Answer: 15
Step-by-step explanation: All the information you need is a=3
5a is the same as saying 5xa or 5x3, so there you have it- 15
Hope this helps <3
Answer:= 6.8 × 10-6
Step-by-step explanation:Count how many zeros are in the problem then that's how you get your 10^-6 then 0.0000068 you just move the decimal point over until you get in between the two number 6.8 times ten and how many zeros were in the problem and if the zeros are on the left its negative if they are on the right its positive.
Answer:
11
Step-by-step explanation:
3/2 y - 3 + 5/3 z
We know the values for y (y=6) and z( z=3), so we can substitute them into the expression
3/2 * (6) - 3 + 5/3 * (3)
Multiply the terms
18/2 - 3 + 15/3
Simplify the fractions
9 - 3 + 5
Simplfiy
6 + 5
11
Answer:
x = 48
Step-by-step explanation:
Hey there! :)
Answer:
x = 4, y = -18 or (4, -18).
Step-by-step explanation:
Given:
5x + y = 2
2x - 3y = 62
We can use substitution to solve this problem. Rearrange the first equation in terms of y:
5x + y = 2 ---> y = -5x + 2
Substitute in this equation for y into the second equation:
2x - 3(-5x + 2) = 62
Distribute -3:
2x + 15x - 6 = 62
Combine like terms:
17x - 6 = 62
Add 6 to both sides:
17x = 68
Divide both sides by 17:
x = 4.
Plug in this value for x into an equation to solve for y:
5(4) + y = 2
20 + y = 2
y = -18.
Therefore, the solutions to this system of equations are:
x = 4, y = -18 or (4, -18).
