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Rudik [331]
3 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:
MrMuchimi3 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]3 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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A. 32 . hope it helps

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3 years ago
Evaluate the Riemann sum for (x) = x3 − 6x, for 0 ≤ x ≤ 3 with six subintervals, taking the sample points, xi, to be the right e
DENIUS [597]
Hello,

Reminders:
$\sum_{i=1}^{n} i= \dfrac{n(n+1)}{2}$



$ \sum_{i=1}^{n} i^2= \dfrac{n(n+1)}{2}$


$ \sum_{i=1}^{n} i^3= \dfrac{n^2(n+1)^2}{4} $


n=6\\
x_{0}=0\\
x_{n}=3\\
\Delta= \dfrac{x_n-x_0}{n}=0.5\\


x_{i} =0+\Delta*i= \frac{i}{2}

$ \sum_{i=1}^{n}\ \Delta*f(x_{i})=\sum_{i=1}^{6}\  \dfrac{i^3/8-6i}{2} $
$= \dfrac{1}{2}\sum_{i=1}^{6}  (\frac{i^3}{8} -6i)=\dfrac{1}{16}*\frac{(6*7)^2}{4}- \frac{9*7}{2}= -3.9575


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9ff7829711a1673b799001e7d65e7199.gif
8 0
3 years ago
Read 2 more answers
How to simplify 7 1\2
Otrada [13]
7 1/2 is already simplified to its lowest terms
6 0
3 years ago
Read 2 more answers
Which shows the most reasonable way to estimate 3 4/7 (-2 1/12) using compatible fractions
docker41 [41]

Answer:

B). 3 1/2(-2) = -7

Step-by-step explanation:

Let's evaluate the expression so as to be able to get the right estimate.

3 4/7 (-2 1/12)

=3 4/7 (-25/12)

= 25/7 * -25/12

= 25/7 * -25/12

= -625/84

= -7 37/84

Approximately it's equal to ,-7

4 0
3 years ago
Can somebody explain Literal equations to solve for a given variable? i am so confused about it
anastassius [24]

The explanation of using Literal equations to solve for a given variable is as explained below.

How to solve Literal Equations?

Literal equations are equations containing two or more variables; at least one independent variable and one dependent variable

To solve a literal equation means to rewrite the equation so a different variable stands alone on one side of the equals sign. We have to be told for which variable we want to solve.

Linear equations in one variable may take the form ax + b = 0  and are solved using basic algebraic operations.

We begin by classifying linear equations in one variable as one of three types: identity, conditional, or inconsistent. An identity equation is true for all values of the variable.

Read more about Literal Equations at; brainly.com/question/1852246

#SPJ1

8 0
1 year ago
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