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asambeis [7]
3 years ago
9

Solve for x A) -5 B) 6 C) -9 D) 1

Mathematics
1 answer:
masha68 [24]3 years ago
5 0

Answer:

Step-by-step explanation:

11 = 14+x+7+x

11=2x+21

2x=11-21=-10

X= -5

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write an expression to represent admission to a zoo of $10.00 and the cost of special exhibits s at $4 each. Evaluate you expres
Ray Of Light [21]

Answer:

10.00 +4s .

u wanted expression ,  not answer.?

Step-by-step explanation:

3 0
3 years ago
A recipe calls for 5 parts strawberry juice to 3 parts water. To make 64 fluid ounces of the strawberry drink. How many fluid ou
leva [86]

Answer:

40 parts of strawberry juice

24 parts of water

Step-by-step explanation:

let s be strawberry juice, w be water and let p be parts

5s+3w=8p

you want to have 64 parts for 64 oz

so everything must be multiplied by 8


6 0
3 years ago
A hair cut cost $25 and you want to leave a 15% tip what is the total bill?
Olin [163]
You need to change 15% to a decimal and multiply it by 25

25 x 0.15 = 3.75

Then add 3.75 to 25 to get the total

25 + 3.75 = 28.75

So, the answer is 28.75$

Hope it helps :)
6 0
3 years ago
Read 2 more answers
Determine whether the two quantities is proportional
bonufazy [111]

Answer:

No, is not proportional because it does not go through the origin

Step-by-step explanation:

In order to find whether this is proportional or not you gotta divide y from x

and if the result is the same it means the relationship it is proportional.

30/2=15

40/4=10

50/6=8.333

The relationship is not proportional

8 0
3 years ago
A report includes a statement that the​ "average" test score of applicants to medical schools is 28.4. What is the role of the t
qaws [65]

Answer:

See explanation below.

Step-by-step explanation:

The average is measure of central tendency that is also called sample mean and is calculated from the following formula:

\bar X = \frac{\sum_{i=1}^n X_i}{n}

This is an estimator of the population mean and is unbiased since the expected value for the estimator is the same parameter as we can see here:

E(\bar X)=\frac{\sum_{i=1}^n E(X_i)}{n} =\frac{n\mu}{n}=\mu

And is important because is the most common measure of central tendency reported on any study.

Is important to remember that this measure can be affected by outliers , for this case when we have outliers is better use the median as a measure of central tendency

7 0
3 years ago
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