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adoni [48]
3 years ago
13

Irina predicted that she would sell 75 books, but she actually sold 95 books. Which expression would find the percent error?

Mathematics
2 answers:
CaHeK987 [17]3 years ago
4 0
Percent error = |actual error - expected error/ expected error| * 100%
(|75-95|)/95 = 0.21
0.21 * 100% = 21% error
dolphi86 [110]3 years ago
3 0

Answer:

d

Step-by-step explanation:

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Which sum equalas 11 over 12
lianna [129]
Sum = ADDITION SO ... 11 + 12 = 23.
8 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B20%7D%7B16%7D%20%2A%20100" id="TexFormula1" title=" \frac{20}{16} * 100" alt=" \f
mart [117]
125% because sixteen is equal to a whole which is equal to one-hundered and one fourth of sixteen is four and sixteen plus four is twenty. one fourth of one-hundered is twenty-five so you add the twenty-five to the one-hundered and you get 125%
8 0
3 years ago
Please help! This is i-ready it will probably be easy for you.
Radda [10]

Answer:

3$

Step-by-step explanation:

Your right it is easy 1.50 per pound 1 pound is 16 ounces so to make 32 ounces times it by 2 16 times 2 is 32 you will also times 1.50$ times 2

7 0
3 years ago
HELP!!!!!!!!!!!!!!!!!
ahrayia [7]

Answer:

To do this I am pretty sure your going to have to do some hard calculations.

<u><em>Lets go deeper</em></u>

<u><em></em></u>

so because it is a rectangle every angle is a right angle according to the property of a rectangle.

A right angle is 90 degress

So 8x+18=90
90-18=72

8x=72

72/8=9

x=9

Feel free to do brainlest if correct

4 0
2 years ago
Ava bought a 250-ml bottle of concentrated
Reil [10]

Answer:

Ava needs to add 50ml of cleaner.

Step-by-step explanation:

Ratio of cleaner : water = 1:7

This means that the total ratio;(water+cleaner) = 1+7 = 8

Find fraction of each item out of the total ratio of 8;

Fraction of water = \frac{7}{8}

Fraction of cleaner = \frac{1}{8}

Knowing the fractions, find the quantity of cleaner in <em>ml </em>out of a total of 400-ml;

Cleaner = (1/8 )*400 = 50ml

Therefore, Ava needs to add 50ml of cleaner.

8 0
3 years ago
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