Kendra makes $8 per hour mowing lawns in the summer. Gas for the mowercosts $16 and will last all summer. How many hours must she mow to earn at
least $200?

Answers

Answer 1
Answer:

Answer:

27 hours

Step-by-step explanation:

So t is going to represent time. $8t is equivalent to how much she makes for t amount of time. Being she is already down $16 for the gas, we have to take that into consideration that she must earn that back. Set up:

$8t - $16 = $200

Add like terms to get:

$8t = $216

Now solve for t by dividing both sides by $8.

t = 27 hours


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Points are identified in pictures by​

Answers

Answer:

Graphs

Step-by-step explanation:

You are playing a video game. For each diamond you collect, you earn 110 points. You also earn 80 bonus points by completing the level in less than 2 minutes. You need to earn more than 1620 points to continue on to the next level. Write and solve an inequality that represents the numbers d of diamonds you must collect in less than 2 minutes to advance to the next level.

Answers

Answer:

110d=1620

Step-by-step explanation:

110d=1620

divide by 110 on each side

d=14.2727272727

so about 14 more diamonds need to be collected to move onto the next level

Factor the following expression: 7x + 28x2 + 21x​

Answers

Answer:2

8

2

+

2

8

Step-by-step explanation:

Answer:

84x

Step-by-step explanation:

If you have any questions feel free to ask in the comments.

9 + 1.34 + .5 (3.50 +1.74) How would you simplify the expression? Explain your steps.

Answers

1. Using PEMDAS, I would first solve the equation inside the parenthesis
(3.50+1.74)= 5.24
Now the equation is:
9+1.34+.5(5.24)
2. Multiply .5(5.24)
9+1.34+2.62=
12.96

Find the distance between the point (-18,-19) and the point (-18,16).

Answers

ANSWER

EXPLANATION

To find the distance between the two points, we will use the formula:

\begin{gathered} D=\text{ }\sqrt[]{(x_2-x_1)^2+(y_2-y_1)^2} \n \text{where (x}_1,y_1)\text{ = (-18, -19)} \n (x_2,y_2)\text{ = (-18, 16)} \end{gathered}

So, we have that:

undefined

In a University of Wisconsin (UW) study about alcohol abuse among students, 100 of the 40,858 members of the student body in Madison were sampled and asked to complete a questionnaire. One question asked was, "On how many days in the past week did you consume at least one alcoholic drink?" a. Identify the population and the sample. b. For the 40,858 students at UW, one characteristic of interest was the percentage who would respond "zero" to this question. For the 100 students sampled, suppose 29% gave this response. Does this mean that 29% of the entire population of UW students would make this response? Explain.

Answers

Answer:

a) The population is 40,858 students and the sample is 100.

b) No

Step-by-step explanation:

a) The population would be the 40,858 members of the student body. Since we are only applying the questionnaire to 100 students, the sample would be 100.

b) 29% of the students answered "zero" to the question on how many days in the past week they consumed at least one alcoholic drink. This means that 29 out of 100 students gave this answer. However, this doesn't mean that 29% of the entire population of UW would give this response. Why is that? Because our sample is very small so it might not be representative of the whole population. Equally, the results from such a sample cannot be exactly the same results we would get from an entire population.