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Aleksandr-060686 [28]
2 years ago
13

15 There are 30 students in a class. 1 5 like football. How many students do not like football?​

Mathematics
2 answers:
Mkey [24]2 years ago
6 0
30 Students
15 like football
So we subtract to know how many dont like
30 - 15 = 15
So 15 Do not like football
almond37 [142]2 years ago
5 0
15

Explanation:
30-15= 15
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How to solve quadratic inequalities.
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Find all the zeros of the polynomial, and arrange the zeros in increasing order. ...

Plot those numbers on the number line as open or closed points based upon the original inequality symbol.

Choose a test value in each interval to see if the interval satisfies the inequality or not.

6 0
2 years ago
Which figure shows a reflection of pre-image ABC over the y-axis?
bixtya [17]

Answer:

A

Step-by-step explanation:

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4 0
3 years ago
You want to know if environmental conditions affect feeding behavior in rats. You conduct a study measuring the amount of food p
Norma-Jean [14]

Answer:

c. Independent measures; Factorial (two-way) ANOVA

Step-by-step explanation:

The answer to this question is the independent measures one way ANOVA. This is as we have these conditions light on or off and cold or warm room. Now we have to check how these factors are able to affect the amount of food pellets eat whenever they are in these experimental conditions.

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7 0
3 years ago
A chef is going to use a mixture of two brands of Italian dressing the first brand contains contains 7% vinegar and the second b
Cerrena [4.2K]

Answer:

176 of 12% vinegar

44 of 7% vinegar

Step-by-step explanation:

Percentage vinegar required = 11%

Volume = 220 mL

First brand % = 7%

Second brand % = 12%

Let p = volume of 12% vinegar material

Mixture :

0.12p + 0.07(220 - p) = 220 * 0.11

0.12p + 15.4 - 0.07p = 24.2

0.05p = 8.8

p = 8.8 / 0.05

p = 176

176 of 12% vinegar and

220 - 176 = 44

44 of 7% vinegar

4 0
3 years ago
Multiply (2.0 ⋅ 10−4) ⋅ (3.1 ⋅ 10−20). Express the answer in scientific notation. The options are:
Mkey [24]
(2.0×10^-4)×(3.1×10^-20)
=(2.0×3.1)×(10^4×10^-20)
=6.2×10^(-4+(-20))
=6.2×10^-24. Hope it help!
3 0
3 years ago
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