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3 years ago

Jamil ate 1/5 of a pie and Rashan ate 2/5 of a pie.

Mathematics

2 answers:

laila [671]3 years ago

6 0

Answer:

Step-by-step explanation:

1/5 + 2/5 = 3/5

answer is B

ki77a [65]3 years ago

5 0

Answer:

3/5

Step-by-step explanation:

This is because 1/5 + 2/5 equals a totals of 3/5 eaten.

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It takes three identical water pumps 8 hours to fill a pool, What is the constant of variation?

BaLLatris [955]

Answer:

Constant of variation is 24.

Step-by-step explanation:

Inverse variation states that a relationship between two variables in which the product is remain constant.

If one variable increases then, the other one decreases in proportion so that the product is unchanged,

if y is inversely proportional to x i.e $y \propto\frac{1}{x}$ or

$y =\frac{k}{x}$ ;where k is the constant of variation.

It is given that 3 identical water pumps takes 8 hours to fill a pool,

since, it will take less time with more pumps, so it is an inverse variation.

By definition of inverse variation;

$time = \frac{k}{pump}$

Substitute the values to solve for k;

$8 = \frac{k}{3}$

Multiply by 3 to both sides we get;

$8 \times 3 = \frac{k}{3} \times 3$

Simplify:

k = 24

Therefore, the constant of variation is, 24

3 0

3 years ago

Tessa buy candy that cost $4 per pound. she will spend more than $40 on candy. what are the possible number of pounds she will b

ivanzaharov [21]

Answer:

She will buy at least 10 pounds or more.

Step-by-step explanation:

If each pound costs $4 and she is spending $40 worth, she needs to buy 10 pounds in order to spend the minimum of $40. She can buy more than 10 pounds to keep spending more money. 11, 12, 13, 14, 15, and so forth are all possible numbers in pounds she will buy.

5 0

3 years ago

Use the graph that shows the solution to f(x)=g(x) .

n200080 [17]

Answer:

1. x=3 x=1

2. x=0

Step-by-step explanation:

We want f(x) to equal g(x)

f(x)=g(x)

1/(x-2) = (x-2)

Using cross products

1 = (x-2) * (x-2)

1 = x^2 -2x-2x+4

Subtract 1 from each side

1-1 = ^2 -2x-2x+4-1

0 = x^2 -4x+3

Factoring

What number multiplies to 3 and adds to -4

-3*-1 = 3

-3+-1 = -4

0= (x-3) (x-1)

Using the zero product property

x-3 =0 x-1=0

x=3 x=1

2. f(x)=x^2+4x+2

g(x)=(1/2)^ x+1

From the graph,we can see they intersect at x=0

5 0

4 years ago

The perimeter of a square measures 26 cm. What is the length of the side of the square? Sketch a model to show how the length is

Serga [27]

Answer:

The length is 6.5

and the area is 6.5⁴

3 0

3 years ago

I. AM .SO. CONFUSED. HELP. PLZ.

dedylja [7]

Answer:

16mm

Step-by-step explanation:

Just do 40 * 2/5 = 80/5 = 16mm

3 0

4 years ago