Answer:
16.5
Step-by-step explanation:
Just put in the values of C and y first into the expression.
C = 4x + 5y
Put in values.
51 = 4x + 5(-3)
Evaluate.
51 = 4x + (-15)
Swap positions.
4x + (-15) = 51
Shift (-15) to the other side and change to (+15).
4x = 51 + 15
= 66
Find x.
x = 66 ÷ 4
x = 16.5
Answer:
B. x ≥ 2
Explanation:
<em>hey there,</em>
<em />
< 54-10x ≤ 20+7x
This is kind of simplified as if it was an equation with "=". First, put all the "x"s to one side.
54-10x-7x ≤ 20
Put all the regular numbers to the other side.
-10x-7x ≤ 20-54
Continue simplifying:
-17x ≤ -34
When finishing up this to try to find "x", you are going to change the sign to the opposite (since here it is greater than or equal to, you're going to change it to less than or equal to). The sign is going to change because the numbers being dragged over are negative. This is just a rule you have to follow. So:
x ≥ 2 is your final answer. >
<u>Hope this helped! Feel free to ask anything else.</u>
(Also for future reference, you can add your question in the question box instead of into the comments.)
Answer:
The answer is 68 6/11
Step-by-step explanation:
If you enter the number into a calculator it shows you the exact decimal, therefore you can identify the answer.
Answer:
Yes, is a Pythagorean triple
Step-by-step explanation:
To know if you can build a right triangle with those sides we have to make the following equality
h² = l1² + l2²
The hypotenuse is always the longest side so it should be 73
we check the equality of the equation
73² = 48² + 55²
5329 = 2304 + 3024
5329 = 5329
Equality was fulfilled so it is a right triangle
Answer:
36
Step-by-step explanation:
