Answer:
Step-by-step explanation:
"Two times one number added to three times a second number is 21.
2x + 3y = 21
"The second number is ten less than five times the first number"
y = 5x-10
Substitution
2x+3(5x-10) = 21
2x + 15x - 30 = 21
17x = 51
x = 3
y = 5x-10 = 5
V=a cube
If i am wrong let me know!
180 is the answer you multiple 6 times 30
a. 50 degree
b.40 degree
c.140 degree
Given
Required
Determine the total size of the string
To do this, we multiply the number of pieces by the length of each piece.
Convert to mixed number
im not sure but i think is 1
4