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Fynjy0 [20]
3 years ago
14

Matt and Mark went to El Rodeo to have some dinner. Matt ordered 3 tacos and 2 enchiladas, which cost him $4.93. Mark ordered 2

tacos and 4 enchiladas, which cost him $6.38. What is the cost of one taco and what is the cost of one enchilada?
Mathematics
1 answer:
lord [1]3 years ago
8 0

Answer:

The cost of one taco is $0.87 and the cost of one enchilada is $1.16

Step-by-step explanation:

Let the cost of tacos be X

and cost of enchiladas be y

So, by using given data, we have following equations

3X + 2Y = 4.93             (1)

2X + 4Y = 6.38             (2)

So, first multiply 1st equation by 2 and 2nd equation by 3, then subtracting 1st equation by 2nd.

= 2 × ( 3X + 2Y = 4.93)       (1)

= 3 × (2X + 4Y = 6.38)        (2)

= - (6X + 4Y = 9.86)              (1)

= 6X + 12y = 19.14            (2)

= 8Y = 9.28

Y = 9.28 ÷ 8 = 1.16

By putting the value of Y in equation 1, we get

3X + 2(1.16) = 4.93

3X + 2.32 = 4.93

X = 2.61 ÷ 3 = 0.87

Hence, the cost of one taco is $0.87 and the cost of one enchilada is $1.16.

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Which is not an equation of the line going through (3, -6) and (1, 2)?
777dan777 [17]

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B, C

Step-by-step explanation:

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<em>Substitute a pair of coordinates into (x₁, y₁):</em>

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Let's change the above into the slope-intercept form, where by y is the subject of formula.

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<em>+</em><em>2</em><em> on both sides:</em>

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4 0
2 years ago
A manufacturer of televisions subjects the equipment to a comprehensive testing process for all essential functions before the t
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Answer:

The value is   P(X \ge 9) = 0.9138

Step-by-step explanation:

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Generally the distribution of the comprehensive testing of equipment  follows a binomial distribution  

i.e  

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Here C stands for combination hence we are going to be making use of the combination function in our calculators

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Answer:

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5 0
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