Answer:
A right triangle or right-angled triangle is a triangle in which one angle is a right angle.
<u>Therefore, one of the angles must be 90 degrees to be a right angle triangle.</u>
I believe you meant to say that if Samantha bought 510 pounds of hamburger, how much will she pay?
Now from the information we already have, we know that 3 pounds of hamburger will cost 6 dollars.
The next thing we need to know is how much one pound of hamburger will cost. This will help us calculate how much the rest will cost.
we now form an equation to assist us.
3 = 6
1= x
(where x represents the unknown price of one pound of hamburger)
Now we must cross-multiply:
3 * x = 6 x 1
3x = 6
x = 6/3
x = 2
therefore one pound of hamburger costs 2 dollars.
Now, If one pound costs 2 dollars, how about 510 pounds?
We simply multiply: 510 x 2 = 1,020
Therefore Samantha will pay 1, 020 dollars for 510 pounds of hamburger.
Answer:
10
Step-by-step explanation:
Turn 3 1/3 into an improper fraction.
(3*3) + 1 = 10/3 so 10/3 is the same as 3 1/3
Turn the 3 into an improper fraction of 3/1
Now multiply 10/3 * 3/1 multiplying straight across: 10*3/3*1=30/3=10
Answer:
The answer is 27
Step-by-step explanation:
The reason being, you can solve this 2 ways.
1) Combine like terms, 7a-4a = 3a.
Now just substitute (a=9) into 3a.
3 * (9) = 27.
2) Or just substitute a = 9 into the original expression.
7 * (9) - 4 * (9)
= 63 - 36 = 27
