Andrew has saved 36 number of R5 coins, 90 number of R2 coins and 126 number of R1 coins.
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
The coins are in the ratio 2:5:7 respectively. If he has a R90 in R2 coins. If x represent the total coins, hence:
(5/14) * x = 90
x = 252
Number of R5 coins = (2/14) * 252 = 36
Number of R1 coins = (7/14) * 252 = 126
Andrew has saved 36 number of R5 coins, 90 number of R2 coins and 126 number of R1 coins,
find out more on equation at: brainly.com/question/2972832
This is a simple multiplication question.
4.8 x 3.7=17.76
Tripping ran 17.76 laps.
Check: 17/76/4.8=3.7
(17,000-2,500)/5=14,500/5=$2,900 is the annual depreation.
17,000-2,900*3
17,000-8,700=$8,300 value after 3 years.
