Answer:
Brother is 3 and Robert is 13
Step-by-step explanation:
R= roberts age
B = brothers age
R = B+10
In 2 years, so we add 2 to each age
(R+2) = 3(B+2)
We now have 2 equations and 2 unknowns
Substitute R = B+10 into the second equation
(B+10+2) = 3(B+2)
Combine like terms
(B+12) =3( B+2)
Distribute the 3
B +12 = 3B+6
Subtract B from each side
B-B +12 = 3B-B+6
12 = 2B+6
Subtract 6 from each side
12-6 = 2B +6-6
6 = 2B
Divide by 2
6/2 = 2B/2
3 =B
Brother is 3
Now we need Roberts age
R = B+10
R = 3+10
R =13
It’s the third one.
144. 6 x 6 = 36
36 x 8 = 288
288 divided by 2 ( divide by half the dotted line)
answer : 144
<h2>∠K = 93°</h2><h3></h3><h3>∠G = 73°</h3><h3>∠D = 14°</h3><h3></h3><h3>73 + 14 = 87</h3><h3>180 - 87 = 93</h3><h3></h3><h3>∠F = 93°</h3><h3>∠F = ∠K</h3><h3>∠K = 93°</h3><h3></h3><h3><em>It's really not that hard.</em></h3><h3><em>Please let me know if I am wrong.</em></h3>
Assuming T, B and N are all on the same line, then we can say
BT + TN = BN
which is the segment addition postulate.
Subtract TN from both sides to get
BT + TN = BN
BT + TN - TN = BN - TN
BT = BN - TN
BN - TN = BT
Which is what choice C is saying. Therefore the answer is choice C.
Answer:
5x
Step-by-step explanation: