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netineya [11]
3 years ago
10

ANYBODY KNO ?????????????????????????

Mathematics
1 answer:
ahrayia [7]3 years ago
8 0

Answer:

the second one

Step-by-step explanation:

(-2*12)+(-2*-3)

=-24+6

=-18

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Mrs. Adesso wants to take her class on a trip to either the science center or natural history museum. The science center charges
BartSMP [9]

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.

__

<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).

4 0
2 years ago
What is the slops that passes through (5,6) and (7,10)
Triss [41]
2 is the correct answer I believe
7 0
2 years ago
Read 2 more answers
3 increased by a number
zimovet [89]

Answer:

4 or5or6

Step-by-step explanation:

3+1=4

3+2=5

3+3=6

6 0
1 year ago
Read 2 more answers
Factor the expression using the GCF.<br> 100 – 80
DochEvi [55]

Answer:

The Greatest Common Factor (GCF) for 100 and 80, notation GCF (100,80), is 20.

Step-by-step explanation:

5 0
3 years ago
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Suppose two rectangles have the same area. Must they have the same length and width? Explain.​
Monica [59]

Answer:

no

Step-by-step explanation:

Two rectangles having the same area do not need to have the same length and width. The length and width of the rectangle are just factor pairs of the number that is the area. For example, if the area was 12, the side lengths would be 1 and 12, 2 and 6, or 3 and 4. As you can see, those aren't the same lengths and widths. A rectangle may be 1x12 and another may be 3x4, but they have the same area.

5 0
3 years ago
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