Algebra Ch.5 help needed

Mathematics

2 answers:

mariarad [96]4 years ago

8 0

To solve this we would need to make two equations. One equation accounts for the number of hot dogs and sandwiches and the other is the total cost

X + Y = 985

2.95x + 9.95y = 7343.75

Solve for one variable and plug it into the other equation. And solve for the next variable.

X = hotdogs
Y = sandwiches.

nikitadnepr [17]4 years ago

4 0

I just did all of them in the pictures I included so you could check your work.

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In a group of 60 students, 15 liked maths only, 20 liked science only and 5 did not liked any of two subjects. How many of them

evablogger [386]

Answer:

Step-by-step explanation:

Given

n (A) = 15

n (B) = 20

Students who do not like any subject = 5

Hence, number of students who would like either both or either of the two subjects = 60-5 = 55

n (A or B) = n (A) + n (B) - n (A and B)

Number of students linking both the subjects

55 - 15-20

= 55-35 = 20

Number of students linking only one subject = 60-20-5 = 35

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3 years ago

7-18 use part 1 of the fundamental theorem of calculus to find the derivative of the function.

blondinia [14]

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2 years ago

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Slav-nsk [51]

Plan A = 9 +0.17x
Plan B = 21 +0.12x
9+0.17x = 21+0.12x
X=240
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3 years ago

Es LOGICA PROPOSICIONAL, me pueden ayudar porfavor?

madreJ [45]

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