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ella [17]
3 years ago
13

A plumber charges $70 per hour $40 for the call. What does he charge for 4 hours of work Use x to represent the hours of work

Mathematics
1 answer:
marin [14]3 years ago
8 0
F(x)=70x+40
f(4)=280+40
f(4)=320
He will make $320 in 4 hours.
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Write an equation and solve: Twice a number, increased by 3 is 7.
brilliants [131]
The equation is 2x+3=7
2x +3=7
      -3  -3
2x=4
divide both sides by 2
x=2
the answer is 2
3 0
3 years ago
Last week, Mr. Thomas rode his bike 49 miles. This week, Mr. Thomas rode his bike 14 miles less than he did last week. Part A. M
soldi70 [24.7K]
Part A
49-14 = 35 
<span>35/7 = 5 </span>

Part B
5 miles each day

Part C
<span>49+35 = 84 </span>
<span>84+40 = 124, which is a good estimate and it is reasonable</span>
7 0
4 years ago
What is the simplest form of the expression (14.2a + 9.8b) – (13.1b – 0.2a) – (3.7a + 4.8b)?
makvit [3.9K]

The first; 10.7a-8.1b

5 0
4 years ago
Read 2 more answers
Please help me again ​
Sholpan [36]

Answer:

Gain in total is $8.5

loss is $3.75

Step-by-step explanation:

4 0
3 years ago
Which is the following points is NOT a solution to the inequality y &gt; - x + 3? —a. ( -2,6)b. (5,-1)c. (2,0)d. (0,3)
CaHeK987 [17]

Given -

y > - x + 3

To Find -

The points which is NOT a solution to the inequality

Step-by-Step Explanation -

We will put the value of each in inequality and then see if it satisfies the given condition or not.

a. ( -2,6)

So, x = -2 and y = 6 in y > - x + 3

= 6 > - (-2) + 3

= 6 > 5 (Correct Solution)

b. (5,-1)

So, x = 5 and y = -1 in y > - x + 3

= -1 > -5 + 3

= -1 > -2 (Correct Solution)

c. (2,0)

So, x = 2 and y = 0 in y > - x + 3

= 0 > -2 + 3

= 0 > 1 (Incorrect Solution)

d. (0,3)

So, x = 0 and y = 3 in y > - x + 3

= 3 > -0 + 3

= 3 > 3 (Incorrect Solution)

Final Answer -

The points which is NOT a solution to the inequality =

c. (2,0)

d. (0,3)

3 0
1 year ago
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