2 years ago

1. to replace a variable in a mathematical expression with an actual value

Mathematics

2 answers:

UNO [17]2 years ago

3 0

Answer:

1. its substitution

3. order of operations

4. variable

5. equation

Step-by-step explanation:

Svetllana [295]2 years ago

3 0

Exactly what he said

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44 × 20 × 10 = 440 × 2. but is it true or false ?

Vinil7 [7]

If you would like to know if 44 * 20 * 10 equals to 440 * 2, you can check it like this:

44 * 20 * 10 = 440 * 20 = 8800
and
440 * 2 = 880

So, the correct result is False, because 8800 is not equal to 880.

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2 years ago

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{2x + 3y = 5}{ y= 5 x -4}

Natasha_Volkova [10]

Solve the system using substitutions:

$\begin{gathered} 2x+3y=5 \\ 2x+3(5x-4)=5 \\ 2x+15x-12=5 \\ 17x=5+12 \\ 17x=17 \\ x=\frac{17}{17} \\ x=1 \end{gathered}$

x has a value of 1. Use this value to find the value of y.

$\begin{gathered} y=5x-4 \\ y=5\cdot1-4 \\ y=5-4 \\ y=1 \end{gathered}$

y has a value of 1.

x=1

y=1

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1 year ago

Find a number smaller than 19 that has more factors than the numbers 19 21 23 25

Pepsi [2]

18 has more factors than all of those numbers.

1, 2, 3, 6, 9, 18 are all the factors of 18.

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2 years ago

1. 2 4/5v-2/3(4v+1 1/6)

Lerok [7]

1. -48v-5/45 2.44-r/2 3. x=2

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2 years ago

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2a+b=15.7 what’s the possible values of b

Fiesta28 [93]

Answer:

b = 15.7 -2a

Step-by-step explanation:

You are asking us to solve for b

2a +b = 15.7

Subtract 2a from each side

2a-2a+b = 15.7 -2a

b = 15.7 -2a

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3 years ago