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Andre45 [30]
3 years ago
12

Agnes scored 87 on the first test 73 on the second test, 81 on the third test. supoise Agbes has one more test in the semester a

jd wants to finish with a mean of at least 80. what does she need to get on her last test?
Mathematics
1 answer:
castortr0y [4]3 years ago
6 0
87+73+81+x=4*80, find x
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PLEASE HELP
vovikov84 [41]

We can have two d = rt equations.

d = 40 t

d = 50 (9 - t)

We know the distance is the same, so we can just set the equations equal to each now.

40 t = 50 (9 - t)

40 t = 450 - 50 t

90 t = 450

t = 5

So, Terrell took 5 hours going 40 mph, and 4 hours going 50 mph. 5 * 40 gives us 200 miles one way.

7 0
3 years ago
What’s the mean,median,mode and range
Komok [63]

Answer:

Mean=2.1

Median=2

Mode=1,2, and 3

Range=5

Step-by-step explanation:

Mean is all the numbers added up and then divided by the amount of numbers there are, so 0+1+0+2+3+1+3+5+4+2=21, and then 21 divided by 10=2.1

Median is lining all the numbers up least to greatest and then finding the middle number, which is 2.

Mode is the number that appears the most, and since 1,2,3 all appeared twice in the data, they are the mode.

Range is the highest number in the data subtracted by the lowest number in the data, so 5-0=0

(hope this helps!)

4 0
3 years ago
sandra is playing a trivia game.on her first turn she lost 75 points. on her second turn,she lost 35 points. on her third turn,s
KiRa [710]

Answer: -10 points

Step-by-step explanation:

She lost 110,so that loss -the gain(100) is the total score at the end of three games

4 0
3 years ago
There are 68 apples in the school kitchen. The school needs 130 apples for all the students in grade 2. The school gets two boxe
WITCHER [35]

Answer:No they do not have enough they only have 82 apples

Step-by-step explanation:

7 0
3 years ago
The ratio of plates to cups is 10:14. If
drek231 [11]

x PLATES ... 10

7 CUPS ... 14

Cross multiply and et' violá:

14x=70\implies x=70/14=5

5 0
3 years ago
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