Usually, you're asked to "simplify" an equation, meaning that you eliminate parentheses and combine like terms. Asking for "simplest form" suggests something different. The simplest form is the form that has the variable equal to a constant--the solution, in other words.

We suspect you want the <em>simplified form</em>, but since you asked for the <em>simplest form</em>, that is here, too.

1. 15=-3(c-1)+9

15 = -3c +3 +9

15 = -3c +12 . . . . . simplified form of the given equation

-1 = c . . . . . . . . . . "simplest" form

2. 2(1.5n+4)-6n=-7

3n +8 -6n = -7

-3n +8 = -7 . . . . . . simplified form of the given equation

n = 5 . . . . . . . . . . . "simplest" form

3. 2(z-20)+3z=10

2z -40 +3z = 10

5z -40 = 10 . . . . . . simplified form of the given equation

z = 10 . . . . . . . . . . "simplest" form

4. 2/5s -2+3(s-11)=50

0.4s -2 +3s -33 = 50

3.4s -35 = 50 . . . . simplified form of the given equation

s = 25 . . . . . . . . . . "simplest" form

4 0

3 years ago

Maggie stacked a box that was 83 centimeters (cm) tall on top of a box that was 128 centimeters. How tall was the stack of boxes

FromTheMoon [43]

The height of the stack is given by the sum of the heights of the boxes:

$83\text{ cm}+128\text{ cm} = 211\text{ cm}$

In order to convert this result in meter, remember that

$1 \text{ m} = 100\text{ cm} \implies 1 \text{ cm} = 0.01 \text{ m}$

So, to covert form centimeters to meters we have to multiply by 0.01 (or divide by 100).

Which means that

$211 \text{ cm} = 2.11 \text{ m}$

6 0

3 years ago

Plz help me i dont understand

wolverine [178]

your answer is 52. just subtract: 72-20=52

6 0

3 years ago

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