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Fofino [41]
3 years ago
15

Could anyone help with this sheet? please!

Mathematics
2 answers:
fredd [130]3 years ago
8 0

Answer:

1) 5 are absent and 20 are present

2) $42.50

3) $155.29

4) $535.50

5) $107.52 per year and $8.96 per month

Step-by-step explanation:

LuckyWell [14K]3 years ago
4 0

Answer:

Step-by-step explanation:

Q1:

25*20/100=5

25-5=20

answer: 5 absent and 20 present

Q2:

50*15/100=7.5

50-7.5=42.5

answer: 42.5

Q3:

146.50*6/100=8.79

146.50-8.79=137.71

answer: 137.71

Q4:

30%-5%=25%

150*25/100=37.5

150-37.5=112.5

answer: 112.5

Q5:

96*12/100=11.52

96+11.52=107.52

answer for the first part: 107.52 per year

107.52/12=8.96

answer for the last part: 8.96 per month

-----------------------------------------------------------------------

I hope it was simple :)

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5 0
4 years ago
Ocean sunfishes are well-known for rapidly gaining a lot of weight on a diet based on jellyfish. The relationship between the el
ki77a [65]

Answer:

1.4071

Step-by-step explanation:

The relationship between the elapsed time, t in days, since an ocean sunfish is born, and its mass is given by:

M_{day}(t)=3.5(1.05)^t

This function represents an exponential growth increasing as the number of days increases since (3.5 > 1), it means that at day 0 , the mass of the sunfish is 3.5 milligrams and every day, its mass increases by a factor of 1.05.

Since the mass of the sunfish increases by 1.05^t, therefore the mass of the sunfish increases every one week (that is 7 days) by a factor of 1.05^{7} = 1.4071

8 0
3 years ago
James estimated the total cost of groceries to be $50. The actual cost of the groceries is $65. What is the percent error? Round
Yuki888 [10]

The percentage error is 23%

Explanation:

The estimated total cost of the groceries = $50

The actual cost of the groceries = $65

To find the error value, we need to subtract the value of actual cost and total cost of the groceries.

Thus,

error value = actual cost - total cost

error value = 65-50=15

Hence, error value = $15

The formula to determine the percent error is given by

Percent error $=\left(\frac{\text { error value}}{\text {actual value}}\right) \times 100$

Substituting the values in the formula, we get,

$\begin{aligned} \text { Percent error } &=\left(\frac{15}{65}\right) \times 100 \\ &=0.231 \times 100 \\ &=23.1 \end{aligned}$

Rounding off the value, we have, 23%

Thus, the percentage error is 23%

6 0
4 years ago
What is the quotient of 6 and 2?<br> ?<br> -12.<br> 1<br> 12.<br> 0<br><br> 12.<br> 0 12.
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7 0
4 years ago
Suppose that the annual rainfall in Ferndale, California, is known to be normally distributed, with a mean of 35.5 inches and a
erastovalidia [21]

The average annual rainfall will be more than 40.6 inches in about 2.1 percent of the years.

<h3>What is the average annual rainfall?</h3>

Generally, the equation for the probability is mathematically given as

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Therefore

P( X > x) = 0.021

P( X < x ) = 1 - 0.021\\\\\p( X < x) = 0.979

P( Z < x - \mu / \sigma) = 0.979

The z score for the probability of 0.979 is 2.034, according to the table of z values.

x - \mu / \sigma \\\\x= 2.034

In the given equation, replace the values of mu and sigma with their respective values, and then solve for x.

x - 35.5 / 2.5 \\x= 2.034

In conclusion, The average annual rainfall will be more than 40.6 inches in about 2.1 percent of the years.

Read more about average

brainly.com/question/24057012

#SPJ1

7 0
2 years ago
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