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Reil [10]
3 years ago
8

an older person is three years older than seven times the age of a younger person the sum of their ages is 43 find their ages

Mathematics
1 answer:
ruslelena [56]3 years ago
6 0

Step-by-step explanation:

no thanksssssssssssssssssss

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X is directly proportional to the cube of y <br> when x=32 y=0.4 <br> find the value of y when x=256
Stella [2.4K]

Answer: 0.512

Step-by-step explanation:

256/32=8

8*(0.4)^3=

8*0.064=0.512

y=0.512

4 0
2 years ago
A car is purchased for 28,000 after each year, the resale value decreased by 25% what will be the resale value be after 3 years?
alisha [4.7K]

Answer:

11,812.5

Step-by-step explanation:

25% = 0.25

(YEAR ONE)

28,000*0.25 -- > 21,000

↓ (why?)

28,000 * 0.25 = 7,000

28,000 - 7,000 = 21,000

(YEAR TWO)

21,000 * 0.25 -- > 15,750

↓ (why?)

21,000 * 0.25 = 5250

21,000 - 5,250 = 15,750

(YEAR THREE)

15,750 * 0.25 -- > 11,812.5\\

↓ (why?)

15,750 * 0.25 = 3,937.5\\15,750 - 3,937.5 = 11,812.5

Answer = 11, 812.5

8 0
2 years ago
Brain has 3 basketball cards and 5 baseball cards. What fraction of Brain’s cards are baseball cards?
Lyrx [107]

Total cards = 3 + 5 = 8 cards.

5 are baseball, the fraction is number of baseball cards over the total number of cards = 5/8


8 0
4 years ago
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(18 - ab) + 4b (if a = -2 and b = -5)
ki77a [65]
18+2•(-5)-20
18-10-20
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4 years ago
What is the value of x? Idk plz help me
FrozenT [24]
The answer is 55 degrees
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4 years ago
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