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3 years ago

What is 15+12x-5x+4y-7 by combining like terms

Mathematics

2 answers:

SpyIntel [72]3 years ago

7 0

Answer:

Step-by-step explanation:

Your answer is 7x+4y+8

nevsk [136]3 years ago

4 0

Answer:

8+7x+4y

Step-by-step explanation:

15+12x-5x+4y-7

15, and -7 are like terms. 12x, and -5x are like terms. 4y does not have a like term.

So we substract 7 from 15 and that equals 8.

Then we substract 5x from 12x and that equals 7x.

And we leave the 4y alone.

Hope this help you.

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A total of 715 tickets were sold for the school play. They were either adult tickets or student tickets. There were 65 more stud

Sergeeva-Olga [200]

Answer:

There were 423 adult tickets sold.

Step-by-step explanation:

Let x = the number of adult tickets sold

Let x + 65 = the number of student tickets sold

x + x + 65 = 715

2x = 715

x = 357.5

x + 65 = 422.5 (round up)

6 0

3 years ago

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Write 2 decimals whose product is 0.16

Nitella [24]

0.4 and 0.4 or 0.8 and 0.2

Hope this helps :)

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3 years ago

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Mae has a number cube with 6 sides that are numbered 1 through 6. What is the probability that Mae will roll an odd number?

Stels [109]

Answer:

C) $P(E) = \frac{3}{6}$

The probability that Mae will roll an odd number

$P(E) = \frac{3}{6}$

Step-by-step explanation:

Step(i):-

Given that Mae has a number cube with 6 sides that are numbered 1 through 6.

n(S) = { 1,2,3,4,5,6,} = 6

Let 'E ' be the event of odd numbers

Mae will roll an odd number

n(E) = {1, 3, 5} = 3

Step(ii):-

The probability that Mae will roll an odd number

$P(E) = \frac{n(E)}{n(S)} = \frac{3}{6}$

$P(E) = \frac{3}{6}$

4 0

3 years ago

Solve the rational equation: x/x+1 = 2/x+1

Tju [1.3M]

Answer:

x = 2

Step-by-step explanation:

$\frac{x}{x+1} =\frac{2}{x+1}$

x ≠ 0

x ≠ - 2

x ≠ - 1

$\frac{x}{x+1}(x+1) =\frac{2}{x+1}(x+1)$

x = 2

6 0

3 years ago

1. A parachutist is 800 feet above the ground when she opens her parachute. She then falls at a constant rate of 5 feet per seco

Alexandra [31]

Answer:

h = -5*t +800

Step-by-step explanation:

The initial value is 800 ft

She is falling at a rate of 5 ft per second

That would be -5ft/s

We can write this in the form

y = mx+b

h = -5*t +800 where t is the number of seconds and h is the height above ground

6 0

3 years ago