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ra1l [238]
3 years ago
12

A swimming pool is open for 10 ½ hours per day and the lifeguards do shifts of 1 ¾ hours. How many shifts are there per day? Mak

e sure to show the equation you used to solve this problem.
Mathematics
1 answer:
Darya [45]3 years ago
8 0
9 shifts per day . I hope I helped and I’m not too late
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The number of skiers, k, that visited a mountain one day was
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Answer:

k = 11b - 8 (easiest to understand)

extra:

k = -8 + 11b

or

11b = -8 - k

etc. ( anything mixing up the components of the equation ).

3 0
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In the scale drawing, what will the length of the west side of the backyard?
Shtirlitz [24]

The diagram shows a lawn with the north side measuring 50 units and the west side measuring 28 units. The deck is scaled down by a factor of 1/5.

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1 year ago
you are taking a test worth 130 points. There are a total of 50 five-point and two-point questions. How many five-point question
REY [17]

Answer:

10 five-point questions and 40 two-point questions

Step-by-step explanation:

Let x represent the total number of five-point questions and y represent the total number of two-point questions.

Equation 1:     5x+2y=130

Equation 2:     x+y=50

Multiplying Equation 2 by 2:     2x+2y=100     (Equation 3)

(Equation 1) - (Equation 3):     3x=30

                                                  x=10

Substituting x=10 into x+y=50:     10+y=50

                                                            y=40

Therefore, there are 10 five-point questions and 40 two-point questions.


<h2><u>Check</u></h2>

Substituting x=10 and y=40 into Equation 1:

LHS=5x+2y=5(10)+2(40)=50+80=130

RHS=130

LHS=RHS

Substituting x=10 and y=40 into Equation 2:

LHS=x+y=10+40=50

RHS=50

LHS=RHS

Since in both cases the left-hand side is equal to the right-hand side, the answer is correct.

(LHS: left-hand side, RHS: right-hand side)

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Answer:

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Meredith bought 4 T-shirts and 2 pairs of pants. If x is the cost of one T-shirt and y is the cost of one pair of pants, she'll
borishaifa [10]

Answer:

2X+4X=Y just switch it. Technically its still the same problem

Step-by-step explanation:

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