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Alexeev081 [22]
3 years ago
9

Rebecca is three years younger than twice Anthony's age. Write an expression that represents the relationship of Rebecca's age i

n terms of Anthony's age.
Mathematics
1 answer:
Andrei [34K]3 years ago
4 0

Answer:

X=2y-3

Step-by-step explanation:

Let Rebecca's age be x

Let Anthony's age be y

Twice Anthony =2y

Rebecca's age (x) to be 3 years younger than twice Anthony's =2y-3

So, it's x=2y-3

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 Sandra sells necklaces at a school craft fair. She uses the equation P= 7.5n - (2.25n + 15) to determine her total profit at th
gregori [183]
The way you find profit is to subtract the revenue and the cost
Profit = Revenue - Cost
The revenue is the amount of money coming in, the cost is the amount of money going out. The goal of course is to have the revenue larger than the cost so that the profit is positive. 

So the equation given is
P = 7.5n - (2.25n+15)
and its in the form
P = R - C
where...
R = 7.5n is the revenue equation
C = 2.25n+15 is the cost equation

Focus on the revenue equation
R = 7.5n
which is the same as 
R = 7.50*n

This tells us that Sandra pulls in a total of 7.50*n dollars where n is some positive whole number. It represents the number of necklaces sold. For example, if she sold n = 10 necklaces, then
R = 7.50*n
R = 7.50*10
R = 750
meaning that Sandra has made $750 in revenue

As you can see above, the revenue is computed by multiplying the price per necklace ($7.50) by the number of necklaces sold (n) to get R = 7.50*n

So that's why the answer is $7.50

Note: The 2.25 is part of the cost equation. This is known as the variable cost. It is the cost to make one necklace ignoring the fixed cost (eg: rent). The variable cost often doesn't stay the same, but algebra textbooks often simplify this aspect. 
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3 years ago
HELP!! VERY TIME TIME SENSITIVE
guapka [62]

Answer:

B is your correct answer

Step-by-step explanation:

3 0
2 years ago
Can anyone help me this was literally due over a week ago
mixer [17]

Answer:

You multiply 5 by 1/5 to get 1. So with 2x, you multiply by 1/(2x) to get 1. That's about all you know, since we only know that x is positive.

Step-by-step explanation:

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2 years ago
Read 2 more answers
Lauren simplified the expression (mm)
eduard
she should’ve written m-12 as m12
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3 years ago
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balandron [24]

closed dot is if the number is part of the solution so if it is equal to

 and

use open if it is not part of solution as in if it is greater than or less than

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5 0
3 years ago
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