Start by defining your variables
let x be the mass of a single mango in gm
let y be the mass of a single orange in gm
now, write the question as a system of equations
3 mango and 2 orange have a mass of 200 gm
3x +2y = 200
4 mango and 4 orange have a mass of 300 gm
4x +4y = 300
now you have a system of equations
3x+2y =200
4x+4y =300
solve for x and y
Answer:
7.5 gallons
Step-by-step explanation:
3 x 250/100
= 7.5
Answer:
cuz they ask for an interest with the increase of time
Answer:
Step-by-step explanation:
The 90% confidence interval is given by mean - 1.645(s.d. / sqrt(n)) < μ < mean + 1.645(s.d. / sqrt(n))
mean - 1.645(s.d. / sqrt(n)) + mean + 1.645(s.d. / sqrt(n)) = 2<span>μ = 5.22 + 5.98 = 11.2
</span><span>μ = 11.2 / 2 = 5.6
Thus, </span><span>mean - 1.645(s.d. / sqrt(n)) = 5.6</span><span> - 1.645(s.d. / sqrt(n)) = 5.22
5.6 - 5.22 = </span><span>1.645(s.d. / sqrt(n)) = 0.38
</span><span><span>s.d. / sqrt(n) = 0.38 / 1.645 = 0.231
</span>The 95% confidence interval is given by </span>mean - 1.96(s.d. / sqrt(n)) < μ < mean + 1.96(s.d. / sqrt(n)) = 5.6 - 1.96(0.231) < <span>μ < 5.6 + 1.96(0.231) = 5.6 - 0.4528 < </span><span>μ < 5.6 + 0.4528 = 5.15 < </span><span>μ < 6.05
The 95% confidence interval provides more information because it has a larger interval.</span>