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MaRussiya [10]
3 years ago
13

Find an equivalent ratio.7:13​

Mathematics
2 answers:
soldi70 [24.7K]3 years ago
6 0

Answer:

7/13 = (7 × 2)/(13 × 2) = 14/26 = 14 : 26 is one equivalent ratio

Step-by-step explanation:

I hope this helps

Sliva [168]3 years ago
5 0

Answer:

7/20

Step-by-step explanation:

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PLZ SHOW ALL WORK
lara31 [8.8K]

Part I
We have the size of the sheet of cardboard and we'll use the variable "x" to represent the length of the cuts. For any given cut, the available distance is reduced by twice the length of the cut. So we can create the following equations for length, width, and height.
width:  w = 12 - 2x
length: l = 18 - 2x
height: h = x

Part II
v = l * w * h
v = (18 - 2x)(12 - 2x)x
v = (216 - 36x - 24x + 4x^2)x
v = (216 - 60x + 4x^2)x
v = 216x - 60x^2 + 4x^3
v = 4x^3 - 60x^2 + 216x

Part III
The length of the cut has to be greater than 0 and less than half the length of the smallest dimension of the cardboard (after all, there has to be something left over after cutting out the corners). So 0 < x < 6

Let's try to figure out an x that gives a volume of 224 in^3. Since this is high school math, it's unlikely that you've been taught how to handle cubic equations, so let's instead look at integer values of x. If we use a value of 1, we get a volume of:
v = 4x^3 - 60x^2 + 216x
v = 4*1^3 - 60*1^2 + 216*1
v = 4*1 - 60*1 + 216
v = 4 - 60 + 216
v = 160

Too small, so let's try 2.
v = 4x^3 - 60x^2 + 216x
v = 4*2^3 - 60*2^2 + 216*2
v = 4*8 - 60*4 + 216*2
v = 32 - 240 + 432
v = 224

And that's the desired volume.
So let's choose a value of x=2.
Reason?
It meets the inequality of 0 < x < 6 and it also gives the desired volume of 224 cubic inches.
3 0
3 years ago
Find the diffrence between temperature -30 degrees c and 70 degrees c?
andreyandreev [35.5K]
One is colder than the other. 
     Hope this helps :)
4 0
3 years ago
Read 2 more answers
In Arizona, a minimum temperature of -40°F was recorded at Hawley Lake 1971. A maximum recorded
ddd [48]
I Believe it would be 53 because it’s asking what is the difference and they difference would have to be 53 your going from a negative to a positive
3 0
2 years ago
I NEED HELP IM IN CLASS RN PLEASEE HELP! WILL GIVE BRIANLIEST!
fgiga [73]

Answer:

y=x+12

Step-by-step explanation:

Well the slope is -4/-4 =1

We plug it into the formula, y=mx+b, but m=1

So it is y=1x+b

We know the points, so we plug y and x in which is:

-4=-4*4+b

-4=-16+b

b=12

So the point slope form of that is y=x+12

4 0
3 years ago
X + y = 3
hoa [83]
Answer: x=2
step by step explanation:
6 0
3 years ago
Read 2 more answers
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