Answer:
N=4.5
Step-by-step explanation:
-9=-2N
N=9/2=4.5
Answer:
288
Step-by-step explanation:
If 52% studied French, then 48% didn't. The ratio of those who didn't to those who did is ...
(didn't study French)/312 = 48%/52% = 12/13
Then the number that didn't study French is ...
(didn't study French) = 312 × 12/13 = 288 . . . . . . multiply above by 312
288 students chose not to take French their Junior year.
Step-by-step explanation:
Use the equation:
Current values X interest to the power of years
So: £6600 X 1.006^6 = £6,219.27
Therefore, the answer is £6,219.27 after 6 years
Hope this helps!!!!
Have a nice day :)
Answer:
Step-by-step explanation:
Triangle ABC is similar to triangle EDC. Therefore,
AB/ED = BC/DC = AC/EC
1) Angle A is congruent to angle E.
2) BC/DC = AC/EC
From the information given,
BC = 6
EC = CE = 20 1/4 = 20.25
AC = 9
Therefore,
6/DC = 9/20.25
Crossmultiplying, it becomes
9 × DC = 6 × 20.25 =
9DC = 121.5
DC = CD = 121.5/9 = 13.5
AB/ED = BC/DC
DE = ED = 22 1/2 = 22.5
Therefore,
AB/22.5 = 6/13.5
Crossmultiplying, it becomes
13.5 × AB = 22.5 × 6
13.5AB = 135
AB = 135/13.5
AB = 10
3 3/4 inches are equivalent to 3.75 inches:3 3/4 = 3.75. Divide 45 inches by 3.75 to see how many boards are needed: 45 / 3.75 = 12. To check: 3.75 x 12 = 45 inches. So, 12 boards are needed.