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Anna007 [38]
3 years ago
5

Solve: 2x+1-14x=-71 This is for 7th grade mathematics. Please help!

Mathematics
1 answer:
hjlf3 years ago
5 0

Answer:

6

Step-by-step explanation:

    Pull out like factors :

  -12x + 72  =   -12 • (x - 6)  

Step  2  :

Equations which are never true :  

Solve :    -12   =  0  

A non-zero constant never equals zero.

Solving a Single Variable Equation :  

Solve  :    x-6 = 0  

Add  6  to both sides of the equation :  

                     x = 6

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RoseWind [281]
(-5,1) hope this helps you
7 0
3 years ago
54 is 60% of what number?
Genrish500 [490]
Let, the number = x

Then, x * 60% = 54

x * 0.60 = 54

x = 54 / 0.60

x = 90

In short, Your Answer would be: 90

Hope this helps!
6 0
4 years ago
Read 2 more answers
These are the first four terms of a sequence. 3 -1 -5 -9. Find the nth term.​
podryga [215]

Answer:

4n-1

Step-by-step explanation:

Diffrence bweetween each number, 3 and -1, -1 and -5, -5 and -9 is 4

4n

find the closest numbers

4*1=4

4*0=0

4*-1=-4

4*-2=-8

now we figure out how to make these numbers into our terms of this sequence

4n-1

4*1-1=3

4*0-1=-1

4*-1-1=-3

4*-2-1=-9

so the nth term is 4n-1

4 0
2 years ago
Simplify the following expression. 3^11/5 divided by 3^-9/5
san4es73 [151]

Answer:

Answer is 81.

Step-by-step explanation:

Given two expressions are 3^{\frac{11}{5} } and 3^{-\frac{9}{5} }

Now we divide first expression by the second.

\frac{3^{\frac{11}{5} }}{3^{-\frac{9}{5} } }

3^{\frac{11}{5} }.3^{\frac{9}{5} }

3^{\frac{11}{5}+\frac{9}{5}} = 3^{\frac{20}{5} }=3^{4}=81

Therefore 81 is the answer.

6 0
3 years ago
Read 2 more answers
Henry predicted whether he got answers right or wrong in his 50 question exam. He identified the 36 questions he thought he got
Paha777 [63]

Answer:

84%

Step-by-step explanation:

Henry completed a total of 50 questions. From these 50 he predicted 36 were right and this means he also predicted that 14 were wrong (50-36 = 14). From these predictions 5 out of 36 from the ones that he predicted were right were actually wrong and 3 of the 14 questions (14-11 = 3) he predicted were wrong were actually right. Meaning in total he wrongly predicted 8 questions which means he predicted 42 correctly ...

42 / 50 = 0.84 = 84%

Therefore, Henry's prediction accuracy is 84%

6 0
3 years ago
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