Answer:
Sometimes in math we describe an expression with a phrase. For example, the phrase
"222 more than 555"
can be written as the expression
2 + 52+52, plus, 5.
Similarly, when we describe an expression in words that includes a variable, we're describing an algebraic expression (an expression with a variable).
For example,
"333 more than xxx"
can be written as the algebraic expression
x+ 3x+3x, plus, 3.
But why? Why use math if we can describe things in words? One of the many reasons is that math is more precise and easier to work with than words are. This is a question you should keep thinking about as we dig deeper into algebra.
Step-by-step explanation:
1. (15+9)+12=36
2.(12+15)+9=36
The class spent $36
Roberto has twice the mass his sister Mary has but runs at the same velocity as Mary. Will his kinetic energy be twice as much?
(Mary has a mass of 40 kg and sprints at 1 m/s)
Can someone help me with this (sorry I don’t have enough point for a question and no one has answered this and I’m confused)
<em>Answer:</em>
<em>The</em><em> </em><em>answer</em><em> </em><em>for</em><em> </em><em>x</em><em> </em><em>is</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>5</em><em>.</em>
Let's write the equation of line in slope point form ~
Now, let's use this equation of line to plot two points ~
- when x = 0, y = (3 × 0) - 1 = - 1
- when x = -1, y = (3 × -1) -1 = -4
Now, plot these points on graph ~