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Scrat [10]
3 years ago
8

An elevator is 180 feet above the first floor. Each second it descends

Mathematics
1 answer:
xenn [34]3 years ago
7 0

Answer:

9 sec

Step-by-step explanation:

because it decends 12 feet evry second so the answer is nine sec

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Use the number line below, where RS = 6y + 3, ST = 4y + 7, and RT = 60.​
Mama L [17]

Answer:

Step-by-step explanation:

RS + ST = RT

6y + 3 + 4y + 7 = 60

6y + 4y + 3 + 7 = 60

       10y + 10   = 60

                  10y = 60 - 10

                 10y = 50

                    y = 50/10

y = 5

RS = 6*5 + 3 = 30 +3 = 33

ST = 4*5 + 7 = 20 + 7 = 27

6 0
3 years ago
Read 2 more answers
Alex is saving money because she would like to purchase the new video gaming system that everyone has been talking about. After
ivanzaharov [21]


two weeks = 47     47/2 = 23.5 every week

24 weeks = 430    430/24= about 17.9 every week

She save from about $17.9 to $23.5

(not sure I did it right. Hope I helped :))


7 0
4 years ago
Read 2 more answers
What is the simplified form of x+8/4-x+5/4
kap26 [50]

Answer:

Step-by-step explanation:

x+ 8/4 -x+ 5/4

= x+2+-x +5/4

Combine Like Terms:

x+2+-x+ 5/4

(x+x)+ ( 2 +5/4)

= 13/4

5 0
3 years ago
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The principal of a middle school claims that test scores of the seventh-graders at his school vary less than the test scores of
AveGali [126]

Answer:

There is sufficient evidence to support the claim that the standard deviation is less than 14.7.

Step-by-step explanation:

From the question we are told that that the null hypothesis is

       H_o  :  \sigma < 14.7

Now given from the question that this null hypothesis was rejected, it mean, in non technical term that there is sufficient evidence to support the claim that the standard deviation is less than 14.7.

3 0
4 years ago
William had $500 in his bank account. He purchased textbooks for $285. He wants to spend the remaining amount of money on meals.
spin [16.1K]

Answer: 35 meals

Step-by-step explanation:

$500-$285=$215

$215/$6=35.8333333333

so, about 35 meals

6 0
3 years ago
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