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2 years ago

15

Noah and kate are shopping for new guitar strings in a music store. Noah buys 2 packs of strings kate buys 2 packs of strings an

d a music book. the book costs 16$ their total cost is 72$ how much is one pack of strings?

2 answers:

Drupady [299]2 years ago

6 0

One pack of strings cost 14$

guajiro [1.7K]2 years ago

3 0

72-16=56
4x=56 (X is the # of packs of string)
x=14 ( divide by 4 on both sides)

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2 years ago

Х+ Зу = 6<br> бx — бу = 4

Sloan [31]

Answer:

the first one is x= 6-3y or if you are going to solve with the y it will be y =2 - x/3

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Step-by-step explanation:

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3 years ago

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horsena [70]

Answer:

24% chance

Step-by-step explanation:

First, find the total number of graduates in the table, that number is 2610, that will be your numerator.

You will look at the table for the total number of students, that is 10730, that will be the denominator.

Now divide the smaller number/numerator (2610) by the larger number/denominator (10730)

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3 years ago

What is the value of b2 - 4ac for the following equation?<br><br> 2x2 + 3x = -1

andreyandreev [35.5K]

The value of b^2-4ac is known as the discriminant of a quadratic function, and can tell you how many roots exist of this function depending on what it is equal to.

Start by moving the -1 to the other side, as we need this function to equal zero.

2x^2 + 3x + 1 = 0

This is now the standard form ax^2 + bx + c = 0. Plug each value that corresponds into the discriminant equation.

b^2-4ac
(3)^2 - 4(2)(1)
9 - 8
1

The value of the discriminant is 1, meaning that two real roots exist for the function described.

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3 years ago

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m_a_m_a [10]

Answer:

A

Step-by-step explanation:

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2 years ago

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