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3 years ago

13

The average score on an aptitude test is 80 with a standard deviation of 10. one person scored a 95. what is that person's z-sco

re?

1 answer:

Serga [27]3 years ago

6 0

Z = (95-80)/10

Z=15/10

Z=1.5

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In art class, Kim is mixing paint. The paint mixture is 3 parts yellow and 5 parts blue. What percent of the paint is yellow? Qu

AlekseyPX

Altogether there are 8 parts. Thus, the part that is yellow is 3/8, or 37.5%

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3 years ago

Theresa has $12 in nickels and quarters. If she has the same number of each kind of coin, how many nickels and quarters does she

postnew [5]

Answer: She has 40 nickels and 40 quarters .

Step-by-step explanation:

Let be "n" the number of nickels Theresa has and "q" the number of quarters Theresa has.

You know that she has a total of $12 in nickels and quarters. In cents, this is:

$\$12*100=1,200\ cents$

Then, based on this you can write the following expression:

$5n+25q=1,200$

Since $n=q$ , you can rewrite it as:

$5n+25n=1,200$

Solving for "n", you get:

$30n=1,200\\\\n=\frac{1,200}{30}\\\\n=40$

Therefore she has 40 nickels and 40 quarters .

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3 years ago

600 thousands = how many tens?

san4es73 [151]

The answer is 60,000. because it would equal six hundred thousand, and that divided by 10 is 60,000

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3 years ago

What are the domain values for the function f(x) = 2x + 3 if the range values are (-1, 1, 2,4}

ArbitrLikvidat [17]

Answer:

Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.

So i think it will be -1

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3 years ago

PLEASE HELP I’LL MARK BRAINLIEST

Anna35 [415]

the answer is c :) :)

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3 years ago