45=2x +x
X=number of friends the boy has
45=3x
45/3=15
x=15
The boy has 15 friends and the girl has 30 friends
Answer:I don’t know
Step-by-step explanation:
1.) Parallel lines has equal slopes. Line y = -4 has a slope of 0.
Required equation is y - y1 = 0
y - 5 = 0
y = 5
2.) Required equation is y - y1 = m(x - x1); where m is the slope and (x1, y1) = (-3, 4)
y - 4 = -2/3(x - (-3))
y - 4 = -2/3(x + 3)
y - 4 = -2/3 x - 2
y = -2/3 x - 2 + 4
y = -2/3 x + 2
Let be "n" the number mentioned in the exercise.
You need to remember that:
1. In Math word problems:
- The word "times" means multiplication.
- The word "twice" indicates that something is multiplied by 2.
- "Sum" is the result of an Addition.
2. In inequalities, "Less than" is represented with the following symbol:
Then, based on the above, you know that "3 times a number" can be expressed as:
And "Twice the same number":
Therefore, "The sum of 3 times a number and twice the same number is less than 45" can be represented with the following inequality:
The answer is: Option a.
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