george6871
18.12.2019 •
Mathematics
Agym is selling monthly membership for $30 each and reusable water bottles for $7 each. the gym needs to make $1050 by the end of the month
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Ответ:
30x + 7y = 1050when x = 28
30(28) + 7y = 1050
840 + 7y = 1050
7y = 1050 - 840
7y = 210
y = 210/7
y = 30so he would have to sell 30 water bottles
Ответ:
a) P = N 150000
R = 5%
T = 5 years
Plug in the values P,R & T in the formula
I = PRT
1=150000 x 5/100 x 4
= 1500 x 5 x 4
I = N 30000
b) I = N 16100
R = 7%
T = 5 years
PRT= I
P x 7/100 x 5=16100
P= 16100 x 100/7x5
P= N 46000