Step-by-step explanation:
x = speed of hiker1
because they meet, between the 2 of them, together they cover 15 miles in 2 hours.
2×x + 2×(x + 2.7) = 15
2x + 2x + 5.4 = 15
4x = 9.6
x = 2.4 mph
so one hiker was going 2.4 mph,
the other 2.4 + 2.7 = 5.1 mph.
Answer:
As x gets bigger, y is now getting smaller.
Step-by-step explanation:
A fancy way to say this is that the function y = 2-x is what we get when we reflect y = 2x across the y-axis.
Yes.
The triangle inequality theorem states that a triangle is possible if the sum of two sides is larger than the 3rd side.
In this case, the sides are 4, 5 and 6.
4+5 is bigger than 6
4 + 6 is bigger than 5
5 + 6 is bigger than 4.
The sum of any 2 sides is always larger than the 3rd side, so this triangle is possible.
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Answer: <u>Yes</u>
Katie won't have more than 100 shells until the 7th day.