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Tomtit [17]
3 years ago
15

Write a situation in which positive and negative numbers are used to describe values that have opposite meaning. What does a 0 r

epresent in this situation.
Mathematics
1 answer:
MrRa [10]3 years ago
4 0
This could be a situation in which items are both bought and sold. In calculating the inventory, positive numbers represent items bought, negative numbers represent items sold and 0 would be no items in the inventory.

Another type of situation would be the displacement of an object from the original position. Where 0 would represent the original/starting position, positive values would represent distance moved forward, negative values represent distance moved backwards. 
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What is the answer to this? −1.3≥2.9−0.6r
Karolina [17]

Answer:

Inequality Form:

r ≥ 7

Interval Notation:

[7, ∞)

Step-by-step explanation:

−1.3 ≥ 2.9 − 0.6r

Rewrite so r is on the left side of the inequality.

2.9 − 0.6r  ≤ −1.3

Move all terms not containing r to the right side of the inequality.  

Subtract 2.9 from both sides of the inequality.

−0.6r  ≤ −1.3 − 2.9

Subtract 2.9 from −1.3.

−0.6r  ≤ −4.2

Divide each term by −0.6 and simplify.

      Divide each  term in −0.6r  ≤ −4.2 by −0.6. When multiplying or dividing both sides of an

      inequality by a negative value, f lip the direction of the inequality sign.

       −0.6r /−0.6 ≥  −4.2 /−0.6

       Cancel the common factor of −0.6.

                  −4.2

          r ≥    ______

                  −0.6

 Divide −4.2 by −0.6.

r ≥ 7

The result can be shown in multiple forms.

Inequality Form:

r ≥ 7

Interval Notation:

[7, ∞)

6 0
3 years ago
Function: y=x2+5x−7<br><br><br>Vertex: ( , )<br><br><br>Solutions: ( , ) and ( , )
Dima020 [189]

Answer:

vertex : (-5/2, -53/4)

solutions: (-(5-sqrt53)/2, 0) (-(5+sqrt53)/2, 0)

Step-by-step explanation:

6 0
1 year ago
A class is selling magazines as a fundraiser. Of the 200 magazines sold, Ananda sold 1/8 of them. Gina sold 0.065 of the magazin
Zina [86]
To figure out which sold the most magazines, multiply each number by 200 to find the answer. Let's start with 1/8. 200 * 1/8 = 25. Then 0.065 * 200 = 13.

3/100 * 200 = 6

200 * 0.105 = 21.

Fatima sold the most magazines.
5 0
3 years ago
Write an Algebraic expression for the following phrases. K. The sum of a number m and 15 L. 6 more than a number x M. 8 less tha
dmitriy555 [2]

1:-

\\ \sf\longmapsto m+15

2:-

\\ \sf\longmapsto x+6

3:-

\\ \sf\longmapsto r-8

4:-

\\ \sf\longmapsto \dfrac{3}{4}x=\dfrac{3x}{4}

5:-

\\ \sf\longmapsto n(n-1)(n-2)=n!

6:-

\\ \sf\longmapsto n+(n+2)=2n+2

6 0
2 years ago
 
Misha Larkins [42]

Answer:

It's 130.66, D

Step-by-step explanation:

:)) yw

8 0
3 years ago
Read 2 more answers
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