L = S + 80
180 - L - S = S + 10 simplify: L = 180 - 2S - 10
L = 170 - 2S = S + 80
3S = 90
S = 30 L = 110 3rd angle = 40
Answer:
1. Benny had 266 dollars to spend on 9 books. After buying them, he had 14 dollars. How much did each book cost?
The books cost $28 dollars each.
<em>how to calculate...</em>
<em>
$266 - $14 = $252
</em>
<em>
then take $252 divided by 9 = $ 28</em>
<em />
2. Oceanside Bike Rental Shop charges 14 dolars plus 9 dollars an hour for renting a bike. Sally paid 86 dollars to rent a bike. How many hours did she pay to have the bike checked out?
8 hours
how to calculate...
take 86 - 14 = 72
then 72 divided 9 = 8 hours
3. The sum of three consecutive numbers is 132. What is the smallest of the three numbers?
43 is the smallest of the 3 numbers
<em>calculation...</em>
<em>x + (x+1) + (x+2) = 132</em>
<em>3x + 3 = 132 -3</em>
<em>3x=129
</em>
<em>x=129/3
</em>
<em>
x=43 (answer for the 1st number)</em>
<em>43+1=44 (answer for the 2nd number)</em>
<em>43+2=45 (answer for the 3rd number)</em>
add them all to make sure they equal to 132
<em>43+44+45=132
</em>
<em>132=132</em>
4. Sandy sold half of her comic books and then bought 8 more. She now has 16. How many did she begin with?
x= how many Sandy started with
<em>1/2 x + 8 = 16</em>
<em>1/2x = 16 - 8</em>
<em>1/2x = 8 * 2</em>
x = 16 comics books
Step-by-step explanation:
Answer:
<h2>f(x + 1) = 2x + 8</h2>
Step-by-step explanation:
Answer:
0.777......
Step-by-step explanation:
0.333...... + 0.444......
= 0.777......
Hope it helps :)
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