Answer:
10^5
Step-by-step explanation:
100,000
= 10 x 10 x 10 x 10 x 10
= 10^5
Let x=grams of 70% alloy:
0.70x+16×0.20=0.30(x+16)
0.70x=0.30x+4.8-3.2
0.40x=1.6
x=1.6/0.4=16/4=4g
4 grams of 70% alloy are needed.
Answer:
x = -6
Step-by-step explanation:
-5x+1=31
- Subtract 1 from both sides of the equation.
-5x = 30
x = -6
Answer: A [16.4 cm]
Step-by-step explanation:
add 4.5 times 2 + 3.7 times 2
