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Zanzabum
3 years ago
8

7 + (-14) What is the sum

Mathematics
1 answer:
Mila [183]3 years ago
5 0

Answer:

-7

Step-by-step explanation:

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Dante runs 7 miles in 60 minutes. At the same rate, how many miles would he run in 24 minutes?
denis23 [38]
<h2>Answer: 2.8 miles</h2>

Step-by-step:

We can write it in the proportion \frac{7}{60} = \frac{x}{24}

where x is our number of miles trying to find

We now cross multiply or use the butterfly method which I will demonstrate both

<h3>Cross Multiply</h3>

We multiply the numerator with the dominator

so 7 multiplied by 24

and 60 multiplied by x

7*24=60x

168=60x

\frac{168}{60} =\frac{60x}{60}

2.8=x or x=2.8

Now for the

<h3>Butterfly Method </h3>

You would do 7 times 24 divided by 60 or \frac{7*24}{60}

Then\frac{168}{60} simplify

2.8 so 2.8 miles in either method

3 0
3 years ago
David cut a board 20 foot long into four equal pieces. Which expression does NOT equal the length of one of the pieces in feet?
AURORKA [14]

Answer:

the awnser would be a

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What value of x satisfies the equation x + 3 = -(x + 1)? a. x = 8
ludmilkaskok [199]

Answer:

-2

Step-by-step explanation:

x + 3 = -(x + 1)

open the bracket

x + 3 = -x -1

x+x= -1-3

2x= -4

X = -4/2= -2

8 0
3 years ago
2.) What is the mean number of boys in the three classes? What is the mean number of girls in the three classes?
Luden [163]
1.for boys is 13 and for girls it is 14 2. no mode 3. 13.5
3 0
3 years ago
Read 2 more answers
Order these from greatest to least: 1/8; 0.14; 1/5; 13%
Rasek [7]
1/5, 0.14, 13%, 1/8, it requires me to have more characters in the answer...
3 0
3 years ago
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