All categories

3 years ago

How I divide by negative?? I forgot completely

Mathematics

2 answers:

xz_007 [3.2K]3 years ago

7 0

<h3>Answer:</h3>

Divide like you normally would, the result will be the same as positive-number-quotients, but the quotient will be negative.

<h3>Example:</h3>

10 ÷ -5

<em>since 5 is the dividend, 5 goes into 10 two times but note that it's negative two because of the negative division logic.</em>

= -2

allochka39001 [22]3 years ago

3 0

Answer:

I hope this helps. If I misunderstood the question let me know

Step-by-step explanation:

1. When dividing a negative by a negative, your answer would be positive.

2. When dividing a negative by a positive, your answer will be negative.

3. When dividing a positive by a negative,your answer will be negative.

You might be interested in

While Brendan is vacationing with his family at the cabin, they take a motorboat on the river. The motorboat travels

taurus [48]

Part 1: The speed of the boat traveling downstream is $(18+w)$ miles per hr.

The speed of the boat traveling upstream is $(18-w)$ miles per hr.

Part 2: The speed of the current is 4 miles per hour.

Explanation:

Part (1): The motorboat travels 18 miles per hour in still.

Let w represents the speed of the current.

When the boat travels downstream, the speed of the current will get added to the speed of the boat.

Thus, the expression can be written as $(18+w)$ miles per hr

Hence, the speed of the boat traveling downstream is $(18+w)$ miles per hr.

When the boat travels upstream, the speed of the current will get subtracted to the speed of the boat.

Thus, the expression can be written as $(18-w)$ miles per hr.

Hence, the speed of the boat traveling upstream is $(18-w)$ miles per hr.

Part (2): The boat travels 49 miles upstream in the same time it takes to travel 77 miles downstream.

The distance formula is given by $distance $=$ speed $\times$ time$

Substituting, we have,

$49=(18-w)t\\49=18t-wt$ ---------------(1)

$77=(18+w)t\\77=18t+wt$ ---------------(2)

Solving using elimination method,

$49=18 t-w t\\77=18 t+w t\\-------\\126=36t$

Dividing both sides by 36, we have,

$t=3.5$

Substituting $t=3.5$ in $49=18 t-w t$ , we get,

$49=18(3.5)-w (3.5)\\$

$49=63-3.5w\\$

$-14=-3.5w\\$

$4=w$

Thus, the speed of the current is $w=4$ miles per hour.

5 0

4 years ago

In Emily's bead collection1/2 of her beads are red and 1/4 of her beads are green.what fraction of her beads are not red?

natulia [17]

Answer:

1/4

Step-by-step explanation:

6 0

3 years ago

In the following diagram, QR is tangent to circle P. Which of the following could be the missing side lengths? Select all that a

timofeeve [1]

Answer:

QR is tangent to circle P at point Q

=> RQP = 90 deg

=> RQP is right triangle.

=> Applying Pythagorean theorem for right triangle RQP:

QP^2 + QR^2 = RP^2

=>4^2 + QR^2 = RP^2

=> Option A is correct.

(4^2 + (4* $\sqrt{3}$ )^2 = 16 + 48 = 64 = 8^2)

=> Option C is correct.

(4^2 + 3^2 = 16 + 9 = 25 = 5^2)

=> Option D is correct

(4^2 + 2^2 = 16 + 4 = 20 = (2 $\sqrt{5}$ )^2)

Hope this helps!

5 0

4 years ago

Which number line shows 2/3r - 5 > 3

Irina-Kira [14]

Answer:

The third answer is correct

Step-by-step explanation:

Solve the inequality by compensating it like an equation.

7 0

3 years ago

Can anyone help I could really use it

slamgirl [31]

Answer:

-12m-6n

Step-by-step explanation:

Let's break this down systematically

Start:

8m + 2n - 4(5m - 2n)

Use the distributive property

8m + 2n - <u>4(5m - 2n)</u>

8m + 2n - 20m - 8n

Match like terms <em>m </em>and <em>n</em>

8m - 20m = -12m

2n - 8n = -6n

8 0

4 years ago