Simplify the expression. Select the best answer from the choices below.

Mathematics

1 answer:

Alik [6]3 years ago

4 0

Answer:

10x-6+y

Step-by-step explanation:

remove parentheses then collect like terms,hope this helped:)

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The officers of a high school senior class are planning to rent buses and vans for a class trip. Each bus can transport 6363 st

attashe74 [19]

Answer:

1 bus, 72 vans
$6960 is the minimum cost

Step-by-step explanation:

A bus costs over $19 per student; a van costs less than $12 per student. The required number of students could be transported by 81 vans, but that requires 81 chaperones.

Since there are only 80, and a bus requires fewer chaperones per student, we can reduce the number of required chaperones to an acceptable level by employing one bus. 1 bus replaces 9 vans, and requires 1 less chaperone than 9 vans.

The minimum cost is 1 bus and 72 vans. That cost is $1200 +72×$80 = $6960.

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DENIUS [597]

Answer:

1/8

Step-by-step explanation:

1/2÷4=

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yanalaym [24]

Answer:

A. choosing a sock from a drawer, putting it on, then picking another sock from the drawer

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3 years ago

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Question text You have just won the lottery. The Lottery Corporation offers you two options: 1. a lump-sum payment of $400,000,

igomit [66]

Use present value equation.
If present value of annuity equals 400,000, then you are indifferent.

$PV = A(v + v^2 + ...v^{20}) \\ \\ PV = A\frac{v(1-v^{20})}{1-v}$

where v = 1/(1+r) and A = annual payment = 800,000/20 = 40,000

PV = 400,000
After subbing in the numbers, the equation is:
$10 = \frac{v(1-v^{20})}{1-v} \\ \\ 10 - 10v = v - v^{21} \\ \\ v^{21} - 11v+10 = 0 \\ \\ v = 0.928034 \\ \\ \frac{1}{1+r} = 0.928034 \\ \\ r = 0.0775$

Therefore at interest rate of about 7.75% you are indifferent.

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4 years ago

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anyanavicka [17]

The correct answer is B) ASA postulate

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