Kristen wants to cut ladder rungs from 6ft board how many rungs can she cut if they are 3/4 ft

Answers

Answer 1

Answer:

Answer:

Kristen wants to cut ladder. 8 pieces can be cut out of a 6 foot board in the form of $(3)/(4)$ foot rungs.

Solution:

The length of the board is 6 feet.

Kristen wants to cut $(3)/(4)$ foot ladder rungs from the 6 foot board.

$(3)/(4)$ is in the fraction form. To make the calculation easier lets convert it to the decimal form.

Therefore, $(3)/(4)$ =0.75

Now each small rung is 0.75 foot long.

To find out how many pieces of rung can be cut out of a 6 foot board we need to divide 6 by 0.75. This will give us exactly how many pieces can be cut out.

Therefore;

6 ÷ 0.75 = 8

Hence, 8 pieces can be cut out of a 6 foot board in the form of $(3)/(4)$ foot rungs.

Answer 2

Answer:

Answer:

Step-by-step explanation:

6ft board/0.75=8

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1.) In a class of 45 students , 80% received A’s on a Math test . How many students received an A?2.) Mary spent 15 dollars. If this was 20% of her earnings, how much money did she earn ?

Answers

Step-by-step explanation:

1) 45 times 0.8 (which is equivalent to 80 percent) is 36 students.

2) 15 divided by 0.2 is 75, so she earned 75 dollars

PLZ HELP ASAP!!!! A line has a slope of -1/2 and a y-intercept of 3. Which equations represent the line? Choose all answers that are correct. A. 2y=6 x B. x 2y=6 C. y=-1/2x 3 D. (y-2)=-1/2(x-2)

Answers

slope intercept form is y=mx+b
so y=-1/2x+3 would be correct

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What is the value of 8 in 8,644.58 plz
thx if anyone helps

Answers

the first 8 in 8,644.58 is ten thousand and the second 8 is hundreth!

The answer is 8,000
I think... Lol

Tony asked his class "to the nearest 10 min, how many min did you spend on homework last night?" how many students studied for 30 min or more?A.5 students
B.8 students
C.11 students.
D.13 students

Answers

11 is correct because the meadian depends on rounding so it equals 11

What is the volume of a sphere when r = 9 ft

Answers

volume of a sphere is calculated using a formula:
$(4)/(3) \pi * r^(3)$

so in this case:

$(4)/(3) \pi * 9^(3)$

and taht is:

$(4)/(3) \pi *729$
$= 972 \pi$

Hope it helps you! :)

$V=\frac43 \pi r^3\n r=9m\n \n V=\frac43 \pi 9^3=\frac43 \cdot 729\pi=972\pi$

What is 4x^2+4-5x+x-2x^+8

Answers

combine like terms
move the like terms together (x^2 with x^2, x with x, number wiht numbers)
4x^2-2x^2-5x+x+4+8
2x^2-4x+12

2 times (x squared-2x-2)

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