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Serga [27]
3 years ago
9

Elena bikes 20 minutes each day for exercise. Write an equation to describe the relationship between her distance in miles, D, a

nd her biking speed, in miles per hour, when she bikes: at a constant speed of 13 miles per hour for the entire 20 minutes
Mathematics
1 answer:
nika2105 [10]3 years ago
6 0

Answer:

<h2>D= 3.9 miles</h2>

Step-by-step explanation:

Given data

speed v= 13 miles per hour

time taken t= 20min to hour 0.3 hours

the distance D

We know that the relationship between speed, time, and distance

speed=distance/time

13=D/0.3

(the expression above describes the relationship between  distance, speed, and time)

making D subject of formula we have

D= 0.3*13

D= 3.9 miles

hence the distance is 3.9miles

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we are given

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we can see that

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so, they are coincident............Answer

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A mystery number is multiplied by 11 then 10 is subtracted from it to give you a result of 34. What is the mystery number?
klemol [59]

Answer:

4

Step-by-step explanation:

And let the missing number be x

We can solve using Algebra

11x - 10 = 34

11x = 34 + 10

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Can someone please take a look at the attachment and tell me what the answer is? Serious answers only please!
siniylev [52]
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So far for y≤mx+b we have:

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3 years ago
The sides of a rectangular field are
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Answer:

Step-by-step explanation

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90m = 2{(36x+2) + (2(x+2)}

Opening the inner brackets,

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90 = 2{38x +6}

Open the brackets

90 = 76x + 12

Collect like terms

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78=76x

Divide 78 by the coefficient of x

x = 78÷76

x =1.03m (2d.p)

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