hi
u0 = 64 with u(n+1) = un *0.75
u3 = 64 *0.75^3 = 27
sum is : 64 * ( 0.75^4 -1) / 0.75-1 = 175
manual proof : 64 + 48+36+27 = 175
Answer:
Step-by-step explanation 10 + 2.50d = 850
David starts with $10 and each day he earns $2.50. The d represents a variable and can be any number.
To find d you must solve the equation.
10 + 2.50d = 850
2.50d = 840 (subtract 10 from 850)
d = 336 (divide 840 by 2.50)
It will take David 336 days to save $850.
19: 1, 19
21: 1, 3, 7, 21
23: 1, 23
25: 1, 5, 25
The largest area would be a square with sides 360/4, or 90 yds. each. The area would be 90x90, or 8100 yds². ☺☺☺☺
Answer:
6 cm
Step-by-step explanation:
