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victus00 [196]
4 years ago
7

An electric motor pumps water into a pool at a rate of 500 liters per hour. After a tune up, its rate increases by x liters per

hour. If the motor now takes 3 hours to pump 1800 liters, in which equation does x represent the increase in speed after the tune up?
Mathematics
1 answer:
Alex73 [517]4 years ago
4 0

Answer: 3(500+x)=1800

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Sarah ran 26 km in 3 hours. How far could Sarah run in 5 hours.
Digiron [165]

Answer:

43.33 km

Step-by-step explanation:

<u>Step 1:  Find the amount of km Sarah can run in 1 hour</u>

26/3

<u>Step 2:  Find the amount of km Sarah ran in 5 hours</u>

26/3 * 5

130/3

43.33

Answer:  43.33 km

8 0
3 years ago
Ragan makes beaded jewelry. The graph below shows the number of beads on varying cord lengths.
MakcuM [25]

Answer:

Option C) 34 inches

Step-by-step explanation:

We are given the following in the question:

The graph shows the number of beads on varying cord lengths.

The y-axis represents the number of beads and x-axis represents the cord length in inches.

The graph represents the equation:

y = 2.52x + 1.61

where y is the number of beads and x is the cord length.

We have to find the cord length of a necklace consisting of 88 beads.

Thus, we are given y = 88.

Putting this value in the equation, we get,

y = 2.52x + 1.61\\88 = 2.52x + 1.61\\2.52x = 88 - 1.61\\2.52x = 86.39\\\\x = \displaystyle\frac{86.39}{2.52} = 34.28 \approx 34

Thus, the cord length of necklace with 88 beads is approximatwly 34 inches.

8 0
3 years ago
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Why is it good to play cards in a graveyard? ... help me its for math but i accidentally put bio
Nezavi [6.7K]
You can always dig up another player
7 0
3 years ago
(a) the probability that a vampire bat would pick A (b) the probability that a vampire bat would pick C (c) the probability that
grin007 [14]

Answer:

See Explanation

Step-by-step explanation:

See attachment for complete question.

From the attachment, we have that:

A = 71

C = 121

T = 66

First, we calculate the total

Total = A + C + T

Total = 71 + 121 + 66

Total = 258

Solving (a): Probability of A

This is calculated using:

Probability = \frac{A}{Total}

Probability = \frac{71}{258}

Probability = 0.275

Solving (b): Probability of C

This is calculated using:

Probability = \frac{C}{Total}

Probability = \frac{121}{258}

Probability = 0.469

Solving (b): Probability of T

This is calculated using:

Probability = \frac{T}{Total}

Probability = \frac{66}{258}

Probability = 0.256

3 0
3 years ago
The rectangle shown has a perimeter of 54 cm and the given area. Its length is 3 more than 3 times its width. Write and solve a
algol13

Answer:

Step-by-step explanation:

the perimeter P=2(L+W)=54

P=2L+2W=54 OR L+W=27

we know that L=3W+3

P=3W+W=27-3

4W=24

W=6 CM

L=21CM

5 0
3 years ago
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