Answer:
Radius of P = 5 cm
Step-by-step explanation:
Radius (r) of Q = 20 cm
Area of Q = 4 × Area of P
This means that:
Area of the quarter circle (Q) = 4 × Area of the circle (P)
Thus:
¼(πr²) = 4 × πr²
Plug in the values into the equation
¼(π*20²) = 4 × πr²
Find the value of r, which is the radius of P
¼(400π) = 4πr²
Multiply both sides by 4
400π = 4πr²*4
400π = 16πr²
Divide both sides by 16π
400π/16π = r²
25 = r²
Take the square root of both sides
√25 = √r²
5 = r
r = 5
Therefore, the radius of P = 5 cm
Answer:Let x be the number of kilograms he sold in the morning.Then in the afternoon he sold 2x kilograms, so the total is x+2x=3x This must be equal to 360.Therefore, the salesman sold 120 kg in the morning and 240 kg in the afternoon.
Hope this helps :)
Answer:
coolshirts.com will sell the t shirts for %7.5
Explaination:
the company pays 2.50 to make the shirt and has a 300% mark up.
300% as a decimal is 3 and then you just multiply 2.50 by 3 to get 7.5
Answer:
x=-3
y=3
Step-by-step explanation:
-27=-9x-18y equation 1
-5y-10x-15=0 equation 2
using equation 2 we have:
-10x -15 =5y
y= -2x -3 equation 3
using equation 3 in equation 1 we have:
-27=-9x-18(-2x -3)
-27= -9x +36x +54
-27-54 =27x
-81 = 27x
so we have:
x= -81/27
x=-3
y= -2(-3) -3
y= 6-3
y = 3
All three clocks will show the same time in 1 day.
