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
marissa [1.9K]
3 years ago
12

The cost of a plumbing repair is given by the equation y=45x+30, where x is the number of hours the repair takes and y is the to

tal cost in dollars.if a repair costs a total of $300 how manny hours did it take?
Select the correct answer below.

A.6
B.7
C. 7 1/3
D.10
Mathematics
1 answer:
arlik [135]3 years ago
6 0
First you subtract the 30 from 300 and than 270/45 and your answer will be A. 6
You might be interested in
State the zeros of the following. (x- 2) (x - 3) =0
gregori [183]

Answer:

x=2,3

Step-by-step explanation:

(x- 2) (x - 3) =0

Using the zero product property

x-2 =0                 x-3 =0

x-2+2=0+2          x-3+3 =0+3

x=2                        x+3

7 0
3 years ago
If x=3(y+w)-1 what id the value of w in terms of x and y ?
Sati [7]

Answer:

x=3(y+w)-1

x=3y+3w-1

x+1-3y=3w

w = (x+1-3y) / 3

7 0
3 years ago
You attend a karaoke night and hope to hear your favorite song. The karaoke song book has 900 different songs (your favorite son
Afina-wow [57]
20/900
I not sure though
7 0
3 years ago
What is the volume of this square pyramid?
tatuchka [14]

Answer: 1296 cm³

Step-by-step explanation:

Since, the volume of a square pyramid is,

V = \frac{a^2h}{3}

Where a = side of the square base,

h = height of the pyramid,

By the given diagram,

a = 18 cm,

h = 12 cm,

Hence, the volume of the given pyramid,

V = \frac{18^2\times 12}{3}

= \frac{324\times 12}{3}

=\frac{3888}{3}

=1296 cube cm.

⇒ First option is correct.

5 0
3 years ago
Simplify the expression by adding or subtracting the linear expressions. 7x + 9x + 8 + 4x + 5 *
Lady_Fox [76]

Answer:

A

Step-by-step explanation:

7x+9x+4x+8+5=20x+13

20+13.

Hope this helps :D

4 0
3 years ago
Other questions:
  • A number b added to 10 is no more than -2
    11·1 answer
  • The number of horse shoes needed for the horses. independent dependent
    7·1 answer
  • As a salesperson, you are paid $100 per week plus $3 per sale. This week you want your pay to be at least $160. Write an inequal
    15·1 answer
  • 2−4÷2+2 with the exponent of 3
    10·1 answer
  • Why was the United States Constitution created in 1787?
    6·2 answers
  • The area of one field is 16 acres, and the area of the second field is 1 1/4 times bigger. A barn of wheat on the first field ma
    13·1 answer
  • 13. The sum of 4 and three times a number is 19.
    5·2 answers
  • What degree of rotation about the origin will cause the triangle below to map onto itslef
    14·1 answer
  • Help me with this please. <br><br> x = ?<br><br> use socatoah
    7·2 answers
  • Maria flips a coin 20 times. The coin only lands on tails 9 times. According to theoretical
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!