Step-by-step explanation:
first you have to take all similar variable on the same side of the equation and the constants on the other side then solve the question .
example : -12x + 9 = -15x
-12x +15x = -9
3 x = -3
X = -3/3= -1
x = -1
like this you can solve all the other equation ..
<em>Hope </em><em>this </em><em>will </em><em>be</em><em> helpful</em><em> to</em><em> you</em><em> </em><em>.</em><em>.</em>
<em>plz </em><em>mark</em><em> my</em><em> answer</em><em> as</em><em> brainlist</em><em> </em><em>if </em><em>you</em><em> </em><em>find </em><em>it </em><em>useful</em><em>.</em><em>.</em>
5a + 4.75b = 72.50 is the equation in standard form to represent the situation
<h3><u>Solution:</u></h3>
Let the number of bucket sold be ‘a’ at $5 each and the number of hotdogs sold be ‘b’ at $4.75 each. Then after 1 hour she makes $72.50
So, on the basis of the above problem we can make an equation as follows:-
<em><u>The equation for number of popcorn and hotdogs sold after 1 hour:
</u></em>
$72.50 = number of bucket sold x price of popcorn per bucket + number of hotdogs sold x price of hotdog
72.50 = 5a + (4.75)b
5a + 4.75b = 72.50
The above Equation is equivalent to the standard form of linear equation which is Ax + By = C
where A, B, and C are real numbers, and A and B are both not zero
Hence, the best choice is standard form as it has two variables in it we can solve the equation to get the value of variables in it
<span>x^4-9x^2+ 14
=(x</span><span>^2 - 7)(x^2 - 2)
solve for x
</span><span>x^2-2 = 0</span><span>
</span>x^2 = 2
x = <span>+√<span> 2 </span></span> = + 1.4142 and x = -√ 2 = - 1.4142<span>
</span>x^2-7 = 0
x^2 = 7
x = + √ 7 = +2.6458 and x = - √ 7 = - 2.6458
answer: 4 solutions
x = +√ 2 = + 1.4142
x = - √ 2 = - 1.4142<span>
</span>x = + √ 7 = +2.6458
x = - √ 7 = - 2.6458
Answer:
No disrespect but u need to clean the camera a bit I want to help but it’s blurry.
Step-by-step explanation: