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LenaWriter [7]
3 years ago
12

Plz help me I have to turn this in

Mathematics
1 answer:
Andreas93 [3]3 years ago
3 0
A) 4/7 * 3/5=12/35
b)12/35 / 4/7= 3/5

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Kim is 5 years older than her brother Jack. If the sum of their ages is 21, find each of their ages.
yarga [219]

9514 1404 393

Answer:

  • Kim is 13
  • Jack is 8

Step-by-step explanation:

Let k represent Kim's age. Then Jack's age is k-5 and the total of their ages is ...

  k + (k -5) = 21

  2k = 26 . . . . . . . add 5, collect terms

  k = 13 . . . . . . . . . divide by 2; Kim's age

  k -5 = 8 . . . . . . . Jack's age

Kim is 13; Jack is 8.

7 0
3 years ago
If you can buy 4 containers of pudding for $4.20 how much can you buy for $9.45 math problem
lyudmila [28]

Answer:

9

Step-by-step explanation:

4.20 / 4 = 1.05

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8 0
2 years ago
Recently, Frank took a one-hundred question aptitude test where each correct answer scored 5 points, each incorrect answer score
Lyrx [107]
Im guessing he answered 30 correct, let me know if im correct
3 0
3 years ago
Read 2 more answers
A container ship left port last week caring some good weighing a total of 125,890 tons today I stopped in another port to unload
11Alexandr11 [23.1K]

Answer:

Step-by-step explanation:

You need to be specific.  Did the weight decrease by 60 tons or 60 pounds?  I assume tons, but in math, you can't assume.

This problem seems overly simple, so I am wondering if some information is missing.  With the given information and assuming the decrease was in fact 60 tons, you would have:

125,890 - 60 = 125,830 tons

8 0
3 years ago
20% of what number is 90?
ehidna [41]
90 = (20)(x)
so you have to solve for x
90/.20 =450
answer is 450
8 0
3 years ago
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