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jek_recluse [69]
3 years ago
5

PLS HELP ME ASAP FOR 4, 5, and 6 (SHOW WORK!) + LOTS OF POINTS!

Mathematics
2 answers:
Wewaii [24]3 years ago
7 0
4. D does NOT form a proportion
5. To get the answer you would multiply 45*8=360 then 360/18=20 so n=20

6. same as number 2
multiply 1.2*.6= .72 then .72/1.6= .45 so w=.45
Ira Lisetskai [31]3 years ago
7 0
4. (a) 8/14 = 4/7
         20/35 = 4/7
    (b) 6/10 = 3/5
         15/25 = 3/5
    (c) 9/4
         36/16 = 9/4
    (d) 12/15 = 4/5
          30/40 = 3/4
The answer is D.

5. 8/18 = n/45
   18 x n = 45 x 8
   18 x n = 360
    n = 360/18
       = 20
The answer is C.

6. 0.6/1.6 = w/1.2
    0.6 x 1.2 = w x 1.6
    0.72 = w x 1.6
    0.72/1.6 = w
    w = 0.45
The answer is A.
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4 0
2 years ago
I NEED HELP ASAP:
olga55 [171]
First, you have to do some factorization

60 = {1,2,3,4,5,6,10,12,15,20,30,60}
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the GCF is 12

now we find the number that you multiply by 12 to get 60 and another number to get 72.

12 x 5 = 60
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now we notice if you add 60 + 72, we can now tell that it also equals (12)(5)+(12)(6)= 12(5+6)
6 0
3 years ago
PLEASE HELP FOR 13 POINTS AND BRAINLIEST! ;)
inessss [21]

Answer:

No because even though you aren't actually picking the exact people yo do and don't wanna survey but your only surveying those who buy hot lunches when in order to get accurate data, you have to survey everyone who bought hot and cold lunches from the school cafeteria.

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3 years ago
How can you find the value of n in this equation?
lesya692 [45]
The answer would be n=37 because…
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subtract 40 on both sides, cancelling it out on the left side and 77-40=37 so:
n=37
4 0
3 years ago
Read 2 more answers
What is the value of the equation -2/3x + 9 = 4/3 x -3?​
MArishka [77]

Answer:

x = 6

Step-by-step explanation:

\frac{-2}{3}x+9=\frac{4}{3}x-3\\\\\frac{-2}{3}x-\frac{4}{3}=-3-9\\\\\frac{-2-4}{3}x= - 12\\\\\frac{-6}{3}x = -12\\\\ -2x  -12\\\\x = \frac{-12}{-2}\\\\x = 6

3 0
2 years ago
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