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Anuta_ua [19.1K]
3 years ago
14

Paula runs with 2 of her friends. The table below shows their last 3 lap times.

Mathematics
1 answer:
patriot [66]3 years ago
3 0
The range is the difference of the greatest value of the data points and the least value. So, for Paula's data, the range is: 16 min*60s/min - 20 s = 940 s. For Kate, the range is: 16min*60s/min - 20s = 940 s. For Sam, the range is: 16min*60s/1min - 10 s = 950 s. If you want to find the overall range, find the greatest and least amount in all of the data given. The overall range is: 16min*60s/min - 10 s = 950 seconds.
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Can I get help with these too? Thank you!!!!!
Anastasy [175]
For ABC:

The interior angle of C is 180 - 142 = 38
The three interior angles add up to 180°
(2x - 15) + (x - 5) + 38 = 180
3x - 20 + 38 = 180
3x + 18 = 180
3x = 162
x = 54

The measure of angle ABC = x - 5 = 54 - 5 = 49

For JKL:
The interior angle of L is 180 - 100 = 80°
The 3 interior angles add up to 180°
(2x + 27) + (2x - 11) + 80 = 180
4x + 16 + 80 = 180
4x + 96 = 180
4x = 84
x = 21

The measure of angle JKL is 2x - 11 = 2(21) - 11 = 42 - 11 = 31°
7 0
3 years ago
Expression 1 is -12x + 3
musickatia [10]

Answer:

-12 + 3 - (10x - 15x + 96)

Step-by-step explanation:

6 0
3 years ago
What equation is equal to 11×-12
Nimfa-mama [501]
_______-12 x 11________
3 0
3 years ago
Read 2 more answers
What is the slope of (10,5) and (-2,-4)
postnew [5]
To find the slope, use the equation
m = (y2-y1)/(x2-x1)
Since we have 2 coordinates, we can use the formula.
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3 0
2 years ago
A store sells pool floats.
Andrei [34K]

Step-by-step explanation:

the original retail price was 120% of the manufacturer price (100% manufacturer price + 20% markup).

now, the whole retail price is reduced by 12%.

that means we have to subtract 12% from the 120%.

but careful, we cannot just do 120-12=108.

that is simply because these 120% are now for this calculation the new basic amount and therefore 100%.

we actually need to calculate and subtract 12% of 120 to get the new percentage over the manufacturer price.

we do this by multiplying 120 by (100-12)/100 = 88/100 = 0.88 :

120 × 0.88 = 105.6%

so, the new retail price is now only 5.6% over the manufacturer price.

6 0
2 years ago
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