Answer:
Step-by-step explanation:
Use proportions to solve.
Corresponding sides have same ratio.
<u>Question 1</u>
- (6x + 3)/17 = (8x - 1)/21
- 21(6x + 3) = 17(8x - 1)
- 126x + 63 = 136x - 17
- 10x = 80
- x = 8
<u>Question 2</u>
- (x + 8)/21 = 32/28
- x + 8 = 21*8/7
- x + 8 = 24
- x = 24 - 8
- x = 16
Answer:
1.20%
Step-by-step explanation:
1.50-30=20
2.15000
Answer:
He ate 40% of it
Step-by-step explanation:
20/50 is 2/5, which is basically 4/10 therefore equaling 40%
Answer:
600
Step-by-step explanation:
30×20( its like multiplying 3×2 and adding two zeros behind the answer) 6 + two zeros = 600
Answer:
Step-by-step explanation:
cows chickens legs animals
1 11 26 (1×4+11×2=4+22=26) 1+11=12
2 9 26 (2×4+9×2=8+18=26) 2+9=11
3 7 26 (3×4+7×2=12+14=26) 3+7=10
4 5 26 (4×4+5×2=16+10=26) 4+5=9
5 3 26 (5×4+3×2=20+6=26) 5+3=8
6 1 26 (6×4+1×2=24+2=26) 6+1=7
1. minimum number of animals=7
2. chickens=3
3. cows=4
chickens=5
