What is the value of a2 + 3b ÷ c - 2d when a = 3, b = 8, c = 2, and d = 5
2 answers:
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X - the number of sandwiches ordered
y - the number of soups ordered
There were 18 people, and each person ordered either one soup or one sandwich.
The sandwiches cost $7.75 each, the soups cost $4.50 each. The total cost was $113.50.
Set up a system of equations:
10 sandwiches were ordered.
The answer is D.
y - the number of soups ordered
There were 18 people, and each person ordered either one soup or one sandwich.
The sandwiches cost $7.75 each, the soups cost $4.50 each. The total cost was $113.50.
Set up a system of equations:
10 sandwiches were ordered.
The answer is D.
Answer:
The probability that a defective rod can be salvaged = 0.50
Step-by-step explanation:
Given that:
A machine shop produces heavy duty high endurance 20-inch rods
On occasion, the machine malfunctions and produces a groove or a chisel cut mark somewhere on the rod.
If such defective rods can be cut so that there is at least 15 consecutive inches without a groove.
Then; The defective rod can be salvaged if the groove lies on the rod between 0 and 5 inches i.e ( 20 - 15 )inches
Now:
P(X ≤ 5) =
= 0.25
P(X ≥ 15) =
= 0.25
The probability that a defective rod can be salvaged = P(X ≤ 5) + P(X ≥ 15)
= 0.25+0.25
= 0.50
∴ The probability that a defective rod can be salvaged = 0.50