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anyanavicka [17]
3 years ago
13

3 + 4 = ? וא 2/3+2/4

Mathematics
1 answer:
Elina [12.6K]3 years ago
8 0

Answer:

1. 7

2. 17/12 can be a mixed number

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sara has two bags of nuts one with 60% peanuts and the other with 28% peanuts. to make a ten pound bag of 45% peanuts how much o
Drupady [299]

SOLUTION - GIVEN = Sara has two bag with 60% & 28% peanut.

                    prove = How much the peanut is used to make 10 pound of 45%

                                 peanut.

TO PROOF -  Assume that

                    let  x be the  value of the peanut  used by sara  from the bag

                  60% peanut bag.

                  let ( 10 - x)  be the value of peanut used by sara from 28% peanut

                  bag.

                as given the bag become  of  the 10 pound which contain

                 45% of peanunt.

                  thus we have

               0.60x + 0.28 ( 10 - x ) = 0.45 (10)        

                0.60x + 0.28 ( 10 -x ) =   4.5

               0.60x  +   2.8 -  0.28 x = 4.5

              0.60x - 0.28x = 4.5 - 2.8

            0.32x  = 1.7

             x =  5.3125   peanut is taken from the 60% bag.

            & 4.6875 peanut from the 28% bag.                                              

4 0
3 years ago
Find each sum or difference. Write in simplest fraction form. Pamela ran 7/10 mile on Tuesday and 3/8 mile on Thursday. How much
Jlenok [28]
She ran 13/40 of a mile more on Tuesday
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3 years ago
A blank is a number that cannot change its value
lesantik [10]

Answer:

constant

Step-by-step explanation:

5 0
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The space shuttle circled earth twenty times
AysviL [449]

Answer:

498020 miles al

Step-by-step explanation:

7 0
3 years ago
If a data value in a normal distribution has a negative z-score, which of the following must be true?
mel-nik [20]
Correct Answer:
The data value must be less than the mean.

The formula for the z value is:

z-value = (Data value - Mean) / Standard Deviation

The z-value will be negative when the Numerator of the above expression will be negative. The numerator will be negative only when the Data Value is less than the mean value. For example, for a data value of 5 and mean value 8, the numerator will be -3, and when it will be divided by standard deviation, the resulting z value will be negative.

So, Third option is the correct answer. 
4 0
3 years ago
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