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Marysya12 [62]
2 years ago
8

Need help plese it's easy just im stuck

Mathematics
1 answer:
Morgarella [4.7K]2 years ago
5 0
CROSS MULTIPLICATION my friend
Sorry accidentally pressed answer instead of space down
Cross multiplication is multiplying across the = sign by the denominator and numerator. For example, 10/5=3/x
So we multiply across the = sign, giving us that 10x=15
It is much easier to solve from there; divide by 10 on both sides and x=1.5

3/x=4/20
Same principle applies:
60=4x
÷ by 4 (the coefficient of x)
x=15

2/x=6/10
20=6x
x=20/6 - - > 10/3

8/x=4/11
88=4x
x=22

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You are given an equation of a line and a point. Use substitution to determine whether the point is on the line. y = -x + 3; A(6
Serga [27]

Answer:

The point is NOT on the line.

Step-by-step explanation:

Step 1: Write out equation

y = -x + 3

Step 2: Define point

A(6, 3)

x = 6, y = 3

Step 3: Plug in coordinates

3 = -(6) + 3

3 = -6 + 3

3 ≠ -3

7 0
2 years ago
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Help!! Worth 15 points!
AVprozaik [17]

Answer: (4+1)+(-10+13)=5n+3

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Step-by-step explanation:

3 0
2 years ago
Find the equation of the line shown.
Ymorist [56]

Answer:

y= -2x+9

Step-by-step explanation:

The equation will be written this way :

y= m*x+c

  • m is the slope
  • c is a constant
  • m =( f(4)-f(2))/(4-2)=(1-5)/2= -4/2 = -2
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3 0
3 years ago
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Shkiper50 [21]

Answer:

The price of the soda.

Step-by-step explanation:

The dependent variable is the variable defined to be dependent on another object, typically the independent variable. That means the variable that varies based off of another value is the dependent variable. In this situation, as the number of sodas bought increases, the total price increases. The price varies off of the number of sodas because the increase in sodas causes it to increase. Thus, the price is the dependent variable.

8 0
2 years ago
(-3/4m)-(1/2)=2+(1/4,)
Aleks [24]
(-3/4m) -(1/2)=2+(1/4m)
-(1/2)=2+m
m= -3/2
5 0
3 years ago
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