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Luden [163]
3 years ago
9

Seraphina is driving two hours to visit her family For the first hour, she traveled at a speed of 64 mies per hour. Then, in the

second hour, she traveled at a speed of 66 miles per hour What is the percentage increase of Seraphina's speed? If necessary round to the nearest tenth of a percent A 3.1% B 96.9% C. 3% D 97%​
Mathematics
1 answer:
Lena [83]3 years ago
7 0

Answer:

A 3.1%

Step-by-step explanation:

x = percentage (Has to equal 2)

64x = 66

For 3.1%: CORRECT

64(3.1%) = 2

64 + 2 = 66

For 96.9%: NOPE

64(96.9%) = 62

For 3%:

64(3%) = 1.92

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If f(x) = 3x² tlo, what is f(-7)?
tia_tia [17]

Answer:

Step-by-step explanation:

Be careful how you handle this.

f(-7) = 3(-7)^2

f(-7) = 3* 49     Notice the minus sign disappears. That's because there are 2 of them.

f(-7) = 147

4 0
3 years ago
Sundas made 2 out of her 5 shots she attempted. Find the percent of the shots she attempted.​
Rudik [331]

Answer:

<u>i think</u> it is 40%

Step-by-step explanation:

she made 2/5 shots so

2/5*2=4/10

i times it by 2 because its out of 100

4/10*10=40/100

then i times it by 10 to get to 100

(2/5 is not 2 divided by five it is 2 over 5 just incase u didnt know what i was talking about)

8 0
2 years ago
Please help as soon as possible ​
Leokris [45]
Lamar used 80% of his data, so he used a greater percentage.
5 0
3 years ago
Read 2 more answers
Piscou possède 2021 pièces d'or. Il les répartit en piles contenant des nombres de pièces consécutifs.
anzhelika [568]

Question in English:

Tom has 2,021 gold coins. He divides them into piles containing consecutive numbers of pieces. if it has more than two piles, how much is in the highest pile?  

Plzzzzz give me Brainliest!!!!!  

7 0
3 years ago
Help please give answer please
Vsevolod [243]

The mean is 8 gerbils and the MAD is 4.29.

<h3>What is the mean?</h3>

Mean is the average of a set of numbers. It is determined by adding the numbers together and dividing it by the total number

Mean = sum of the numbers / total number

(0 + 3 + 6 + 9 + 11 + 13 + 14) / 7 = 8

What is the MAD?

MAD =  ∑ l x - m(x) l

| (0 - 8) + (3 - 8) + (6 - 8) + (9 - 8) + (11 - 8) + (13 - 8) + (14 - 8)| / 7 = 4.29

To learn more about mean, please check: brainly.com/question/25842202

#SPJ1

3 0
2 years ago
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