Furnace repairs Rj's plumbing charges $55 plus $40 per hour for emergency service. Gary remembers being billed over $150 for an emergency call. How long was Rj there?Use an inequality

Answers

Answer 1

Answer: You set it up as a y=mx+b problem 150=55x+40 then you subtract 40 from 150 making 110=55x so x=2

Related Questions

Write the four equivalent fraction of 9/13
A study was conducted to estimate the mean amount spent on Christmas gifts for a typical family having two children. A sample of size of 101 was taken and the mean amount spent was $225 with astandard deviation equal to $50. Find a 95% confidence interval for the mean for all such families. Round to the nearest whole dollar.The confidence interval is from(Do not enter dollar signs.)
Find the total surface area of this cubiod
From the ground, a hot-air balloon went up at a speed of 375 feet per minute for 5 minutes. It then went down at a speed of 225 feet per minute for 6 minutes. How far is the hot-air balloon above the ground?150 feet525 feet1,125 feet1,875 feet
victor purchases 3 movie tickets for18.75$ at the movie hut which theater sells tickets for the same price per ticket

This is a two-part question: A 12-pack of bottled mineral water sells for $3.85. For the following,state whether to use multiplication or division for the specified amount:
a) The cost of one bottle of water:
b) The cost of four 12-packs of water:

Answers

Answer:

The cost of one water bottle of water would be division, The cost of four 12-packs of water is multiplication.

Step-by-step explanation:

A college professor states that this year's entering students appear to be smarter than entering students from previous years. The college's records indicate that the mean IQ for entering students from earlier years. is 110.3. Suppose we want to sample a smaller number of this year's entering students and carry out a hypothesis test to see if the professor statement can be supported. State the null and alternative hypothesis.

Answers

Answer:

$H_(0)$ : μ = 110.3

$H_(a)$ : μ > 110.3

Step-by-step explanation:

Let μ be the mean IQ of this year's entering students.

Then null and alternative hypotheses are:

$H_(0)$ : μ = 110.3 (this year's students mean IQ is at most the mean IQ of the entering students from previous years)

$H_(a)$ : μ > 110.3 (this year's students mean IQ is higher than the mean IQ of the entering students from previous years)

Suppose the labor force is 189 million of a possible 244 million working-age adults. The total number of unemployed is 15 million. Whatis the standard unemployment rate?

Answers

Answer:

The standard unemployment rate is of 0.0794 = 7.94%.

Step-by-step explanation:

The standard unemployment rate, as a proportion, is the number of unemployed people divided by the size of the labor force.

In this question:

Labor force: 189 million

Number of unemployed people: 15 million

What is the standard unemployment rate?

15/189 = 0.0794

The standard unemployment rate is of 0.0794 = 7.94%.

Consider the set S of primes less than 15. List the set S . (Input this as a list with no spaces, use commas.) How many subsets does the set have

Answers

9514 1404 393

Answer:

S = {2, 3, 5, 7, 11, 13}

2^6 = 64 subsets

Step-by-step explanation:

The list of primes less than 15 is ...

S = {2, 3, 5, 7, 11, 13}

A set with n unique elements has 2^n unique subsets, including the empty set and the full set. This set of 6 elements has 2^6 = 64 subsets.

In? gambling, the chances of winning are often written in terms of odds rather than probabilities. The odds of winning is the ratio of the number of successful outcomes to the number of unsuccessful outcomes. The odds of losing is the ratio of the number of unsuccessful outcomes to the number of successful outcomes. For? example, if the number of successful outcomes is 2 and the number of unsuccessful outcomes is? 3, the odds of winning are 2:3(Note; if the odds of winning are 2/3, the propability of sucess is2/5)The odds of event occuring are 1:6. Find (a) the propability that the event will occur,(b) propability that the event will not occur.

(a)The propability that event will occur is....(TYPE AN INTEGER OR DECIMAL ROUNDED TO THE NEAREST THOUSANDTH AS NEEDED.)

(b)The propability thet the event will not occur is...(TYPE AN INTEGER OR DECIMAL ROUNDED TO THE NEAREST THOUSANDTH AS NEEDED)

Answers

Answer:

A) The probability that the event will occur $=(1)/(7)$

B)The probability that the event will not occur = $(6)/(7)$

Step-by-step explanation:

We are given that The odds of event occurring are 1:6.

So, Number of successful events = 1

Number of unsuccessful events = 6

So, Total events = 6+1=7

a)the probability that the event will occur= $\frac{\text{Favorable event}}{\text{Total event}}$

The probability that the event will occur $=(1)/(7)$

b)The probability that the event will not occur = $\frac{\text{Favorable event}}{\text{Total event}}$

The probability that the event will not occur = $(6)/(7)$

You ran 2 miles on Monday,2 miles on Tuesday, 3 miles on Wednesday ,2 miles on Thursday and 4 miles on Friday how many miles did you run during the week

Answers

Answer:

13 miles

Step-by-step explanation:

Add all of the number of miles you ran from each day to get your total mileage.

2+2+3+2+4

Other Questions

Question 9 of 10Which inequality is shown in this graph?

Paired t‐Test for Mean Comparison with Dependent Samples To study the effects of an advertising campaign at a supply chain, several stores are randomly selected with the following observed before‐ and after‐advertising monthly sales revenues: Store number 1 2 3 4 5 Old sales revenue (mil. $) 5.2 6.5 7.2 5.7 7.6New sales revenue (mil. $) 6.4 7.8 6.8 6.5 8.2 Let μ₁ and μ₂ be the means of old and new sales revenues, both in millions of dollars per month. (a) At α = 0.05, test H0: μ2 ≤ μ1 versus H1: μ2 > μ1. Sketch the test. Interpret your result. (b)Sketch and find the p‐value of the test. Would you reject H0 if α = 0.01?

3. Error Analysis Isabel says that the equation x - 2 = -(x - 2) has nosolution because a number can never be equal to its opposite. Explain theerror Isabel made

A waffle recipe uses 3 cups of mix for 4 waffles. How much mix would you need to make 12 waffles