2/3 x 12 is 8 hope this helped :)
Answer:
1.75p + 1.50(p + 6) = 22
Step-by-Step:
p = peaches, m = mangos
1.75p + 1.50m = 22
m = p + 6
1.75p + 1.50(p + 6) = 22
1.75p + 1.50p + 9 = 22
1.75p + 1.50p = 22 - 9
3.25p = 13
p = 13 / 3.25
p = 4 <====== she bought 4 peaches
m = p + 6
m = 4 + 6
m = 10 <===== she bought 10 mangos
check...
1.75p + 1.50m = 22
1.75(4) + 1.50(10) = 22
7 + 15 = 22
22 = 22 (correct)
Answer:
The 90% confidence interval is 
Step-by-step explanation:
From the question we are told that
The sample size is n = 64
The sample mean is 
The standard deviation is 
Given that the confidence interval is 90% then the level of significance is mathematically evaluated as


Next we obtain the critical value of
from the normal distribution table , the value is

Generally the margin of error is mathematically represented as

=> 
=> 
The 90% confidence interval is mathematically represented as

=> 
=> 
1) the answer is 5x and -2x
2) -3a and a
3)4x and 5x
4)7x
30 minutes. the easiest way is to use the opposite of the fraction. divide 25 / 5= 5. now multiply by 6. 5*6= 30.