Answer:
3
Step-by-step explanation:
Get rid of fractions:
Multiply the whole equation, i.e. all terms both sides of the equals sign, by the denominator or the lowest common multiple of all denominators if there are multiple fractions in the equation;
In this case, only one term is a fraction and therefore has a denominator (i.e. 7), so it is this number we multiply the equation by to get:
7(y) = 7(-³/₇.x) + 7(3)
7y = -3x + 21
3x + 7y = 21
Answer: $48
Step-by-step explanation: The amount of money Joe made can be divided by 9. 54/9 = 6. Joe made 9 dollars six times so Leila made 8 dollars 6 times. 6 x 8 = 48.
Answer:
Margin of Error = 0.5
Step-by-step explanation:
Using this formula Z (s/√n)
Where
S = 1.8----------------------------- Standard Deviation
n = 36 ----------------------------------Number of observation
Z = 1.645 ------------------------------The chosen Z-value from the confidence table below
Confidence Interval || Z
80%. || 1.282
85% || 1.440
90%. || 1.645
95%. || 1.960
99%. || 2.576
99.5% || 2.807
99.9%. || 3.291
Substituting these values in the formula
Margin of Error = 1.645 * (1.8/√36)
Margin of Error = 1.645 * (1.8/6)
Margin of Error = 1.645 * 0.3
Margin of Error = 0.4935
Margin of Error = 0.5 (Approximated)
Answer:
Square, Cube, Square Root and Cubic Root for Numbers Ranging 0 - 100
Number x Square x2 Cube x3
2 4 8
3 9 27
4 16 64
5 25 125