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Mathematics 4 Online
Comerpickles:

Please help http://prntscr.com/hykamu http://prntscr.com/hykay5

Comerpickles:

@Vocaloid

Vocaloid:

|dw:1515598598034:dw|

Vocaloid:

|dw:1515598603363:dw|

Vocaloid:

so C is the only possibility

Comerpickles:

Thanks, can you help me with 5 more?

Vocaloid:

sure

Comerpickles:

Okay, I can solve this, but I need it set up for me. I'm terrible at knowing how to set it up http://prntscr.com/hykhi4

Vocaloid:

you can pick two corresponding sets of side to set up a ratio

Vocaloid:

|dw:1515599004928:dw|

Vocaloid:

|dw:1515599011193:dw|

Vocaloid:

so if 12/3 = x/4 what is x?

Comerpickles:

x=16

Vocaloid:

good

Comerpickles:

Thats the answer?

Comerpickles:

It is

Comerpickles:

http://prntscr.com/hyknll

Vocaloid:

|dw:1515599554378:dw|

Vocaloid:

|dw:1515599559232:dw|

Vocaloid:

side 1/side 2 = side 4/side 3 9/(2x+4) = 6/(x+4) first step solve for x *** however do not stop here, there is more more step because we want the value of Ed not x

Comerpickles:

x=4

Vocaloid:

good now, ED = x + 4 so simply add 4 to that value to get 8 = your answer

Comerpickles:

How would I set it up? ED=4+4?

Vocaloid:

yup since ED = x + 4 and x = 4 you just replace the x to get 4 + 4

Comerpickles:

So ED = 8

Vocaloid:

yes

Comerpickles:

http://prntscr.com/hykurt

Vocaloid:

since x is on the hypotenuse we will include the hypotenuse in our ratios since we need to solve for x big hypotenuse/small hypotenuse = big leg/small leg

Vocaloid:

if you feel comfortable try to set up a ratio using this information, I'll help you if you get stuck

Comerpickles:

I have no clue how to set up the ratio XD

Vocaloid:

the hypotenuse is the biggest side of a right triangle so bigger triangle hypotenuse/smaller triangle hypotenuse = ?

Comerpickles:

96:25?

Vocaloid:

|dw:1515600882690:dw|

Vocaloid:

|dw:1515600888552:dw|

Vocaloid:

so big hypotenuse/small hypotenuse = (6x+28)/25

Vocaloid:

now, we pick two corresponding legs from the big triangle and the small triangle

Vocaloid:

|dw:1515600938645:dw|

Vocaloid:

giving us: big leg/small leg = 28/7 so (6x+28)/25 = 28/7 and then solve for x

Comerpickles:

Oh x=12

Vocaloid:

yup so x = 12 = your answer

Comerpickles:

http://prntscr.com/hyl5ci

Vocaloid:

using a similar principle from before: big triangle leg/small triangle leg = big triangle leg/small triangle leg x/5 = 5/4 solve for x

Comerpickles:

x=25/4

Vocaloid:

good now convert that to a decimal

Comerpickles:

0.16

Comerpickles:

http://prntscr.com/hyl75r

Vocaloid:

be careful with the division when you are converting from a fraction to a decimal it is numerator divided by denominator so 25 divided by 4 = ?

Comerpickles:

6.25

Vocaloid:

good so 6.25 is the answer for that other flag one

Vocaloid:

for the hockey player problem we use the same principle

Vocaloid:

big leg/small leg = big leg/small leg x/8 = 12/9 solve for x

Comerpickles:

32/3

Comerpickles:

Make it a decimal and round to the nearest hundreth. Let me see if I can do this. If not, then I can ask for help XD

Comerpickles:

10

Vocaloid:

hundreth means 2 decimal places

Comerpickles:

Oh, right

Comerpickles:

10.66

Vocaloid:

I'd round that up to 10.67 but yeah you have the right idea

Comerpickles:

Okay, thanks for your help

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