MATHEMATICS MIDDLE SCHOOL

What is the distance between these two points on a number line ?
178 and 313

Answers

Answer 1
Answer: All you have to do is subtract them. 313-178=135
Answer 2
Answer:

i think it is -135 hope it helps

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A rectangular card has an area of 120 over 1\4 square inches. The card is 6 over 1\2 inches wide. How long is the card???? if u need me to display answers A., B., C, D send me a message or comment. thank ya!

Answers

the area is 120/(1/4) or 120 x 4 or 480 square inches
the width is 6/(1/2) or 6 x 2 or 12 inches
to find the length, divide the area by the width
480/12= 40
40 inches
Hope this helps :)

each of the 28 students in romis class raised at least $25 during the jump a thon. what is the least amount of money the class raised?

Answers

If each of the 28 students made at least $25, you would multiply 28 and 25 together to obtain the least amount of money the class raised. That gets, 28x25 = 700. The class made at least $700.
At least $700 was raised, 28 x $25

A cereal box is 19 centimeters long, 6 centimeters wide and 28 centimeters high. An artist is trying to create a design for the box. What is the surface area the artist needs to cover?

Answers

Surface area = Lateral area + Area of the base
Surface area = Perimeter of the base x high + 19 x 6
Surface area = (19+19+6+6) x 28 + 114
Surface area = 50 x 28 + 114
Surface area = 1544 centimeter square

Factor into pairs x^2-22x-48

Answers

I am going to explain how to do this. Factor by grouping. Your last number should have factors that add to the middle number. -24 times 2 multiplies to 48 and adds to 22.  Then do x^2-24x+2x-48. Then x(x-24)+2(x-24). The inside terms are the same so put (x-24)(x+2). I got x+2 because these were outside the parantheses. Your answer would be (x-24)(x+2)

Hope this helped you!!

Please help me with this question

Answers

tax on video game : 8% of 39.99 = 0.08(39.99) = 3.199 rounds to 3.20
tax on book : 8% of 12.99 = .08(12.99) = 1.039 rounds to 1.04
3.20 - 1.04 = 2.16 <== tax on video game is 2.16 more then the book

her weekly paycheck was 6500....including the 1000 salary.....so she made (6500 - 1000) = 5500 on commission sales.

so what percent of 45,000 is 5500 ?
percent formula : is/of = %/100
is = 5500
of = 45,000
percent = x
now we sub
5500/45,000 = x/100
cross multiply
45,000x = 550000
x = 550000/45000
x = 12.22 % rounded = 12% <== her commission rate

Which of the following situations can be modeled by the equation n+0.50n-0.3n =1.2n, where n is the # of nickels originally in the jar?a. Amanda takes out 50% of the nickels in the jar on Friday and adds a number of nickels that is equal to 30% of the remaining number of nickels in the jar on Monday. There are 20% fewer nickels in the jar after Monday than before Friday.

b. Amanda takes out 50% of the nickels in the jar on Friday and adds a number of nickels that is equal to 30% of the original number of nickels in the jar on Monday. There are 20% fewer nickels in the jar after Monday than before Friday.

c. Amanda adds 50% of the original number of nickels to the jar on Friday. The number of nickels Amanda takes out on Monday is equal to 30% of the new number of nickels. There are 20% more nickels in the jar after Monday than before Friday.

d. Amanda adds 50% of the original number of nickels to the jar on Friday. The number of nickels Amanda takes out on Monday is equal to 30% of the original number of nickels. There are 20% more nickels in the jar after Monday than before Friday.

Answers

C. because n would equal 1 then add 50% or .5 then take 30% or.3 equaling 1.2
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