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Rina8888 [55]
3 years ago
7

In the school cafeteria students choose what they want to eat each day. They can have 1 meat, 1 vegetable, a bread, and 1 desser

t.
There are 3 choices for meat, 2 vegetable choices, 2 bread choices, and 2 dessert choices. How many different combinations are
possible?


9
12
18
24​
Mathematics
1 answer:
Brilliant_brown [7]3 years ago
4 0

Answer:24

Step-by-step explanation:

Múltiply 3(2)(2)(2)=24

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One watering system needs about three times as long to complete a job as another warning system when both systems operate at the
algol13

Answer:

One watering system requires 36 minutes to complete the job alone while another watering system requires 12 minutes to complete the job alone.

Step-by-step explanation:

Given:

Both the system can complete the job = 9 minutes

We need find the time required by each system to do the job.

Solution:

Let the time required by another watering system to complete the job be 'x' mins.

Now given:

One watering system needs about three times as long to complete a job as another watering system.

Time required by one watering system = 3x

Rate to complete the job by another watering system = \frac{1}{x}\ job/min

Rate to complete the job by One watering system = \frac{1}{3x}\ job/min

Rate at which both can complete the job = \frac{1}{9}\ job/min

So we can say that;

Rate at which both can complete the job is equal to sum of Rate to complete the job by another watering system and Rate to complete the job by One watering system.

framing in equation form we get;

\frac{1}{x}+\frac{1}{3x}=\frac19

Now taking LCM to make the denominator common we get;

\frac{1\times3}{x\times 3}+\frac{1\times1}{3x\times1}=\frac19\\\\\frac{3}{3x}+\frac{1}{3x}=\frac19\\\\\frac{3+1}{3x}=\frac{1}{9}\\\\\frac{4}{3x}=\frac{1}{9}

By Cross multiplication we get;

4\times9 =3x\\\\3x =36

Dividing both side by 3 we get;

\frac{3x}{3}=\frac{36}{3}\\\\x=12\ min

Time required by One watering system = 3x =3\times 12 =36\ min

Hence One watering system requires 36 minutes to complete the job alone while another watering system requires 12 minutes to complete the job alone.

6 0
3 years ago
Please help me Estimate 476-269
natima [27]
 after subtracting  the  two numbers  which would equal  207  you round  which  would 210

5 0
3 years ago
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Will give brainliest
Vesnalui [34]

Answer:

1/5... 1 on top 5 on bottom

Step-by-step explanation:

sub in the values:

\frac{5+y}{6x} will now be \frac{5+7}{6(10)}

now add:

\frac{12}{60}

simplify:

1/5

4 0
3 years ago
A refrigerator box measures 11 feet by 6 feet by 6 feet Sam decides to fill up the box three-fourths with trash how much space w
IRINA_888 [86]

Answer:

297 feet

Step-by-step explanation:

11 × 6 × 6 = 396

396 × 3/4= 297 ft

3 0
3 years ago
Which is 2logx - 6 log(x-9) written as a single logarithm.
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Answer: option c

Step-by-step explanation:

To solve this problem you must keep on mind the properties of logarithms:

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Therefore, knowing the properties, you can write the expression gven in the problem as shown below:

2logx-6log(x-9)\\logx^2-log(x-9)^6\\\\log\frac{x^2}{(x-9)^6}

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