Answer:
-4
Step-by-step explanation:
PEMDAS
exponents -> 2^2 = 4
divide -> -36/4 = -9
add -> -9 + 5 = -4
we are ratio as
It will be equivalent to only those terms which would be multiple of this term
so, we will multiply top and bottom term by 5
and we get
so, it is very similar to 12/35
so, it will be equivalent to 12/35
so, option-C.......Answer
Answer:
x = 8
y = 11
Step-by-step explanation:
Total small box weight = 50x [x being the number of small boxes]
Total large box weight = 80y [y being the number of large boxes]
Total boxes = x+y = 19
Total weight = 1280
<em>Determine x and y.</em>
<u>You know 2 equations. One for weight and another for number of boxes each.</u>
<u>Rewrite second equation:</u>
x+y=19
y=19-x
<u>You have to plug in one into another.</u>
1280 = 50x + 80(19-x)
<u>Solve for x</u>
1280 = 50x + 1520 - 80x
-240 = -30x
x = 8
<u>Solve for y by plugging in x into one of the equations:</u>
8+y = 19
y = 11
Answer:5400
Step-by-step explanation:9•6= 54
Add both zeros from 900 at the end and it’s 5400
Answer:
The margin of error is 3.465
Step-by-step explanation:
Margin of error = t × sd/√n
n = 92, degree of freedom = n - 1 = 92 - 1 = 91, t-value corresponding to 91 degrees of freedom and 90% confidence level is 1.6618, sd = 20
Margin of error = 1.6618×20/√92 = 33.236/9.592 = 3.465
