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3 years ago

5

A car travels 1/6 of the distance between two cities in 3/5 of an hour. At this rate, what fraction of the distance between the

two cities can the car travel in 1 hour?

1 answer:

CaHeK987 [17]3 years ago

7 0

6 if you divide it out

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Denise<br> has 7/8 pound of hamburger meat. How many 1/4 pound hamburgers can she make?

igor_vitrenko [27]

Answer:

3

Step-by-step explanation:

1/4 = 2/8

With 7/8 pounds of meat, you can make 3 patties (6/8) and have 1/8 pound leftover

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2 years ago

Read 2 more answers

Need help with this....

Yakvenalex [24]

Answer:

$\boxed{\dfrac{f(a+h)-f(a)}{h}=-3a^2-3ah-h^2}$

Step-by-step explanation:

$f(x)=-x^3+2\\\\\dfrac{f(a+h)-f(a)}{h}\\\\f(a+h)\to\text{substitute x = a + h}\\f(a)\to\text{substitute x = a}\\\\\dfrac{f(a+h)-f(a)}{h}=\dfrac{-(a+h)^3+2-(-a^3+2)}{h}\\\\\text{use}\ (x+y)^3=x^3+3x^2y+3xy^2+y^3\\\\=\dfrac{-(a^3+3a^2h+3ah^2+h^3)+2-(-a^3)-2}{h}\\\\=\dfrac{-a^3-3a^2h-3ah^2-h^3+2+a^3-2}{h}\\\\\text{combine like terms}$

$=\dfrac{(-a^3+a^3)-3a^2h-3ah^2-h^3+(2-2)}{h}\\\\=\dfrac{-3a^2h-3ah^2-h^3}{h}\\\\=\dfrac{h(-3a^2-3ah-h^2)}{h}\\\\=-3a^2-3ah-h^2$

6 0

2 years ago

The length of a rectangle is twice the width. The area is 162 yd? Find the length and the width.

Tresset [83]

Answer:

length = 2x = 2(9) = 18 yds

Step-by-step explanation:

Let width = x

Let length = 2x

Area = 162 yd2

length × width = Area

2x(x) = 162

2x2 = 162

Divide by 2 on both sides of equation.

x2 = 81

Square-root both sides of equation to undo the exponent.

x = √(81)

x = 9

Substitute this x value into the initial variables.

width = x = 9 yds

length = 2x = 2(9) = 18 yds

6 0

2 years ago

Anit [1.1K]

Answer:

-1/3

Step-by-step explanation:

(-2, 5) and (1, 4)

Slope:

m=(y2-y1)/(x2-x1)

m=(4-5)/(1+2)

m=(-1)/3

m= -1/3

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2 years ago

What is the slope of the parallel line to 6x + 3y=-6

Artyom0805 [142]

Answer:

-2

Step-by-step explanation:

6x+3y=-6

-6-6x=3y

divided by 3

-2-2x=y

6 0

2 years ago