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4 years ago

I do not have one idea on how to do this, honestly i need help badly.

2 answers:

5 0

So hmm let's say

t = number of movie tickets purchased
m = number of meals bought

so... he earns 0.5 for each ticket... so if he bought "t" tickets, he then earned 0.5*t or 0.5t , whatever that is

and if he bought "m" meals, since each one is $2 earnings, then he earned 2 * m or 2m, whatever that is

is just so happen, we know, for last month he earned on his rebates $25
thus

0.5t + 2m = 25

it just so happen we also know he bought 22 movie tickets last month
thus

$\bf 0.5(22) + 2m = 25\implies 11+2m=25\implies 2m=25-11
\\\\\\
2m=14\implies m=\cfrac{14}{2}\implies \boxed{m=7}$

RUDIKE [14]4 years ago

3 0

<span>It would be 0.5x + 2y = 22</span>

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Q)on a book case there are 35 science books ,28 history books,10 cook books,and 10 mystery novel .how many books are on the book

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Answer:

Step-by-step explanation:

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4 years ago

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(-4, 7), (-6,-4)<br><br> find the slope of the line through each pair of points

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Answer:

slope = 11/2

Step-by-step explanation:

If you are given two points, you can find the slope using the point-slope equation. The equation looks like this:

y₁ - y₂ = m(x₁ - x₂)

In this form, "m" represents the slope, "x₁" and "y₁" represent the values from one point, and "x₂" and "y₂" represent the values from the other point. You can plug the values from the points into the equation and simplify to find the slope.

Point 1: (-4, 7) Point 2: (-6, -4)

x₁ = -4 x₂ = -6

y₁ = 7 y₂ = -4

y₁ - y₂ = m(x₁ - x₂) <----- Point-slope form

7 - (-4) = m(-4 - (-6)) <----- Insert values

11 = m(2) <----- Simplify

11/2 = m <----- Divide both sides by 2

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2 years ago

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The area of a square is 4 square meters. How long is each side? Please show every step.

inessss [21]

Since you're trying to find the side lenghts of a square, all we need to do is square root the area. So, the square root of 4 (the area) is 2.

So, all of the sides of the square are 2 meters long.

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3 years ago

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Jay owns some DVDs. Lamar lives next to Jay and three houses from Freda. Lamar has 2 fewer DVDs than Jay. Davina lives on the ot

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Answer:

Step-by-step explanation:

Freda lives in house 6. Lamar lives 3 houses from Freda, so lives in house 3. Jay lives next to Lamar, but not in house 2, which is Bart's. So, Jay lives in house 4 and Davina lives in house 5, on the other side of Jay from Lamar.

Davina lives in house 5, so has the most DVDs.

Since Freda gave p DVDs to Jay, she has 17-p. Lamar has p-2, Bart has p+4, Tara has 4p-13, and Davina has the most at 3(p-2).

We want Davina to have the most DVDs, so there are some inequalities that must be true:

3(p-2) > 4p-13 ⇒ p < 7

3(p-2) > p +4 ⇒ p > 5

The only value of p satisfying both of these requirements is p = 6.

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Tara lives in house 1 and has 11 DVDs.

Bart lives in house 2 and has 10 DVDs.

Lamar lives in house 3 and has 4 DVDs.

Jay lives in house 4 and has 6 DVDs.

Davina lives in house 5 and has 12 DVDs. (the most)

Freda lives in house 6 and has 11 DVDs.

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3 years ago

Of all rectangles with a perimeter of 1313, which one has the maximum area? (give the dimensions.) let a be the area of the r

saw5 [17]

Let the length be l.

Formula of perimeter is P= 2(length +width )

1313 =2 (l+w)

l = \frac{1313}{2}-w

And the formula of area of rectangle = length times width .

A = l*w

A= (\frac{1313}{2}-w )*w

A = \frac{1313w}{2} -w^2

And that's the required objective function .

The equation represents parabola and a parabola is maximum at its vertex .

And the formula of vertex is

w = -\frac{b}{2a} =-\frac{1313}{4}

Substituting this value of w in the formula of area, we will get

A= \frac{1313*1313}{8} -(\frac{1313}{4})^2

Area= \frac{1723969}{16}=107748 \ square \ units .

8 0

3 years ago