A variable is a quantity that may change within the context of a mathematical problem or experiment. Typically, we use a single letter to represent a variable. The letters x, y, and z are common generic symbols used for variables.

Step-by-step explanation:

in other words is like x,y,z or any other letters

4 0

2 years ago

Read 2 more answers

A family will travel 225 miles

Gennadij [26K]

Answer:

t ≤ 225r

Step-by-step explanation:

Distance = 225 miles

Time taken = t

Average speed = r miles per hour

Recall :

Speed = distance / time

Time, = distance / speed

t = 225 miles / r

All possible values of t :

t ≤ 225r

4 0

3 years ago

Simplify the expression x^5 • x^7

iragen [17]

Answer:

$\Huge\boxed{\mathsf{\Rightarrow X^1^2}}$

Step-by-step explanation:

<h3><u>TO SOLVE:</u></h3>

With exponent rule.

<h3><u>SOLUTIONS:</u></h3>

First, use exponent rule.

<u><em>EXPONENT RULE:</em></u>

$\displaystyle \mathsf{\Rightarrow A^B*A^C=A^B^+^C}}$

$\displaystyle \mathsf{X^5^+^7}}$

Solve.

Add the numbers from left to right.

$\displaystyle \mathsf{7+5=\boxed{\mathsf{\Rightarrow 12}}}}$

$\Rightarrow \Large \boxed{\mathsf{X^1^2}}}$

So, the final answer is x¹².

7 0

2 years ago

Read 2 more answers

Want Brainliest?

andrew11 [14]

Answer:

6 hours

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

767 runners entered a race. 305 more entered before the race started. How many runners are in the race? A 1072​

767 runners entered a race. 305 more entered before the race started. How many runners are in the race? A 1072