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vodomira [7]
3 years ago
10

The distance a bike travels varies directly as the amount of time the bike has been ridden. Angela is riding her bike. If she tr

avels a distance of 60 miles in 2 hours, how far has Angela traveled in 7 hours?
Mathematics
2 answers:
vladimir1956 [14]3 years ago
7 0

Answer:210 miles

Step-by-step explanation:because there is 7 hours so you need to multiply up to six hours so 60 x 3 = 180 or 6 hours + 1 hour = 30 miles so 180+30= 210

Levart [38]3 years ago
4 0

Answer:

420 miles

Step-by-step explanation:

60 ×7=420

thank

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Zinaida [17]
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6 0
3 years ago
Please help don't give me the wrong answer or I will report I need help asap! o-o
alina1380 [7]

Answer:

the answer is D. 377/1134

Step-by-step explanation:

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4 0
3 years ago
please solve it please solve it please solve it please solve it please solve it please solve it please solve it please solve it
katovenus [111]

Since \alpha and \beta are roots of ax^2+bx+c, we can factorize the quadratic in terms of the roots as

ax^2+bx+c = a(x-\alpha)(x-\beta)

Expanding the right side gives

ax^2+bx+c = ax^2-a(\alpha+\beta)x+a\alpha\beta

so that

\alpha + \beta = -\dfrac ba \\\\ \alpha\beta = \dfrac ca

A polynomial with roots \alpha^2 and \beta^2 would be

(x-\alpha^2)(x-\beta^2)

and expanding this gives

x^2 - (\alpha^2+\beta^2)x+\alpha^2\beta^2

Now,

\alpha\beta = \dfrac ca \implies \alpha^2\beta^2 = (\alpha\beta)^2 = \dfrac{c^2}{a^2}

and

(\alpha+\beta)^2 = \alpha^2 + 2\alpha\beta + \beta^2 \\\\ \implies \alpha^2+\beta^2 = \left(-\dfrac ba\right)^2 -2\left(\dfrac ca\right) = \dfrac{b^2-2ac}{a^2}

So we can write the second quadratic in terms of a,b,c as

(x-\alpha^2)(x-\beta^2) = x^2 - \dfrac{b^2-2ac}{a^2}x + \dfrac{c^2}{a^2}

and to make things look cleaner, scale the whole expression by a^2 to get

\boxed{a^2x^2 + (2ac-b^2)x + c^2}

4 0
3 years ago
What two numbers have a product of -15 and a sum of -2​
Strike441 [17]

Answer:

5 and -3

Step-by-step explanation:

5 x (-3) = -15

5 + (-3) = -2

4 0
3 years ago
A recipe calls for 3 cups of sugar and 9 cups of water. How many should be used with 2 cups of sugar?
9966 [12]

Answer:

6 cups of water

Step-by-step explanation:

A recipe calls for 3 cups of sugar and 9 cups of water. How many should be used with 2 cups of sugar?

The question above, is solved below:

3 cups of sugar = 9 cups of water

2 cups of sugar = x

Cross Multiply

3x = 9 × 2

x = 18/3

x = 6

Hence, 2 cups of sugar = 6 cups of water

8 0
3 years ago
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