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liberstina [14]
2 years ago
11

Elisa bought some boxes of pencils for $3.99 each and some boxes of pens at $4.99 each. If p represents the number of boxes of p

encils and b represents the number of boxes of pens, which equation describes the relationship between these two variables if she spent a total of $39.91 on these items?
A. 4.99p + 3.99b = 39.91
B. 4.99p - 3.99b = 39.91
C. 3.99p + 4.99b = 39.91
D. 3.99p - 4.99b = 39.91
Mathematics
1 answer:
vladimir2022 [97]2 years ago
8 0

The equation which describes the relationship between these two variables is 39.91 = 3.99p + 4.99b

Given:

<em>Cost of each box of pencil</em> = $3.99

<em>Cost of each box of pen </em>= $4.99

<em>Total cost</em> = $39.91

let

p = <em>number of boxes of pencils</em>

b = <em>number of boxes of pens</em>

The equation:

<em>Total cost = (Cost of each box of pencil × number of boxes of pencils) + (Cost of each box of pen × number of boxes of pens)</em>

39.91 = (3.99 × p) + (4.99 × b)

39.91 = 3.99p + 4.99b

Therefore, equation which describes the relationship between these two variables is 39.91 = 3.99p + 4.99b

Read more:

brainly.com/question/8957185

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The scale on a map is 1 in. :25 mi. Your measure 6.5 in. Between two towns. What is the actual distance?
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162.5mi

Step-by-step explanation:

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Standard form of a point that goes through-2,4 and the slope is -1/7
lesantik [10]

<u>Answer:</u>

Standard form of a line passing through (-2, 4) and having slope of  -1/7 is x + 7y = 26

<u>Solution:</u>

Given that we need to determine standard form of a line that goes through (-2 , 4) and slope of the line is -1/7

Standard form of line passing through point ( a , b ) and having slope m is given by

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