Answer:
$112
Step-by-step explanation:
First you must see that there are 2 variables in this problem, the bike and accesories.
If the bike and accesories are equal to $140 then, x+y=140.
If the bike is 4x the amount of the accesories then 4x=y. Substitute y in the first equasion for x+4x=140.
That means 5x=140, and solving for x you get $28. Since the bike was 4x the amount of accesories then 4*28= $112.
To check your work you can solve it again. $28+$112=$140 or 28+4*28=140.
Accessories: x
Bike: 4x
Total1: 5x
Total2: 140 dollars.
x + 4x = 140 dollars
5x = 140
x = 28
Accessories: 28
Bike: 112
-13
Im correct!
1.7
A. 90°+m∠4
Also
∠ A + ∠ C = 180 o = ∠ B + ∠ D
⇒ 2 x+ ( 3 x − 5 ) = 180 0 = ( x + 5 ) + ∠ C
5 x − 5 = 180
Add 5 to both sides
5 x = 185
Divide both sides by 5
x = 185 5 = 37
But it was A. 90°+m∠4
