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pentagon [3]
3 years ago
5

I need help with this

Mathematics
1 answer:
Sladkaya [172]3 years ago
6 0

Answer:

7

Step-by-step explanation:

More than 4, is 5. If you look at the 5 desks there are 7 books.

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2x + 5 /3x + 7 = 3/5 find X plz​
noname [10]

Answer:

x = -96/55

Step-by-step explanation:

Given that 2x + (5 /3)x + 7 = 3/5

Firstly, we have to multiply through out the expression by the common denominator. We can see that the denominators are 3 and 5, hence the common denominator is 15. Multiplying through by 15 gives:

2x * 15 + (5 /3)x * 15 + 7 * 15 = (3/5) * 15

30x + 25x + 105 = 9

Collect like terms:

30x + 25x = 9 - 105

55x = -96

Dividing through by 55:

x = -96/55

6 0
3 years ago
Which expressions are completely factored? Select each correct answer. 30a6−24a2=3a2(10a4−8) 16a5−20a3=4a3(4a2−5) 12a3+8a=4(3a3+
irinina [24]

When factoring an expression, we need to identify the Greatest Common Factor of the expression (GCF). By definition, GCF is the product of prime factors involved with its Lowest Exponent.

We need to divide each term by the GCF to get the expression inside the parenthesis.

30a^6-24a^2\\ GCF\; is \; 6a^2\\ \\ 30a^6-24a^2=6a^2(\frac{3a^6}{6a^2} -\frac{24a^2}{6a^2} )=6a^2(5a^4-4)\\ ---------------------\\ \\ 16a^5-20a^3\\ GCF \; is \; 4a^3\\ \\ 16a^5-20a^3=4a^3(\frac{16a^5}{4a^3} -\frac{20a^3}{4a^3})=4a^3(4a^2-5) \\ ---------------------\\ \\ 12a^3+8a\\ GCF \; is \; 4a\\ \\ 12a^3+8a=4a(\frac{12a^3}{4a}+\frac{8a}{4a})=4a(3a^2+2)\\   ---------------------\\ 24a^4+18\\GCF \; is \; 6\\\\24a^4+18=6(\frac{24a^4}{6} +\frac{18}{6})=6(4a^4+3) \\    ---------------------

Conclusion:

From above we can conclude that the below expressions are factored completely

16a^5-20a^3=4a^3(4a^2-5)\\ \\ 24a^4+18=6(4a^4+3)

6 0
3 years ago
Read 2 more answers
mr reyes bought a can of paint he used 3/8 of it to paint a book shelf he used 1/4 of it to paint a wagon he used some of it to
Gwar [14]
The solution comes in the form of a simple equation
3/8+1/4+x=7/8 because if you used 7/8ths you would only have 1/8th left
you need common denominators to solve so you find the closest one which is 8
you have to times 4 by 2 to get 8 and whatever you do to the 4 you have to do to the one above it so 1*2=2 and 4*2=8 so back to the equation 3/8+2/8+x=7/8
add them together and you have 5/8+x=7/8 so... 7/8-5/8=2/8ths
He used 2/8ths to paint the birdhouse
6 0
3 years ago
Is anyone good with triangle inequalities? I provided a picture for the problem.
alisha [4.7K]

Answer:

1 < x < 19

Step-by-step explanation:

Triangle Inequality Theorem

Let y and z be two of the side lengths of a triangle. The length of the third side x cannot be any number. It must satisfy all the following restrictions:

x + y > z

x + z > y

y + z > x

Combining the above inequalities, and provided y>z, the third size must satisfy:

y - z < x < y + z

We are given the measures y=10, z=9. The third side must satisfy:

10 - 9 < x < 10 + 9

1 < x < 19

3 0
3 years ago
Bob is paying for music lessons for the
s2008m [1.1K]
Find out the percent of 6 and 25 combined then adds 113 to it then u have ur answer
8 0
3 years ago
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