 3 oz caramel for 5 scoops ice cream.

Freeze Zone makes 6 oz caramel with 8 scoops of ice cream.

Divide both amounts of Freeze Zone by 2.

6 oz caramel for 8 scoops of ice cream is the same ratio as

3 oz caramel for 4 scoops of ice cream.

Since Ari likes 3 oz caramel for 5 scoops ice cream,

he will think it's too much caramel for the ice cream.

Answer: A - They Have Too Much Caramel

8 0
4 years ago
What is the y-intercept of this quadratic function f(x) = x2 + 2x + 3
tresset_1 [31]

Hi there!

\large\boxed{0, 3}

Find the y-intercept by substituting in 0 for x:

f(0) = 0² + 2(0) + 3

Simplify:

f(0) = 3

5 0
3 years ago
Read 2 more answers
I NEED HELP ASAP!!!!!!!!
andreev551 [17]

Step-by-step explanation:

slope =  \frac{rise}{run}  =  \frac{y2 - y1}{x2 - x1}  \\  =  \frac{ - 7 - 13}{5 - ( - 3)}  \\  =  \frac{ - 20}{8}  \\ =   \frac{ - 2 \times 10}{2 \times 4}  \\  =  \frac{ - 10}{4}  \\  =  \frac{ - 2 \times 5}{ 2  \times 2} =  \frac{5}{2}

7 0
3 years ago
Vw=6 , uv=14 what is uw
vekshin1

Answer:

21

Step-by-step explanation:

if v=2

then uw=21

because 6/2=3, and

14/2=7

3x7=21

3 0
3 years ago
Other questions:
  • A walkway is being installed around a rectangular playground. The playground is 30 feet by 12 feet, and the total area of the pl
    7·2 answers
  • What is the solution of the inequality c-8&gt;-1
    10·1 answer
  • What is. C(3a+b) and what does it equal to
    12·1 answer
  • In a race of 35 people, how many different ways can we have a 1st, 2nd and 3rd place finisher?
    7·1 answer
  • Find the area of the composite figure. Round to the nearest hundredth.
    5·1 answer
  • A culture started with 5,000 bacteria. After 4 hours, it grew to 6,000 bacteria. predict how many bacteria will be present after
    9·2 answers
  • Is there someone that is on here that will help me with my geometry because I'm not getting any of this, please?
    7·2 answers
  • ANSWER pls........................
    12·1 answer
  • 2. Mang Danny bought a cellphone worth Php 7500 and he's selling it for Php 9000. How much is the markup?
    10·1 answer
  • Which statement best describes points P and Q?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!