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Sergio039 [100]
3 years ago
10

2(x - 3) = 14; x = helppppp

Mathematics
2 answers:
ra1l [238]3 years ago
8 0
ANSWER:
x=10

STEP BY STEP:
Hope this helps. :)
ruslelena [56]3 years ago
3 0

Answer:

x= 10

Step-by-step explanation:

2(x - 3) = 14

2x - 6 = 14

      +6   +6

      2x = 20

         x = 10          

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If x varies as y and if x=20 when y=9 , find x when y=18​
andrezito [222]

Answer:1/2 y

Step-by-step explanation:

We can solve this using ration reasoning:  

x

2

x

1

=

y

2

y

1

Explanation:

If  

x

varies directly with  

y

(written  

x

∝

y

), then doubling  

y

means doubling  

x

, so the rations of final values and initial values will be the same:

x

2

x

1

=

y

2

y

1

In this case,

x

2

9

=

24

18

x

2

=

9

⋅

24

18

=

12

Or, intuitively, if  

x

∝

y

and  

x

=

9

when  

y

=

18

, we can conclude that

x

=

1

2

y

and  

1

2

of 24 is 12.

3 0
3 years ago
Can you help me solve this radical equation √y-10 = y-2 the sqrt sign is only over the y-10
matrenka [14]
D:y-10\geq0 \wedge y-2\geq0\\
D:y\geq10 \wedge y\geq2\\
D:y\geq10\\\\
\sqrt{y-10}=y-2\\
y-10=(y-2)^2\\
y-10=y^2-4y+4\\
y^2-5y+14=0\\
\Delta=(-5)^2-4\cdot1\cdot14=25-56=-31\\
\Delta
7 0
3 years ago
Alana earnerd money doing chores. Her grandmother agreed to add $4.00 to the amount Alana earned and then give her half of that
vitfil [10]

Answer:

Hence amount of Alana's donation is $4.5.

Step-by-step explanation:

Amount of Alana's donation = x

Her grandmother agreed to add $4.00 to the amount Alana earned.

So new amount of money = (x+4)

She gives only half of the sum which is (x+4)/2.

She gave her $4.25 so both values must be equal.

\frac{\left(x+4\right)}{2}=4.25

x+4=4.25*2

x+4=8.5

x=8.5-4

x=4.5

Hence amount of Alana's donation is $4.5.

6 0
3 years ago
What is the correct number form for “one and twenty-five thousandths.”
belka [17]

Answer: 1.02500

Step-by-step explanation:

6 0
3 years ago
How many lines of symmetry does a triangle have?
lora16 [44]
It has three lines of symmetry.
5 0
2 years ago
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