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miskamm [114]
3 years ago
5

__ + 15 - 15 = 21 what is the blank number

Mathematics
2 answers:
saw5 [17]3 years ago
7 0

Answer:

Step-by-step explanation:

21 is the blank number as +15 and -15 cancels out

pickupchik [31]3 years ago
6 0

Answer:

the answer is 21

Step-by-step explanation:

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Graph a line with a slope of -3 that contains the point (4, -2)
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Answer:

Step-by-step explanation:

Given that

Slope m=-3

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Equation of a line can generally be written as

y=mx+c

Where, m is the slope

And c is the intercept on y-axis

Since we are given m=-3

Then, y=mx+c becomes

y=-3x+c

To get c, let substitute the point given, i.e x=4 and y=-2

y=-3x+c

-2=-3(4)+c

-2=-12+c

-2+12=c

c=-2+12

c=10

y=mx+c, then m=-3 and c=10

Then, the equation the line becomes y = -3x + 10

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5 0
3 years ago
The number of households without a computer at home in 2009 was closest to A)801000 B)1153000 C)1737000 D)3433000 E)4017000
bagirrra123 [75]

Answer:

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Step-by-step explanation:

Given

See attachment

Required

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From the attachment, we have:

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So, the actual number is:

Number = p * n

Number = 22.3\% * 5170000

Number = 1152910

Number \approx 1153000

<em>Hence: (B) is correct</em>

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3 years ago
what measuring tool did ancient mathematics have and how do they compare to the measuring tools we have today?​
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Step-by-step explanation:

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step my step explanation

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