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Reptile [31]
3 years ago
8

-2/3 divided by (-1/2)

Mathematics
2 answers:
Alja [10]3 years ago
8 0

Answer: +4/3

Explanation: It's important to understand that dividing by a fraction

means the same thing as multiplying by the reciprocal of that fraction.

In other words, we can simply change the division symbol

to multiplication and flip the second fraction.

So we can rewrite this problem as -2/3 · -2/1.

We can't cross-cancel anything.

Before multiplying, take note of your signs.

A negative times a negative is a positive,

so we know that our answer will be positive.

Multiplying across the numerators and denominators, we have +4/3.

denis23 [38]3 years ago
7 0

Answer:

4/3

Step-by-step explanation:

multiply by the reciprocal

-\frac{2}{3} × -\frac{2}{1} = \frac{4}{3}

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Use graphing to find the solutions to the system of equations.
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So this will be a basic y = x^2 parabola where the center intercepts on the y axis at (0, 1)

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3 0
3 years ago
P(A)=.50 P(B)=.40, and P(A and B) = .15 what is P(a and B)
seropon [69]

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Step-by-step explanation:

3 0
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A grocery store manager notices that this month her store sold a total of 623 gallons of ice cream, which represents a decrease
kotykmax [81]

Answer:

- The store sold 733 gallons of ice cream last month.

- The store sold 748 pounds of broccoli last month.

Step-by-step explanation:

Given

Ice\ Cream = 623

\%\ Ice\ Cream = 15\%

Broccoli = 912

\%\ Broccoli = 22\%

Solving (a): Gallons of Ice Cream

<em>Let Gallons sold last month be G1; Gallons sold this month be G2;</em>

The relationship between both is:

G2 =G1 - 15\% * G1

Substitute 623 for G2

623 =G1 - 15\% * G1

623 =G1 - 0.15 * G1

623 =G1 - 0.15 G1

623 =0.85 G1

Divide through by 0.85

G1 = 623/0.85

G1 = 732.941176471

G1 = 733

Solving (b): Pounds of Broccoli

<em>Let Pounds sold last month be P1; Pounds sold this month be P2;</em>

The relationship between both is:

P2 =P1 + 22\% * P1

Substitute 912 for P2

912 =P1 + 22\% * P1

912 =P1 + 0.22 * P1

912 =P1 + 0.22 P1

912 =1.22 P1

Divide through by 1.22

P1 = 912/1.22

P1 = 747.540983607

P1 = 748

6 0
3 years ago
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