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3 years ago

Courtney has 258 beads to make jewelry. Cali has 3 times as many beads as Courtney.

Mathematics

2 answers:

MrRa [10]3 years ago

5 0

One equation would be 258 times 3 = n

notsponge [240]3 years ago

5 0

253 x 3= 759 beads. Its 759 beads because if you multiply 253 times 3, you will get 759 beads.

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nydimaria [60]

Answer:

shifted left 7 & shifted down 3

Step-by-step explanation:

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3 years ago

Can someone help and please make sure it’s right :)

Rufina [12.5K]

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Both of those angles should be measured 112 degrees so -4+116=112

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3 years ago

Sara solved the inequality -4x + > 9 and graphed the solution set. She made a mistake but cannot determine where. Her work is

Lunna [17]

Answer:

step 2 is where she made her mistake

Step-by-step explanation:

- 4x + 1 > 9 ( subtract 1 from both sides )

- 4x > 8

divide both sides by - 4 , reversing the symbol as a result of dividing by a negative quantity.

x < - 2

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1 year ago

Three students were applying to the same graduate school. They came from schools with different grading systems. Student GPA Sch

stiv31 [10]

Answer:

Due to the higher Z-score, Kamala had the best GPA when compared to other students at her school.

Step-by-step explanation:

Z-score:

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

In this question:

Whichever student's GPA had the higher z-score had the best GPA compared to other students.

Thuy 2.5 3.2 0.8

This means that $X = 2.5, \mu = 3.2, \sigma = 0.8$

The z-score is:

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

$Z = \frac{2.5 - 3.2}{0.8}$

$Z = -0.875$

Vichet 88 75 20

This means that $X = 88, \mu = 75, \sigma = 20$

The z-score is:

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

$Z = \frac{88 - 75}{20}$

$Z = 0.65$

Kamala 8.9 8 0.4

This means that $X = 8.9, \mu = 8, \sigma = 0.4$

The z-score is:

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

$Z = \frac{8.9 - 8}{0.4}$

$Z = 2.25$

Due to the higher Z-score, Kamala had the best GPA when compared to other students at her school.

7 0

3 years ago

Felipe is giving a speech at graduation. The first part of speech is 2. 35Minutes long. The second part of the speech is 2.41 mi

DerKrebs [107]

First part of the speech + the second part = the total time
2.35 minutes + 2.41 minutes = 4.76 minutes
So Felipe’s speech is less than five minutes.
Hope that helps!

5 0

3 years ago