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Rudik [331]
4 years ago
12

Annette rode her bike 6.8 miles at a constant rate for 90 minutes. To find how fast she traveled, she solved the equation 6.8=x·

90 . What does x represent?
Mathematics
2 answers:
MrMuchimi4 years ago
8 0
X represents her speed in miles per minute (b). To find her speed she would divide distance by time. If you divide 6.8 miles by 90 minutes and solve for x you will be finding her speed.
ivann1987 [24]4 years ago
3 0

Answer:

x represents the velocity of the bike.

Step-by-step explanation:

If velocity of a vehicle is multiplied by time, the distance that the vehicle goes can be found. Thus, Annette uses this formula to find her bikes velocity.

distance = velocity*time

6.8=x*90

x Represent velocity in this equation.

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Allisa [31]

Answer:

7,854 cm

Step-by-step explanation:

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6 0
3 years ago
Y
kiruha [24]

Answer:

x = 400 when y = 100

Step-by-step explanation:

This is a question in relation to direct variation.

y ∝ \sqrt{x}

y = k \sqrt{x}

Given that, y = 45, x = 81. Then;

45 = k \sqrt{81}

45 = 9k

k = \frac{45}{9}

k = 5

Thus the relationship among the variables is;

y = 5 \sqrt{x}

If y = 100, then;

100 = 5 \sqrt{x}

\sqrt{x} = \frac{100}{5}

\sqrt{x} = 20

x = (20)^{2}

x = 400

Therefore, x = 400 when y = 100.

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3 years ago
Debra has a bookcase with 3 shelves there are b books on each held using b write an expression for the total number of books
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Answer:

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