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OLga [1]
3 years ago
7

the sum of the ages of chukwu and Caroline is 45 years if the difference in their age is 3 years find the age of chukwu (chukwu

is older than Caroline)​
Mathematics
1 answer:
sladkih [1.3K]3 years ago
6 0

Step-by-step explanation:

let,the sum of the ages of chukwu & Caroline be X & Y.

now,

X+y=45

X-y=3

(+) (+) (-)

__________

2x=42

or,X=42/2

or,X=21

putting the value of X,

X+y=45

or, 21+y=45

or,y=45-21

or,y=24

therefore,X=21

y=24

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Please help me on this problem! ​
USPshnik [31]

There is no solution since the lines are parallel. (See attached graph)

<h2><u><em>Hope this helps!</em></u></h2>

6 0
3 years ago
Read 2 more answers
Diana baked 36 cookies with 4 scoops of flour. How many scoops of flour does Diana need in order to bake 45 cookies? Assume the
max2010maxim [7]

Answer:

5 scoops of flour

Step-by-step explanation:

36 divided by 4 is 9

9 x 5 is 45

5 0
3 years ago
hot dogs come in packs of 12 and hot dog buns come in packs of 9. What is the smallest total number of hot dogs that can be purc
sukhopar [10]
3 because 3 packs of 12 is 36 and that is the same product as 4 packs of 9
4 0
3 years ago
Using the chart "Amount of $1 at Compound Interest" from previous reading section "More Compound Interest", find the total amoun
vitfil [10]

Answer:

Step-by-step explanation:

the formula used for any interest other then continuously is

A=P(1+r/n)^nt

so... r=rate in decimal form ONLY n=how often interest is paid t=time passed

A=3000(1+.08/1)^(1)(5) = annually

A=3000(1+.08/2)^(2)(5)

A=3000(1+.08/4)^(4)(5)

use you calculator to get the answer

it is good practice to use your calculator now because soon you will be using it for population questions and those need to be entered very carefully.

7 0
3 years ago
The number of children at the library was 3 times the number adults. The total number of people at the library was 48. How many
Rufina [12.5K]

Answer:

D 36

Step-by-step explanation:

<em>Write the information algebraically</em>

c = 3a

c + a = 48

c = children, a = adults

<em>In the second sentence (in bold), we can replace c with 3a</em>

c + a = 48 → 3a + a = 48

<em>Simplify</em>

3a + a = 48 → 4a = 48 → a = 12 (divide both sides by 4)

<em>We can then substitute or plug in a = 12 into the original equation:</em>

c + a = 48 → c + 12 = 48 → c = 36 (subtract 12 from both sides)

<h3>There are 36 children</h3>
7 0
3 years ago
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