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Monica [59]
2 years ago
6

Please help me with this

Mathematics
1 answer:
Delvig [45]2 years ago
3 0

Answer:I believe the answer is A

Step-by-step explanation:

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Amrita thinks of a number. She doubles it, adds 9 , divides her answer by 3 and finally subtracts 1 . She obtains the same numbe
maks197457 [2]

Answer:

Amrita's number is 6

Step-by-step explanation:

x               Double the unknown number

2x             Add 9

2x + 9       Divide the answer by 3

2/3x + 3   Subtract 1

2/3x + 2   Set this equal to the original number

2/3x + 2 = x

-2/3x       -2/3x   Subtract 2/3x from both sides

2 = 1/3x   Multiply both sides by 3

6 = x

5 0
3 years ago
What is the slope of the graph of 4x-8y=11?
Vlada [557]
In the fomr
ax+by=c
-a/b=slope

4x-8y=11
a=1
b=-8
slope=-4/-8=4/8=1/2
6 0
3 years ago
The results of a survey indicate 70% of seventh-graders watch at least one movie during the weekend. Based on this survey of a g
marusya05 [52]

Answer:

35 students

Step-by-step explanation:

70% of 50 = 0.7×50 = 35

5 0
3 years ago
9x2 - 6xy<br> Factorise Fully
tamaranim1 [39]
Remember distributive property, but reverse it
ab-ac=a(b-c)
a is a common factor


find common factors
factor each
9x^2=3*3*x*x
6xy=2*3*x*y
common factor is 3*x or 3x

9x^2-6xy=3x(3x)-3x(2y)=3x(3x-2y)

factored form is 3x(3x-2y)
4 0
3 years ago
Maryanne throws a ball off the top of a building. The table shows the height of the ball in feet, f(t), at t seconds.
grigory [225]

Answer:

quadratic

Step-by-step explanation:

i just took it on edge

7 0
3 years ago
Read 2 more answers
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