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yawa3891 [41]
3 years ago
15

A half-marathon 13 miles, how many kilometers is that?

Mathematics
2 answers:
denis23 [38]3 years ago
8 0

Answer:

20.921

Step-by-step explanation:

I looked it up

Ulleksa [173]3 years ago
6 0
It would be 20.921 kilos
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johnathan class has 30 boys of the students in his class 60% are girls how many girls are in johnathans class
Gekata [30.6K]

Answer:

45 girls

Step-by-step explanation:

If 60% of the class is girls then 40% of the class is boys.

30 boys are in the class, meaning that 40% of the class comprises those 30 boys

First, we need the total number of class members: 30/x = 40/100 -> 40x=3000 -> x=3000/40 -> x=75

Now that we know the total class members, at 75, we can calculate the number of girls in the class. You can do this:

0.6*75=45

or

60/100=x/75 and solve for x

5 0
3 years ago
In a school, 22% of the students are sixth graders. What is the probability that a randomly chosen student will not be a sixth g
svlad2 [7]
If 22% are sixth graders, then the rest must not sixths graders. 

100% of the school - 22% sixth grades = 78% are not sixths graders
8 0
3 years ago
Find the slope of a line parallel to 3x + y = 15
Maurinko [17]
Rearranging the equation gives us y=15-3x

if we were to find an equation for a PARALLEL line, we would just use the same slope.

if we were to find an equation for a PERPENDICULAR line, we would do the opposite reciprocal. in this case, that would be answer D. but this is WRONG!

the question asks us to find the slope of a PARALLEL line. thus, the answer is C.

final answer -- C.
7 0
3 years ago
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How does math anxiety affect working memory, and why do such changes in
Alika [10]
Anxiety can cause you to overthink what you already know which interns makes you think you don’t know it. Math is just formulas and arthritic and if anxiety has you doubting that you know how to solve a problem then you won’t remember how to solve it
6 0
2 years ago
Letf(x)=(x+2)2.
Troyanec [42]

Answer: it is stretched vertically by a factor of 3

Step-by-step explanation:i make a unit test and get 100% that is correct.

I hope This help;)

7 0
2 years ago
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