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4 years ago

Triple a number, decreased by 12

Mathematics

2 answers:

STALIN [3.7K]4 years ago

8 0

3x-12. X represents "a number"

Mariana [72]4 years ago

4 0

3x-12 No equal sign because it is an algebraic expression.

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Which expressions are equivalent to 5p+3p+(-9)

Fynjy0 [20]

Answer:

8p -9

Step-by-step explanation:

5p+3p+(-9)

Combine like terms

8p -9

3 0

4 years ago

Read 2 more answers

Let A = {June, Janet, Jill, Justin, Jeffrey, Jelly}, B = {Janet, Jelly, Justin}, and C = {Irina, Irena, Arena, Arina, Jelly}. Fi

Hoochie [10]

Answer:

{June, Janet, Jill, Justin, Jeffrey, Jelly,Irina, Irena, Arena, Arina, }

Step-by-step explanation:

A ∪ C

This means union so we join the sets together

A = {June, Janet, Jill, Justin, Jeffrey, Jelly} + C = {Irina, Irena, Arena, Arina, Jelly}

A U C = {June, Janet, Jill, Justin, Jeffrey, Jelly,Irina, Irena, Arena, Arina, Jelly}

We get rid of repeats

A U C = {June, Janet, Jill, Justin, Jeffrey, Jelly,Irina, Irena, Arena, Arina, }

5 0

4 years ago

A student measured the dimensions of a table and recorded the length as 103.50cm and the width as 73.75cm. according to the stud

PolarNik [594]

The table is usually the shape of a rectangle. The area is equal to the length times the width. To make sure, let's recalculate the solution.

Area = length × width
Area = 103.50 cm × 73.75 cm
Area = <span>7,633.125 cm</span>²

So, we established that the answer is correct. Now, I'll introduce the concept of significant figures. There are rules regarding significant figures to be applied conventionally in measurements and calculations. This is to increase precision of the data. Significant figures are digits that carry meaning. When you are given data with a specific number of significant figures, the final answer should also contain the same number of significant figures. In convention, the rule says that the zero's after non-zero digits after the decimal point are significant. Also, all non-zero digits are significant. The value 103.50 has 5 significant figures, and 73.75 has 4. When it comes to multiplication, the answer should contain the least significant figures. So, we should have 4 significant figures. Therefore, the final answer to be reported should be 7,633 cm².

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3 years ago

How far will fiona jog (in feet)

Aleksandr-060686 [28]

Answer:

1780 ft

Step-by-step explanation:

We need to find the perimeter of the rectangle, given by

P= 2(l+w) where l is the length and w is the width

The units need to be the same

Change 230 yds to ft

230 yd * 3 ft/ y = 690 ft

P = 2(690+200)

P = 2(890)

P =1780

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3 years ago

What is 258,177 to the nearest hundred thousand

Ostrovityanka [42]

Answer: 300,000

Step-by-step explanation:

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3 years ago