MATHEMATICS MIDDLE SCHOOL

Simplify.

-14 × 8 × 1/4 + (-22)

Answers

Answer 1
Answer: the answer to -14 × 8 × 1/4 + (-22) is -50

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47 times 0.76 =equals what

Answers

47 times .76 is equal to 35.72. Hope this helps :).
47 * .76
    4
    47
   .76
   282
 329
3572
bring down the decimal point

35.72 

Wyatt room is a rectangular with a perimeter of 40 feet. the width of room is 8 feet .what is the length of the room

Answers

width= 8ft
lenght=x
Perimeter of a rectangle=2 length + 2 width


Therefore:
2x+2(8 ft)=40 ft
2x+16 ft=40 ft
2x=40 ft-16ft
2x=24 ft
x=24 ft/2
x=12 ft

Answer: the lenght of the room will be 12 ft.
perimiter=2(legnth+width)
perimiter=40
width=8
40=2(legnth+8)
divide both sides by 2
20=legnth+8
minus 8 both sides
12=legnth

legnth=12 feet

Keisha wants to read for 90 minutes.so far , she has read 30% of her goal. how much longer does she need to reach her goal?

Answers

She needs to read for 63 minutes to reach her goal.

What is percent?

A number or ratio that can be expressed as a fraction of 100 is called a percentage. Divide the number by its whole number and multiply it by 100 if we have to figure out the percentage of that number. Consequently, the percentage represents one part per hundred. The word "per 100" means "per percent." The number "%" is used to symbolize it.

Given total time to read = 90 minutes

and completed 30% of the goal,

so  30% of 90 = 30/100 x 90

= 2700/100 = 27

since she has read 27 minutes

time left to reach goal = 90 - 27

time left to reach goal = 63 minutes

Hence 63 minutes more she needs to read to complete the goal.

Learn more about percent;

brainly.com/question/28840349

#SPJ3
30% of 90            whenever it says "of" put in a multiplication sign 
30% x 90              take out the % sign (percent means divided by 100)
30/100 =3/10               simplify,then multiply by 90
3/10 x 90 = 270/10          simplify
270 = 27     
90 - 27 = 63            subtract 27 because it is the amount read so far from the total
Keisha has to read 63 more minutes to reach her goal.

30w^3 -6w
---------------
6w

Answers

(30w^3-6w)/(6w) = (6w(5w^2-1))/(6w) =5w^2-1
first simplify the numerator by dividing by the greatest common factor3w^3-6w= 6w(5w^2-1)_________________________6wthe 6w can be divided in the numerator and denominator and cancel out=5w^2-1hope this helps

Find the sum or diffrence write your answer in simplest form. wats the estimate5/6 + 7/8

Answers

(5)/(6) + (7)/(8)

Convert your denominators into a same number..

(20)/(24) ~+~ (21)/(24) ~=~ (41)/(24)

(41)/(24) as a mixed number = 1 (17)/(24)

Your answer - 1 (17)/(24)

PLEASE HELP!!!!!!!!!Let x^2+bx+c = 0 be a quadratic whose roots are each two more than the roots of 3x^2-5x-7. What is c?

Answers

Let x_1 , x_2 be the roots of the equation 3x^2-5x-7. By the Viet theorem you have that \left \{ {{x_1+x_2=- (5)/(3) } \atop {x_1x_2= (-7)/(3) }} \right..

For the equation x^2+bx+c = 0 you'll have that c=(x_1+2)(x_2+2)=x_1x_2+2(x_1+x_2)+4=(-7)/(3)+2\cdot(- (5)/(3) )+4
That is (-7)/(3)- (10)/(3) +4=- (5)/(3).

Answer:- (5)/(3)
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