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makvit [3.9K]
3 years ago
11

Michael's teacher bought a box of 124 crayons for the art class to share. The crayons cost $21.08 with tax included. What was th

e cost per crayon?
Mathematics
1 answer:
iVinArrow [24]3 years ago
7 0
Well, that would be $0.17 per crayon with tax. The answer with out tax depends on where they were bought. Tax where I live would be 7%, making the crayons' shelf price $19.60, that would be $0.15 per crayon.
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Given the equations 9x+3/4y=6 and 2x+1/2y=9, by what factor the equation to eliminate y and solve the system through linea would
lions [1.4K]
C -3/2  

Just multiply the second equation by -3/2
this will make the y term = -3/4y 

so adding will eliminate the  y terms.
8 0
2 years ago
Read 2 more answers
A shop makes 3250£ in march in april it makes 3542.50£ what if the percentage increase
babunello [35]

Answer:

1.09

Step-by-step explanation:

3250 x 1.09 =  £3542.50

7 0
3 years ago
McDonalds sells quarter-pound cheeseburgers for .99 cents last saturday.they sold 310 of these cheeseburgers. how many pounds of
Anvisha [2.4K]
The first thing you should do is calculate how many pounds of cheese a hamburger has
 1 hamburger = 1/4 pound of cheese.
 Then, you can make a rule of three to know how many pounds of cheese were sold:
 1 ---> 1/4
 310 ---> x
 Clearing x we have:
 x = ((310) / (1)) * (1/4) = 77.5
 Answer
 they sell last saturday 77.5 pounds of cheese
4 0
3 years ago
Show all work to multiply​
max2010maxim [7]

Answer:

58

Step-by-step explanation:

(2)(4) + (2)(-√-100) + (√-25)(4) + (√-25)(-√-100)

= 8 - 20i + 20i + 50 = 58

7 0
2 years ago
Find the solution of the system x′=−4y,y′=−2x, where primes indicate derivatives with respect to t, that satisfies the initial c
Andreas93 [3]

Answer:2y^2 = x^2+4

Step-by-step explanation:

given is a differntial equation in parametric form as

x'=-4y\\y'=-2x

We can find dy/dx by dividing y' by x'

\frac{dy}{dx} =\frac{-2x}{-4y} \\4ydy =2x dx\\2y^2 = x^2+C

(By separating the variables and integrating)

C is arbitrary constant

When x=-2, y =-2

Substitute to get

8=4+C\\C=4

So solutoin is

2y^2 = x^2+4

is the solution

5 0
3 years ago
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