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2 years ago

Pls Help! Which equation matches the given points?

Mathematics

1 answer:

ira [324]2 years ago

5 0

Answer:

D) y = −2/5x

Step-by-step explanation:

In the equation for a line ...

y = mx +b

the constant 'b' is the y-intercept of the line. The y-intercept is the value of y when x = 0.

The point (0, 0) tells you the y-intercept is 0, or b=0. That reduces the equation to the form ...

y = mx

The value of m is most easily found if you have a point where x=1. In that case, ...

y = 1m

y = m

In the given list of points, there is one that is helpful here: (1, -0.4). That is, the equation for the given points is ...

y = -0.4x

The answer choices are given as fractions, so you must convert -0.4 to the fraction -2/5.

y = -2/5x . . . . describes the given points

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Marvin earns $8.25 per hour at a summer job. He wants to buy a video game system that cost $206.25 write an equation to model th

Olin [163]

Amount Earned (E) = 8.25*Hours (H)

Since he wants to buy a game system you can also write this as an inequality, if the amount of the game system has any relevance in the problem.
8.25*H >= 206.25

8 0

3 years ago

I need help for solving 4.8(x+4)=2.16

Bas_tet [7]

I hope this helps you

4,8 (x+4)=2,16

48 (x+4)=21,6

x+4=21,6/48

x+4= 0,45

x=0,45-4

x= -3,55

5 0

3 years ago

Read 2 more answers

Evaluate a/b for a = 1/2 and b = -3/7 Answers: 3/14 -32/21 -3/14 -7/6

lapo4ka [179]

1/2 ÷ -3/7 = -7/6 The answer is -7/6

3 0

3 years ago

A total of 1,650 boxes of Girl Scout cookies were sold last week. Each large box cost $3.50 and each small box cost $2.00. The G

s344n2d4d5 [400]

Answer:

900 large boxes were sold, and 750 small boxes.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

x is the number of large boxes of cookies sold.

y is the number of small boxes of cookies sold.

A total of 1,650 boxes of Girl Scout cookies were sold last week.

This means that

$x + y = 1650$

$x = 1650 - y$

Each large box cost $3.50 and each small box cost $2.00. The Girl Scout group earned $4,650.

This means that

$3.5x + 2y = 4650$

Since $x = 1650 - y$

$3.5(1650 - y) + 2y = 4650$

$5775 - 3.5y + 2y = 4650$

$1.5y = 1125$

$y = \frac{1125}{1.5}$

$y = 750$

$x = 1650 - y = 1650 - 750 = 900$

900 large boxes were sold, and 750 small boxes.

8 0

2 years ago

Please help me im new idk how to do any of this.Please help i suck at math

FromTheMoon [43]

Answer:

x=85

Step-by-step explanation:

Hope this helps you :))

(Hope it doesn't get reported becuase it "doesn't have an explanation of how it's right") Have a blessed day ^-^

7 0

3 years ago