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Question 6:
Brenda starts
a slimminmg porogram. The first month she loses 10%
of her weight. The second month she loses a further
8lbs The third month she loses 7lbs. Her weight
after 3 months was 165lbs. What weight was she when
she started the slimming program?
Let's write down the
facts.
Starting weight = 'y'
(Remember
the one we don't know anything about is the one we
call 'y'.)
Weight after one month = y -
10%y
Weight after second month =
(y - 10%y) - 8
Weight after third month = (y
- 10%y) - 8 - 7 = 165 lbs
Question -
What weight was Brenda when she started the
program?
The equation is:
165 = (y - 10%y) - 8 -
7
165 = 90%y - 15
165 + 15 = 90%y
180 = 90%y
180 = 90y ÷
100
18000 = 90y
y =
Click on the answer below you
believe is the correct one
Answer to
question 4:
'A' -
Brenda
weight at the start was 210 lbs
'B'
-
Brenda
weight at the start was 220 lbs
'C' -
Brenda
weight at the start was 190 lbs
'D'
-
Brenda
weight at the start was 200 lbs
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