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
maks197457 [2]
3 years ago
9

Paul's plumbing charges a flat fee of $90 plus $40/h for plumbing job. Perfect pipes charges a flat fee of $60 plus $55/h for a

plumbing job. A) Write the expressions to represent the total costs of a plumbing job each for company. Let "h" represent the time, in hours, of a plumbing job. B) Is the cost of a 3- hour-long plumbing job the same at both companies? Write and use an equation to find out.
Mathematics
1 answer:
____ [38]3 years ago
3 0
For part A:
Paul's plumbing
40h + 90

perfect pipes:
55h + 60

Part B:
we will substitute h = 3 and find out
paul's:
40h + 90
when h = 3
210

for pipes:
55h+60
when h = 3
225

no not the same


You might be interested in
Wright an inequality for the graph
Lerok [7]

Answer:

Y >= ABS(x-5) + 1

Step-by-step explanation:

Any graph that forms a "V" involves absolute value. So what equation would give the vertex y=1 at x=5, ABS(X-5) + 1.

5 0
3 years ago
Another fair dice is rolled 300 times. How many times would you expect it to land with a multiple of three on top? I need help t
ira [324]

Answer:

100 times

Step-by-step explanation:

multiples of 3 on a number cube are 3 and 6

probability of rolling a '3' or '6' is 1/6 + 1/6 = 2/6 or 1/3

1/3 x 300 = 100

7 0
3 years ago
A girl ran to the store at a speed of 6mph, and walked back at 4mp. If her round trip took 15 minutes, how far away is the store
MariettaO [177]

Answer:

0.6 miles

Step-by-step explanation:

Let's say the store is x miles away, she walks to the store in a hours, and she walks back in b hours.

First, her total time = time walked there + time walked back = a + b = 15 minutes = 1/4 of an hour = 0.25 hours

a + b = 0.25 (because a and b are in hours)

distance = speed * time

x = 6 miles/hour * a hours = 6a miles

x = 4 miles/hour * b hours = 4b miles

If we can find a or b, we can find x.

4b = x = 6a

4b = 6a

a + b = 0.25

We now have two equations with two variables. Using substitution, we can solve for one of them

a + b = 0.25

subtract a from both sides to find b

0.25 - a = b

plug that into the other equation, 4b = 6a

4(0.25-a) = 6a

1 - 4a = 6a

add 4a to both sides to isolate a and its coefficient

1 = 10a

divide both sides by 10 to solve for s

a = 1/10 of an hour = 0.1 of an hour = 60 minutes / 10 = 6 minutes

6a = x

6(0.1) = x

0.6 = x

the store is 0.6 miles away

6 0
2 years ago
Five friends want to share 1,000
lianna [129]

Answer:200

Step-by-step explanation:

7 0
2 years ago
Is –0.45 – 0.6 + 0.75p equal to –3(0.15 – 0.2 + 0.25p)
polet [3.4K]

Answer:

no, the have a negative difference

3 0
3 years ago
Other questions:
  • WHOEVER IS RIGHT GETS BRAINLIST
    14·1 answer
  • Which transformation will map an isosceles trapezoid onto itself? rotation by 180° about its center, reflection across a diagona
    7·2 answers
  • Slope intercept form for (18,-5),(18,20)
    5·1 answer
  • A random sample of 41 cars in the drive-thru of a popular fast food restaurant revealed an average bill of $19.55 per car. The p
    10·1 answer
  • PLS ANSWER WILL GIVE 10 PTS
    12·2 answers
  • Find the length of the missing side. Round to the nearest hundredth.
    13·1 answer
  • The sides of squares can be used to form triangles. The areas of the squares that form right triangles have a special relationsh
    14·1 answer
  • Y = 2x - 4 y = x + 1<br><br>Solve using substitution. ​
    8·2 answers
  • G) Marcie's sugar cookie
    14·2 answers
  • Coficient of x^2 in -4x^2
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!