a boy is 24 years younger than his father. In 2 years time the sun of their ages will be 40. Find the present ages of father and son

Answers

Answer 1

Answer: ooh fun

x=boy
y=father
x+24=y
(x+2)+(y+2)=40
subsitute x+24=y into equation
x+2+x+24+2=40
add like terms
2x+28=40
subtract 28 from both sides
2x=40
divide both sides by 2
x=son now=20
father=son+24
father=20+24=44

father=44
son=20

Answer 2

Answer: Let the age of the boy be x.
Therefore the age of the father = x + 24. (The boy is 24 years younger implies that
   his father is older by 24 years).

In 2 years time:
The boy will be = (x +2).
The father will be (x +24 +2) = (x + 26).

Sum of their ages = 40.
Therefore (x+2) + (x + 26) = 40.
   x + x + 2 + 26 = 40
      2x + 28 = 40
      2x = 40 -28
   2x = 12.
   x = 12/2 = 6. x =6.
Present ages = x , x +24. = 6, (6 +24) = 6, 30.
Boy = 6 years old.
Father = 30 years old.
Cheers.

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Is1/10 and 3/33 epuivalant

Answers

3/33 can be reduced to 1/11 by dividing by 3 on the top and bottom.
1/11 is not equal to 1/10. Although they have the same numerator or number on top, 1, they don't have the same number in the bottom.
So they are not equivalent.
Hope this helps.

No,

3/33 equals 1/11 and 1/11 is smaller than 1/10. so they are not equal.

At Ashley's Nursery, there are 12 rows of trees. In each row, there are 21 pine trees and 7 spruce trees. How many of each type of tree are there in all?

Answers

So what you have to do is:

To find the number of pine trees:
12 (because there are 12 rows) × 21 (as there are 21 pine trees in each row) , so
12 × 21 = 252
There are 252 pine trees

You then repeat this process to find out how many spruce trees there are
So:
12 (the amount of rows) × 7 (there are 7 spruce trees in each row)
12 × 7 = 84

Number of pine trees = 252
Number of spruce trees = 84

-5⁄2 a + 5 = 25 find a

Answers

Answer:

sub 5 25 - 5 = 20

-5/2a=20

mult 2 by each side to get rid of fraction

-5a=40

divide -5 from 40

a=-8

Answer:

The answer is 8

Step-by-step explanation:

-5/2 x 8= 20 and if you add 5 it is 25.

The number of pages that Allen, Kevin, Roneisha, and Ben can read in a day is shown below. Allen read 15% of his 56-page book.
Kevin read 12% of his 64-page book.
Roneisha read 16% of his 42-page book.
Ben read 10% of his 72-page book.

Who can read the greatest number of pages in a day?

Answers

Allen read the greatest number of pages in a day.

What is the percentage?

The percentage is a ratio that can be expressed as a fraction of 100.

Allen read 15% of his 56-page book, therefore, the number of pages he read is:

15 % of 56

= 15 × 56 /100

= 8.4

Kevin read 12% of his 64-page book, therefore, the number of pages he read is:

12% of 64

=12 ×64/ 100

= 7.68

Roneisha read 16% of his 42-page book, therefore, the number of pages she read is:

16% of 42

= 16×42/100

= 6.72

Ben read 10% of his 72-page book, therefore, the number of pages he read is:

10 % of 72

= 10×72/100

= 7.2

Note that Allen read the greatest number of pages in a day.

Learn more on percentages here:

brainly.com/question/14979505

#SPJ3

Allen : 0.15(56) = 8.4 pgs per day
Kevin : 0.12(64) = 7.68 pgs per day
Roneisha : 0.16(42) = 6.72 pgs per day
Ben : 0.10(72) = 7.2 pgs per day

Allen can read the greatest number of pages per day

What is the constant rate of change of a submarine diving every 300 feet in 2 minutes

Answers

diving is down so it's negative
-300
time is 2 minutes
normally, it's amount of work divided by 1 unit of time so
-300/2=-150/1
-150 feet per minute

Find the number of liters in 12.8 gal of gasoline. Round to the nearest hundredths

Answers

Answer:

48.45

Step-by-step explanation:

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