MATHEMATICS MIDDLE SCHOOL

Solve the equations in two different ways:6p=0.6(5p+15)

Answers

Answer 1
Answer:

Answer:

Step-by-step explanation:

1st way:

Solve directly

6p=0.6(5p+15)

Open bracket

6p = 3p + 9

Collecting like terms

6p - 3p = 9

3p = 9

Dividing by 3

p = 9/3

p = 3

2nd way:

6p=0.6(5p+15)

Convert the decimal to fraction

6p= 6/10(5p+15)

6p= 3/5(5p+15)

6p= 3/5(5p) +3/5(15)

6p = 3p + 9

Collecting like terms

6p - 3p = 9

3p = 9

Dividing by 3

p = 9/3

p = 3

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Solve for y.
50/90-y=5/18

Answers

Answer:

y = 5/18

Step-by-step explanation:

50/90-y=5/18

Lets simplify our fractions

50/90 = 5/9  (divide top and bottom by 10)

5/9 - y = 5/18

Subtract 5/9 from each side

5/9 -5/9 -y = 5/18 - 5/9

-y = 5/18 - 5/9

We need to get a common denominator of 18

-y = 5/18 - 5/9 *2/2

-y = 5/18 -10/18

-y = -5/18

Multiply each side by -1

-1*-y = -5/18 * -1

y = 5/18

Pat listed all the numbers that have 15 as a multiple write the numbers and pets list

Answers

3,5,15,1 i think thats is all i am not sure so sorry if i am wrong

The volume of a rectangular pyramid is 1.32 cubic inches. The height is 1.1 inches. The length of the base is 1.2 inches. What is the width of the base of the pyramid?

Answers

To find the volume of a prism, you must multiply the length, width and height. To work out the width, you must work backwards. 1.32 divided by 1.1= 1.2 (Volume divided by height). 1.2 divided by 1.2= 1 (Answer divided by 1.2= Width of the base) The answer is 1 cm.

Please help me with my hw

Answers

part 2 is 12.5 cm represents 5km
I worked this out by doing a ratio
5cm=2km
?cm=5km
you have to do 2 times 2.5 to get 5km so you do 5 times 2.5 to get 12.5cm
so the answer is that 12.5cm

This is the result of solving an equation to find a value(s) for the variable(s)which make the equation true.

Answers

How the equation becomes true is given below.

Step-by-step explanation:

In an equation with one variable, the variable has a solution, or value, that makes the equation true.

  • An equation is a mathematical statement that asserts the equivalence of two expressions.
  • When an equation contains a variable, such as  x, the variable is considered an unknown value.
  • The values of the variables that make the equation true are the solutions of the equation and can be found by solving the equation.
  • A solution of an equation can be verified, or checked, by substituting in its value for the variable in the equation.

For example, the assertion that “two plus five equals seven” is represented by the equation  2+5=7.

In many cases, an equation contains one or more variables. These are still written by placing each expression on either side of an equals sign (=). For example, the equation  x+3=5, read “x  plus three equals five”, asserts that the expression  x+3  is equal to the value 5.

When an equation contains a variable such as  x, this variable is considered an unknown value. In many cases, we can find the possible values for  x  that would make the equation true.  For example, consider the equation we were talking about above:  x+3=5. You have probably already guessed that the only possible value of  x  is 2, because you know that  2+3=5  is a true equation. We use an equals sign to show that we know the value of a given variable. In this case, we write  x=2  (read as “x  equals two”).

The values of the variables that make an equation true are called the solutions of the equation. In turn, solving an equation means determining what values for the variables make the equation a true statement.

The equation above was fairly straightforward; it was easy for us to identify the solution as  x=2

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What is 5.71 rounded to the nearest whole number

Answers

5.71 rounded to the nearest whole number is 6.
6 will be the answer because 71 is grater then 50
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