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Solution for 3x-5=20 equation:
3x - 5 = 20
3x = 20 + 5
3x = 25 (divide both sides by 3 to get x)
3x/3 = 25/3
x = 8.33333333333
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Answer:
15 wins and 6 draws
Step-by-step explanation:
Here I will use indifferently the words tie and draw.
If the team played 30 and lost 9 it must have won or tied 21 games. Lets call w a win and t a tie we have that:
w + t = 21 [equation 1]
The 47 points it gained are due to either victories, that give 3 p, or ties, that give 1 p. So, the total 47 points can be expressed as:
3w + t = 47 [equation 2]
Take now equation 1 and get the value of w in function of t (or t in function of w):
w = 21 - t
Now replace it in equation t:
3(21-t) + t = 47
63 - 3t + t = 47
63 -2t = 47
subtract 63 in both sides:
-2t = -16
t = -16/-2
t = 8
So, the team draws 8 games. Lets replace it in equation 1 to get w:
w + 6 = 21
Subtract 6 in both sides:
w = 15
And the team won 15 games.
Solutions: 15 wins and 6 draws
Answer:
3 1/8 or 3.125.
Step-by-step explanation:
First you would change 1 1/4 to 5/4. Then you would make a proportion of 5/4 or I like to use decimals, 1.25, over 8. Your proportion would look like: 1.25/8 = x/20. Then cross multiply 1.25 and 20 then divide your product by 8. Your final answer is 3.125 or 3 1/8. Hope this helps!
Answer: 177/500
Step-by-step explanation: 0.354/1000 then simplify by 2 and u got 177/500
Answer: 30y2+x and 30y2+x12
Step-by-step explanation:
A polynomial is an algebraic expression consisting of more than one term.
In thise sense, the algebraic expressions are composed of several elements: Terms, Coefficients, Signs, Variables and Exponents. In this case we will focus on the first.
The terms are composed of sign, coefficient, variable and exponent. The terms are separated from each other by the plus sign (+) or the minus sign (-).
For example, in the following expression:
2x-3x
We have two terms separated by the negative sign (-):
2x is the first term
-3x is the second term
Now, according to this explanation, the only two options that have more than one term to be called a polynomial (<em>poly</em> means <u>many</u> and <em>nomial</em> means <u>terms</u>) are the first two:
30y2+x and 30y2+x12