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Elenna [48]
3 years ago
5

find the x intercept of the graph of the equation y equals -2.65 x + 25. what does the x intercept mean in terms of the situatio

n

Mathematics
1 answer:
natali 33 [55]3 years ago
3 0
Ok so we can see for every 2 cups of medium coffee, the balance goes down 5.30$. So that means that for every coffee, her balance goes down 2.65$. Solving for the x-intercept means how many medium coffees can I get until my balance is 0. First, we have to find the y-int so it's easy. The slope is -2.65 because for every medium coffee, her balance goes down 2.65$. So we have y=-2.65x+b. Plugging in any point, I choose (4,14.40), we get 14.4 = -2.65 × 4 +b. Solving for b we get 25 for the y intercept, meaning the equation is y = -2.65x + 25 . To find the x intercept, we set y=0. So we have 0 = -2.65x+25. Solving for x we get approx. 9.4. We can't have decimals so we round down to 9. So the x int is ≈ 9.4 meaning we can only buy 9 coffee and have a little extra. But, if the problem said how many more coffees can she get, then here is how we do it. Since she already got 4 coffees, and the max is 9, we do 9-4 and we get 5, so she can buy 5 coffeed more.
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The table shows the advertised prices of different quantities of action figures at several toy stores.
vampirchik [111]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Pls help me solve this​
Elodia [21]
Volume = Area of triangle x length


Area of triangle = 1/2 x base x height

Area of triangle = 1/2 x 5 x 4

Area of triangle = 10


Volume = area of triangle x length

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Volume = 120 cm^3
8 0
2 years ago
1. Name angle 'x' <br><br>2. calculate the size of angle 'y' <br><br>​
Burka [1]

Answer:

<h2><u><em>y = 70°</em></u></h2>

Step-by-step explanation:

x = 35° (opposite agles)

y = 180 - 35 - 75

y = 70

-----------------------

check 35 + 75 + 70 = 180°

the answer is good

7 0
2 years ago
the formula y-y=m(x-x) is the point -slope from of the equation of a line where m is the slope of the line and (x,y) and ( x,y)
hodyreva [135]
(4,-2)(5,0)
slope(m) = (0 - (-2) / (5 - 4) = 2/1 = 2
there is going to be 2 possible answers...

y - y1 = m(x - x1)
now we sub

using points (4,-2)..... y -(-2) = 2(x - 4) =
y + 2 = 2(x - 4) <==

using points (5,0)....y - 0 = 2(x - 5) <==



8 0
3 years ago
Describe what math step you would do to solve this equation ?
Vanyuwa [196]

Answer:

Multiply each side by 14.7

Step-by-step explanation:

cos 50 = m / 14.7

Multiply each side by 14.7

14.7 cos 50 = m /14.7 *14.7

 14.7cos 50 = m

6 0
3 years ago
Read 2 more answers
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