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Savatey [412]
3 years ago
11

Simplify;4t-2k+5k-t? Help

Mathematics
2 answers:
kogti [31]3 years ago
8 0

Step-by-step explanation:

4t-2k+5k-t

=3t -3k

= 3( t-k)

elixir [45]3 years ago
3 0

Answer:

Answer is attached to steps.

Step-by-step explanation:

Those are the steps and the answer attached

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Elena-2011 [213]

Answer:

13.3

Step-by-step explanation:

6 0
3 years ago
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There’s a image what’s the answer?
irina [24]

Answer:

B. 59°

Step-by-step explanation:

<AOC=77°

<BOC=?

THEREFORE,

<AOC=<BOC+<AOB

77° =7x+17+3x

77°-17=7x+3x

60=10x

x=60/10

x=6°

Now,

<BOC=7x+17

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2 years ago
What is the length of a diagonal of a square with a side length of 6?
Studentka2010 [4]

Answer:

D) 6sqrt(2)

Step-by-step explanation:

D² = 6² + 6²

D = 6sqrt(2)

8 0
3 years ago
A circle of radius 10cm had a hole cut out of its centre to form a ring. Find the radius of the hole if the remaining area is 50
valentina_108 [34]

Answer:

7.07cm

Step-by-step explanation:

A=πr2

= 100 π

= 314.159265359/2 (squared)

50% = 157.07963268cm ^2

We look for radius in the area formula

A=πr2

(A / π ) = 157.07963268/ 3.14159265359 =  √50 = 7.07106781187

We do not need to half this as already has been squared.

6 0
3 years ago
While grading her students' most recent quiz on equation solving, Mrs. Jones calculated that approximately forty percent of her
EastWind [94]

The given equation is,

3(-n+4)+5n=2n

Part 1:

Solve the above equation for n.

Using distributive property of multiplication,

\begin{gathered} -3n+3\times4+5n=2n \\ -3n+12+5n=2n \end{gathered}

Now, group the like terms.

-3n+5n-2n+12=0

Now, add the like terms.

\begin{gathered} -5n+5n+12=0 \\ 0=-12 \end{gathered}

0=-12 is a false statement.

Since we obtained a false statement, the given equation has no solution.

So, option b is correct.

Part 2:

The option (a) is n=3.

If while solving an equation, a single value is obtained for the variable, then the equation has only a single solution. If n=3 is obtained after solving the equation, then the student should chose option (a) as the answer.

The option (b) is "no solution".

While solving an equation, if we obtain an equation which is mathematically false, then the equation will have no solution. So, no solution is chosen when no value is obtained for n and the final equation is mathematically false.

The option (c) is "infinitely many solutions".

While solving an equation, if we obtain an equation which is mathematically correct such as 0=0, 7=7 etc., then the equation will have infinietly many solutions. So, infinitely many solutions is chosen when no value is obtained for n and the final equation is mathematically correct.

8 0
1 year ago
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