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Bogdan [553]
3 years ago
5

Please help me on this one.

Mathematics
2 answers:
EleoNora [17]3 years ago
7 0
3(j+4)-9=9
3j + 12 -9 =9
3j +3 =9
3j =6
j=2
gayaneshka [121]3 years ago
5 0
Ignore the top hope this helps

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**22 POINTS** Please solve this fraction as a difference
Ghella [55]

Answer:

\dfrac{x}{4}-\dfrac{7}{12}

Step-by-step explanation:

The fraction is the equivalent of ...

\dfrac{1}{12}{(3x-7)

and the distributive property applies.

=\dfrac{1}{12}(3x)-\dfrac{1}{12}(7)\\\\=\dfrac{3\cdot x}{3\cdot 4}-\dfrac{7}{12}\\\\=\dfrac{x}{4}-\dfrac{7}{12}

3 0
3 years ago
Find the surface area of a right cone with diameter 30 in. and slant height 8 in.Your answerEXTRA CREDIT: Find the surface area
Anon25 [30]

<u>Answer:</u>

Surface area = 1084 in²

<u>Step-by-step explanation:</u>

To find the surface area of a right cone, we can use the following formula:

\boxed{{Area = \pi r^2 + \pi rl}},

where:

• r = radius

• l = slant height.

In the question, we are told that the diameter of the cone is 30 in. Therefore its radius is (30 ÷ 2 = ) 15 in. We are also told that its height is 8 in.

Using this information and the formula above, we can calculate the surface area of the cone:

Surface area = \pi \times (15)^2 + \pi \times 15 \times 8

                     = 345 \pi

                     \approx 1084 in²

6 0
1 year ago
Suppose the cost of electricity is $0.03 for each kilowatt-hour. Carlos's house runs on 11.14 kilowatt-hours a day. Find the cos
irga5000 [103]
Answer: I think the answer is $33.42

Explanation: If it’s $0.03 for every hour and there is only 11.14 hours used a day just multiply 11.14 by .03 and you get .3342 then you move the decimal over 2 spaces to get 33.42
8 0
2 years ago
Using the drawing tool, graph the two inequalities on the number line. Take a screenshot of each number line and submit it in th
masya89 [10]

Zero on number lines is neither negative nor positive, it is used as a sort of divider number;)

Step-by-step explanation: this picture should help explain a little

4 0
3 years ago
Read 2 more answers
The following histogram shows the number of minutes that 29 students took to complete an exam.
jolli1 [7]

Answer:

What's the question?

Step-by-step explanation:

6 0
3 years ago
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