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Komok [63]
3 years ago
5

Plz help me well mark brainliest if you are correct!

Mathematics
2 answers:
svp [43]3 years ago
7 0

Answer:

2/3

Step-by-step explanation:

aalyn [17]3 years ago
4 0

Answer:

-2/3

Step-by-step explanation:

Each mark on the number line is 1/3 unit.

Start at 1 2/3. That is the rightmost mark just before the right arrow.

You must subtract 2 1/3 units from it.

To subtract, you go left on the number line.

Every three marks you go left, you are subtracting 1 unit.

Go 3 marks to the left. That means subtracting 1 unit. Now you are at 2/3.

Now go another 3 marks to the left. You subtracted another unit. You are now at -1/3.

You still need to subtract 1/3, so go 1 more mark to the left. You arrive at -2/3. You have subtracted 2 1/3 from 1 2/3. The answer is -2/3.

Answer: -2/3

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Answer: The answers are given below.


Step-by-step explanation:  The calculations are as follows:

(19) Weight of the puppy last week is

W_\ell=2\dfrac{1}{2}~\textup{lb},

and weight of the puppy this week is

W_p=7\dfrac{1}{4}=\dfrac{29}{4}~\textup{lb}.

Therefore, the weight gained by the puppy is given by

W_g=W_p-W_\ell=\dfrac{29}{4}-\dfrac{5}{2}=\dfrac{29-10}{4}=\dfrac{19}{4}=4\dfrac{3}{4}~\textup{lb}.

(20) Time taken in Route 1 = 1 hour 30 minutes.

Time taken in Route 2 = 1 hour 45 minutes.

Time taken in Route 3 = 1 hour 35 minutes.

Time taken in Route 4 = 1 hour 25 minutes.

Since we want to spent the least amount of time on the bus, so we will be taking route 4.

(21) Time taken by Nazia to complete her language arts homework is

H_\ell=\dfrac{4}{9}~\textup{hr},

and the time taken by Nazia to complete her Mathematics homework is

H_m=\dfrac{2}{9}~\textup{hr}.

Therefore, Nazia takes more time to complete Language Arts homework, by

H=H_\ell-H_m=\dfrac{4}{9}-\dfrac{2}{9}=\dfrac{2}{9}~\textup{hr}.

(22) Quantity of Aluminium collected by Maya is

A_m=\dfrac{4}{20}=0.2~\textup{lb},

and the quantity of Aluminium collected by her friend Abigail is

A_a=\dfrac{7}{8}=0.87~\textup{lb}.

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(a) Abigail collected more aluminium

and

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T=A_m+A_a=\dfrac{4}{20}+\dfrac{7}{8}=\dfrac{8+35}{40}=\dfrac{43}{40}~\textup{lb}.

(23) Quantity of snow fall last Wednesday is

S_w=3\dfrac{1}{4}=3.25~\textup{in.},

and quantity of snowfall on sunday is

S_s=3\dfrac{4}{5}=3.8~\textup{in.}.

Therefore, quantity of snowfall was more on Sunday by

S=S_s-S_w=3\dfrac{4}{5}-3\dfrac{1}{4}=\dfrac{19}{5}-\dfrac{13}{4}=\dfrac{76-65}{20}=\dfrac{11}{20}~\textup{in.}.

Thus, all the questions are answered.

3 0
3 years ago
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