Answer:
x = 21
Step-by-step explanation:
1. Write the equation
(18 + 2x) ÷ 5 = 12
2. Multiply both sides by 5
18 + 2x = 60
3. Subtract 18 from both sides
2x = 42
4. Solve for x by dividing both sides by 2
x = 21
first thing you have to do is find the rate for the bike so you divide 30 by 2 and you get 15 after you do that you make a problem to find the percentage so you take x/100 and 12/15 then you take 12 times 100 and that gives you 1200 then you divide by 15 and get 80. So the answer is 80%
Answer:
-2x^6 + 7x^4 + 3x^3 - 3x^2 + 11x + 20
Step-by-step explanation:
When multiplying two expressions, each part of the expression has to be multiplied by each part of the other expression.
(-2x^3 + x - 5) * (x^3 - 3x - 4)
Let's multiply -2x^3 first.
-2x^3 * x^3 = -2x^6
-2x^3 * -3x = 6x^4
-2x^3 * -4 = 8x^3
Now let's multiply x.
x * x^3 = x^4
x * -3x = -3x^2
x * -4 = -4x
Finally, let's multiply -5.
-5 * x^3 = -5x^3
-5 * -3x = 15x
-5 * -4 = 20
Let's put all of our answers into one expression in descending order of exponents.
-2x^6 + 6x^4 + x^4 + 8x^3 - 5x^3 - 3x^2 - 4x + 15x + 20
Combine like terms:
-2x^6 + 7x^4 + 3x^3 - 3x^2 + 11x + 20
Answer:
5.13m^2
Explanation:
A = 1/2bh
A = 1/2(3.8)(2.7)
A = 5.13m^2
Answer:
1.7 is what 3^2
Step-by-step explanation:
