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Schach [20]
3 years ago
12

Marta and Kim are sisters. Five years ago Kim's age was twice as great as martas age. If Marta is no m years old, what expressio

n represents Kim's age now?
Mathematics
1 answer:
Hitman42 [59]3 years ago
5 0

Answer:

y = 2m-5

Kim's age now is y = 2m-5

Step-by-step explanation:

Let m represent martas age now and y represent Kim's age now

Given;

Five years ago Kim's age was twice as great as martas age.

(y-5) = 2(m-5)

Solving for y;

y-5 = 2m-10

y = 2m-10+5

y = 2m-5

Kim's age now is y = 2m-5

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− 1/2​ (−3y+10) how do i work it out?
ehidna [41]

Answer:

3/2y -5

Step-by-step explanation:

− 1/2​ (−3y+10)

Distribute

-1/2 * -3y + -1/2(10)

3/2y -5

3 0
3 years ago
Whats the answer to these? (These are called Proper fractions.)
AnnZ [28]

Answer:

1: 7/10

2: 3/10

3: 4/8 (2/4 or 1/2 if you need to simplify it)

Step-by-step explanation:

1: Convert 2/5 to tenths by multiplying the denominator and numerator by two. 3/10 plus 4/10 is 7/10

2: Convert 4/5 and 1/2 to tenths.

4/5 is going to be 8/10, 1/2 is going to be 5/10.

Subtract 5/10 from 8/10 to get 3/10

3: Convert 1/4 to eighths to get 2/8. Then add 2/8 and 2/8 to get 4/8.

7 0
3 years ago
Read 2 more answers
Jayla is a salesperson. She sold a guitar for $96 and earned 20% commission. How much
dexar [7]

Answer:

$115.20

Step-by-step explanation:

Hi! We need to find 1% of 96 to multiply by 20.

96 / 100 = .96

Now we multiply by 20.

20 x .96 = 19.2.

Now, we add 19.2 to what she earned in the first place (96).

19.2 + 96 = 115.20

Hope this helps!

4 0
3 years ago
3/5 of a number is 60. what is 45% of the number
lisabon 2012 [21]
The present of 45 Is 45.0 present
4 0
3 years ago
NEED HELP ASAP NEED TO GET THESE DONE TODAY!
Archy [21]

Answer:

Y=6, AB=24

Step-by-step explanation:

A PARALLELOGRAM HAS 2 PAIRS OF EQUAL SIDES

YOUR EQUATION IS:

Y+18=4Y

3Y=18

Y=6

CHECK: 6+18=4*6

24=24

7 0
3 years ago
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