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vesna_86 [32]
2 years ago
7

Ten percent of 640 is what number?

Mathematics
2 answers:
Lelechka [254]2 years ago
4 0

Ten percent of 640 is 64.

640/100=6.4

6.4*10=64.

There are many other ways to find this but that is the way I have always used :)

Hope this helps!

Viefleur [7K]2 years ago
4 0
I think the percent of 640 is 64
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Ad libitum [116K]

Answer:

y = 0.25x - 5

Step-by-step explanation:

Given line is 4x + y = 3

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Comparing this with slope-intercept form y = mx + c :

slope of this line is -4

Product of slopes of perpendicular lines = -1

⇒ slope of a line perpendicular to this is \frac{-1}{-4} = \frac{1}{4} = 0.25

This line also passes through the point (-4,-6)

The equation of a line having slope m and passing through a point (h,k) is

y - k = m(x - h)

⇒ equation of line perpendicular to given line is y - (-6) = 0.25×{x - (-4)}

⇒ y + 6 = 0.25×(x + 4)

⇒ y + 6 = 0.25x + 1

⇒ <u>y = 0.25x - 5</u>

This is in the slope-intercept form y = mx + c with slope m = 0.25 and y-intercept (0,-5)

6 0
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Ivanshal [37]

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3 0
3 years ago
Read 2 more answers
Two trains, Train A and Train B weigh a total of 349 tons. Train A is heavier than Train B. The difference in their weights is 2
Ainat [17]

Answer:

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Step-by-step explanation:
Train A = x

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Plug in one equation into another

y+249+y= 349

Simplify

2y+249=349

Subtract 249 from both sides

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Plug it into the x equation to solve for x

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