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Hunter-Best [27]

3 years ago

9

Please help me I will give you extra points and the brain thing. (image below) 1/5

1 answer:

aalyn [17]3 years ago

5 0

Answer:

Step-by-step explanation:

The answer is A.

Direct variation means that as x gets larger, so does y. How much bigger is determined not only be values of x but also values of k. K is fixed however.

So suppose k =5

then if x = 4

y = 5*4 = 20

if x = 8 then

y = 5 * 8 = 40 just twice as large, but notice that k does not change.

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Please help me!! how do i solve this?

Lostsunrise [7]

Answer:

21

Step-by-step explanation:

Left-side numbers are proportional to right-side numbers:

?/14 = 12/8

? = 14(12/8) = 21

The missing length is 21.

8 0

3 years ago

An empty cup in the shape of a cylinder is being filled with water . The cup is filled at constant rate . The table below shows

KatRina [158]

<h2>Explanation:</h2><h2></h2>

Hello! Remember you have to write complete questions in order to get good and exact answers. I'll help you to understand this problem, but I have to assume some things.

We know that the empty cup in the shape of a cylinder is being filled with water. Suppose the volume of this cylinder is:

$V=450cm^3$

Suppose that the cup is filled at a constant rate of $s=50cm^3/s$ , so in 7 seconds the cup is filled the following amount:

$V'=50\times 7=350cm^3$

So this represents the following percentage:

$\frac{V'}{V}\times100=\frac{350}{450}\times 100=77.78\%$

Finally, after 7 seconds the cup is 77.78% filled

3 0

3 years ago

Read 2 more answers

A person drove from 8 am Tuesday to 5 pm Wednesday. Total drive 396 miles. He have lunch for 30 minutes on Tuesday and sleep ove

777dan777 [17]

Answer: 18mph

Step-by-step explanation:

Given data

total distance driven = 396 miles

time driven = 8 am Tuesday to 5 pm Wednesday

total time driven in hours = 33 hours

lunch break time = 30 min Tuesday + 30 min Wednesday

= 60 min

= 1 hour

sleep time = 7 pm Tuesday to 5 am Wednesday

= 10 hours

solution:

To find the average speed,

we are given total time driven = 33hrs.

lunch + rest time = 10hrs + 1hr

= 11hrs

total time travelled =drive time - rest + lunch time

= 33 - 11

= 22hrs

therefore;

average speed = distance / time traveled.

average speed = 396 / 22

average speed = 18 mph

6 0

2 years ago

Simplify. Can you explain it also?

Doss [256]

Answer:

The answer is

<h2> $\frac{3c}{4e}$ </h2>

Step-by-step explanation:

<h3> $\frac{9 {c}^{3}d {e}^{2} }{12 {c}^{2} d {e}^{3} }$ </h3>

To solve the fraction reduce the fraction with d

That's we have

<h2> $\frac{9 {c}^{3} {e}^{2} }{12 {c}^{2} {e}^{3} }$ </h2>

Next simplify the expression using the rules of indices to simplify the letters in the fraction

<u>For c </u>

Since they are dividing we subtract the exponents

We have

<h2> ${c}^{3} \div {c}^{2} = {c}^{3 - 2} = c^{1} = c$ </h2>

<u>For </u><u>e</u>

<h2> $e^{2} \div {e}^{3} = e^{2 - 3} = {e}^{ - 1} = \frac{1}{e}$ </h2>

Substituting them into the expression we have

<h2> $\frac{9c}{12e}$ </h2>

Reduce the fraction by 3

We have the final answer as

<h2> $\frac{3c}{4e}$ </h2>

Hope this helps you

8 0

3 years ago

Read the screenshot, please.

hram777 [196]

Answer:

You need <em>at least</em> 101 cans of food in order to meet or surpass the goal.

Step-by-step explanation:

a.

135+89=224

224+c>=325

b.

224-224+x>=325-224

x>=101

You need <em>at least</em> 101 cans of food in order to meet or surpass the goal.

5 0

1 year ago