4 years ago

10. 4xy – 6xy + 5y - 9x

Mathematics

1 answer:

il63 [147K]4 years ago

3 0

Answer:

499

Step-by-step explanation:

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B. Subtract polynomials: (3x – 5 – 7x2) – (–2 + 6x2 – 5x)

Lapatulllka [165]

Answer:

$(3x-5-7x^{2} )-(-2+6x^{2} -5x)$

$step\:1: 3x-5-7x^{2} +2-6x^{2} +5x$

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$step\:3:-13x^{2} +8x-3$

<u>OAmalOHopeO</u>

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3 years ago

Delia has three pieces of ribbon. Her red ribbon is 2/4 foot long. Her green ribbon is 2/3 foot long. Her yellow ribbon is 2/6 f

Scorpion4ik [409]

The green ribbon is the correct ansser

7 0

3 years ago

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Three less than two times a number is 55. What is the number ?

Aloiza [94]

29
2x29=58-3 =55
3-2x (x=29) =55
29x2=58-3

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4 years ago

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Alonzo takes 12 minutes to run 6 times around a 400-meter track. Assuming he runs at a constant speed, how long does he take to

snow_lady [41]

Answer:

5 minutes to run 1 kilometer

Step-by-step explanation:

Alonzo takes 12 minutes to run 6 times around a 400-meter track.

6 times around a 400 m track

400 * 6 = 2400 meters

It take 12 minutes to run 2400 meters

2400 meters = 2400/1000 = 2.4km

distance = 2.4 km and time = 12 minutes

Now we find our constant speed

$Distance = speed * time$

2.4 = speed * 12

divide by 12 on both sides

speed = 0.2

so speed is 0.2 km per minute

Now we find out time when distance = 1km

Distance = speed * time

1 = 0.2 * t

divide by 0.2 on both sides

5 = t

So it take 5 minutes to run 1 kilometer

3 0

3 years ago

Find the 74th term of the following arithmetic sequence. 6,11,16,21

shepuryov [24]

First term = a = 6
common difference = d = 11 - 6 = 5
nth term = a + (n - 1) * d
n74 = 6 + (74 - 1) * 5
= 6 + 73*5
= 6 + 365
= 371

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3 years ago

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