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2 years ago

Help please I need it please please help me in it

Mathematics

1 answer:

Snezhnost [94]2 years ago

6 0

Answer:

115.08

Step-by-step explanation:

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Graph the equation to solve the system y= -1/2x +3 y= -1/3x +4

zheka24 [161]

Answer:

the solution is (-6, 6)

Step-by-step explanation:

This system, y= -1/2x +3 y= -1/3x +4, can be quickly solved for x by letting y = y:

y= -1/2x +3 = y= -1/3x +4. Then -1/2x + 3 = -1/3x +4. The fractional coefficients should be enclosed inside parentheses:

(-1/2)x + 3 = (-1/3)x +4

Let's remove the fractional coefficients. The LCD is (2)(3) = 6. Multiply all four terms by 6, obtaining:

-3x + 18 = -2x + 24

Combining like terms, we get -6 = x.

Find y: substitute -6 for x in either of the given equations:

y= (-1/2)(-6) +3 = 3 + 3 = 6. So y = 6 when x = -6, and the solution is (-6, 6).

6 0

3 years ago

ms. Omar runs the school tennis club. She has a bin of tennis balls and rackets. For every 5 tennis balls in the bin, there are

anygoal [31]

Answer:

see the explanation

Step-by-step explanation:

Let

x ----> number of tennis balls

y ----> number of tennis rackets

we know that

To find out the ratio of tennis balls to tennis rackets, divide the number of tennis ball by the number of tennis rackets

In this problem we have

$\frac{x}{y}=\frac{5}{3}$

see the model in the attached figure N 1

$y=\frac{3}{5}x$

$y=0.60x$

This is the equation of a linear direct variation

The relationship between the variables x and y is proportional

see the model in the attached figure N 2

4 0

3 years ago

If you bike for 60 kilometers at 30 kilometers per hour and return at 20 kilometers per hour, what is the average speed for the

matrenka [14]

V1=30km/hr
v2=20km/hr
v=2v1v2/(v1+v2)
=2*30*20/(30+20)
=24km/hr

8 0

3 years ago

Find the circumference of a circle whose area is 247 ft2.

gizmo_the_mogwai [7]

Answer:

B is the answer

Step-by-step explanation:

A = πr²

24π = πr²

24 = r²

$\sqrt{24}$ = r

r = $\sqrt{4}$ $\sqrt{6}$ = 2 $\sqrt{6}$

C = 2πr

C = 2π(2 $\sqrt{6}$ )

C = 4 $\sqrt{6}$ π

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2 years ago

A gymnastics center charges a one-time membership fee of $35.75. In addition, the center charges its members $55.50 per class. W

Nitella [24]

I am pretty sure the correct answer is $146.75. Hope this helps!!!!!!!

7 0

3 years ago

Read 2 more answers