Answer:
78 m^2 Unless I got some of the measurements wrong, kinda hard to see them.
Step-by-step explanation:
The surface area will be the sum of the area of each face. so lets see, there is the base (in this orientation) which is a 8x3 rectangle it looks like.
then two trianglular sides with both having a base of 8 and height of 3
then two "roof" pieceswhich are rectangles again, one side of 3 and the other 5.
Now we add each face up.
rectangular base = 3x8 = 24
2 triangular sides = 2(.5*8*3) = 24
2 rectangular roof pieces = 2(5*3) = 30
Now add it all up
24+24+30 = 78
Unsure of what you're asking by "<span>What is the rate of 2.50/10.50
and 1.99/2.50?" Do you mean, "</span><span>What is the RATIO of 2.50/10.50
and 1.99/2.50?"
If so, this ratio is
2.5/10.5
---------------
1.99/2.50
Invert the denominator, obtaining 2.50/1.99, and then multiply the numerator 2.5/10.5 by this result:
2.5 2.5 6.25
------- * ------- = ----------- = 1 / 3.3432, or 0.2991.
10.5 1.99 20.895
If this is not the question you intended to share, please fix up your original post so I'll know what you meant.</span>
If 25% is 80, 100% is 320. 60% of 320 is 192.
21/50 and 13/20 is your answer
Answer:
a. 80.25
b. 104
Step-by-step explanation:
For (a), you add all the numbers together and divide by 4 because there are 4 test scores.
87 + 92 + 63 + 79 ÷ 5 = 80.25
For (b), we need to set up an equation. It is going to be a similar concept.
87 + 92 + 63 + 79 + x ÷ 5 = 85
x = 104
Hope this helps!