Answer:
Step-by-step explanation:
0.025X+13= 15
80 minutes to reach 13 foot
Answer:
b hope this helps
Step-by-step explanation:
Answer:
-2 ≤ x < 12
Step-by-step explanation:
<u>-15x +4 ≤ 34</u>
Add 15x-34 to both sides
-30 ≤ 15x
Divide by 15
-2 ≤ x
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<u>-6x +70 > -2</u>
Add 6x +2 to both sides
72 > 6x
Divide by 6
12 > x
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The two solution spaces overlap. Since the AND of the two inequalities is involved, the solution of both is just that part of the number line where there is overlap.
The solution is ...
-2 ≤ x < 12
Answer:
(1/2, 9/2)
Step-by-step explanation:
Write the system as a column (not as a row of characters):
x − 3y = –13 and 5x + 7y = 34 =>
x − 3y = –13
5x + 7y = 34
Let's eliminate x using the method of addition and subtraction. Multiply all terms of the first row by -5:
-5x + 15y = 65
5x + 7y = 34
The sum of these two equations is
22y = 99, and so
y = 9/2
Substituting 9/2 or y in the first equation, we get:
x - 3(9/2) = -13, which simplifies to:
x = 27/2 - 13, or
x = 27/2 - 26/2, or x = 1/2
Then the solution is (1/2, 9/2)