You will need to follow order of operations, which states that operations must be completed in the following order: parentheses, exponents, multiplication and division, and then addition and subtraction.
In this case, there are no parentheses and no exponents, so we will start with the multiplication and division:
Now, we will finish by doing addition and subtraction:
Our answer is .
Answer:
294.1 pounds
Step-by-step explanation:
Step 1
We find the z score for 90th percentile
= 1.282
Step 2
We solve using z score formula
z = (x-μ)/σ, where
x is the raw score ??
μ is the population mean = 230 pounds
σ is the population standard deviation= 50 pounds
1.282 = x - 230/50
Cross Multiply
1.282 × 50 = x - 230
64.1 = x - 230
x = 230 + 64.1
x = 294.1 pounds
The birth weight of elephants at the 90th percentile is 294.1 pounds.
Answer:
by 3% percent
Step-by-step explanation:
i hope this helps ._.
For 3 minutes, 4.8 gallons
The amount per minute of gallons is 1.6 (0.8x2). So amount per minute times 3 is 1.6 times 3 = 4.8
Answer:
-485
Step-by-step explanation:
Formula
<em><u>Givens</u></em>
an = a28
n = 28
a1 = - 242
<em><u>Solution</u></em>
d = a3 - a2
d = -260 - - 251
d = -260 + 251
d = - 9
an = a1 + (n-1)d
an = -242 + (n - 1)(-9)
a28 = - 242 + 27*(-9)
a28 = - 242 - 243
a28 = - 485
