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MatroZZZ [7]
3 years ago
6

The sum of twenty and five times a number is equal to fifty five.write the expression.then solve it.

Mathematics
1 answer:
MrMuchimi3 years ago
5 0
A.)20+5n=55
B.) You subtract 20 from 55 which is 35.
So your left with 5n=35, divide both sides by 5. 35÷5=7
C.)Your answer is 7.
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For what values of x is the rational expression below undefined?
EastWind [94]
(x-4)/(3)(x+5)(x-5)

In order for the rational expression to be undefined, the denominator must be equal to 0.

Thus, set 3(x+5)9(x-5)=0

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HELP A BROTHAAA OUTT​
tekilochka [14]
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3 years ago
Please I need this before 12pm
luda_lava [24]

Answer:

The required formula is:

                                                          {\displaystyle \ a_{n}=a_{1}+(n-1)d}

Step-by-step explanation:

The total number of squares of the the first term = 4

The total number of squares of the the second term = 7

The total number of squares of the the third term = 10

so,

a_1=4

a_2=7

a_3=10

Finding the common difference d

d=a_3-a_2=10-7=3

d=a_2-a_1=7-4=3

As the common difference 'd' is same, it means the sequence is in arithmetic.

So

If the initial term of an arithmetic progression is {\displaystyle a_{1}} and the common difference of successive members is d, then the nth term of the sequence (a_n) is given by:

                         {\displaystyle \ a_{n}=a_{1}+(n-1)d}

Therefore, the required formula is:

                                                          {\displaystyle \ a_{n}=a_{1}+(n-1)d}

3 0
3 years ago
Can someone help me with this please!
Vinil7 [7]

Answer:

This is really easy, take away all 1s and multiplication sign.

Step-by-step explanation:

And then it means 25=25

3 0
3 years ago
Solve using quadratic formula<br> 1. y=3x^2-x-6<br><br> 2. y=-5x+7x+3
nignag [31]
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5 0
2 years ago
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