Answer:
The solution of the inequality required for the situation is d ≥ $13.46.
Step-by-step explanation:
i) the minimum deposit is $10.
ii) the balance before the statement is $-3.46
iii) a deposit d is made so that the fee did not have to be made
iv) therefore d + (-3.46) ≥ 10
d - 3.46 ≥ 10
therefore d ≥ 10 + 3.46
therefore d ≥ $13.46
20x+ 5y = 15
Move 20x to the other side. Sign changes from +20x to -20x
20x-20x+5y=-20x+15
5y=-20x+15
Divide both sides by 5
5y/5=y ( Cross out 5 and 5, divide by 5, 1*1*y=y)
-20/5=-4x
15/5=3
y=-4x+3 or y=3-4x
Answer: y=-4x+3 or y=3-4x
Kilogram is an SI unit for mass.
Ounce and pound refer to American system for measuring things, and decakilogram is not the "basic" unit, but kilogram is.
Answer:
Step-by-step explanation:
Answer:
x
=
π
3
,
2
π
3
,
4
π
3
,
5
π
3
Explanation:
(
sin
x
)
2
=
3
(
cos
x
)
2
(
sin
x
)
2
=
3
(
1
−
(
sin
x
)
2
)
(
sin
x
)
2
=
3
−
3
(
sin
x
)
2
4
(
sin
x
)
2
=
3
(
sin
x
)
2
=
3
4
sin
x
=
±
(
√
3
2
)
x
=
π
3
,
π
−
π
3
,
π
+
π
3
,
(
2
π
)
−
π
3
x
=
π
3
,
2
π
3
,
4
π
3
,
5
π
3
If this was in the region
0
≤
x
≤
2
π
I would say 80, because without an estimate it'd be 79 and 79x5=395. So 80x5=400, which is the estimate of 395. So 80 is the answer
