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Naily [24]
3 years ago
7

Which expression is equivalent to 30(1/2x - 2) plus 40(3/4y-4)

Mathematics
1 answer:
nirvana33 [79]3 years ago
7 0

Answer:

225

Step-by-step explanation:

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Emma's final grade in her math class is the average (mean) of her 5 chapter tests she took throughout the year. If she received
NikAS [45]

Answer:

Step-by-step explanation:

The mean (or average) of a set of numbers can be found with the following formula:

Mean = \frac{A_{1} + A_{2} + ... + A_{N}}{N}

For this problem, we have five numbers, so we add them together and divide by 5:

Mean = \frac{92 + 85 + 78 + 97 + 88}{5}

Mean = \frac{440}{5}

Mean = 88

8 0
3 years ago
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Sarah rolls a die twice. What is the probability that she rolls a 3 and then an even number?
Brrunno [24]

Answer:

A

Step-by-step explanation:

The probability of rolling a 3 is  

1 /6  since there is 1 three and there are 6 sides total. The probability of rolling an even number is  1 /2  since there are 3 even numbers and 6 total sides. Multiply  1 /6  and  1 /2  and the correct answer is  1 /12 .

3 0
3 years ago
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Can anyone find the answer for this equation?
Lynna [10]
66 hope it is right
5 0
3 years ago
Does coordinate m or coordinate n represent a greater number in the following parallelogram?
gavmur [86]
Coordinate m

Hope this helps
6 0
3 years ago
Read 2 more answers
Please help right away
andrew-mc [135]

Answer:

100

Step-by-step explanation:

Mixed candy question... Skittles jar... to be filled with Jelly beans.

Let's first calculate the volume of the jar.  We'll assume it's a regular cylindrical prism jar, unlike the one on the photo which is narrower on top.

V = π * r² * h = π * (3.5)² * 11.5 = 140.875 π = 442.6 cubic cm

Now, we don't have the precise measurement of a jelly bean, but we know it's roughly 2-3 cubic cm.  The precision isn't needed to answer this question, just to have a rough idea... it's no 300 cu cm per jelly bean.

So, let's assume a 3 cu cm per jelly bean (2 cu cm wouldn't the final answer)....

442.6 / 3 = 147.5 jelly beans, approximately.

So, can they fit 100,000?  No

Can we fit 10,000 in there?  No

Can we fit 100?  Yes.

Can we fit 1?  Certainly

The most reasonable lower-limit would then be 100.

4 0
3 years ago
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