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xz_007 [3.2K]
3 years ago
15

Brian and Zach went to Village Grille for lunch. Brian‟s lunch cost $4 less than 3 times Zach‟s. The total cost for lunch was $2

5. How much did each boy spend on lunch? (Why did Brian eat so much?)
Mathematics
1 answer:
Nesterboy [21]3 years ago
6 0

Answer:The cost for zachs lunch is 12$, and the cost for brins is 8$

Step-by-step explanation:

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Can anyone help me on what’s -4 - (-3) plsss it’s for my math test
ololo11 [35]

Answer:

-1

Step-by-step explanation:

It is negative 1 because the signs for the -3 are the same so you keep the -4, change the - to a +, then flip the negative 3.

Hope this helps!

7 0
2 years ago
A point moves along the curve y = √ x in such a way that the y-component of the position of the point is increasing at a rate of
Eduardwww [97]

Answer:

The value of x component changes at a rate of \frac{dx}{dt}=4\sqrt{x} units per second

Step-by-step explanation:

We are given that y=x^{\frac{1}{2}}

Differentiating on both sides with respect to time we get

\frac{dy}{dt}=\frac{d\sqrt{x}}{dt}\\\\\frac{dy}{dt}=\frac{1}{2}x^{\frac{-1}{2}}(\frac{dx}{dt})\\\\\frac{dy}{dt}=\frac{1}{2\sqrt{x}}\frac{dx}{dt}

It is given that \frac{dy}{dt}=2units/sec

Solving for \frac{dx}{dt} we get

\frac{dx}{dt}=\frac{dy}{dt}\times 2\sqrt{x}\\\\\frac{dx}{dt}=4\sqrt{x}

5 0
3 years ago
HELP! SHOW ALL WORK AND EXPLAIN. :P
weeeeeb [17]
♥It says that he adds 12$ each week, and by the end of 3 weeks he had 60. Well if you do 12*3
And that =36.
But as you can see its not 60 so we have to find out how much money he had in there before.
He had 24$ in there before he started doing this.
You can find this by doing 36+x=60 and 36+24=60.
Now if you do 12*15
You get 180.
Now add the 24 dollars he already had in there.
180+24=204
He had 204$ at the end of wk.15
♥Hope this helps!♥
7 0
3 years ago
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A line has a slope of 2 and a y-intercept of 0 what is its equation in slope intercept form
Leto [7]

Answer:

y = 2x

Step-by-step explanation:

5 0
2 years ago
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What is the General form of this equation?<br> (x- -1)^2 +(y-1)^2 =225.0
KATRIN_1 [288]
General Form is the most basic form of an equation and is used as a template to form equations designed to solve a specific problem.

The equation given is "<span>(x- -1)^2 +(y-1)^2 =225.0".

The general form of this Equation would be presented as 

</span>·X (+/-) Y = Z
·X^2 (+/-) Y^2 = R1
<span>
-I hope this is the answer you are looking for, feel free to post your questions here on brainly in the future.</span>
4 0
3 years ago
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