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3 years ago

explain how you can use multiplication to find the quotient 3/5 divided by 3/15 then evaluate the expression

1 answer:

5 0

To divide by a fraction, simply multiply by its reciprocal.
So 3/5 divided by 3/15 is the same as 3/5 multiplied by 15/3.
To multiply the fractions, just multiple the numerators together and multiply the denominators together.
3/5 * 15/3 = 45/15
Simply the fraction by dividing top and bottom by 15 giving
3/1
and 3/1 is equal to 3

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Answer:

204.4m

Step-by-step explanation:

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so it would be 2(6x5) +2(6x3)+2(5x3)=126m

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3 years ago

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3 years ago

Please help me I am horrible at calculations Solve for x when y=-0.27 5y+8(x−3y)=7x−12

expeople1 [14]

Answer:

X = -12.54 (I am a Math Class Topper in both 6th Grade an 7th Grade)

Step-by-step explanation:

5 x .27 = 1.35

8x - (3 x .27) = .81

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1.35 + X - .81 = -12

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4 years ago

How would the domain and range of the function y = one-fourth x minus 6 be determined? Explain.

Liono4ka [1.6K]

Answer:

Domain = ( -∞ , ∞ )

Range = ( ∞ , ∞ )

Step-by-step explanation:

A function is given to us and we need to find the domain and range of the given function .

The function :-

$\rm \implies y = \dfrac{1}{4}x - 6$

Definitions :-

Range :- The range is the set of all valid y values .
Domain :- All real numbers except where the expression is undefined.

In this case, there is no real number that makes the expression undefined. Therefore the domain will be :-

Domain :-

$\rm Domain = ( -\infty , \infty )$

$\rm Domain = \{ x | x \in \mathbb{R} \}$

Range :-

$\rm Range = ( -\infty , \infty )$

$\rm Range = \{ y | y \in \mathbb{R}\}$

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3 years ago

A train traveling nonstop to its destination is able to make the trip at an average speed of 70 miles per hour. On the return tr

larisa86 [58]

Answer:

Return trip travel time: 7h

Step-by-step explanation:

Let d be the distance.

Index 1 refers to initial trip, index 2 refers to the return trip.

v1=70mi/h

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t2=t1+3h, or t1=t2-3h (travel times)

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