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
dlinn [17]
3 years ago
7

Answer Please first = brainliest only if correct.

Mathematics
1 answer:
Kisachek [45]3 years ago
3 0

Answer:

3x + 2y = 315 -----(1)

2x + 4y = 450 -----(2)

from (1) 3x + 2y = 315

2y = 315-3x

y = 157.5 - 3/2x ---- (3)

substitute (3) into (2)

2x + 4y = 450

2x + 4(157.5 - 3/2x ) = 450

2x + 630 - 6x = 450

-4x = -180

x = 45 ---- (4)

substitute (4) into (3)

y = 157.5 - 3/2x

y = 157.5 - 3/2(45)

y = 90

a haircut,x = 45 minutes

dye hair,y = 90 minutes

You might be interested in
If n is a term of the sequence 2,5,8,11,..., which expression would give the value of n?
Wittaler [7]
The term of the sequence is eleven 11
5 0
3 years ago
Read 2 more answers
I NEED HELP CROWN FOR RIGHT ANSWER
natta225 [31]

Answer:

D. $81,728

Step-by-step explanation:

Let's first convert pounds to ounces.

4 pounds x (16 ounces / pound) = <u>64 ounces.</u> (Remember that when we're converting from a larger unit, pounds, to a smaller one, ounces, we'll have more ounces than pounds, so this answer makes sense!)

Let's now get the cost of the gold.

64 oz x ($1277 / oz) = <u>$81,728.</u> (Wow, that's a lot of gold!)

5 0
3 years ago
Which expression is equivalent to - (4-3)
LenaWriter [7]
This is equivalent to -1 ( 4 - 3 )
which simplified is -1
because 4-3 is 1 and 1 times -1 is -1

Hope this helps ;)
5 0
3 years ago
Read 2 more answers
Mike and Julie surveyed students to determine how many had a grade of A in math. They recorded their findings for each survey in
grin007 [14]

20/4 = 5

40/8 = 5

60/12 = 5

80/16 = 5


Answer is 5

6 0
2 years ago
Read 2 more answers
When data points group together in a cluster from the upper left-hand side of the xy axis to the lower right-hand side, what is
schepotkina [342]
Negative correlation

.........................
3 0
2 years ago
Other questions:
  • What shape had six faces
    14·2 answers
  • 27. The altitude BD to the base AC of isosceles ABC has a length of 12. If AC = 10,
    10·1 answer
  • Which is more 2/3 or 2/4
    10·1 answer
  • Please help I’ll give you guys brainiest. !!!!!
    10·2 answers
  • Does anybody know this what the answer to this question is please?
    14·1 answer
  • Solve the System of Inequalities
    15·1 answer
  • Study The Data Set. What is The Range? What Is The Mean? Simple Solutions math 6th grade The Data Set is 0,1,2,6,1,9,5,9
    12·1 answer
  • Need help with problem 5, Thank you!<br><br><br> Sorry for the glare
    6·1 answer
  • You have $5.88. You buy 8 items that cost $0.44 each How many items much money do you have left?​
    6·2 answers
  • Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal plac
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!