Answer:
(2, 1) (1, 5) and (4, 3)
Step-by-step explanation:
Basically switch the x and y axes, and depending on the quadrant, switch the negative and positive signs to their appropriate ones.
hope this helps!
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Answer:
a=18
Step-by-step explanation:
Answer:
y=3x+5
Step-by-step explanation:
This is th eanswer because slope intercept form is always y=mx+b.
So, if you simplify the right side of the equation, you then get
y-6=3x-1, I got that because 3 multiplied by -1/3, you get -1.
Then you add 6 to both sides to isolate y by itself. So, now you have
y=3x+5.
Hope this is helpful
I suspect you meant
"How many numbers between 1 and 100 (inclusive) are divisible by 10 or 7?"
• Count the multiples of 10:
⌊100/10⌋ = ⌊10⌋ = 10
• Count the multiples of 7:
⌊100/7⌋ ≈ ⌊14.2857⌋ = 14
• Count the multiples of the LCM of 7 and 10. These numbers are coprime, so LCM(7, 10) = 7•10 = 70, and
⌊100/70⌋ ≈ ⌊1.42857⌋ = 1
(where ⌊<em>x</em>⌋ denotes the "floor" of <em>x</em>, meaning the largest integer that is smaller than <em>x</em>)
Then using the inclusion/exclusion principle, there are
10 + 14 - 1 = 23
numbers in the range 1-100 that are divisible by 10 or 7. In other words, add up the multiples of both 10 and 7, then subtract the common multiples, which are multiples of the LCM.
She had 42 dollars.
(4/7 of 42 is 24 dollars)
