All categories

3 years ago

Jerome hiked three fourths of a mile in two thirds of an hour. How many miles can Jerome hike in one hour?

Mathematics

1 answer:

KatRina [158]3 years ago

7 0

Answer: 1.125 miles

Step-by-step explanation:

2/3 hour___3/4 miles

1 hour___X= 1.125 miles

(1*3/4)/(2/3) = 1.125

You might be interested in

Identify the domain and range of the table.

aleksley [76]

The domain and range of the table is 568

7 0

3 years ago

There are 28 students in a class. 13 of the students are boys. Two students from the class are chosen at random. a) If the first

Luba_88 [7]

Answer:

Step-by-step explanation:

3 0

2 years ago

Which of the following is a radical equation? X+ V5 = 12 x² = 16 3+ x^7=13 7-14

MrRissso [65]

The second one is the correct answer

5 0

3 years ago

What are the x-intercepts of the graphed function?

DIA [1.3K]

Answer:

(-2,0) and (2,0)

Step-by-step explanation:

The x-intercepts are where the parabola touches the x-axis (aka when y is 0).

6 0

2 years ago

Apply Crammer's Rule to find the solution to the following quations .2x + 3y = 1, 3x + y = 5

Bond [772]

Answer:

The solution to the equation system given is:

x = 2
y = -1

Step-by-step explanation:

First, we must know the equations given:

2x + 3y = 1
3x + y = 5

Following Crammer's Rule, we have the matrix form:

$\left[\begin{array}{ccc}2&3\\3&1\end{array}\right] =\left[\begin{array}{ccc}x\\y\end{array}\right] = \left[\begin{array}{ccc}1\\5\end{array}\right]$

Now we solve using the determinants:

$x=\frac{\left[\begin{array}{ccc}1&3\\5&1\end{array}\right]}{\left[\begin{array}{ccc}2&3\\3&1\end{array}\right] } =\frac{(1*1)-(5*3)}{(2*1)-(3*3)} = \frac{1-15}{2-9} =\frac{-14}{-7} = 2$

$y=\frac{\left[\begin{array}{ccc}2&1\\3&5\end{array}\right]}{\left[\begin{array}{ccc}2&3\\3&1\end{array}\right] } =\frac{(2*5)-(3*1)}{(2*1)-(3*3)}=\frac{10-3}{2-9} =\frac{7}{-7}=-1$

Now, we can find the answer which is x= 2 and y= -1, we can replace these values in the equation to confirm the results are right, with the first equation:

2x + 3y = 1
2(2) + 3(-1)= 1
4 - 3 = 1
1 = 1

And, with the second equation:

3x + y = 5
3(2) + (-1) = 5
6 - 1 = 5
5 = 5

4 0

2 years ago