Answer:
a) FKR and F'KR form supplementary angles
b) FK = F'K
EF = E'F'
(They are reflected by mirror)
Answer:
x=9
Step-by-step explanation:
4(x – 2) = 3x + 1
Distribute 4x-8 = 3x+1
Subtract 3x from each side
4x -8-3x = 3x-3x + 1
x-8 =1
Add 8 to each side
x-8+8 = 1+8
x=9
On Monday, Alex had $2 in his allowance. His mom gave him 5 times that amount. On Wednesday, his little brother had $3 and his mom gave him 6 times the amount he has. Him and his brother wants to combine the money together and later that day, they spent $12 on candy.
L=length, w=width
l=2w+5
2l+2w=34
2l=4w+10 [here I just multiplied the first equation by two]
4w+10+2w=34 [substitute 4w+10 for 2l]
6w=24, w=4
remember l=2w+5 so l=2(4)+5=13
Answer: The length is 13.
