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3 years ago

give two rational numbers whose sum is rational , difference is rational , product is rational , division is rational

Mathematics

1 answer:

Vaselesa [24]3 years ago

4 0

Answer:

That's the case for all pairs of rational numbers

One example:

2 and ½

Sum = 5/2

Difference = 3/2

Product = 1

Division/Quotient = 4

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A\b=c for bsolve for b and show your steps.show all steps.

Rufina [12.5K]

A/b=c
times both sides by b
A=bc
divide both sides by c
A/c=b
b=A/c

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3 years ago

Which one is equivalent

Elza [17]

The answer would be C) 2x + 10.

Expand ( -3x + 5x + 10 )

Simplify ( 2x + 10 ).

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3 years ago

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Larry has a gift card worth 400 for a local entertainment store Movies cost $20 each and newly released video games cost $50 eac

Vikki [24]

Answer:

All are correct.

Step-by-step explanation:

Let x be the number of movies and y be the number of newly released video games.

Larry has a gift card worth 400 for a local entertainment store Movies cost $20 each and newly released video games cost $50 each.

$20x+50y\leq 400$

Larry must purchase at least nine items.

$x+y\geq 9$

Check both inequalities of all given ordered pairs.

For (5,6),

$20(5)+50(6)\leq 400\Rightarrow 400\leq 400$

$5+6\geq 9\Rightarrow 16\geq 9$

Point (5,6) satisfy both inequalities.

For (10,4),

$20(10)+50(4)\leq 400\Rightarrow 400\leq 400$

$10+4\geq 9\Rightarrow 14\geq 9$

Point (10,4) satisfy both inequalities.

For (20,0),

$20(20)+50(0)\leq 400\Rightarrow 400\leq 400$

$20+0\geq 9\Rightarrow 20\geq 9$

Point (20,0) satisfy both inequalities.

For (15,2),

$20(15)+50(2)\leq 400\Rightarrow 400\leq 400$

$15+2\geq 9\Rightarrow 17\geq 9$

Point (15,2) satisfy both inequalities.

Therefore, all combination of movies and newly released video games Larry could purchase using his gift card.

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3 years ago

Solve for x. 3.3x = 29.04

Ilya [14]

3.3x =29.04

to find x divide both sides by 3.3

x = 29.04 / 3.3

x = 8.8

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3 years ago

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Solve the equation below for a<br><br> vf=vi+at

ipn [44]

Answer:

a= $\frac{vf - vi }{t}$

Step-by-step explanation:

vf=vi + at

vf-vi= at

divide both sides by t

$\frac{vf - vi }{t}$ = $\frac{at}{t}$

a= $\frac{vf - vi }{t}$

6 0

3 years ago