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lora16 [44]
3 years ago
11

54 meters in 2.5 hours

Mathematics
1 answer:
Orlov [11]3 years ago
8 0
21.6 meters per hour
Solve by dividing 54 by 2.5
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Peter is writing a number in scientific notation.The number is grater that ten million and less that one hundred million.Which e
OLga [1]

Answer:

M  =  a \times 10^7  where 1 < a ≤ 9

The EXPONENT USED BY PETER is 7 in all the possible cases.

Step-by-step explanation:

Let us assume the needed number is M.

Also, given:

The needed number is GREATER than 10 Million.

⇒ M  > 10 Million

⇒ M > 10,000,000

⇒ M > 1 \times 10^7  ...... (1)

The needed number is SMALLER than 100 Million.

⇒ M  <  100 Million

⇒ M < 100,000,000

⇒ M  <  1 \times 10^8  ...... (2)

Comparing (1) and (2) we can see that M can have more than 7 zeroes after 1 but LESS than 8 zeroes after 1.

So, the possible values of M can be:

M  =  a \times 10^7  where 1 < a ≤ 9

So, the EXPONENT USED BY PETER is 7 in all the possible cases.

5 0
3 years ago
PLEASE HELP ME ASAP I WILL MARK YOU AS BRILLIANT<br>please help with these three
GalinKa [24]

Answer:

26:  x=34

28: x=17

30: m=30

Step-by-step explanation:

<u>26:</u> 2x+22=90

subtract 22

2x=68

divide by 2

x=34

<u>28:</u> 18+3x+21=90

add 18 and 21

3x+39=90

subtract 39

3x=51

divide by 3

x=17

<u>30:</u> 43+87+m+20=180

add 43 and 87 and 20

m+150=180

subtract 150

m=30

6 0
3 years ago
Trevor Sherr is paid $1.20 for each hand-painted
Margarita [4]

Answer:

$112.80

Step-by-step explanation:

First, add 56 and 44, which is 100. Then because 6 of the dishes contained errors, he didn't sell them, so subtract 6 from 100. You will get 94. Then you multiply 94 by 1.20 which would give you a result of $112.80.

8 0
3 years ago
What does x equal in 3.8x = -19
Sauron [17]

Answer: -5

Step-by-step explanation:

3 0
2 years ago
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Garica family bought 9 bags of cookies each bag had 15 cookies they have eaten 27 of the cookies how many cookies do they have l
vova2212 [387]
108 because 9 x 15 is 135 then 135- 27 is 108
3 0
3 years ago
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