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3 years ago

Solve for x. 5(x – 10) = 30 – 15x

Mathematics

1 answer:

Bad White [126]3 years ago

8 0

Answer:

x=4

Steps:

1. Distribute

2. Rearrange terms

3. Add 50 to both sides

4. Simplify

5. Add Add 15 to both sides of the equation

6. Simplify

7. Divide both sides of the equation by the same term

8. Simplify

5(x–10)=30–15x

5x-50=30-15x

5x-50=-15x+30

5x-50+50=-15x+30+50

5x=-15x+80

5x+15x=-15x+80+15x

20x=80

20x÷20=80÷20

x=4

I really hope this helps :)

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Tamiku [17]

Answer:

<u>Fourth choice: 15</u>

Explanation:

The question is: given that the first term is $t_1=5$ and the recursive definition is $t_{n+1}=3\cdot t_n$ , what would be the second term (i.e. $t_2$ )

A recursive defintion or recursive formula is an equation (a rule) that you apply over a term to find the next term, and so you can use it repeatedly to find the successive terms of a series.

In this case, your rule is that you multiply each term by 3, starting from 5.

Thus:

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3 years ago

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Step-by-step explanation:

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3 years ago

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3 years ago

Suppose you want to count the number of four-letter passwords that can be formed using the letters in the word NUMBER. The four

WITCHER [35]

Answer:

D.The password must not follow order matter

Step-by-step explanation:

We are given that suppose you want to count the number of four letters password that can be formed using the letters in the word NUMBER.

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We have to find the number of 4- letter password that can be formed using letters in the word NUMBER.

By using Permutation formula we find the number of 4- letters password that can be formed by using the letters N,M,B,U,E,R.

Permutation formula : The number of arrangements when taken r objects at a time out of n objects

= $\frac{n!}{(n-r)!}$

Total letters in word NUMBER=N,U,M,B,E,R=6

n=6,r=4

Therefore, the number of arrangements can be made from 6 letters when 4 letters taken at a time = $\frac{6!}{(6-4)!}$

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6 0

4 years ago

CAN SOMEONE HELP

rusak2 [61]

The two triangles are similar triangles.
The smaller triangle has hypotenuse 6 and a horizontal leg of 4
The large triangle has hypotenuse 6+12=18 and a horizontal leg of x, where x is some number larger than 4

Because the triangles are similar, we can form the proportion below and solve for x
x/4 = 18/6
6*x = 4*18
6*x = 72
6*x/6 = 72/6
x = 12

Final Answer: 12

6 0

4 years ago

Read 2 more answers