Answer:
10x - 6y = 30
Step-by-step explanation:
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To solve this all it takes is two simple steps
Simplify
1/2x =22
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Multiply both sides by 2
2 ·
= 2 · 22
x = 44
.25x54=13.5 163x1.25=203.75 13.5+203.75=217.25
Answer: ∠DOB: 48°
Step-by-step explanation:
1. we need an equation first. the sum of all angles (108°, n°, 2n°) is equal to 180°. we can depict this with the equation: 108°+2n°+n°=180°
2. now we can solve for the missing variable, n.
108°+3n°=180° → subtract both sides by → 3n°=72° → divide both sides by 3 → n=24°
3. now that we know that n=24°, we can solve the value of ∠DOB. we can see that ∠DOB is 2n° which we just plug the number we got for n into the equation. 2*24=48° meaning ∠DOB is 48°
hope this heped! ♡
