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stealth61 [152]
3 years ago
9

The perimeter of a rectangle is 42 cm and the area is 80 cm². Write an equation to model the situation and find the dimensions o

f the rectangle.
​
Mathematics
1 answer:
mafiozo [28]3 years ago
7 0

Answer:

16cm by 5cm

Step-by-step explanation:

P=2(l+w)  

A= wl

80 factorization: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80.

you then would have to find 2 numbers that would add up to make 42.

When you try 16*2+5*2= 32+10= 42 cm as your perimeter.

16*5= 80 cm^2 as your area.

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valentina_108 [34]
The answer is a
Explanation: I’m not too sure about it
3 0
3 years ago
An airline finds that if it prices a cross-country ticket at $300, it will sell 400 tickets per day. It estimates that each $10
lions [1.4K]

Answer:

price = $190

quantity =  950 tickets

Step-by-step explanation:

revenue = price * quantity

n = number of $10 price reductions

price = 300 - 10n

quantity =  400 + 50n

r = (300 - 10n)(400 + 50n)

recognize these as the factors of a quadratic that opens down

the vertex will therefor be the maximum revenue

the roots are:

300 - 10n = 0

300 = 10n

n = 30

400 + 50n = 0

50n = -400

n = -8

vertex is at mid point of the roots

n = (-8 + 30)/2

n = 11

price = 300 - 10n

price = 300 - 10(11)

price = 190

quantity =  400 + 50n

quantity =  400 + 50(11)

quantity =  950

3 0
3 years ago
-5 and 1 which is greater in value
mash [69]

Answer:

1 is greater than -5

Step-by-step explanation:

1 is greater than -5 because 1 is a whole number while -5 is a number that isn't positive causing it to automatically be lower then 1.

6 0
3 years ago
Which type of triangle has side measures of 6 cm, 7 cm, and 12 cm and one angle with a measure of 120°?
Igoryamba

Answer:

scalene and obtuse. All sides are different lengths and it has an angle exceeding 90 degrees

Step-by-step explanation:

3 0
3 years ago
determine the range of the function in the table below. x f(x) 0 -4 2 2 4 8 {0, 2, 4} {-4, 2, 8} {(0, -4), (2, 2), (4, 8)} {(-4,
miv72 [106K]
<span>the range of the function in the table is the values under f(x). i.e. </span><span>{-4, 2, 8}</span>
7 0
3 years ago
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