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Elodia [21]
3 years ago
9

If y varies directly as x, find the unknown value in the problem below:

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
3 0
12/-30=8x
cross multiply
12x=-240
x=-20
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Otis plans to make 3 batches of sidewalk chalk How much plaster of paris does he need
den301095 [7]

Answer:

4\frac{1}{2} cups plaster of paris.

Step-by-step explanation:

Given:

for one batch of sidewalk chalk = 1\frac{1}{2} cup plaster of paris.

Number of bathes = 3

We need to find quantity of plaster of paris.

Solution:

For making 1 batch of sidewalk chalk = 1\frac{1}{2} cup plaster of paris.

For making 3 batches of sidewalk chalk = 3\times 1\frac{1}{2} cup plaster of paris.

= 3\times \frac{2\times 1+1}{2}

= 3\times \frac{2+1}{2}

= 3\times \frac{3}{2}

= \frac{3\times 3}{2}

= \frac{9}{2}

=4\frac{1}{2}

Therefore, he needed 4\frac{1}{2} cups plaster of paris.

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4 years ago
What is 8.016 as a fraction in simplest form
Papessa [141]
816/100

404/25

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3 0
3 years ago
¿Cómo influye el fenómeno de capilaridad en la vida de las plantas?
Arlecino [84]

Answer:

Plants use capillary action to bring water up the roots and stems to the rest of the plant. Therefore, if the plant could not do this the plant would die.

Step-by-step explanation:

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3 years ago
List three ways in which random numbers may be generated for use in a simulation.
balu736 [363]
Random numbers for a simulation might come from
1) a table of random numbers

2) a computer random number generator, such as ones available in many spreadsheet programs

3) digitizing the noise of the Universe. Such random numbers are available on some web sites.
7 0
3 years ago
adam hikes from bridgetown to lakeville. Gina starts at the same time, and hikes from Lakeville to Bridgetown on the same road.
IgorC [24]

Answer:

45

Step-by-step explanation:

6 0
3 years ago
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