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3 years ago

Andrew has pencils and erasers. The ratio of the number of his

Mathematics

1 answer:

kirill [66]3 years ago

4 0

Answer:

Step-by-step explanation:

2 : 6 pencil : eraser

? : 36

36 divided 6 = 6

so to get to the unknown value u multiply 2 x 6

which equals 12

You might be interested in

Write as a fraction 30:48 is

katovenus [111]

It would be 30/48 but you still have to simplify it

5/8 is the answer

6 0

4 years ago

Given that the quadratic equation has equal roots (k^2-1)x^2-2kx-3k-1=0

Alik [6]

Answer:

(See explanation for further details)

Step-by-step explanation:

The real expression is:

$(k^{2}-1)\cdot x{{2} - 2\cdot k \cdot x - 3\cdot k + 1 = 0$

The general equation for the second-order polynomial is:

$x = \frac{2\cdot k \pm \sqrt{4\cdot k^{2}-4\cdot (k^{2}-1)\cdot (-3\cdot k + 1)}}{k^{2}-1}$

This condition must be observed for the case of a quadratic equation with equal roots:

$4\cdot k^{2} - 4\cdot (k^{2}-1)\cdot (-3\cdot k + 1) = 0$

$k^{2} + (k^{2}-1)\cdot (3\cdot k + 1) = 0$

$k^{2} + 3\cdot k^{3} - 3\cdot k - k^{2}-1 = 0$

$3\cdot k^{3} - 3\cdot k - 1 = 0$

7 0

3 years ago

I have 18 ones 15 hundreds 15 tens and 8 thousands. What number am i

amid [387]

Find each individual answer and add it together...

18 ones means 18*1=18

15 hundreds means 15*100=1500

15 tens means 15*10=150

8 thousands means 8*1000=8000

Add them...

8000+1500=9500

9500+150=9650

9650+18=<em><u>9668</u></em>

4 0

4 years ago

A line passes through the points (–5, 2) and (10, –1). Which is the equation of the line?

DiKsa [7]

If the line passes through the points (-5,2) and (10,-1), then the equation of the line will be y= -1/5x+1

8 0

3 years ago

What is 7% of 300 pounds

olga55 [171]

Answer:

Step-by-step explanation:

Of means multiply

7% * 300

Change to decimal form

.07 * 300

4 0

3 years ago