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3 years ago

What is the formula in solving selling price?

Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

8 0

Step-by-step explanation:

selling price = (100 + profit%)cost price/100; [Here, cost price and profit% are known.] 1.

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Aloiza [94]

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Step-by-step explanation:

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3 years ago

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Can someone please explain how to do this problem for me?

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Step-by-step explanation:

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3 years ago

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Maryam’s wallet contains a combination of $5 and $10 bills. What is the ratio of $5 bills to $10 bills? (1) The ratio of the num

azamat

Answer:

(1) The ratio of number of $5-bill to number of $10-bill is: 1/4;

(2) The ratio of number of the $5-bill to number of $10-bill is: x/ [(72-x)/2] in which x is the number of $5-bill and x must be either 0 or an even positive integral ( as their is insufficient information given, there can be many ratios that suit into the given information as long as the condition on x is met).

Step-by-step explanation:

(1) Denote x is the number of $5 bill and y is the number of $10 bill, in which x and y should be >= 0 and is an integral number.

We have (x+y) / (5x + 10y) = 1/9 <=> 9x + 9y = 5x + 10y <=> 4x = y <=> x/y =1/4 .

(2) Denote x is the number of $5 bill, y is the number of $10 bill.

We have: 5x + 10y = 360 <=> x = [ 360 - 10y ] /5 <=> x = 72 - 2y <=> y = (72 - x)/2 => x/y = x/[(72-x)/2] in which x must be must be either 0 or an even positive integral so that y can be identified in order to match with the given information .

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4 years ago

Two skateboarders, Ron and Bob, are traveling in opposite directions.Ton travels at 8 feet per second and bob travels at 10 feet

omeli [17]

Time taken before they are 2640 feet is 146.67 seconds

Solution:

The distance is given by formula:

$distance = speed \times time$

Ton travels at 8 feet per second

Let us assume, time taken = t

speed = 8 feet per second

Then, distance is given as:

Distance covered by Ton = 8t

Bob travels at 10 feet per second

Then, distance is given as:

Distance covered by Bob = 10t

How long will it take before they are 2640 feet

Which means,

Distance covered by Ton + Distance covered by Bob = 2640

$8t + 10t = 2640\\\\18t = 2640\\\\Divide\ both\ sides\ of\ equation\ by\ 18\\\\t = 146.67$

Thus time taken before they are 2640 feet is 146.67 seconds

<h3>Method 2:</h3>

Since trains are moving in opposite directions, their speeds must be added

speed = 8 + 10 = 18 feet per second

Given distance = 2640 feet

Therefore, time taken is:

$time = \frac{distance}{speed}\\\\time = \frac{2640}{18} = 146.67 \text{ second }$

Thus time taken before they are 2640 feet is 146.67 seconds

4 0

4 years ago

A tennis racket normally costs $60. The tennis racket is on sale for 30% off. What is the sale price of the tennis racket?

hram777 [196]

The answer would be 42 and here’s how:)

so to start it would be written as this.
___=30% x 60

meaning what equals 30% of 60.

= means is
x means of
___ means what

•so for example if you have this question written out, it would be - what is 30% of 60, and that would turn into the first equation by a substitution method.
• then you have to put the 30% as a decimal. (0.3)
now the equation looks like this.
___=0.3 x 60
• then you would turn it around so it’s 0.3 x 60=

now the answer to that equation is 18.
• so now you have to take the original 60, and subtract the answer amount of 18.

that would look like this. 60-18=___
the answer to that is 42! and there’s your answer! hope it helped!

8 0

3 years ago

What is the formula in solving selling price?​

What is the formula in solving selling price?