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Ivahew [28]
3 years ago
12

Mellie Grant started cleaning the swimming pool at the Country Club at 10:30 a.m. and completed her assignment at 3:15 p.m.. How

long did it take her?​
Mathematics
2 answers:
Studentka2010 [4]3 years ago
8 0
It took her 4 hours and 45 minutes exact
juin [17]3 years ago
6 0

Answer:

The answer should be 225 minutes

Step-by-step explanation:

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A new company is in the process of evaluating its customer service. The company offers two types of sales: (1) Internet sales an
iragen [17]

Answer:

H_A: P_{\text{Internet}}-P_{\text{Store}} > 0.10

Step-by-step explanation:

We are given the following in the question:

Let P_{\text{Internet}} be the proportion of the internet sales and P_{\text{Store}} be the proportion of the store sale.

Hypothesis:

We have to conduct a hypothesis to check that the Internet sales are more than 10 percent higher than store sales.

Thus, we can design the null and alternative hypothesis as:

H_{0}: P_{\text{Internet}}-P_{\text{Store}}\leq 0.10\\H_A: P_{\text{Internet}}-P_{\text{Store}} > 0.10

Alternate Hypothesis:

The alternate hypothesis states that the proportion of the internet sales is greater than the proportion of store sales by 10 percent.

3 0
4 years ago
Simplify this expression. If it is already simplified, then write it as it is.<br> 4t^2 + 10t
AleksAgata [21]

Answer:

Already simplified.

Step-by-step explanation:

The only way to simplify an expression is to combine like terms.  Like terms is where the variables are exactly the same.  t^2 is not the same as t.  Thus, cannot combine them, so the expression is already simplified,

4 0
3 years ago
At the ice cream parlor,sundaes cost $4.25 and waffle cones cost $3.75.You and your friends have $50 to spend.Your group buys 5
stich3 [128]

Answer:

You can buy 7 waffle cones.

Step-by-step explanation:

Let sundae = x

Let waffle cones = y

4.25x + 3.75y ≤ 50

4.25 (5) + 3.75y ≤ 50

21.25 + 3.75y ≤ 50

3.75y ≤ 28.75

y ≤ 7.666666666

* round to the nearest whole to get 7

6 0
3 years ago
Find the slope and y-intercept of the following line <br><br> -7x+7y=-17
leva [86]
To find these two lets convert this into slope-intercept form:

-7x + 7y = -17
7y = 7x -17
y = x - 17/7

So, the slope is 1 and the y-intercept is -17/7

Hope this helps!
3 0
4 years ago
6. There are 90 seats in the school auditorium. The school had a sold out show of their play last weekend, and made $315. The co
Olegator [25]

Answer:

90

Step-by-step explanation:

4 0
3 years ago
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