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k0ka [10]
3 years ago
7

A swimming pool is open for 7 1/2 hours a day. The pool kepps one lifeguard at a time and each lifeguard shift is 1 1/2 hous lon

g. How many shifts are ther per day?
Mathematics
1 answer:
vredina [299]3 years ago
5 0
(7 1/2)/(1 1/2)=5 
so there will be 5 shifts per hour.
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8. Solve the following proportion (1 point)
Arturiano [62]

Answer:

97.5

Step-by-step explanation:

Cross multiply

2 * x = 2x

15 * 13 = 195

2x = 195

2x/2 = 195/2

x = 97.5

[RevyBreeze]

6 0
2 years ago
Read 2 more answers
Can someone please help me with this question?
liq [111]
To get the solution we are looking for we need to point out what we know.
1. We assume that 55 is 100% because its the output value of the task.
2. We assume that the x is the value we are looking for. 
3. If 100% = 55 so we can write it down as 100%=55 
4. We know that x% = 44 of the output value so we can write it as x%=44.
5. Now we have two simple equations: 1) 100%=55 2) x%=44 where left sides of both of them have the same units and both right sides have the same units so we can do something like that 100%/x%=55/44.
6. Now we just have to solve the simple equation and we will get the answer.
7. Solution for 44 is what percent of 55 100%/x%=55/44 (100/x)*x=(55/44)*x we multiply both sides of the equation by x 100= 1.25*x we divide both sides of the equation by (1.25) to get x 100/1.25=x 80=x now we have: 44 is 80% of 55! 

Quick answer = 44 is 80% of 55
Hope this helps! ;D
3 0
3 years ago
What is the answer to this question?
timurjin [86]

Answer: Option 1

Step-by-step explanation:

See attached image

3 0
2 years ago
Write and solve the sentence as an inequality.<br> A number minus 3 is less than -5.
Lorico [155]

Answer:

x - 3 < -5 is the inequality x < -2 is the solution

Step-by-step explanation:

x - 3 < -5

add 3

x < -2

5 0
3 years ago
Cory earns $20 for every lawn he mows and $9 for every hedge he trims. He uses the expression 20x + 9y to keep track of his earn
34kurt
<h2>a. 20 & 9 are the coefficients and x & y are the variables of the expression.</h2><h2>b. There are 2 terms in the expression they are 20x & 9y the reason why is  because the two terms are separated by addition</h2><h2>c. The term that shows the total of every hedge that was trimmed is 9y </h2><h2 />
3 0
3 years ago
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