Answer:
$34
Step-by-step explanation:
I'd work backwards.
For the third book, she paid all her remaining money. The problem says she paid "1/2 her leftover money + $3". This means that: (let m = money used to buy book 3)
m = 1/2m + 3
1/2m = 3
m = 6
For the second book: (let n = money before book 2)
n - m (money left after book 2) = 1/2n + 2
1/2n +2 is money used up for book, which is the same as n-m.
n = 1/2n + 2 + m
1/2n = 2 + m = 2 + 6
1/2n =8
n = 16
For the first book, she spent 1/2 her money + 1. If o = money before book 1 (or the whole allowance):
o - n = 1/2o + 1
o = 1/2o + n + 1 = 1/2o + 16 + 1
1/2o = 17
o = 34
Check!
Spent 17 (half 34) + 1 on book 1
16 left
Spent 8 (half 16) +2 on book 2
6 left
Spent 3 (half 6) + 3 on book 3
0 left
Answer:
X = 48
Step-by-step explanation:
<em>to </em><em>find </em><em>X </em><em>we </em><em>must </em><em>first </em><em>make </em><em>it </em><em>the </em><em>subject </em><em>of</em><em> </em><em>the </em><em>formula</em><em>,</em><em> </em><em>so</em><em>,</em><em> </em><em>X </em><em>=</em><em> </em><em>1</em><em>6</em><em> </em><em>×</em><em> </em><em>3</em><em> </em><em>=</em><em> </em><em>4</em><em>8</em>
<em>X </em><em>=</em><em> </em><em>4</em><em>8</em><em>.</em>
<em>Hope </em><em>this </em><em>helps </em><em>you,</em><em> </em><em>please</em><em> mark</em><em> me</em><em> as</em><em> brainliest</em><em>!</em>
It might just be old pal :)
Answer:
It is the 1st answer.
Step-by-step explanation:
Three over y minus five equals x times y plus seven??
