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Sergio039 [100]
3 years ago
7

Subtract 8-4 1/2. A. 3 B. 4 C. 4 1/2 D. 3 1/2

Mathematics
1 answer:
kicyunya [14]3 years ago
3 0
This was the answer I came up with - 3.5
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Erik drives 19.2 miles in 16 minutes.
Katen [24]

Answer:

Erik's average speed exceeds the speed limit by 6.91 miles per hour.

Step-by-step explanation:

Let suppose that Erik travels at constant speed. Hence, the speed (v), measured in miles per hour, is determined by following equation of motion:

v = \frac{s}{t} (1)

Where:

s - Distance, measured in miles.

t - Time, measured in hours.

Please notice that a hour equals 60 minutes. If we know that s = 19.2\,mi and t = 0.267\,h, then the speed of Erik is:

v = \frac{19.2\,mi}{0.267\,h}

v = 71.910\,\frac{mi}{h}

Which is 6.91 miles per hour above the speed limit.

6 0
3 years ago
What is the difference between Independent and dependent events?
JulijaS [17]

The Answer Is C

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7 0
3 years ago
Read 2 more answers
Larry bought several boxes of baseball cards at a yard sale and ended up with 204
AysviL [449]

Answer:

51

Step-by-step explanation:

204/4=51

6 0
3 years ago
Read 2 more answers
What is the equation, in standard form, of a parabola that contains the following points? (-2,18),(0,4),(4,24)
nydimaria [60]
Y=ax² + bx + c and A(-2,18), B(0.4), C(4,24) given

1)Let's determine 1st the value of c in using the pair of B
4= a(0)² + b(0) + c , c=4 and y=ax²+bx+4

2) Use the pair of A: 18 = 4a -2b + 4===> 4a-2b=14

3) Use C pair: 24 = 16a+4b+4 ==> 16a+4b=20

4) solve the system equation in 2) and 3) and you'll find a=2 and b=-3

Hence the equation  is y =2x²-3x+4



6 0
3 years ago
Write an equation with the solution x=20??
Art [367]
Let's just start with x=20 and then do some algebra to it to make it all complicated
x = 20
2 * x = 2 * 20
2x = 40
2x - 13 = 40 - 13
2x - 13 = 27
5 0
3 years ago
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