Okay. 60 equals twice the number added to itself. That would be 30, because 60 is twice of 30 and 30 added to itself is 60. The number is 30.
Answer:
x = 1, y = 4
Step-by-step explanation:
This is very simple
Since you have 2 equations with the same coefficient of x, just minus one equation from another:
x + 3y = 13
-
x + 2y = 9
1y = 4
Sub y = 4 into any of the 2 equation,
x + 3(4) = 13
x + 12 = 13
x = 13 - 12
= 1
First, 90 minutes will equal 1.5 hours. And I have the formula for this is distance=time×speed, so I just take 25 divided 1.5 to get the speed she is riding which equal 16 2/3 miles per hour. Hope it help!
The triangle ABC is a right angled triangle , right angled at C because it is the angle subtended by the diameter
Now OA = OB = OC = 4 cm (radii)
AB = OA + OB = 8 cm
By pythagoras theorem ,
AC =4 
shade region area = area of semicircle - area of triangle
= 
- 1/2 × base × height
=1/2 × 16 
- 1/2 × 4 × 
=8 - 8
=8(
)
Answer:
Rs 2,500
Step-by-step explanation:
He has spent Rs1850 + Rs150 = Rs2000
if Rs2000 = 100%
X = 125%
By cross multiplication, we get;
100x = 2000 * 125
x = 250000/100
x = Rs 2,500
