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Tcecarenko [31]

2 years ago

12

The virus is already 28% loaded. If it's loading at a rate of 12% every 10 minutes, how much time do we have before it is 100% l

oaded?

1 answer:

KIM [24]2 years ago

4 0

You will have 40 minutes before it it’s 100% loaded

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What is 3=7(4 - 2u)-6u

alisha [4.7K]

Answer:

u = 5/4

Step-by-step explanation:

to evaluate for the value of u we would simply open the bracket and then evaluate for the value of u by collecting the like terms together.

solution

3=7(4 - 2u)-6u

3 = 28- 14u - 6u

collect the like terms

3 + 14u + 6u = 28

20u = 28 - 3

20u = 25

divide both sides by the coefficient of u which is 20

20u/20 = 25/20

u = 5/4

5 0

2 years ago

Read 2 more answers

Find the 90 th derivative of the function ƒ(x)=cos(x)

Inessa [10]

F(x) = cos x
f'(x) = -sin x
f''(x) = -cos x
f'''(x) = sin x
f''''(x) = cos x

90/4 = 22 Remainder 2
Therefore, 90th derivative of f(x) = cos x is -cos x.

5 0

3 years ago

Could I get some help with this question please?

icang [17]

Opposite
additive inverse

5 0

2 years ago

Kevin, can clean a stadium in 5 hours working alone. Chris, can

LenaWriter [7]

Answer: It will about 1.88 hours or 1 hour 52.5 minutes to clean the stadium if they work together .

Step-by-step explanation:

Given : Time taken by Kevin to clean a stadium = 5 hours

Rate of work done by Kelvin = $\dfrac{1}{5}$

Time taken by Chris to clean a stadium = 3 hours

Rate of work done by Chris = $\dfrac{1}{3}$

Let t be the time taken by both of them to clean the stadium together.

According to the question , we have

Rate of work done together = Rate of work done by Kelvin+Rate of work done by Chris

$\dfrac{1}{t}=\dfrac{1}{5}+\dfrac{1}{3}\\\\ \Rightarrow\ \dfrac{1}{t}=\dfrac{3+5}{15}\\\\ \Rightarrow\ \dfrac{1}{t}=\dfrac{8}{15}\\\\\Rightarrow\ t=\dfrac{15}{8} =1.875$

$t=1+0.875$ hours

$t=1\text{ hour }+0.875(60)\text{ minutes}$ [∵ 1 hour = 60 minutes]

$t=1\text{ hour }+52.5\text{ minutes}= \text{1 hour 52.5 minutes}$

Hence, It will about 1.88 hours or 1 hour 52.5 minutes to clean the stadium if they work together .

5 0

2 years ago

A cafe offers senior citizens a 15% discount off its regular price of 8.95 for the dinner buffet. How much of a discounts doesn’

ser-zykov [4K]

Multiply the cost of the meal by 0.15 ( 15% as a decimal).

8.95 x 0.15 = 1.34

The amount of the discount would be $1.34

Extra:

If you need to find out how much a senior citizen pays, you would subtract the amount of the discount from the original price:

8.95 - 1.34 = $7.61

6 0

2 years ago