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emmasim [6.3K]
4 years ago
10

-3 / 4 + (-2 / 7) - (- 5 ½)

Mathematics
2 answers:
Igoryamba4 years ago
6 0
Answer:
125/28
4.46428571
4 13/28
There all right
Pls mark me brainliest
kotegsom [21]4 years ago
5 0

-6.535

I am learning this too! I hope this answer helps you.

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True or False: A trapezoid is a polygon that has two bases, each with a different length.
elixir [45]
……….Yes it is true that trapezoid is a polygon that has two bases
8 0
3 years ago
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A bus driver follows a morning route and an afternoon route each day. Because there are more cities on the morning route, the av
lisov135 [29]

Answer: The correct option is B, i.e., 40 miles per hour.

Explanation:

Let the speed of bus in the afternoon route be x.

From the given information the average speed is 12 miles per hour less than the afternoon route. So, the speed of bus in the morning route is x-12.

\text{Average Speed}=\frac{\text{Total Distance}}{\text{Total Time}}

So,

\text{Total Time}=\frac{\text{Total Distance}}{\text{Average Speed}}

Time taken by bus in morning route is,

\text{Total Time}=\frac{70}{x-12}

Time taken by bus in afternoon route is,

\text{Total Time}=\frac{100}{x}

Since it is given that the time is same, so

\frac{70}{x-12}=\frac{100}{x}

70x=100(x-12)

70x=100x-1200

30x=1200

x=40

Since x represents the speed of bus in afternoon route, therefore the correct option is B, i.e., 40 miles per hour.

7 0
4 years ago
For the data below, which of the following are true? Choose all that apply.
masha68 [24]

Answer:

Range 40

Mean 99.4

Step-by-step explanation:

There is a mode since the number 104 shows up twice.

The median is not 100 because it is 102.

The range is 40 because 120 is the largest number and 80 is the smallest number.

So 120 - 80 = 40

The mean is 99.4 because when you add all the numbers up and then divide  it by 10 you get 99.4

5 0
4 years ago
Five less than three times a number is 10
maw [93]

Answer:

x=5

Explanation:

3x-5=10

3x-5=10

   +5 +5

3x=15

3x/3=15/3

x=5

7 0
3 years ago
Read 2 more answers
Pls help , need this done by tomorrow.
quester [9]

Answer:

Q matches to a and P matches to b

Step-by-step explanation:

This is a volume question so we can use the volume of a cylinder to see which one corresponds to what.  Volume of a cylinder is \pir^{2}h.  We know that the heights of the cylinders are the same since the diagram says so.  We also know pi is the same since thats a constant.  The only thing thats different is the radius (as you can see radius of P is bigger than Q).  If the radius of P is bigger than Q and all the other things are the same (height is the same and pi is the same), then that automatically means that P has more volume than Q.  More volume means more time to fill up.  Since Q has less volume, it will take less time to fill up.  So now we look at the graph.  A shows that the height of water increases at a faster rate than that of B.  This is because there is less volume in that container (less volume=less time to fill up).  Therefore a matches to Q and therefore b matches to P

3 0
3 years ago
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