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evablogger [386]
3 years ago
14

Mr. Raysor bought crayons and markers for his school. He bought 5 times as many crayons as markers.He bought 30 boxes a total of

30 boxes. How many boxes of crayons and bixes of markers did Mr. Raysor buy?
complete the bar model. Write an equation and solve
Mathematics
1 answer:
adoni [48]3 years ago
7 0

X=markers

5x= crayons

5x+x= 30

6x=30

X=5

5 markers.  25 crayons

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Read 2 more answers
What is the equation of the line that is parallel to the line 5x 2y = 12 and passes through the point (−2, 4)? y = – five-halves
Oduvanchick [21]

Answer:

The answer is

y =  -  \frac{5}{2} x - 1

Step-by-step explanation:

If two equations are parallel it means that both their gradients are equal. We were given the equation:

5x +  2y = 12

in order to find the gradient of this equation that we are given we have to ensure that it is in its simplest form:

5x + 2y = 12 \\ 2y = 12 - 5x \\  \frac{2y}{2}  =  \frac{12}{2}  -  \frac{5}{2} x \\ y = 6  -  \frac{5}{2} x \: \\ or \: \\ y =   - \frac{5}{2} x + 6

Therefore the gradient of the parallel line with points (-2, 4) is also -5/2

y = mx + c \\ 4 =  - \frac{ 5}{2} ( - 2) + c \\ 4 =  \frac{10}{2}   + c \\ 4 = 5 + c \\ 4 - 5 = c \\

c =  - 1 \\ hence \: the \: equation \: for \: the \: \\  parallel \: line \: is \\  \: y =  -  \frac{5}{2} x  - 1

8 0
2 years ago
In a triangle the ratio of angles is 2:3:4 find the angles​
Dmitry [639]

Answer:

40,60,80

Step-by-step explanation:

2x+3x×4x=180

9x=180

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6 0
3 years ago
Which quadratic rule represents the data in the table?
Vaselesa [24]

Answer:

x^2 - 5

Step-by-step explanation:

x = -1, y = 1 - 5 = -4.

x = 0, y = 0-5 = -5.

x = 1, y = 1 - 5 = -4.

7 0
3 years ago
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