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3 years ago

Three times the sum of a number and eight is four more than twice the sum of the number and six. Write and solve the equation.

Mathematics

2 answers:

Marina CMI [18]3 years ago

4 0

3(x+8)=4+2(x+6)

3x+24=4+2x+12 (distribute or get rid of the parenthesis by multiplying)

3x-2x=4=12-24 (subtract 2x from both sides, then subtract 24 from both sides)

x=-8 (simplify)

Scrat [10]3 years ago

4 0

There ya go! We went over this in Algebra a while back

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3 years ago

In math class the girl to boy ratio is 8 to 6 if there are 24 girls in the class , how many boys are there ?

Volgvan

Answer: The required number of boys in the class is 18.

Step-by-step explanation: Given that in math class, the girl to boy ratio is 8 to 6 and there are 24 girls in the class.

We are to find the number of boys in the class.

Let 8x and 6x represents the number of girls and boys in the class.

Then, according to the given information, we have

$8x=24\\\\\Rightarrow x=\dfrac{24}{8}\\\\\Rightarrow x=3.$

Therefore, the number of boys in the class is given by

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Thus, the required number of boys in the class is 18.

7 0

3 years ago

30 points.. Please Help! I don't understand what to do with this question...a bit confused.

Romashka-Z-Leto [24]

Eh, here's my best try for a table:

Like tv don't like tv total
Like reading: 70 10 80
Don't like read. 20 30 50 
total 90 40 130

The percentage of students that like tv as well as reading is- 70 divided by 130 which gives you .538 which in percentage is 53.8%.

The probability of a student that does not prefer to watch tv as also does not like to spend their time reading is 30 over 40 which can be simplified or reduced to 3 over 4. [30/40 reduced to 3/4]

Hope this somehow helped you :)

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3 years ago

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Alona [7]

18 and 3/7
Because i can write by phone. So just write 18 in the left side of 3/7

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