So from 100% you increased it by 30% to become 520
130%=540
percent means parts out of 100
130%=130/100=1.3
1.3 of whole=520
divide both sides by 1.3
whole=400
the number was 400
Answer:
3/4
Step-by-step explanation:
f(x)=3•2^x
Let x = -2
f(-2)=3•2^-2
Exponents first ( We know a^-b = 1/ a^b)
f(-2)=3• 1/2^2
=3 * 1/4
= 3/4
The answer to number 3 is 43.
Answer:
.
Step-by-step explanation:
Answer:
<h3>numbers of
Ostrich he keep =
725</h3>
<u>Step-by-step explanation:</u>
- Area of field = 30 × 155 + 90 × 45
- Area of field = 4650 + 4050
- Area of field = 8700 m²
numbers of Ostrich = 8700 ÷ 12
numbers of Ostrich = 725
