Answer:
30%
Step-by-step explanation:
To calculate the percentage of deliveries that Lamar has completed so far, divide the number of deliveries so far by the total number he needs to make.
21/70 = 0.3
Convert the decimal to percentage form by moving the decimal two places to the right and including the percent sign.
0.3 = 30%
He has completed 30% of his deliveries.
The quadratic equation with roots 1/α and 1/β is
<u>Solution:</u>
Given, roots of equation
We have to find equation whose roots are 1/α, and 1/β.
We know that,
Now, we know that, general form of an equation is
Then, equation whose roots 1/α and 1/β is
from above given equation,
Answer:
Random sampling is a part of the sampling technique in which each sample has an equal probability of being chosen
Step-by-step explanation:
Answer:
Step-by-step explanation:
You have the right numbers, but the wrong accounts.
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Let x represent the amount invested at 8% (the highest rate). Then the total interest is ...
.08x +.03(3000 -x) = .04(3000)
.05x = .01(3000) . . . . subtract .03(3000)
x = 3000/5 = 600
Matthew invested $600 at 8%, $2400 at 3%.
_____
<em>Comment on checking your answer</em>
You may notice that the overall interest rate is 4%, closer to 3% than to 8%. That means more of the money must be invested at 3% than at 8%.
Answer:
Step-by-step explanation:
Jack's method is equivalent because of the "law of commutative property", which means that multiplication problems have the same result no matter the order.
2x5 is the same as 5x2