HELP MEEE!!! i don’t know the answer to this
1 answer:
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Answer:
Number of pens and pencils sold are 490 and 510 respectively.
Step-by-step explanation:
Let, number of pens = x and the number of pencils = y.
It is given that,
Cost of one pen = 10 cents = 0.1 dollar
Cost of one pencil = 5 cents = 0.05 dollar
As, the total number of writing utensils sold are 100. So, we have,
Also, the total sales is $74.50 gives,
Thus, the system of equations is,
x + y = 1000 .................................... (1)
0.1x + 0.05y = 74.50 .....................(2)
Multiply (1) by 0.1 and subtract both the equations, we get,
0.05y = 25.5 i.e. y= 510
So, x= 1000- 510 i.e. x= 490.
So, the number of pens and pencils sold are 490 and 510 respectively.
Take the .5 of the 17.5 and convert it to a fractin.
we know .5 is equal to 50% or 1/2
now we have a mixed number
in order to convert it into an improper fraction you need to multiply the whole number by the denominator and then add the numerator all while keeping the denominator constant.
so
we know .5 is equal to 50% or 1/2
now we have a mixed number
in order to convert it into an improper fraction you need to multiply the whole number by the denominator and then add the numerator all while keeping the denominator constant.
so