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Drupady [299]
3 years ago
15

What is 6 7/8 add 5. 1/4

Mathematics
2 answers:
lys-0071 [83]3 years ago
8 0
12 and 1/8 because you change 5 1/4 into 5 and 2/8. Then you add them togther and get 12 1/8
jolli1 [7]3 years ago
7 0
The answer would be 12 and 1/8
And that . would be an and 
5 and 1/4

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Solve for x on the interval [0, 2pi]<br> Sinx = cosx + 1
lisov135 [29]

Answer:

π

Step-by-step explanation:

Solve for x on the interval [0, 2pi]

Given the equation

Sinx = cosx + 1

Square both sides of the equation

Sin²x = (cos x + 1)²

Sin²x = cos²x + 2cos x + 1

Since Sin²x = 1 - cos²x

1 - cos²x = cos²x + 2cos x + 1

Collect like terms

1-1-cos²x-cos²x-2cos x  = 0

-2cos²x-2cos x = 0

-2cos²x = 2cos x

-cosx = 1

cos x = -1

x = arccos -1

x = 180 degrees

<em>Hence the value of x = π</em>

8 0
3 years ago
Kevin is 39 years old and daniel is 3 years old. how many years will it take until kevin is only 4 times as old as daniel?
Likurg_2 [28]
I hope this helps you

5 0
3 years ago
Last one for today. Please help
denpristay [2]

Answer:

D) (-2,0)

Step-by-step explanation:

(-2,0)

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6 0
3 years ago
Read 2 more answers
At Sunrise Donuts you can buy 6 donuts and 2 kolaches for $8.84. One kolache and 4 donuts would cost $5.36. What is the price of
Lelechka [254]
Set up a system of equations like this, where "k" represents a kolache and "d" represents a donut:

\left \{ {{6d +2k = 8.84} \atop {k+4d = 5.36}} \right.

We're solving for d.  First, we can rearrange the second equation to have it equal k:

k + 4d = 5.36
k = 5.36 - 4d

Next, we can substitute this in for k in the first equation:

6d + 2k = 8.84
6d + 2(5.36 - 4d) = 8.84
6d + 10.72 - 8d = 8.84

Finally, we can get the value of d if we solve this equation:

-2d + 10.72 = 8.84
-2d= -1.88
d = 0.94

You can buy a donut at Sunrise Donuts for $0.94.
3 0
3 years ago
Each week, Kelly works 2 days for 4 hours each day and earns $5 an hour. Len works 5 days for 2hours each day and earns $4 an ho
Leokris [45]
They both earn $40 i believe im right
4 0
4 years ago
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