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3 years ago

I need help somebody please help me i'm trying to pass my classes. & take care of my mom please help me.

Mathematics

1 answer:

garri49 [273]3 years ago

6 0

It is 3 you’re welcome

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What value of b will cause the system to have an infinite number of solutions? y=6x-b -3x+1/2y=-3

Serhud [2]

Answer:

b = 6

Step-by-step explanation:

solve the second equation for 'y':

-3x + 1/2y = -3

add 3x to each side to get:

1/2y = 3x - 3

multiply all terms by 2 to eliminate the denominator to get:

y = 6x - 6

now compare '6x-6' with '6x-b'

you want both expressions to be equal because then there are an infinite number of solutions:

b = 6

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3 years ago

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Elden [556K]

The Correct Answer is C.

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A band learns 4 to 6 new songs every month. What is a good estimate for the number of songs the band will learn in 8 months.

Troyanec [42]

Answer:

40 songs

Step-by-step explanation:

On average 4 + 6 = 10 / 2 =5 so on average they learn 5 songs

8 months x 5 songs = 40 songs

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3 years ago

What is the slope of the line?

Yanka [14]

Answer:

$m=\frac{4}{5}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (-2, 0)

Point (3, 4)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m.

Substitute [SF]: $m=\frac{4-0}{3+2}$
Subtract/Add: $m=\frac{4}{5}$

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