What is 5/8 written as a decimal
2 answers:
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To find the measures A and C you first have to know that all the angles of a triangle sum up to 180.
12x+12+3x+18+15=180
(simplify)
(12x+3x)+(12+18+15)=180
(15x)+(45)=180
then subtract 45 from both sides
15x+45-45=180-45
15x=135
then divide both sides by 15
= 
x=9
12x+12+3x+18+15=180
(simplify)
(12x+3x)+(12+18+15)=180
(15x)+(45)=180
then subtract 45 from both sides
15x+45-45=180-45
15x=135
then divide both sides by 15
x=9
Answer:
Step-by-step explanation:
Let be the cost in dollars of the puck.
You need to analize carefully the information given in the exercise.
It is important to remember that the word "twice" indicates multiplication. Then "<em>Twice the cost of the puck</em>" can be represented with the following expression:
The word "more" indicates Addition.
So, "<em>$9 more than twice the cost of the puck</em>" means that must add 9 to the product of to find the cost of purchasing a hockey stick. Then, this can be written as:
Based on the explained above, you can determine that the given phrase <em>"The cost of purchasing a hockey stick and puck if the stick costs $9 more than twice the cost of the puck"</em> can be represented as the sum of and
.
Therefore, the algebraic expression is: