Answer:
225 + 63n for n- a natural number,
set 512=225+63n to find total number of weeks
63=21*3
use n=4 to solve the amount saved in 4 weeks
they wont 60*4=240, 240+12, 252+225=477
how much are the saving a day
what do they need to put up to have enough in 4 weeks
how much a day do the need to save to go in 1 week
etc
Step-by-step explanation:
Answer:
The integers 1, 2, 3, 4, 5, 6, 7, 8, and 9 are always significant.
Zeros in between numbers are always significant.
Step-by-step explanation:
There are three rules by which the number of significant figures can be determined:
- The digits which are other than the zero are said to be significant figures.
- Any zero which is present between two significant figure is said to be significant.
- The zero which appears in the right of the decimal portion in the end is significant. The zero which comes after the decimal is not significant.
Answer: 18 - 20 = -2
Step-by-step explanation:
Answer:
The answer is 12 times 23
<u>Adjacent angles on a straight line = 180:</u>
x + x + 48 = 180
2x + 48 = 180
2x = 132
x = 66°
<u>Sum of angles in a triangle = 180:</u>
z = 180 - 66 - 90
z = 24°
Answer: z = 24°
