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nadezda [96]
2 years ago
14

You plan to buy holiday gifts for your coworkers. You want to buy 3 candles that cost $12.32 after tax and 2 packs of stationary

that cost $8.78 after tax.
How much money will you end up spending on each type of gift?
Mathematics
1 answer:
Alex_Xolod [135]2 years ago
6 0

Answer:

\:

For 3 candles cost $12.32

for 1 , Divide cost from 3

→ 12.32 ÷ 3

» 4.10 for each candle

for 2 packs of stationary cost $8.78

→ 8.78 ÷ 2

» 4.39 for each stationary pack

Total Spending (including tax)

→ 12.32 + 8.78

→ $ 21.10

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Answer:

There were 26 students in his class and the teacher had 83 ml of the solution.

Step-by-step explanation:

Mr. Kohl has a "x" amount of solution, if he divides it by the number of students "n" he'll give each student 3 milliliters  and have a left over of 5 milliliters. If the amount of solution Mr. Kohl had was "x + 21" then he'd be able to give each student 4 milliliters of the solution. From these informations we have:

x = 3*n + 5

(x + 21)/n = 4

x + 21 = 4*n

x = 4*n - 21

Now that we have two equations and two variables we can solve the system of equations, as seen bellow:

3*n + 5 = 4*n - 21

3*n - 4*n = -21 - 5

-n = -26

n = 26

x = 4*26 - 21 = 83 ml

There were 26 students in his class and the teacher had 83 ml of the solution.

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3 years ago
Find the probability that the spinner will land on gray and then purple
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Answer:

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Find the parabola whose minimum is at (−12,−2)(−12,−2) rather than the point given in the book. the parabola's equation is y=x2+
Hoochie [10]
The vertex form of the equation of a parabola is given by

y-k=a(x-h)^2

where (h, k) is the vertex of the parabola.

Given that the vertex of the parabola is (-12, -2), the equation of the parabola is given by

y-(-2)=a(x-(-12))^2 \\  \\ y+2=a(x+12)^2=a(x^2+24x+144)=ax^2+24ax+144a \\  \\ y=ax^2+24ax+114a-2 \\  \\ y=x^2+24x+ \frac{114a-2}{a}

For a = 1,

y=x^2+24x+112

<span>The parabola whose minimum is at (−12,−2) is given by the equation y=x^2+ax+b, where a = 24 and b = 112.</span>
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If Andrew spends 90 cents per litre and he goes 100km within 8.8 litres how far will $20 get him
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Answer: $18.51

Step-by-step explanation:

She paid $50

Her total purchases

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Change = (50 - 31.49) = 18.51

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