Answer:
SA = 2550.97
Step-by-step explanation:
SA=2πrh+2πr2
=2*π*14*15+2*π*142
=2550.97323
Answer:
5^3 : 4^3
125 : 64
Step-by-step explanation:
x - 4y = 15
-x -x (subtract x on both sides)
-4y = 15 -x
---- -------- (divide by -4 on both sides)
-4 -4
y = -3.75 - 1/4x (change to slope-intercept form which will be y = -1/4x -3.75)
substitute that equation for y on the other equation so you will get
x - 4(-1/4x - 3.75) = 15
x + 1x + 15 = 15 (use distributive property)
2x + 15 = 15 (combine like terms)
2x = 0 (subtract 15 on both sides)
x = 0 (divide both sides by 2)
substitute for x on any equation (Im going to be using x - 4y = 15)
0 - 4y = 15
-4y = 15 (add 0 to both sides)
y = -3.75 (divide both sides by -4)
Point of intersection is (0, -3.75)
Hi!
We will solve this using ratios, like this:
4 1/2 = 4,5 kg of olive oil for 27 $
1 kg of olive oil for x $
_____________________________
x = (27*1)/4,5
x = 27/4,5
x = 6 $ per kilogram
Hope this helps!
Q1: Terry’s map=1/500 of true size
Multiply inches by 500 to calculate with scale factor:
6*500=3,000
12 inches=1 foot
3,000/12=250 Feet (Option A)
Q2: 12 in=1 Foot
30 feet* 12 inches=360 inches
Divide by 360 inches by 36 inches:
360/36=10 parts (Option A)
