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never [62]
3 years ago
8

Maria practised football for 1 2/5 hours on Friday and 2 2/3 hours on Saturday. How many hours of football did she practice alto

gether?
Mathematics
2 answers:
Nana76 [90]3 years ago
7 0

Answer:

4 hours and 4 minutes

Step-by-step explanation:

1 2/5 hours= 1 hour and 24 minutes

2 2/3 hours=2 hours and 40 minutes

add them together

makes 4 hours and 4 minutes

lutik1710 [3]3 years ago
5 0

Answer:

4 1/15

Step-by-step explanation

You do 1 2/5+2 2/3 make the bottom numbers the same. To do that you would times both the top and bottom by the lowest number you can to make them the same 2/5*3 and 2/3*5 which makes it 1 6/15 and 2 10/15 then just add them making it 3 16/15. Then you make the top number lower then the bottom so then you add one to the whole number making it 4 and making the fraction 4 1/15.

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April worked 1 1/2 times as long on her math project as did Carl. Debbie worked 1 1/4 times as long as Sonia. Richard worked 1 3
vlada-n [284]

Answer:

        Student                                                            Hours worked

             April.                                                                  7\frac{7}{8} \ hrs

        Debbie.                                                                   8\frac{1}{8}\ hrs

        Richard.                                                                   7\frac{19}{24}\ hrs

Step-by-step explanation:

Some data's were missing so we have attached the complete information in the attachment.

Given:

Number of Hours Carl worked on Math project = 5\frac{1}{4}\ hrs

5\frac{1}{4}\ hrs can be Rewritten as \frac{21}{4}\ hrs

Number of Hours Carl worked on Math project = \frac{21}{4}\ hrs

Number of Hours Sonia worked on Math project = 6\frac{1}{2}\ hrs

6\frac{1}{2}\ hrs can be rewritten as \frac{13}{2}\ hrs

Number of Hours Sonia worked on Math project = \frac{13}{2}\ hrs

Number of Hours Tony worked on Math project = 5\frac{2}{3}\ hrs

5\frac{2}{3}\ hrs can be rewritten as \frac{17}{3}\ hrs.

Number of Hours Tony worked on Math project = \frac{17}{3}\ hrs.

Now Given:

April worked 1\frac{1}{2} times as long on her math project as did Carl.

1\frac{1}{2}  can be Rewritten as \frac{3}{2}

Number of Hours April worked on math project = \frac{3}{2} \times Number of Hours Carl worked on Math project

Number of Hours April worked on math project = \frac{3}{2}\times \frac{21}{4} = \frac{63}{8}\ hrs \ \ Or \ \ 7\frac{7}{8} \ hrs

Also Given:

Debbie worked 1\frac{1}{4} times as long as Sonia.

1\frac{1}{4}  can be Rewritten as \frac{5}{4}.

Number of Hours Debbie worked on math project = \frac{5}{4} \times Number of Hours Sonia worked on Math project

Number of Hours Debbie worked on math project = \frac{5}{4}\times \frac{13}{2}= \frac{65}{8}\ hrs \ \ Or \ \ 8\frac{1}{8}\ hrs

Also Given:

Richard worked 1\frac{3}{8} times as long as tony.

1\frac{3}{8} can be Rewritten as \frac{11}{8}

Number of Hours Richard worked on math project = \frac{11}{8} \times Number of Hours Tony worked on Math project

Number of Hours Debbie worked on math project = \frac{11}{8}\times \frac{17}{3}= \frac{187}{24}\ hrs \ \ Or \ \ 7\frac{19}{24}\ hrs

Hence We will match each student with number of hours she worked.

        Student                                                            Hours worked

             April.                                                                  7\frac{7}{8} \ hrs

        Debbie.                                                                   8\frac{1}{8}\ hrs

        Richard.                                                                   7\frac{19}{24}\ hrs

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Substitution means making one formula equal to a variable in the second formula to plug it in, and elimination means the cancelling out of one variable in order to make it easy to solve.

1. x-4(-x+5)=10            

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  x=6, plug in 6 into original equation, y=-1

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    <u>2x</u>+3y=-2    underlined means cancelled, so you add the rest up on each side

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    y=-1, plug in this value to original equation, x=.5

3. 2(x+5)=2x+10

   2x+10=2x+10

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Please help me klkkfljfjfhcnfnf
mrs_skeptik [129]

Answer:

0.0017

Step-by-step explanation:

A percent is part of 100%. It converts to a decimal by moving the decimal point two place values to the left.

For example, 60%=0.60

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Please help!!<br><br>x^3+216
Evgen [1.6K]

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Whats the numerical number for 5
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Answer:

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