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Angelina_Jolie [31]
3 years ago
7

What is the value of a in the equation , when ? 3 15 21 39

Mathematics
1 answer:
kupik [55]3 years ago
8 0

Answer:

the mean =19.5

Step-by-step explanation:

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Vicky ran 5⁄14 of a mile and walked 1⁄7 of a mile. how much further did vicky run than walk?
raketka [301]
To solve, we need to subtract from these two fractions. In order to do this, we will change one of them to have the same denominator as the other.

We have 5/14 and 1/7
Let us change 1/7

Multiply 2/2 (a form of 1 so it does not change the value of the fraction)

2/2 • 1/7 = 2/14

Now subtract from 5/14
5/14 - 2/14 = 3/14

ANSWER: Vicky ran 3/14 of a mile more
7 0
3 years ago
X / x-2 + x-1 / x+1 = -1 <br><br> Im really confused, please show all steps
Yakvenalex [24]
I cant access paper right now so i can only give the answer

x= 0,1 
3 0
3 years ago
Please help, brainly for whoever gets it done first, correct answers please
lesya [120]

Answer:

-875/79

Step-by-step explanation:

4 0
3 years ago
There is a 4-foot fence that surrounds your backyard. The fence casts a shadow that is 5 feet long. If you are 6 feet tall and s
Strike441 [17]
My shadow would be 7 feet tall.

Since I am standing next to the fence, then whatever difference its actual height and its shadow has, will be the same difference of my shadow to my actual height.

fence: Actual height - 4 ft ; Shadow height - 5 ft; difference - 1 ft
me    : Actual height - 6 ft : Shadow height - ?   ; difference - 1ft

Shadow Height - Actual Height = 1 ft
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Sh = 1ft + 6ft
Sh = 7ft
3 0
3 years ago
Is this answer true. X is 6.<br><br> X+14&gt;5
Anna35 [415]

Answer:

x is a solution

Step-by-step explanation:

X+14>5

Subtract 14 from each side

X+14-14>5-14

x > -9

Substitute the value in

6 >-9

This is true so x is a solution

7 0
4 years ago
Read 2 more answers
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