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Tpy6a [65]
2 years ago
12

How many hours would someone who earns $7.50 per hour have to work to earn $116.25?

Mathematics
1 answer:
Reil [10]2 years ago
5 0

Answer:

15.5 hours

Step-by-step explanation:

cause i know

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a glacier receded 4 feet a day for a period of 25 days. how much shorter was the glacier at the end of the period.
dangina [55]

Alright, lets get started.

In the question given that glacier receded 4 feet a day for a period of 25 days.

Which shows in 1 day, it recedes = 4 feet

means in 1 day, the height of the glacier gets shorter = 4 feet

So, in 25 days, the height of the glacier gets shorter = 4 * 25

So, in 25 days, the height of the glacier gets shorter = 100 feet

It means the glacier will get 100 feet shorter at the end of the period of 25 days. : Answer

Hope it will help :)



6 0
3 years ago
Suppose the weights of apples are normally distributed with a mean of 85 grams and a standard deviation of 8 grams. The weights
user100 [1]

Answer:

a) 0.0304 = 3.04% probability a randomly chosen apple exceeds 100 g in weight.

b) The weight that 80% of the apples exceed is of 78.28g.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

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.

Weights of apples are normally distributed with a mean of 85 grams and a standard deviation of 8 grams.

This means that \mu = 85, \sigma = 8

a. Find the probability a randomly chosen apple exceeds 100 g in weight.

This is 1 subtracted by the p-value of Z when X = 100. So

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

Z = \frac{100 - 85}{8}

Z = 1.875

Z = 1.875 has a p-value of 0.9697

1 - 0.9696 = 0.0304

0.0304 = 3.04% probability a randomly chosen apple exceeds 100 g in weight.

b. What weight do 80% of the apples exceed?

This is the 100 - 80 = 20th percentile, which is X when Z has a p-value of 0.2, so X when Z = -0.84.

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

-0.84 = \frac{X- 85}{8}

X - 85 = -0.84*8

X = 78.28

The weight that 80% of the apples exceed is of 78.28g.

5 0
2 years ago
Warm up:Area.how many square units will it take to fill up this rectangle?
astra-53 [7]

Answer:

<em>1</em><em>2</em>

Step-by-step explanation:

<em>here's</em><em> your</em><em> solution</em>

<em>=</em><em>></em><em> </em><em>area </em><em>of </em><em>rectangle</em><em> </em><em>=</em><em> </em><em>length</em><em>*</em><em>width</em>

<em>=</em><em>></em><em> </em><em>area </em><em>4</em><em>*</em><em>3</em><em> </em><em>=</em><em> </em><em>1</em><em>2</em><em>.</em><em>s</em><em>q</em><em>u</em><em>n</em><em>i</em><em>t</em>

<em>=</em><em>></em><em> </em><em>area </em><em>of </em><em>square</em><em> </em><em>=</em><em> </em><em>side^</em><em>2</em><em> </em>

<em>=</em><em>></em><em> </em><em>area </em><em>=</em><em> </em><em>1</em><em>.</em><em>s</em><em>q</em><em>u</em><em>n</em><em>i</em><em>t</em>

<em>=</em><em>></em><em> </em><em>Number</em><em> of</em><em> </em><em>square</em><em> </em><em>=</em><em> </em><em>area</em><em> of</em><em> rectangle</em><em>/</em><em>area</em><em> of</em><em> </em><em>square</em><em> </em>

<em>=</em><em>></em><em> </em><em>n</em><em>o </em><em>of </em><em>square</em><em> </em><em>=</em><em> </em><em>1</em><em>2</em><em>/</em><em>1</em>

<em> </em><em> </em><em>=</em><em>></em><em>. </em><em>1</em><em>2</em><em> </em>

5 0
2 years ago
Help me out plssszzszzszz
AveGali [126]

Answer:

the \: answer \: is \: \\  y - 7 = 1(x - 4) \\ y - 7 = x - 4 \\ or \: in \:  other \: way \:  \\ y = x+ 3

8 0
2 years ago
Para armar un prisma cuadrangular, Edgar trazó la plantilla y lo dividió en seis secciones, como se muestra en la imagen
Llana [10]

Answer:

1. x^{2} + x^{2} + (10\cdot x) \cdot (4)

Step-by-step explanation:

(This exercise is written in Spanish and therefore explanation will be held in such language)

El área de este polígono regular es la suma de las áreas de los 4 rectángulos y 2 cuadrados, es decir:

A_{tot} = 4\cdot A_{r} + 2 \cdot A_{c}

A_{tot} = 4 \cdot (10)\cdot x + 2\cdot x^{2}

El cual corresponde con la opción 1.

4 0
3 years ago
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