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3 years ago

Debra has ridden 57 miles of a bike course the course is 60 miles long what percentage of the course has Debra ridden so far

2 answers:

8 0

To find the percentage of the course that Debra has ridden so far, we need to divide the number of miles that Debra has ridden by the total number of miles in the course. This is modeled below:

57/60 = 0.95

Next, we should multiply this decimal value by 100 to convert it to its equivalent percentage.

0.95 * 100 = 95

Therefore, Debra has ridden 95% of the course so far.

Hope this helps!

Reptile [31]3 years ago

4 0

Hello!

To find our answer, we just divide.

57/60=0.95

We multiply by 100 to find our percent

100(0.95)-95

Therefore, our answer is 95%

I hope this helps!

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Annie says the two expressions are equalized. Is she correct? Explain using different strategies -3x+6 and 3(-x -2).

borishaifa [10]

Step-by-step explanation:

By using Distributive Property on 3(-x - 2),

3(-x - 2) = (3)(-x) + (3)(-2) = -3x - 6.

Since -3x - 6 =/= -3x + 6,

they are not equalized.

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3 years ago

If BC = 2x, CD = 7x, and BD = 9, what is CD?

Paha777 [63]

Answer: 18

Step-by-step explanation:

2(9)=18

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3 years ago

Write a cubic function whose graph goes through the points: (-5, 0) (1, 0) (2, -2) (4, 0)

Free_Kalibri [48]

Answer:

f(x) = $\frac{1}{7}(x+5)(x-1)(x-4)$

Step-by-step explanation:

Let the equation of the give cubic function is,

f(x) = p(x - a)(x - b)(x - c)

Here, a, b, c and d are the x-intercepts of the given graph.

Since, x-intercepts given in the graph are x = -5, 1 and 4,

Equation of the curve will be,

f(x) = p(x + 5)(x - 1)(x - 4)

Since, the graph of this function passes through (2, -2) also

-2 = p(2 + 5)(2 - 1)(2 - 4)

-2 = -p(14)

p = $\frac{2}{14}$

p = $\frac{1}{7}$

Therefore, equation will be,

f(x) = $\frac{1}{7}(x+5)(x-1)(x-4)$

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3 years ago

To help divide a group into 4 teams, the teacher brought out a bag with equal numbers of 4 different colored popsicle sticks (gr

NeX [460]

The set of all possible events Ω

Ω = 24 ( 4*7 = 28 stick)

set of events favorable A
A = 7 ( sticks of green is 7)

Probability P
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Answer A
The first person has the ability to draw seven green sticks of twenty-four

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3 years ago

THe product of three numbers is 3150. Two of the number are 14 and 15. Find the third number

Sholpan [36]

Answer:

Step-by-step explanation:

Let's call the mystery number x.

$14\cdot 15\cdot x=3150 \\\\210x=3150 \\\\x=3150/210=15$

Hope this helps!

4 0

3 years ago

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