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3 years ago

Marvin rides his bike at an average speed of 13 miles per hour how far can he bike in 8 hours?

2 answers:

4 0

Since Marvin rides is bike at a speed of 13 miles per hour, and he drives for 8 hours, the answer is simple to find out.

You just multiply 13 miles * 8 hours, which equals to 104 miles.

Hope this helped! c:

Radda [10]3 years ago

3 0

13 x 8 = 104

104 miles

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If tile costs $8.50 per square foot, how much does it cost per inch?

Sphinxa [80]

Answer:

$0.06 per square inch

Step-by-step explanation:

The question should be:

<em>"If tile costs $8.50 per square foot, how much does it cost per square inch?"</em>

<em />

To solve this, we basically need a conversion from feet to inches. BUT 2 times, since we are talking about "square feet" and "square inches".

We know 1 feet = 12 inches

Also, since we are going from square feet to square inches [big to small], we have to divide TWICE.

Thus, we will have:

$\frac{8.5}{12*12}$

We are dividing 8.5 (the cost) by 12, 2 times since we want square feet in square inches. The answer is:

$\frac{8.5}{12*12}=0.06$

So, tile costs $0.06 per square inch

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3 years ago

For what value(s) of k is the linear system consistent? (Enter your answers as a comma-separated list.)

AleksAgata [21]

Answer:

Step-by-step explanation:

Given

$6x_1-9x_2=8$

$9x_1+kx_2=-1$

The given system is $AX=B$ can be represented by

$\begin{bmatrix}6 &-9 \\ 9 & k\end{bmatrix}\begin{bmatrix}x_1\\ x_2\end{bmatrix}=\begin{bmatrix}8\\ -1\end{bmatrix}$

The given system is consistent when determinant of A is not equal to zero

$|A|$

$|A|=6k-(-81)=6k+81$

$k\neq \frac{-27}{2}$

i.e. system is consistent for all value of k except $k=\frac{-27}{2}$

$R-\frac{-27}{2}$

4 0

3 years ago

Read 2 more answers

Walt multiples 25 times 16 using partial products what did walt do wrong

vlada-n [284]

Answer:

first what the full question and if 25*16/2=200

Step-by-step explanation:

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3 years ago

Find the area of the rectangle <br>Pls hurry and answer!!

lana [24]

Answer:

5.4

Step-by-step explanation:

3/5 x 9 is 5.4. To find the area of a rectangle you need to multiply the length times the width.

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2 years ago

YO PLEASE HELP ME ASAP!!! Which explicit function defines this arithmetic sequence?

BartSMP [9]

Answer:

351

Step-by-step explanation:

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3 years ago