Four times the sum of a number and 15 is at least 120
Let ‘x’ represent the number.
"The sum of a number and 15"
This can be written mathematically as x + 15
Given that 4 times this sum is at least 120,
This means that 4 times the sum is greater than or equal to 120
This can be written mathematically as 4(x + 15) >= 120
Solving for x
4(x + 15) >= 120
4x + 60 >= 120
4x >= 120 – 60
4x >= 60
x >= 60/4
x >= 15
x is greater than or equal to 15
<span>
</span>
Answer:
495-75=420 so
(−10,7)∪(7,11)(−1,2)∪(−4,0)[−1,9)∪(2,10]
Step-by-step explanation:
420 is that Marco still needs to save before he can buy the smartphone.
<span>f(x) = 9x-8
y = 9x-8
x = 9y-8
+8 +8
-----------
x+8 = 9y
----- ----
9 9
</span>x+8
----- <span> = y</span>
9
x+8
----- = f^-1 (x) ← Answer
9
Answer:
The asymptote of y = 2.5/x is 0.
Step-by-step explanation:
An asymptote is a line that infinitely extends toward a certain point but does not reach it finitely.
For an accurate graph, insert the equation y=2.5/x into a graphing calculator.
Answer:
c+r
therefore
its correct
Step-by-step explanation:
