Answer:
the value is
Step-by-step explanation:
<em>=</em><em>3</em><em>(</em><em>5</em><em>.</em><em>1</em><em>0</em><em>+</em><em>2</em><em>)</em>
<em>=</em><em>3</em><em>(</em><em>7</em><em>.</em><em>1</em><em>)</em>
<em>=</em><em>2</em><em>1</em><em>.</em><em>3</em>
Answer:
Step-by-step explanation:
How can expressions be written and evaluated to solve for unknowns in the real world?
Writing expressions requires figuring out which quantity in a situation is unknown, and define a variable to represent that quantitiy.
We look for words in the problem that will help us out what kind of operation to use in a given situation.
Example:
Donna bought 5 chocolate bars, and then ate some. Write an expression to represent how many chocolate bars Donna has left.
If we let the variable c represent the number of chocolates Donna has eaten, then we can write the expression on how many bars Donna has left as: 5 - c
Answer:
2
Step-by-step explanation:
The scale factor is 2 because every aspect of figure a doubled.
Answer:
The value if x is 0.9875.
Step-by-step explanation:
First, we have to get rid of brackets by expanding :
Next you have to collect like terms :
Lastly, you can solve x :
