<span>14-3y=4y
Add 3y to both sides so that the variable y is only on one side.
14=7y
Divide 7 on both sides so that the only thing remaining on the right side is the variable y.
Final Answer: 2=y</span>
Say you have 3 cakes. How many cakes would you have eaten if you ate 1/3 of the three cakes? One, you have eaten one cake, out of the three you have.
How many cakes do you have left if you eat 2/3 of the three cakes? Two, you have eaten 2 cakes, and have 1 cake left.
It is a similar approach here, except the confusing part is working "forward", when you really have to work "backward". If you have driven 30 miles, and you have driven 2 parts out of the trip when there is 3 parts of the trip, how many miles have you driven? Hint: Dividing 30 by 2 gives you what fraction of the distance to Jeff's grandmother?
Answer:
$100 + $18d = payed amount
Step-by-step explanation:
Dinos really are awesome
Answer:
cosA = √(21/25)
Step-by-step explanation:
We know
sin²(A) + cos²(A) = 1
Next, we know that sin(A) = 2/5. Plugging that into our equation, we get
(2/5)² + cos²A = 1
4/25 + cos²A = 1
subtract 4/25 from both sides to isolate cos²A
cos²A = 1 - 4/25 = 25/25-4/25 = 21/25
square root both sides to get
cosA = √(21/25)
We do not include -√(21/25) in our possible answer for cosA because this is in quadrant 1, so cosA must be positive.
Answer:
Step-by-step explanation:
Given
<u>Brand A</u> <u>Brand B</u>
Required
Determine the test statistic (t)
This is calculated as:
Calculate s using:
The equation becomes:
So:
