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Ket [755]
3 years ago
5

What part of $40.00 is $15.00​

Mathematics
1 answer:
Rzqust [24]3 years ago
3 0

_______ * 40 = 15.

_______ = 15/40 //Divide both side by 40.

15/40 = 3/8 //Reduced by 5.

Answer: 3/8

Check: 3/8 * 40

120/8 = 15

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Two lines intersect to form a linear pair with equal measures. One angle has the measure 6x° and the other angle has the measure
Ronch [10]

Answer:

The answer to your question is: x = 15 and y = 17

Step-by-step explanation:

∠A = 6x

∠B = 9y - 63

they are linear pair, their addition gives 180°

but it also mention that linear pair with equal measure, so each angle measures 90°

                        6x = 90

                        x = 90/6

                        x = 15

                        9y - 63 = 90

                        9y = 90 + 63

                        9y = 153

                        y = 153/9

                        y = 17

7 0
3 years ago
two high school students took equivalent language tests, one in German and one in French. The student taking the German test, fo
dedylja [7]

Answer:

The student who did the German test scored 2 standard deviations above the mean and the student who did the French test scored 1.6 standard deviations above the mean. Relative to their classmates, the student who did the German test scored better due to the higher z-score.

Step-by-step explanation:

Z-score

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

German test

Mean was 66 and the standard deviation was 8, scored an 82.

So

Z = \frac{X - \mu}{\sigma}

Z = \frac{82 - 66}{8}

Z = 2

French test:

Mean was 27 and the standard deviation was 5, scored a 35.

So

Z = \frac{X - \mu}{\sigma}

Z = \frac{35 - 27}{5}

Z = 1.6

The student who did the German test scored 2 standard deviations above the mean and the student who did the French test scored 1.6 standard deviations above the mean. Relative to their classmates, the student who did the German test scored better due to the higher z-score.

5 0
3 years ago
Evaluate the formula t=2n when n= 3.14, L=4, and g=44
dalvyx [7]
T = 2n, n = 3.14
t = 2(3.14)
t = 6.28
5 0
3 years ago
68. Find the volume of this square-based
Vesna [10]

Answer:

270 m^2

Step-by-step explanation:

1. Write down your formula.  It is V= 1/3 Bh

2. Plug in your numbers.  Your new formula is V= 1/3 (81)(10)

3. Simplify the expression to get 270.

7 0
3 years ago
What is the area of the triangle shown
Sati [7]

Answer:

The answer is 40 sq. units

That is: 1/2×b×h (formula for area of triangle)

1/2×10×8

= 40

7 0
3 years ago
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