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3 years ago

2x + 8y = 28 2x + 8y = 29 e?

Mathematics

1 answer:

egoroff_w [7]3 years ago

6 0

Answer:

The question is unclear. what is e?

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Jessie bought a t-shirt for $6. It was originally $8.What percent discount did she receive?

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Jesse received a 25% discount.

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3 years ago

Security A rounds every 2 minutes and 20 seconds in the gate 1. Security B rounds every 1 minute and 40 seconds in the gate 2. I

Elden [556K]

Answer:

$Time = 11\frac{2}{3}\ min$

Step-by-step explanation:

Given

$Security\ A = 2\ mins, 20\ secs$

$Security\ B = 1\ mins, 40\ secs$

Required

After how many minutes, will they round together

First, convert the given time to minutes

$Security\ A = 2\ mins, 20\ secs$

$Security\ A = 2\ mins+ 20\ secs$

$Security\ A = 2\ mins+ \frac{20}{60}\ min$

$Security\ A = 2\ mins+ \frac{1}{3}\ min$

$Security\ A = 2\frac{1}{3}\ min$

$Security\ B = 1\ mins, 40\ secs$

$Security\ B = 1\ mins+ 40\ secs$

$Security\ B = 1\ mins+ \frac{40}{60}\ min$

$Security\ B = 1\frac{2}{3}\ min$

So, we have:

$Security\ A = 2\frac{1}{3}\ min$

$Security\ B = 1\frac{2}{3}\ min$

List out the multiples of the time of both security personnel take round.

$Security\ A = 2\frac{1}{3}min,\ 4\frac{2}{3}min,\ 7min,\ 9\frac{1}{3}min,\ 11\frac{2}{3}min...$

$Security\ B = 1\frac{2}{3}min,\ 3\frac{1}{3}min,\ 5min,\ 6\frac{2}{3}min,\ 8\frac{1}{3}min,\ 10min\ ,11\frac{2}{3}min,...$

In the above lists, the common time is:

$Time = 11\frac{2}{3}\ min$

This implies that they go on round after $11\frac{2}{3}\ min$

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3 years ago

If xy is rational, must either x or y be rational?

VashaNatasha [74]

B- No; because the product of two irrationals can also be rational

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3 years ago

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The bobcat bouncers jumping team can jump 18 times in 9 seconds. At this rate, how many jumps can they make in 45 seconds?

prisoha [69]

Answer:

The bobcat bouncers jumping team can jump 90 times in 45 seconds.

Step-by-step explanation:

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3 years ago

4(x + 2) = 2x + 10 explain each step plz

Ugo [173]

Answer:

$x=1$

Step-by-step explanation:

$4(x + 2) = 2x + 10$

Distribute 4(x+2).

$4x+8 = 2x + 10$

Subtract 2x and 8 from both sides.

$4x-2x=10-8$

$2x=2$

Divide both sides of the equation by 2.

$\frac{2x}{2} =\frac{2}{2}$

$x=1$

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4 years ago

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