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kow [346]
3 years ago
12

A book seller bought 80 copies of books at 3.50 per copy . He sold each of them at 4.20 , find the total price and profit cost p

rice​
Mathematics
1 answer:
bixtya [17]3 years ago
5 0
Is it negative? Or step by step $147
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Find the distance between X(-3, 8) and Z(-1,5) *<br> what is it :’)
ahrayia [7]
Answer:

d = √13

Step-by-step explanation:

d = √((x2 - x1)² + (y2 - y1)²)

points: (-3, 8) & (-1, 5)

d = √((-1 - -3)²+(5 - 8)²)

d = √(2)²+(-3)²

d =√(4 + 9)

d = √13



7 0
2 years ago
PLEASE HURRY I HAVE A LITTLE BIT OF TIME TO TURN IT IN
alexdok [17]

Answer: Ann's distance from home staying is increasing the fastest from the 5th to the 6th minute

Step-by-step explanation: The slope from the 5th minute to the 6th minute is 40, meaning that she increased 40 mph in one minute. This increase is greater than any other time periods. At first, you might think that minute 0 to 1 is the greatest but the slope from minute 0 to 1 is actually 30 mph, so therefore my answer can be proven correct.

6 0
3 years ago
What is the solution to the system of equations -8x + 4y = -2, 2y = 1​
Black_prince [1.1K]

Answer:

Hi! The correct answer is x=1/4+y/2!

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation

5 0
3 years ago
Find the center and radius of the circle (x+3)^2+(y-1)^2=81
sasho [114]

The equation of a circle is written as ( x-h)^2 + (y-k)^2 = r^2

h and k is the center point of the circle and r is the radius.

In the given equation (x+3)^2 + (y-1)^2 = 81

h = -3

k = 1

r^2 = 81

Take the square root of both sides:

r = 9

The center is (-3,1) and the radius is 9

5 0
3 years ago
Find the total amount you will pay on a bill of $43.50 and tip rate of 12%.
Mars2501 [29]
About $48.72



Explanation:
8 0
3 years ago
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