3.14 can be expressed as 3.141592653589793238462643383279 with 30 decimal places.
Answer:
V= a^3 = 53 = 125m³
Step-by-step explanation:
Answer: 3.5 years
Step-by-step explanation: Let A be the salaries earned from company A for x years and B for company B for the same years.
A = 31000 + n*3000
B = 38000 + n*1000
To find the case where A = b, set them to each other and solve for n, the number of years.
31000 + n*3000 = 38000 + n*1000
2000n = 7000
n = (7000/2000) = 3.5 years.
A B
0 31000 38000
1 34000 39000
2 37000 40000
3 40000 41000
4 43000 42000
5 46000 43000
6 49000 44000
7 52000 45000
PLEASE HELPPPPP ME PLEASE I DONT KNOW WHAT TO DO ☹️#8
Answer:
D
Step-by-step explanation
Let x be the cost of 1 lb of grapes and y be the cost of 1 lb of oranges
Then,
2x + 4y = $ 10.70
3x + 2y= $9.65
The value of an equation doesn't change if we multiply both L.H.S and R.H.S by the same number.
3(2x + 4y) = 3 * $10.70
6x + 12y = $32.10 .............(1)
2( 3x + 2y) = 2 * $ 9.65
6x + 4y = $19.30 ..........(2)
Using elimination method, (1) - (2),
6x + 12y - (6x + 4y) = $32.10 - $19.30
6x + 12y -6x -4y = $ 12.80
8y = $12.80
y = ($12.80)/8
Therefore, y = $1.60
The cost of 1 lb of oranges = y = $1.60
2x + 4y = $ 10.70
2x + 4 * $1.60 = $ 10.70
2x + $6.40 = $10.70
2x = $10.70 - $6.40
2x = $4.30
x = $2.15
The cost of 1 lb of grapes = x = $ 2.15
Hope it helps : )
Any doubts?
