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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In grade 7, the ratio of boys to girls is 14:24. How many more percentage is girls to boys?

Answers

Hi my name is bob plz give brainpower

Judging on the basis of experience, a politician claims that 57% of voters in a certain area have voted for an independent candidate in past elections. Suppose you surveyed 25 randomly selected people in that area, and 18 of them reported having voted for an independent candidate. The null hypothesis is that the overall proportion of voters in the area that have voted for an independent candidate is 57%. What value of the test statistic should you report?

Answers

Answer: z= 1.51

Step-by-step explanation:

Test statistic for proportion is given by :-

$z=\frac{p-P}{\sqrt{(PQ)/(n)}}$

Where n is sample size ,p is the sample proportion , P Is the population proportion and Q =1 - P.

Given : P=57% = 0.57

Q= 1- P = 1-0.57=0.43

n = 25

$p=(18)/(25)=0.72$

Test statistic for proportion will be :-

$z=\frac{0.72-0.57}{\sqrt{(0.57*0.43)/(25)}}\approx1.51$

We should report the value of test statistic z= 1.51

2(3x + 1) + 4
Please simplify the statement

Answers

Answer:

6x+6

Step-by-step explanation:

2(3x+1)+4

6x+2+4

6x+6

If f (x)=x/2+8 what is f (x) when x=10

Answers

Answer: 13

Step-by-step explanation: Plug 10 in for x; 10/2=5; 5+8=13

A farm stand wants to sell fruit to local grocery stores in packages withbaskets of apples, worth $10 apiece, and baskets of peaches, worth $13
apiece. The owner wants each package to include 50 baskets total, and he
wants to sell each package for $566. How many baskets of apples and how
many baskets of peaches should he put in each package?
A. 10 apples, 13 peaches
B. 13 apples, 10 peaches
C. 28 apples, 22 peaches
D. 22 apples, 28 peaches