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3 years ago

List 3 equivalent ratios of 5/2

2 answers:

7 0

10/4
15/6
20/8

Think about multiplying 5 and 2 with the same number. For 10/4 you multiply each 5/2 both by 2 and etc..

jek_recluse [69]3 years ago

6 0

3 equivalent ratios or 5/2
10 /4
20/8
30/12

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Mila [183]

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Step-by-step explanation:

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2 years ago

Robin donated bags of grain that each weighed 403 pounds to the local food shelf. If the total weight of the grain was 160 pound

Alexxx [7]

Well.. 160 x 3 = 480. So he would've had to give only 2 bags. But he would've given a fraction of a bag, but if you're only talking whole numbers, then the answer is 2. If you're talking fractions, then the answer is 2.51875.

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3 years ago

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Which inequality can be used to represent this problem? (HELP ASAP, IM TIMED)

Nadya [2.5K]

Propane costs $3.50 per hundred pounds,

and there is a $6 monthly delivery fee.

A family has budgeted $85 for their propane this month.

Let 'x' hundreds of pounds can the family use without going over budget

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So the cost for Propane = $ 3.5x

One month delivery fee $6

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8 0

3 years ago

Solve the system of equations y= 3/2 - 1, -x+ y =-3

kaheart [24]

Answer:

(x, y) = ( 1/2, -3 )

Step-by-step explanation:

y = -3

3/2 - 1 - x + y = - 3

3/2 - 1 - x - 3 = - 3

x = 1/2

solution : (x , y ) = ( 1/2, -3)

here we are gonna see why is that answer :

-3 = 3/2 -1 - 1/2 - 3 = -3

-3 = -3 = -3

i hope this helps

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3 years ago

The graph of a quadratic function passes through the points (-1,0), (-2,0), and (0,2). Write the quadratic function in general f

ddd [48]

Answer:

$f(x)=x^2+3x+2$

Step-by-step explanation:

step 1

we have the points

(-1,0), (-2,0), and (0,2)

Plot the points

using a graphing tool

see the attached figure

The graph of a quadratic function must be a vertical parabola open upward

The vertex is a minimum

The quadratic function in general form is equal to

$f(x)=ax^2+bx+c$

Substitute the value of x and the value of y of each given ordered pair in the general equation and solve for a,b and c

(0,2)

For x=0, y=2

substitute

$2=a(0)^2+b(0)+c$

$c=2$

(-1,0)

For x=-1, y=0

substitute

$0=a(-1)^2+b(-1)+2$

$0=a-b+2$ ----> $a=b-2$ ----> equation A

(-2,0)

For x=-2, y=0

substitute

$0=a(-2)^2+b(-2)+2$

$0=4a-2b+2$ ----> equation B

we have the system

$a=b-2$ ----> equation A

$0=4a-2b+2$ ----> equation B

substitute equation A in equation B

$0=4(b-2)-2b+2$

solve for b

$0=4b-8-2b+2$

$2b=6$

$b=3$

Find the value of a

$a=3-2=1$

therefore

The quadratic function in general form is equal to

$f(x)=x^2+3x+2$

see the attached figure N 2 to better understand the problem

7 0

3 years ago