Answer:
x=1 y=1
Step-by-step explanation:
Let's use the elimination method.
3x+4y=7
2x-y = 1 (multiply both sides by 4)
8x-4y=4
3x+4y=7
(add both equations together)
11x=11
x=1
Plug x=1 into either of the equations
2(1) - y=1
2-y=1
2=1+y
y=1
Answer:
1/4
Step-by-step explanation:
there are 12 gumballs in total
1 yellow + 2 pink = 3 gumballs out of all 12
3 /12 is simplified to 1/4 as both numbers is divisible by 3
Okay, so keeping mind that the equation for area is A = L x W, look at the measurements you already have. 5.5 x 10^5 is the length, and 4.2 x 10^4 is the width. Switch them into full form and use a calculator to multiply the two for the area in meters.
550000 x 42000 = 23100000000, which in scientific form is 2.31 × 10^10. So that's answer one.
For the second, in kilometers, just take the full measurement you already have, 23100000000 m, transfer it into kilometers, 23100000 km, and then find its scientific notation, 2.31 × 10^7. That's answer two.
To answer the last question for which is more suitable, just consider what number you'd prefer to look at: a bigger number or a smaller one. Since the kilometer measurement number is smaller, its correct.
Summarily, the answers are 2.31 × 10^10, 2.31 × 10^7, and square kilometers, in that order.
340 × .2 = 68
68 page decrease
340 - 68 = 272
272 pages left
Answer:
Lateral surface area of the cylinder =
Step-by-step explanation:
Lateral surface area of he cylinder = 
i.e area of side surface.
Lateral surface area of the cylinder = 
L.S.A= 
L.S.A=
The lateral surface area of the cylinder with radius 8 cm and height 5 cm is
