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kaheart [24]
2 years ago
6

In a cafeteria,

Mathematics
1 answer:
____ [38]2 years ago
7 0

Answer:

2 students

Step-by-step explanation:

First, you find the number of students eating either salads and sandwiches. Then, you add the number of students eating salads and sandwiches together. Finally, you will subtract that number from the 12 total students

<h3>2/3 * 12/1 = 8 (sandwiches)</h3><h3>1/6 * 12/1 = 2 (salads)</h3><h3>8 + 2 = 10 (combined)</h3><h3>12 - 10 = 2 students</h3><h3 />
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If 12 men are needed to run 4 machines how many men are needed to run 20 machines
OLEGan [10]
6.66666667 should be your answer...probably should round it though
6 0
3 years ago
Read 2 more answers
There are 25 kids in a class, and the number of boys is 2/3 of the number of girls. How many boys and how many girls are in this
Ksju [112]
25 kids in all
2xboys:3x girls
 
so the equation would be 
2x+3x=25
solve,
5x=25
/5           /5
x=5
2x=10
3x=15


10 boys and 15 girls



3 0
3 years ago
Modeling real life last week you finish level to of a video game and 32 minutes today you finish level 2 in 28 minutes what is t
rusak2 [61]

Answer:

  -12.5%

Step-by-step explanation:

The percentage change in your time can be computed using ...

  pct change = ((new value)/(old value) -1) × 100%

  = (28/32 -1) × 100%

  = (0.875 -1) × 100% = -12.5%

The time to finish level 2 decreased by 12.5%.

6 0
3 years ago
Solve for the variable in 6⁄18 = x⁄36 A. 12 B. 6 C. 3 D. 9
RoseWind [281]
\dfrac{6}{18}  = \dfrac{x}{36} 

\dfrac{1}{3} =  \dfrac{x}{36} 

\dfrac{1}{3} * 36 = x   |Multiply \ by \ 36|

x= \dfrac{36}{3}  |Divide \ both \ sides \ by \ 3|

x=12
4 0
2 years ago
A firm’s marketing manager believes that total sales for next year will follow the normal distribution, with a mean of $3.2 mill
klasskru [66]

Answer:

The sales level that has only a 3% chance of being exceeded next year is $3.67 million.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

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.

In this question, we have that:

In millions of dollars,

\mu = 3.2, \sigma = 0.25

Determine the sales level that has only a 3% chance of being exceeded next year.

This is the 100 - 3 = 97th percentile, which is X when Z has a pvalue of 0.97. So X when Z = 1.88.

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

1.88 = \frac{X - 3.2}{0.25}

X - 3.2 = 0.25*1.88

X = 3.67

The sales level that has only a 3% chance of being exceeded next year is $3.67 million.

7 0
3 years ago
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