Answer:
h = 5
Step-by-step explanation:
h/2+1/2=3
Multiply each side by 2 to get rid of the fractions
2(h/2+1/2)=3*2
h+1 = 6
Subtract 1 from each side
h+1-1 = 6-1
h = 5
<h3>
Answer: all real numbers greater than or equal to -3</h3>
Explanation:
The left-most point is at (-3,-2). The x coordinate is all we're concerned with here. The x coordinate for this point is x = -3. This is the smallest x value possible as an input. We cannot have x = -4 as that is nowhere on the blue curve.
So the domain is the set of real numbers x such that x is -4 or larger
In set builder notation, that would look like
In interval notation, we would say to indicate to the reader "have an interval from -3 to positive infinity; include the endpoint -3"
80% means 0.80 .
"of" in math almost always means "times".
"80% of 400" means (0.80 x 400). That's 320 .
Answer:
The equation that models this situation is:
x = 15 × 8 or x ÷ 8 = 15
Step-by-step explanation:
- Total number of available tables = 15
- The number of guests who are seated at each of the 15 available tables = 8
Let 'x' be the total number of guests who are seated at the tables.
If have to determine how many guests (x) are seated at the tables, all we need is to multiply the 15 with 8.
so the equation becomes
x = 15 × 8 or x ÷ 8 = 15
Therefore, the equation that models this situation is:
x = 15 × 8 or x ÷ 8 = 15
Sodas+hot dogs = 231
hotdogs* 2 = sodas
substitute,
hotdogs*2 +hotdogs= 231
3*hotdogs = 231
hotdogs = 77
sodas = 154