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ser-zykov [4K]
3 years ago
12

Caroline drove 350 miles to her grandmothers house. The trip took her 5 1/4 hours. What was her average speed in miles per hour?

Mathematics
2 answers:
Ainat [17]3 years ago
8 0
Her average speed was about 70 mph.
Radda [10]3 years ago
4 0
67.9 or 70 miles per hour rounded
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I have a 3 foot board that needs to be equally decided into 1/2 how many extra peices will I have
anygoal [31]

Answer:

No extra pieces.

Step-by-step explanation:

Given:

Total number of foot board = 3

Equally divided into =  1/2

Question asked:

How many extra pieces will I have = ?

Solution:

By dividing 3 by 1/2 we can find the extra pieces.

                                                                 = 3\div\frac{1}{2}

                                                                 = 3\times\frac{2}{1}

                                                                 = 6

Since, the remainder is zero, thus there is no any extra pieces I have.

7 0
3 years ago
Has a slope of 2 and goes through (5,1)
Slav-nsk [51]

Answer:

y = 2x - 9

Step-by-step explanation:

y= mx + b

plug in slope

y = 2x + b

plug in points

1 = 2 (5) + b

simplify

1 = 10 + b

subtract 10 each side

-9 = b

plug in to original equation

y=2x - 9

8 0
3 years ago
Katy and Jane construct a four-sided wall to surround their castle. The wall has a perimeter of
PilotLPTM [1.2K]

Answer:

The correct length is <em>34 feet</em>.

Step-by-step explanation:

Let us assume that the wall created is a rectangle <em>ABCD</em> as shown in the attached image.

We know that opposite sides of a rectangle are equal.

<em>Perimeter</em> of a <em>closed figure is calculated by adding all the sides of the figure</em>.

Here, from the figure, the perimeter is : AB + BC + CD + DA

AB and CD are equal to length.

BC and DA are equal to width.

So,

Perimeter = 2 \times (length + width) ....... (1)

Here, we are given that <em>perimeter </em>is 100 feet and <em>width</em> = 16 feet

Putting values in equation (1):

100 = 2 \times (16 + length)\\\Rightarrow 50 = 16 + length \\\Rightarrow length = 34 feet

Hence, length is 34 feet.

5 0
3 years ago
Please help! offering 15 points and a thanks with brainiest
abruzzese [7]

Answer:

\huge\boxed{ 12\ people}

Step-by-step explanation:

At least 6 hours means that the people took at least 6 hours and at most any number that is greater than 6. Here the greatest no. is 10.

<em><u>So, the range for this will be 6-10</u></em>

No. of People who sleep for 6-8 hours = 9

No. of People who sleep for 8-10 hours = 3

No. of People who sleep for 6-10 hours = 9+3

=> 12 people

4 0
4 years ago
20 = 7x + 2 - 4x <br> What does x equal
saveliy_v [14]

Answer:

x = 6

Step-by-step explanation:

20 = 7x + 2 - 4x

7x + 2 - 4x  = 20    (switch the sides)

7x - 4x + 2 = 20     (group the like terms together)

3x + 2 = 20            (add similar numbers, in this case it's the both x's)

    -2     -2              (subtract 2 on both sides)

------------------

3x = 18

/3     /3                   (divide both sides by 3)

-------------------

x = 6

5 0
3 years ago
Read 2 more answers
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