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4 years ago

To decrease an amount by 70%, what single multiplier would you use? How do i work this out?

1 answer:

5 0

To decrease an amount, you would multiply it by 0.30. you multiply it by 0.30 because this gives you 30%; therefore, it has been decreased by 70%. To decrease an amount, you always times it by 0. and then whatever the remainder is. If you were decreasing 'y' by 65%, you would work it out by doing y * 0.35

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Henry counted 350 Lockers in his school Hailey counted 403 Lockers in her school how does the 3in 350 compared to the three in 4

stiv31 [10]

The 3 in 350 represents 300

because 350=300+50+0, that is: 3 one hundreds +5 tens +0 ones

The 3 in 403, represents 3 because 403 = 400+3 that is 4 one hundreds, 0 tens and 3 ones.

Thus the 3 in the number 350 and the 3 in the number 403 are not the same.

The 3 in the number 350 is one hundred time the 3 in the number 403.

Answer: The 3 in the number 350 is one hundred time the 3 in the number 403.

3 0

3 years ago

Read 2 more answers

Assume that the GMAT scores across the U.S. follow a bell shaped distribution (symmetric and unimodal) with mean 549 and standar

blondinia [14]

Answer:

The GMAT score corresponding to the 16th percentile is 473.

Step-by-step explanation:

Empirical Rule.

The Empirical Rule states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.

Approximately 95% of the measures are within 2 standard deviations of the mean.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

68% of the measures within 1 standard deviation of the mean.

This means that they are between the 50 - (68/2) = 50 - 34 = 16th percentile(one standard deviation below the mean) and the 50 + (68/2) = 50 + 34 = 84th percentile(one standard deviation above the mean).

In this question:

Mean of 549, standard deviation of 76.

16th percentile:

One standard deviation below the mean, so 549 - 76 = 473.

The GMAT score corresponding to the 16th percentile is 473.

5 0

3 years ago

Can i have help with this please

marusya05 [52]

Answer:

a) Negative Correlation

b) Diagram C

c) Correlation c because it is a positive correlation

Hope this helps :)

Step-by-step explanation:

8 0

3 years ago

294 is equal to the quotient of f and 373 Write the sentence as an equation

Bond [772]

Answer:

f/373 = 294

Step-by-step explanation:

6 0

4 years ago

Is the relationship shown by the data linear? If so, model the data with an equation.

Harrizon [31]

The correct answer is:

The relationship is linear, and the equation is
y-5 = 2(x+7).

Explanation:

To determine if the relationship is linear, we find the slope between each pair of points. Slope is given by the formula:

$m=\frac{y_2-y_1}{x_2-x_1}$

The slope between the first two points is given by:

$m=\frac{9-5}{-5--7}=\frac{9-5}{-5+7}=\frac{4}{2}=2$

The slope between the second pair of points is given by:

$m=\frac{13-9}{-3--5}=\frac{13-9}{-3+5}=\frac{4}{2}=2$

The slope between the third pair of points is given by:

$m=\frac{17-13}{-1--3}=\frac{17-13}{-1+3}=\frac{4}{2}=2$

Since the slope is the same throughout the data, the relationship is linear and the slope is 2.

To write the equation, we use point-slope form, which is:

y-y₁ = m(x-x₁)

Using the first point, we have:

y-5 = 2(x--7)
y-5 = 2(x+7)

8 0

3 years ago

Read 2 more answers