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Sunny_sXe [5.5K]
2 years ago
9

Trey runs 7 miles in 50 minutes. at the same rate, how many miles would he run in 75 minutes?

Mathematics
1 answer:
slava [35]2 years ago
8 0

He can run 10.5 miles in 75 minutes

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What is the solution to the compound inequality 5x + 7 ≤ −8 or 3x + 7 > 19?
Korvikt [17]

5x + 7 ≤ −8                        or                     3x + 7 > 19

5x  ≤ - 15                            or                          3x > 12

 x ≤ - 3                              or                             x > 4

Answer

 x ≤ - 3    or   x > 4

8 0
3 years ago
What can probabilities be written as?
vredina [299]

Answer:

Probabilities can be written as fractions, ratios, or as a percentage.

Step-by-step explanation:

If someone asks to flip a coin for heads or tails it has a probability of 1:2, 1/2, or 50% to land on either sides.. They all mean the same value.

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3 years ago
What is the slope of the line below? If necessary, enter your answer as a
alisha [4.7K]

Step-by-step explanation:

Use formula to find the slope/gradient

\frac{y2 - y1}{x2 - x1}

(-5, -1) = (x1, y1)

(5, 11) = (x2, y2)

So,

=  \frac{11 - ( - 1)}{5 - ( - 5)}  \\  =  \frac{12}{10 }  \\  =  \frac{6}{5}

8 0
3 years ago
The graph of f ′ (x), the derivative of f(x), is continuous for all x and consists of five line segments as shown below. Given f
Nataliya [291]

The maxima of f(x) occur at its critical points, where f '(x) is zero or undefined. We're given f '(x) is continuous, so we only care about the first case. Looking at the plot, we see that f '(x) = 0 when x = -4, x = 0, and x = 5.

Notice that f '(x) ≥ 0 for all x in the interval [0, 5]. This means f(x) is strictly increasing, and so the absolute maximum of f(x) over [0, 5] occurs at x = 5.

By the fundamental theorem of calculus,

\displaystyle f(5) = f(0) + \int_0^5 f'(x) \, dx

The definite integral corresponds to the area of a trapezoid with height 2 and "bases" of length 5 and 2, so

\displaystyle \int_0^5 f'(x) \, dx = \frac{5+2}2 \times 2 = 7

\implies \max\{f(x) \mid 0\le x \le5\} = f(5) = f(0) + 7 = \boxed{13}

8 0
2 years ago
Mrs. Reed bought 48 items for her classroom. She bought some glue bottles. She bought 5 times as many pencils as she did bottles
uysha [10]
She bought 40 pencils
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3 years ago
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