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3 years ago

3x+y=W Solve for X....

Mathematics

1 answer:

Andre45 [30]3 years ago

6 0

Answer:

x = (W - y)/3

Step-by-step explanation:

3x+y=W

3x = W - y

x = (W - y)/3

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Sally goes to the store and buys a jackhammer for $25. The store is running a discount of 18%. The store has a sales tax rate of

tamaranim1 [39]

Answer:

Jackhammer =$25

Discount= 18%

Final Price= $25*0.82*1.06 = $ 21.73

5 0

2 years ago

determine whether the lines intersect and if so find the point of intersection and the cosine of the angle of intersection x=4t+

Fittoniya [83]

Answer:

As the lines are not intersecting nor parallel, they must be skew.

Step-by-step explanation:

Question is incomplete, we consider the nearest match available online.

Parametric equations of two lines are:

L₁ : x=4t+2 , y = 3 , z =-t+1

L₂: x=2s+2 , y= 2s+5 , z = s+1

If lines are parallel then parametric coordinates must be equal scalar multiple of each other which s not true here.

$4t+2=2s+2 ---(1)\\ \\3=2s+5---(2) \\\\-t+1=s+1---(3)$

If lines are intersecting then parametric coordinates must be equal for some value of t and s.

$From (3)\\-t=s\\From (2)\\\\s=\frac{3-5}{2}\\\\s=-1\\\implies t=1\\\\To\,\,check\,\, the \,\,values \,\,of \,\,s\,\, and \,\,t \,\,for\,\,intersection\,\,put \,\,them\,\, in\,\, (1)\\\\4(1)+2= 2(-1)+2\\ 6\ne0$

Hence the lines are not intersecting nor parallel, they must be skew.

6 0

3 years ago

What is the volume in cubic units of a cylinder diameter 6 and height 4

katrin2010 [14]

Hey there!

The formula for the volume of a cylinder is $\pi r^{2} h$ , which is essentially the base multiplied by the height.

If our diameter is six, then our radius is three, so we can solve for our base below. We will use 3.14 for pi.

$3^{2}(3.14)=28.26$

Now, we multiply this by our height of four.

$28.26(4)=113.04$

Therefore, our volume is 113.04 cubic units.

I hope this helps!

3 0

2 years ago

Karina needs a total score of at least 627 on three games of bowling to break the league record. Suppose she bowls 222 on her fi

irga5000 [103]

X+y+z≥627
x=222
y=194

222+194+z≥627
if we solved for z then
z≥221

3 0

3 years ago

Line n intersects lines 1 and m, forming the angles shown in the diagram below.

bija089 [108]

Answer:

B. 4.5

Step-by-step explanation:

(6x + 42)° and (18x - 12)° are alternate interior angles. If line l is parallel to line m, therefore,

6x + 42 = 18x - 12

Solve for the value of x. Combine like terms.

6x - 18x = -42 - 12

-12x = -54

Divide both sides by -12

-12x/-12 = -54/-12

x = 4.5

Therefore, x = 4.5 would prove lines l and m are parallel to each other.

7 0

3 years ago