A look up what are composite numbers look at images and it will show you
Answer:
1/7^3 (One over seven thirds)
Step-by-step explanation:
X = pencils, y = pens
8x + 6y = 8.50
4x + 4y = 5.....multiply by -2
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8x + 6y = 8.50
-8x - 8y = -10 (result of multiplying by -2)
-----------------add
-2y = - 1.50
y = -1.50 / -2
y = 0.75 <=== pens cost 0.75
4x + 4y = 5
4x + 4(0.75) = 5
4x + 3 = 5
4x = 5 - 3
4x = 2
x = 2/4
x = 0.50 <== pencils cost 0.50
Consecutive integers = in this situation double-digit whole numbers
So as there are 3 of them let's say 2 are 11 because that would be the highest consecutive number so 11+11= 22 and 48-22=26 so the three have the ages of 11,11,26 and the oldest would be 26 ;)
The fraction is written as 3/4.
If you divide 3 by 4 you will get the decimal.
