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Anni [7]
2 years ago
9

17 x-1=2 Work out the value of 2x2

Mathematics
2 answers:
My name is Ann [436]2 years ago
8 0

Answer:

If 17x-1=2\\, then 2(x)^2\\ will equal \frac{18}{289}

If x-1=2, then 2(x)^2\\ will equal 2\\

Step-by-step explanation:

For the step-by-step solution, please see the attachment. Part A, 17x-1=2\\ and x-1=2, is executed in black ink while Part B, 2(x)^2\\, is executed in blue ink. Detailed justification of each step in green. The given function is provided in red ink.

~~~

If this assisted you with explaining why each step was executed, please don't hesitate to provide a Brainlist. Thank you!

Igoryamba2 years ago
5 0

Answer:

18

Step-by-step explanation:

Given

x - 1 = 2 ( add 1 to both sides )

x = 3

Then

2x² = 2(3)² = 2 × 9 = 18

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To increase an amount by 3% what single multiplier would you use?
loris [4]

3% is the decimal  0.03 .

To make a number 3% bigger, multiply it by  1.03 .

The ' 1 ' part is the amount that's already there, and
the ' .03 ' part is the amount to be added onto it.

3 0
3 years ago
7x+2y=3 and x-3y=30, what is the value of y?
Blizzard [7]

\tt\it\bf\it\huge\bm{\mathfrak{{\red{hello*mate♡}}}}

\tt\it\bf\huge\it\bm{\mathcal{\fcolorbox{blue}{yellow}{\red{ANSWER==>}}}}

_______________________________

<h3>I'm solving it using substitution method:-</h3>

<h3>7x+2y=3 {given}</h3>

<h3>=>7x=3-2y</h3>

<h3>=>x=(3-2y)/7-------(1)</h3>

<h3>x-3y=30 {given}</h3>

<h3>=>x=30+3y</h3>

<h3>=>(3-2y)/7=30+3y {putting the value of x from eqn 1}</h3>

<h3>=>3-2y=210+21y</h3>

<h3>=>3-210=21y+2y</h3>

<h3>=>-207=23y</h3>

<h3>=>y= -207/23= -9</h3>

<h3>putting the value of y on eqn(1):-</h3>

<h3>x=(3-2y)/7</h3>

<h3>x=>(3-2(-9))/7=(3+18)/7=21/7=3</h3>

<h2>Hence, x=3, y= -9</h2>

✌️✌️❤️❤️

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\tt\it\bf\huge\it\bm{\mathcal{\fcolorbox{blue}{yellow}{\red{BE-BRAINLY !}}}}

5 0
3 years ago
Read 2 more answers
Casey wants to buy a gym membership. One gym has a $70 joining fee and cost $35 per month. Another Jim has no joining fee and co
irga5000 [103]

Answer:

same amount at 2 months. he'd pay 140.

Step-by-step explanation:

35(month) +35(month) =70(joining fee). 70+70=140. that's two months at the first gym.

the second gym is also 140 for the two months because each month is $70. and 70+70=140

6 0
3 years ago
if the class charges $15 per ticket write an equation that could be used to determine the number of tickets the class would need
OverLord2011 [107]

t = number of tickets

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so....

step 1. 15t ≥ 1500 --> divide both sides by 15 --> 15t/15 ≥ 1500/15

step 2. t ≥ 100


So 100 at the least, ticket should be sold to reach atleast $1500.


I hope this helps. :)



5 0
3 years ago
Please help, me I just need to know how to set it up the 2 equation on both.
Ronch [10]
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