Find the speedExample: 396 miles in 6 hours

1 answer:

8 0

To find the speed with given distance and time you just have to divide the distance by time. In this situation it's 396 miles in 6 hours, so it's 396 / 6 = 66 miles in 1 hour. So the speed is 66 mph.

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What is 40 over 30 in decimal form

Inessa05 [86]

Answer:

$\frac{40}{30}$ = 1.33333

Infinite 3's

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3 years ago

Peyton borrowed some money from her friend in order to help buy a new video game system and agreed to pay the friend back a cons

netineya [11]

Answer:

$y=200-25x$

Step-by-step explanation:

According to the problem, the initial condition is $200. If he owed $100 after 4 weeks, that means he paid $25 per week, so that would be the constant ratio. Therefore, the expression would be:

$y=200-25x$

Where $y$ represents the amount owed, and $x$ represents weeks.

So, in the 4 week, that is, $x=4$ he owed:

$y=200-25(4)=200-100=100$

As you can observe, the relation we found first perfectly to the problem. So, the final expression that model this problem is

$y=200-25x$

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3 years ago

Rachel received $650 for her birthday. She purchased a surfboard for $477 and some additional accessories without spending more

lisabon 2012 [21]

<span>No, because the inequality symbol should be less than or equal to 650.</span>

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3 years ago

Read 2 more answers

Given: A, B, and C What is the value of X in the matrix equation AX + B = C?

Ksju [112]

Answer:

Option (2)

Step-by-step explanation:

Given expression is, AX + B = C

$A=\begin{bmatrix}-3 & -4\\ 1 & 0\end{bmatrix}$

$B=\begin{bmatrix}-7 & -9\\ 4 & -1\end{bmatrix}$

$C=\begin{bmatrix}-42 & -20\\ 5 & 4\end{bmatrix}$

AX + B = C

AX = C - B

C - B = $\begin{bmatrix}-42 & -20\\ 5 & 4\end{bmatrix}-\begin{bmatrix}-7 & -9\\ 4 & -1\end{bmatrix}$ = $\begin{bmatrix}-42+7 & -20+9\\ 5-4 & 4+1\end{bmatrix}$