Answer:
25
Step-by-step explanation:
When we write expressions for the total cost of each field visit and set them equal, we find the solution to be the ratio of the difference in fixed cost to the difference in variable cost.
y = 75 +7x . . . . . cost for x students to visit the science center
y = 50 +8x . . . . cost for x students to visit the natural history museum
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Subtracting the first equation from the second, we get ...
0 = -25 +x
25 = x . . . . . add 25; the number of students such that costs are equal
The cost will be the same either place for 25 students.
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<em>Additional comment</em>
Here, the fixed cost difference is 75-50=25, and the variable cost difference is 8-7=1. The ratio of these costs is ...
$25/($1 /student) = 25 students.
This relationship only holds when the higher fixed cost is associated with the lower variable cost. Charges are such that one place caters to larger numbers of students (science center), and one prefers fewer students (natural history museum).
14. Trick question, ignore the side.
Call the angle b.
34 + b + b = 180
2b = 146
b = 73
choice b
15. That's intersecting chords so the product of the segment lengths are equal:
5(22)=10 x
x = 5(22)/10 = 11
choice a
16. Intersecting tangent and secant;
Choice a
Answer:19
Step-by-step explanation:
Divide 190 by 10
THe given statement is " the measures of an exterior angle and the adjacent interior angle add up to 360 because they form a linear pair " .
And in a linear pair, the sum of the measures of exterior angle and adjacent interior angle is 180.
But in the statement, it is given that the sum is 360 degree.
So the given statement is false .
Answer:
First, you’ll have to collect like terms
4x-x-3x=10+4+5
Next, step is to solve
3x-3x=14+5
0=19
Step-by-step explanation:
I hope the answer to your question is 19, please give me brainliest
