The answer above isn't right- lol.
15% of the animals in the zoo are birds.
[45/300 is .15, or 15%.]
Step 1. Add 72 to both sides
5y = 7 + 5x + 72
Step 2. Simplify 7 + 5x + 72 to 5x + 79
5y = 5x + 79
Step 3. Divide both sides by 5
y = 5x + 79/5
Decimal: .32
fraction: 32/100 which, when reduced, is 8/25
Answer:
<em>240.</em>
Step-by-step explanation:
70+130+40=240.