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mixas84 [53]
3 years ago
7

The Quinn family drove 228 miles in 4 hours at a constant rate. Which equation can be used to determine how far they traveled ea

ch hour?
Mathematics
2 answers:
anyanavicka [17]3 years ago
6 0
What can be used on this is the distance over time formula, so what you,do is divide 228 by 4 to get the distance traveled in one hour. And 288/4=57. So they traveled 57 mi in one hour. Hope this helped.
velikii [3]3 years ago
4 0
Okay, so all you would have to do is find the unit rate, and to do that, you would divide 4 INTO 228, (228 divided by 4), which would be 57, so they drive 57 miles PER HOUR.
I hope I helped! =D
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What are the similarities and differences between linear equations and arithmetic sequences?
Alona [7]
Similarities:
Have a consistent change for every interval can be represented as functions of a variable points lie on a line.

Differences: linear equations represent all solutions to all x values, whereas arithmetic sequences pick integer spacing 

4 0
3 years ago
Which equation represents a proportional relastionship that has a constant of proportionality equal to 4/5
enyata [817]

Answer:

y= 4/5x

Step-by-step explanation:

A proportional relationship has an equation of the form y = mx. It passes through the origin.

y= 4/5x is the only equation which is in this form.

6 0
3 years ago
How many terms are in the arithmetic sequence 9, 2, −5, . . . , −187?
Fantom [35]
9, 2, -5... so is going down by 7 each time, meaning the "common difference" is -7.

\bf n^{th}\textit{ term of an arithmetic sequence}\\\\
a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\
----------\\
a_1=9\\
d=-7\\
a_n=-187
\end{cases}
\\\\\\
-187=9+(n-1)(-7)\implies -187=9-7n+7
\\\\\\
7n=9+7+187\implies 7n=203\implies n=\cfrac{203}{7}\implies \boxed{n=29}
4 0
3 years ago
Which of the following points are on the line given by the equation y = 5x?
ivanzaharov [21]

Answer:

C and E

Step-by-step explanation:

To answer this question, we plug in the X values of the coordinates into the equation to see if they'll give us the corresponding Y value.

(X, Y)

Example:

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6 != 5 * 3

We do this for every coordinate point. If the problem doesn't make sense, it doesn't fall on the line. Let's test every one of these.

B. (0, 1)

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15 = 5 * 3

D. (4, 2)

2 != 5 * 4

E. (-1, -5)

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F. (-1, 5)

5 != 5 * -1

* For those who don't know, the !=  is how to say "not equal to" in computer science.

3 0
3 years ago
Jolene invests her savings in two bank accounts, one paying 4 percent and the other paying 8 percent simple interest per year. S
daser333 [38]
The average rate is (4%*2+8%)/3=16/3%=5-1/3%
Therefore the original investment was
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of which 1/3 was at 8% = 22,900
and 2/3 was at 4% = 45,800
Check:45,800*.04+22,900*.08=3664  yay!
8 0
3 years ago
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