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3 years ago

Tax Rate Change: Suppose a certain tax rate goes from 6% to 18%. Which of the following statements is NOT true?

Mathematics

1 answer:

igor_vitrenko [27]3 years ago

4 0

Answer:

The c statement is not true.

Step-by-step explanation:

We need to check every statement to determine which one is false.

a. The old tax rate was 6% and the new one is 18%. The difference between the new and the old one will give us how much it's been increased. So 18-6=12, meaning the tax has increased 12%, so this statement is true.

b. If we multiply by 3 the old tax rate we get 6x3=18, which is the same as the new tax rate, so this statement is also true.

c. Increasing the tax rate 100% would mean multiplying by 2, since 100% is the same as the number, so adding that to the same number would double the amount. By the same logic, increasing it 200% would be the same as multiplying it by 3, and by 4 with a 300% increase. Since we already determined that the new tax was 3 times the old one, this statement is false, and the d. statement is true.

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What are the slope and the y-intercept of the linear function that is represented by the table?

mafiozo [28]

Answer:

slope is -2 and the y-intercept is 12

Step-by-step explanation:

a key thing to remember: x is always equal to 0 when finding the y-intercept.

so if you look at the table for where 0 is, you get the point (0,12) meaning the y-intercept is 12.

to find the slope use the equation: slope= change in y/change in x

you can use any two points to find this.

lets take the points of the x-intercept (6,0) and the y-intercept (0,12)

12-0/0-6

12/-6

-2 = slope

8 0

3 years ago

Anita is paid P25 for working for 5hours.how much would she be paid if she works for 7 hours

Tresset [83]

Answer:

35$

Step-by-step explanation:

Set up a proportion

5hr=25

7hr=x

Cross multiply

5x=175

divide both sides by 5

x=35$

4 0

3 years ago

The accompanying table shows the number of bacteria present in a certain culture over a 6 hour period, where x is the time, in h

madam [21]

The number of bacteria present after 15 hours is 18928

<h3>How to determine the exponential equation?</h3>

An exponential equation is represented as;

y = ab^x

Where

a = y, when x = 0

From the table, we have:

y = 1796 when x = 0

So, we have:

y = 1796b^x

Also, we have the point (1, 2097)

This gives

2097 = 1796b^1

Divide by 1796

b = 1.17

Substitute b = 1.17 in y = 1796b^x

y = 1796(1.17)^x

This means that the exponential equation is y = 1796(1.17)^x

After 15 hours, we have:

y = 1796(1.17)^15

Evaluate

y = 18928

Hence, the number of bacteria present after 15 hours is 18928

Read more about exponential equation at:

brainly.com/question/23729449

#SPJ1

7 0

1 year ago

In your biology class, your nal grade is based on several things: a lab score, scores on two major tests, and your score on the

Mariana [72]

Complete Question

In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 25% of your total grade, each major test is worth 22:5%, and the final exam is worth 30%. Compute the weighted average for the following scores: 92 on the lab, 81 on the first major test, 93 on the second major test, and 85 on the final exam. (Enter your answer to one decimal place)

Answer:

The weighted average is $W = 87.65$

Step-by-step explanation:

From the question we are told that

The worth of the lab score is 25% of total grade

The worth of each major test is 22.5% of total grade

The worth of final exam is 30% of total grade

The score on lab is 92

The score on first major test 81

The score on second major test 93

The score on final exam is 85

Generally the weighted score is mathematically represented as

$W = 0.25 * 92 + 0.225* 81 + 0.225* 93 +0.30 * 85$

=> $W = 0.25 * 92 + 0.225* 81 + 0.225* 93 +0.30 * 85$

=> $W = 87.65$

3 0

2 years ago

What's the answer???????

Klio2033 [76]

Your answer is d hope this helps

8 0

2 years ago