your number was 12.
let x be the number:
(x * 2) + 50 = 74
To solve for x, we need to reverse what was done to get the answer of 74.
Since 50 was added to arrive at 74, we deduct 50 from 74.
74 - 50 = 24
We then divide 24 by 2 to get the original number.
24/2 = 12.
Your number was 12.
To check:
(12 * 2) + 50 = 74
24 + 50 = 74
74 = 74
Answer:
D
Step-by-step explanation:
-4.9 x 3^2 + 22 x 3 + 5.5 = 27.4
Answer:
A) 80
Step-by-step explanation:
b/4-23=-3
b/4=-3+23
b/4=20
b=20*4
b=80
Answer:1. B 2. D
Step-by-step explanation:
Answer:
(a)
1 sig: 0.005
2 sig: 0.0048
3 sig: 0.00482
(b)
1 sig: 50
2 sig: 50.
3 sig: 50.0
(c)
1 sig: 0.0010
2 sig: 0.00098
3 sig: 0.000981
Step-by-step explanation:
Significant Figures Rules:
- Any non-zero digit is significant.
- Any trailing zeros after the decimal is significant.
- Any zeros between 2 significant digits are significant.
- Zeroes before significant numbers in the decimal place are NOT significant; they are placeholders.
(a)
0.004816 - the zeros are placeholders, so they do not count as sig figs.
(b)
50.00168 - the zeros are between 2 significant figures, so they do count as sig figs.
(c)
0.0009812 - the zeros are placeholders, so they do not count as sig figs
