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3 years ago

6W - 12x + 7w - 8x =

Mathematics

1 answer:

REY [17]3 years ago

6 0

6W (-12x) + 7W (-8x) = 13W - 20x
Explanation:
6W + 7W = 13W
-12x - 8x = -20x

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suppose we flipped a coin an rolled a die what is the probability of getting a head on the coin an a six on the die

Anna71 [15]

It will be 2/12, which simplifies to 1/6

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3 years ago

A car travels 312 miles in the same time that a motorcycle traveled 272. If the cars speed is 10mph more than the motorcycles, f

dimaraw [331]

Answer: speed of the car is 88 miles per hour

the speed of the motorcycle is 78 miles per hour

Step-by-step explanation:

Number of miles travelled by car = 312

Number of miles travelled by motorcycle = 272

Let x = speed of the car

Let y = speed of the motorcycle

If the car's speed is 10mph more than the motorcycle's, it means

x = y + 10 - - -- - - 1

Time taken for car to travel 312 miles is distance /speed = 312/x

Time taken for motorcycle to travel 272 miles is distance /speed = 272/y

The car travels 312 miles in the same time that a motorcycle traveled 272.

This means

312/x = 272/y

312y = 272x

y = 272x/312

Substituting y = 272x/312 into equation 1, it becomes

x = 272x/312 + 10

312x = 272x + 3120

312x-272x = 3120

40x = 3120

x = 3120/40 = 78 miles per hour

x = y + 10 = y + 78

x = 88 miles per hour

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2 years ago

In 5 minutes a conveyor belt moves 300 pounds of receyclable aluminum from the delievery truck a smaller belt moves the same qua

ladessa [460]

Answer:

It will take 3.214 minutes.

Step-by-step explanation:

<em>It is given that, the conveyor belt transports 300 cans in 5 mins and the smaller belt transports 300 cans in 9 minutes.</em>

Thus , the speed of conveyor belt is,

= $\frac{300}{5} = 60 cans per minute$

and of smaller belt is,

= $\frac{300}{9} = \frac{100}{3} cans per minute$

Thus, when both are used together,

<em>conveyor belt will transport (60)(t) cans and smaller belt will transport $( \frac{100}{3})$ (t) cans per minute.</em>

Thus the equation becomes,

$300 = (60)(t) + (\frac{100}{3})(t) = (\frac{280}{3})(t)$

t = $\frac{(300)(3)}{280} = \frac{45}{14} = 3.214 minutes$

3 0

3 years ago

What is the answer to y divided by 2 = 17

bija089 [108]

The answer is Y=34
Because 34/17 is 34

7 0

2 years ago

Read 2 more answers

write a linear equation that has a slope of 1/2 and a y-intercept at the origin. (y=1/2x) (y=0x+1/2) (y=1/2x+1/2) (y=-1/2x)

Nesterboy [21]

Answer:

The linear equation with given slope and y-intercept is:

Option 1: $y = \frac{1}{2}x$

Step-by-step explanation:

The slope-intercept form of equation is given by:

$y = mx+b$

Here

m is the slope of the line and b is the y-intercept.

Given that

Slope of line is 1/2 so m = 1/2

And y-intercept is on origin so b = 0

Putting the values we get

$y = \frac{1}{2}x+0\\y = \frac{1}{2}x$

Hence,

The linear equation with given slope and y-intercept is:

Option 1: $y = \frac{1}{2}x$

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3 years ago