Plug in 6.5 for x.
-8.5x-3.5x=-78
-8.5(6.5)-3.5(6.5)=-78
-55.25-22.75=-78
-78=-78
Since they are similar, you need to find the ratio of similarity (I made up the term, there is probably a correct one that I can’t remember).
If you divide 16/40, you’ll find that that ratio is 2.5. So then you just multiply 16 x 2.5. You’ll get 18.
18 is the length of the top of the trapezoid.
You set 18=2x+4 and solve it algebraically. Subtract 4 from both sides.
14=2x
Divide by 2 and x=7
(You can also check that the ratio is right by 16/18 is the same decimal value as 40/45. You’ll get .88888...)
Answer:
d
Step-by-step explanation:
3/14 divided by 2/7 is 0.75
a.) 0.28571428571
b.) 0.5
c.) 0.14285714285
d.) 0.75
So d is the correct answer.
Answer:
14 inches
Step-by-step explanation:
The volume of a rectangular prism is V=l*w*h
Given the info in the problem, we have:
840=l*10*6
840=60l
14=l
The length of the prism is therefore 14 inches because volume is length*width*height and since we already have the volume, height, and width, we need to get the variable for length by itself.
Belinda's weekly expenses are
Bus fare $8.70
Lunch out $7.35
Haircut $16.00
Movie rental $5.95
Total = 8.70 + 7.35 + 16.00 + 5.95 = $38.00
Answer: d. $38.00
