Answer:
Surface area: 384in
Step-by-step explanation:
To find the surface area, you calculate the area of one side of the cube.
8 x 8 = 64
Once you get the area of one side of the cube, you multiply your new number by the number of sides in the cube. A cube has 6 sides, so you would multiply the area by 6.
64 x 6 = 384
Therefore, your surface area is 384in
Answer:
1/10
Step-by-step explanation:
If she painted 1/20 of a fence in 1/2 hour she can paint another 1/20 of the fence in another 1/2 hour.
1/20 + 1/20 = 2/20 = 1/10
let's make p stand for popcorn and d for drinks. Using those variables, we can create our equations:
2p + 3d = 18.25
4p + 2d = 27.50
From this, we can use substitution or elimination to solve:
For substitution, in the second equations, we could factor out a 2, divide both sides by 2, and then move the left over 2p to the other side to isolate d to put into the first equation.
For elimination, we can multiply the first equation by -2 so that we can remove the 4p and focus on solving for d.
I'll be using elimination in this case:
-2(2p + 3d = 18.25) --> -4p - 6d = -36.50
-4p - 6d = -36.50
4p + 2d = 27.50
-4d = -9.00
d = 2.25
4p + 2 * 2.25 = 27.50
4p + 4.50 = 27.50
4p = 23.00
p = 5.75
Now let's check our answer:
2 * 5.75 + 3 * 2.25 = 18.25
11.50 + 6.75 = 18.25
18.25 = 18.25
So drinks cost $2.25 and popcorn $5.75
Answer:
Yeah.it is right
Step-by-step explanation:
Step-by-step explanation:
i. (2x+10)+(3x+5)+(2x+40) = 360
2x+3x+2x+10+5+40= 360
7x+55 =360
7x=360-55
<u>7x</u>= <u>3</u><u>05</u>
7. 7
x= 43.57=43.6
ii. 2x+10= 180
2x=180-10
<u>2</u><u>x</u>= <u>1</u><u>7</u><u>0</u>
2. 2
x=85
3x+5 =180
3x=180-5
<u>3</u><u>x</u>=<u>1</u><u>7</u><u>5</u>
3. 3
x= 57.5
2x+40=180
2x=180-40
<u>2x</u>=<u>140</u>
2. 2
x= 70
From the above 3x+5 which is 57.5 is the smallest interior angle of the triangle
iii. The largest interior angle of the triangle is 2x+10 which is 85
