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3 years ago

Question listed below.

Mathematics

2 answers:

matrenka [14]3 years ago

7 0

Answer:

I think its 14 students

Step-by-step explanation:

40%x35=14

Kaylis [27]3 years ago

4 0

Answer:

14 students

Step-by-step explanation:

40% of 35 is 14. Therefore, it is 14. I hope this helps!

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−4(3m−3)+(−10+8m)=?

Valentin [98]

-4(3m-3)+(-10+8m)
12m+12-1+8m
12m+8m = 20m
+12 -1= +11
answer: 20m+11

*note negative times a negative equals positive and negative times positive is negative
first: you multiply -4 by 3m which is -12m.
second: you multiply -4 by -3 which is +12
third: find the invisible which is 1. (located right here: +(1) (-10+8m)
fourth: multiply invisible 1 by -10 which is -10
fifth: multiply invisible one by +8m which is +8m
sixth: combine like terms
seventh: answer

5 0

3 years ago

Simplify (125)^-2/3 with positive exponents and no radicals show all work. PLEASE HELP

Reptile [31]

For this case, what you should keep in mind are the following considerations:

1) Rewrite the expressions correctly using the properties of the exponents: Addition, multiplication, division, subtraction and negative exponents.

2) Simplify the expression as much as possible.

Answer:
See attached image.

3 0

3 years ago

Coefficient of (2x+y^2)^5

BigorU [14]

(2x + y2)5 heres you answer your so welcome

7 0

3 years ago

2) Brian purchased pens for 75 cents each and pencils for 40 cents each he bought total of 22 writing utensils for $11.95. How m

d1i1m1o1n [39]

Answer:

13 pencils.

Step-by-step explanation:

Let x be the pens and y be the pencils

Given:

Brian purchased pens for 75 cents each and pencils for 40 cents each he bought total of 22 writing utensils for $11.95.

Total pens and pencils is 22

So, $x+y=22$ ----------------(1)

And he bought all utensils for $11.95. and each pen for 75 cents and pencils for 40 cents.

$0.75x+0.40y=11.95$ ------------(2)

solve equation 1 and equation 2 for x and y.

From equation 1.

$x+y=22$

$y=22-x$ ----------------(3)

put y value in equation 2.

$0.75x+0.4(22-x)=11.95$

$0.75x+0.4\times 22-0.4x=11.95$

$0.75x+8.8-0.4x=11.95$

$0.75x-0.4x=11.95-8.8$

$0.35x=3.15$

$x=\frac{3.15}{0.35}$

$x=9$

Now substitute x value in equation 3.

$y=22-9$

$y=13$

So, he buy 13 pencils.

5 0

3 years ago

A fish swims at a speed of 12 miles per hour. A boy swims at a speed of 4.4 feet per second. 3 ft = 1 yd 5280 ft = 1 mi How much

just olya [345]

You'll need to convert both speeds into yards per minute.

12 mph = 12 mph 1760 yd 60 min
---------- * ------------ * ----------
1 mile 1 hr

Note that "miles" cancels. So does "hours." Finish this work.

Then convert 4.4 ft/sec into yards per minute.

Then, finally, compare your two rates via subtraction of the smaller from the larger.

4 0

3 years ago

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