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2 years ago

Can you please please help me.

Mathematics

2 answers:

scoundrel [369]2 years ago

6 0

Answer:

yes

Step-by-step explanation:

yes

Natali [406]2 years ago

5 0

Answer:

$x=22\text{ and } y=123$

Step-by-step explanation:

By definition, the interior angles of a triangle must sum to 180°. Therefore:

$(2x+13)+(57)+(3x)=180$

Combine like terms:

$5x+70=180$

Subtract 70 from both sides:

$5x=110$

And divide both sides by five. Hence:

$x=22$

Next, notice that y and the 57° angle form a linear pair. By definition, linear pairs equal 180°. Therefore:

$y+57=180$

So:

$y=123$

Alternatively, we can use the Exterior Angle Theorem, which states that the exterior angle is equivalent to the sum of the two interior angles opposite to the exterior angle. In other words:

$y=(2x+13)+(3x)$

Since we've determined that x = 22:

$y=(2(22)+13)+(3(22))=44+13+66= 123$

We acquire the same answer.

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Is it multiplication or division?...How much ch ice cream does each cone hold of four cones hold 1/2 pound

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using the conversion

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2 years ago

Solve for x. -3x + 4 = -8

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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:

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

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

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3 years ago

2. Mr. Andrew wants to give each of his students an equal number of the crayons he bought. There are 32 students in Mr. Andrew’s

Vladimir79 [104]

Answer:

Step-by-step explanation:

Because we don't know how many crayons he bought we will call it c.

c = total number of crayons purchased

T = total number of crayons each student gets

To determine how many crayons each student gets we divide c by 32, because that's the number of students in his class.

c / 32 = T

So let's say he purchased 120 crayons.

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Since he can't give a fraction of a crayon, in this case, each student will get 3 crayons.

We will now pretend there are 24 crayons in 1 box.

So T still equals the total number of crayons each student gets and c still equals number of crayons purchased, but now we also have b which equals the number of crayons in 1 box.

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b = number of crayons in 1 box

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So b*x = c

We can still write the equation:

c / 32 = T

We know T = 12 So we plug 12 in for T

c / 32 = 12 Now multiply each side by 32, so 32 will cancel on the left.

32c/32 = 12 * 32

c = 12 * 32

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So if he needs to purchase 384 crayons we can use our other equation.

b*x = c

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So we plug those in.

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This will work for whatever numbers you were given.

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