3 years ago

Please with explanation

Mathematics

1 answer:

myrzilka [38]3 years ago

6 0

Answer:

7.5 ,9.1 ans. hhfjvfbhhvvnjgvjki

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At a local high school, 40% of the students drink soda regularly, 30% of the students drink coffee regularly, and 10% of the stu

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Step-by-step explanation:

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3 years ago

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2. - 4x + 9y = 14 12x – 10y = -8 ; multiplication

NeTakaya

Answer:

Step-by-step explanation: (Equation 2) = 12(-12+9y/4) - 10y = -8

-144+108y/4 - 10y = -8

-144 + 108y - 40y/4 = -8

-144 + 108y - 40y = -32

108y - 40y = -32+144

68y = 112

Y= 1.64

2-4x+9y=14

12x-10y= -8

2-14+9y = 4x

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3 years ago

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The table shows a linear function. Which equation represents the function.

mote1985 [20]

Answer:

$\large\boxed{f(x)=\dfrac{3}{2}x-1}$

Step-by-step explanation:

$\text{The slope-intercept formula:}\\\\y=mx+b\\\\m\ -\ slope\\b\ -\ y-intercept\\\\\text{The formula of a slope:}\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\\\\\text{From the table we hve two points (0, -1) and (2, 2). Substitute:}\\\\m=\dfrac{2-(-1)}{2-0}=\dfrac{3}{2}$

$\text{Therefore the equation is}\ f(x)=\dfrac{3}{2}x-1\\\\\text{Check for the point (4, 5):}\\\\f(4)=\dfrac{3}{2}(4)-1=(3)(2)-1=6-1=5\qquad\ CORRECT$

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3 years ago

How many inches equal 2 and 1 ninth yards?

olga55 [171]

Answer:

2 1/9 yards will equal to 76 inches.

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2 years ago

What is the value of x in the equation 4x + 8y =40, when y=0.8

Naily [24]

Answer:

x= 8.4

Step-by-step explanation:

y=0.8

4x + 8y =40

4x + ( 8 x 0.8) = 40

4x + (6.4) =40

4x = 40 - 6.4

4x = 33.6

x = 8.4

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3 years ago