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emmasim [6.3K]
3 years ago
15

Don't understand these questions help!!!!!

Mathematics
1 answer:
scoundrel [369]3 years ago
4 0
8) B - It's asking for the price you should offer, so you want to find 7% of the asking price (p) by multiplying it to 0.07 (which is 7%, move decimal to left 2 places). Then you want to subtract that number from the asking price to get the amount you should offer

9) C - It's asking for how much money you'll save, so you need to multiply how much computers you'll buy (25) to the price of each computer (z). Then you'll multiply that number to 0.19 (which is 19%, move decimal to left 2 places) to get how much you'll save
You might be interested in
A ferry operator takes tourists to an island.
Oksanka [162]

The fare of $(20 - 2.5) = $17.5 will maximize the total fare.

<h3>What is Differentiation?</h3>

Differentiation means the rate of change of one quantity with respect to another. The speed is calculated as the rate of change of distance with respect to time.

Here, The operator for a round-trip fare of $20, carries an average of 500 people per day.

It is estimated that 20 fewer people will take the trip, for each $1 increase in fare.

for $x  increase in fare, 20x less people will take the trip and at that time the total fare F is given by  

f(x) =(20 + x)(500 - 20x)

f (x) = 10000 + 100x - 20x²

For f(x) to be maximum, the condition is dy/dx = 0

 100 - 40x = 0

⇒ x = 2.5  

Thus, the fare of $(20 - 2.5) = $17.5 will maximize the total fare.

Learn more about Differentiation from:

brainly.com/question/24062595

#SPJ1

3 0
2 years ago
Can i get someone to answer this for me please?
denpristay [2]

Answer:

B, D and also E

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Suppose that 13 inches of wire costs 78 cents.
GarryVolchara [31]

Answer:

$0.42

Step-by-step explanation:

create a proportion:

13/.78 = 7/x

cross-multiply to get:

13x = 7(.78)

13x = 5.46

x = 5.46/13

x = .42

5 0
3 years ago
I need help with this pls
Vadim26 [7]

Answer:

I tho this was a game at first but gurl i can see the shape and everything but what im i supposed to do?

just tell me the instructions and ill help

8 0
3 years ago
I need working out and answers for the following:
LenaWriter [7]
A. 4x - 3 = 2x + 7
4x - 2x = 7 + 3
2x = 10
x = 5

B. 2x + 6 = 7x - 14
2x - 7x = - 14 - 6
-5x = -20
x = 4

C. 2( x + 3) = x - 4
2x + 6 = x - 4
2x - x = -4 - 6
x = -10

D.4 ( 5x - 2) = 2( 9x + 3)
20x - 8 = 18x + 6
20x - 18x = 6 + 8
2x = 14
x = 7

E.4x - 1/2 = x - 7
4x - x = -7 + 1/2
3x = (-14 + 1)/2
3x = -13/2
x = -13/6

F. 3x + 2 = 2x + 13/3
3x - 2x = 13/3 - 2
x = (13 - 6)/3
x = 7/3


Hope This Helps You!
4 0
3 years ago
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