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wariber [46]
2 years ago
7

HELP ASAP!!! WILL BE FAN

Mathematics
2 answers:
makvit [3.9K]2 years ago
7 0
For the first one:

You take the number of plain chips and divide it by 3, then multiply by four. You do this because there is a 4 to 3 ratio of hot to plain chips.

42 / 3 = 14, 14 x 4 = 56.

Second one:

Birds (usually) have two wings for each beak. Why? I don't know, ask Darwin. There is a 2:1 (two to one) ratio of wings to beaks.

Third:

50 flaps per second, 60 seconds in a minute. 50 x 60 = 3000.

45,000 / 3000 = 15 minutes.

Fourth:

56 + 120 + 24 = 200

56 / 200 = 28% of the students ate pasta
Pavel [41]2 years ago
4 0
A)46. Take 42 and divide it by 3. Then multiply 14 by 4.
b)2:1. There are 2 wings for every 1 beak on a bird.
c)15 minutes. multiply 50 times 60 and that's how many times it beats per minute. Then divide 45000 by that number and that's how many minutes it should take.
d) 28%. You have to add all the students together, and you get 200. Then you divide 56 by 200.
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(4.7 x 10^5) + (2.8 x 10^3)
EleoNora [17]

Answer:

472800 or 4.728x10^5

Step-by-step explanation:

first you would slove (4.7x10^5) and (2.8x 10^3). Which would be 470000 and 2800. Then add the two together to get 472800. And if they want you to put it back into scientific notation then it would be 4.728x10^5

3 0
2 years ago
Read 2 more answers
A passenger train leaves the train depot 2 hours after a freight train left the same depot. The freight train is traveling 20mph
vagabundo [1.1K]

Answer:

50 (mph)    = rate of passenger train

Step-by-step explanation:

Let the rate of  the freight train  =   R

Let the rate of the  passenger train  be R +  30

The freight train  has  been  traveling for 2 + 3   =  5 hours

And the passenger train has  been traveling for  3 hours

And they  have traveled the same distance   when  the passenger  train  overtakes the freight train

So    using rate * time  = distance we have that

R(5)  = (R + 20) 3      simplify

5R  =  3R  +  60     subtract 3R from  both sides

2R  = 60           divide  both sides  by  2

R = 30   (mph)  = rate of freight train

R +  20  =  50 (mph)    = rate of passenger train

3 0
3 years ago
Hope you can read those plz help me
Annette [7]

the answer to the first question is B

the answer to the second question is also B i think


6 0
3 years ago
Which value, when placed in the box, would result in a system of equations with infinitely many solutions?
Whitepunk [10]
-10. One type of system of equations that results in infinite solutions is one where both sides of the equation are exactly equal. Here, setting the second equation equal to -10 becomes 2y - 4x = -10. This can be rearranged into 2y = 4x - 10. Dividing everything by 2 results in y = 2x - 5, which is exactly what the first equation is. Substituting one equation into another, we get 2x - 5 = 2x - 5, which is a true statement for all values of x.
8 0
3 years ago
Read 2 more answers
I don't know how to explain it but please help!
Wittaler [7]

Answer:

required answer. is 1/x³

7 0
2 years ago
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