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inn [45]
3 years ago
13

Simplify each expression 7x +5(x +3) +4x -x -2

Mathematics
2 answers:
oee [108]3 years ago
5 0
7x+5x+15+4x+(-x)+(-2)
15x+13
Hope this helps and please give brainliest!
Vladimir [108]3 years ago
3 0
<span>we have 

7x +5(x +3) +4x -x -2

</span><span>(7x +5x +4x-x)+(15 -2)

15x+13-----------------15(x+13/15)</span>
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Help me pls thank you
cupoosta [38]

Answer:

216^3

Step-by-step explanation:

l*w*h

6*3*12=216^3

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2 years ago
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Find chase's mistake
alekssr [168]
This is no mistake he is the one
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A survey of students at a university shows that 4 out of 5 drink coffee. Of the students who drink​ coffee, 1 out of 6 adds crea
Andru [333]
The number who drink coffee is 3/4 of 8000, so ...
... (3/4)×8000 = 6000.
Of those, 1/5 add cream, so the number of coffee drinkers who add cream to their coffee is ...
... (1/5)×6000 = 1200.
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Alternate solutions
We have computed ...
... (1/5)×((3/4)×8000) = 1200
Since multiplication is associative, you can multiply the fractions first, if you wish:
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or
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6 0
3 years ago
A number of friends decided to go on a picnic and planned to spend rs. 96 on eatables. four of them, however, did not turn up. a
mr Goodwill [35]

The number of those who attended the picnic was 8.

Quadratic equations are the polynomial equations of degree 2 in one variable of type f(x) = ax^{2} + bx + c = 0 where a, b, c, ∈ R and a ≠ 0.

Such questions are best examples of quadratic equations where  the unknown is simply assumed to be a variable which when substituted according to the conditions yield a quadratic equation which can easily be solved.

Let x represent the whole population.

Total Spending = Rs. 96

Thus, each individual's contribution is equal to 96/x.

Four people did not show up causing

others to contribute Rs. 4 extra.

So the given condition can be written as

96/(x-4) – 96/x = 4

=>96x – 96(x-4) = 4x(x-4)

=> 96x -96x + 384 = 4x2 – 16x

=> 4x2 – 16x – 384 = 0

=> x2 – 4x – 96 = 0

=> (x – 12)(x + 8) = 0

=> x = 12 or x = -8 (neglect)

So x = 12

x-4 = 8  ( because  four of them did not turn up)

∴ The number of those who attended the picnic was 8.

Learn more about quadratic equations here :

brainly.com/question/15241362

#SPJ4

4 0
2 years ago
Can you please help me with number 21 please
yKpoI14uk [10]

Answer:

well it simply tells you if you think your right on all of them then press yes if not press no

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