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krok68 [10]
3 years ago
9

April has 5 milligrams of zinc and 0.25 milligrams of copper. How much more zinc does she have than copper?​

Mathematics
1 answer:
netineya [11]3 years ago
3 0

Answer:

the answer is 4.75

Step-by-step explanation:

5-0.25=4.75

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Two families went to the event. The first family bought two children's tickets and one adult ticket and paid a total of 8.2 euro
blagie [28]

Answer:

Step-by-step explanation:

step a system of two equations         c = child ticket     a = adult ticket

eq 1)  2c + 1a = 8.2            multiply by 2

eq 2) 3c + 2a = 14.1

I will multiply eq 1 times TWO and subtract eq 2 from eq 1a)

         eq 1a)  4c + 2a = 16.4

          eq 2)  3c + 2a = 14.1

subtract  (4c - 3c) + (2a -2a)  = 16.4 - 14.1  

                    c      +       0       =   2.3 euros     for one child ticket

Now find the adult ticket price,  plug 2.3 for c into eq 1)

     eq 1)  2c + 1a = 8.2

     eq 1)  2(2.3) + 1a = 8.2         solve for a

                 4.6  + a   =  8.2         substract 4.6 from both sides

                             a =  8.2 - 4.6

                               =   3.6 euros    for one adult ticket

double check using eq 2)    we know c and a values

    eq 2)  3c + 2a = 14.1

    eq 2)  3(2.3) + 2(3.6) = 14.1

                   6.9 + 7.2    =  14.1

                          14.1    =  14.1

5 0
3 years ago
Dont put the file stuff like stop! Help me
grandymaker [24]
5/12lb of dog food in each container.

This seems like a division problem so you would take (5/4) and divide it by 3 to make 3 equal groups meaning 5/12lb would be in each container.

I hope this helps, good luck!
6 0
3 years ago
The theoretical time for an apple to drop 2 meter is 0.64 second.sam did the experiment himself and measured that it took 0.62 s
nikitadnepr [17]
0.02/0.64*100=3.125℅
The formula is:(/error/divided by right answer) times 100. /means absolute value
4 0
3 years ago
Which expression is equivalent to -32 3/5
RSB [31]

Answer:

See below.

Step-by-step explanation:

-32 3/5

= [(-32* 5) + 3] / 5

= -163/5 is one expression.

Another is -32.6 ( because 3/5 = 0.6).

8 0
3 years ago
Read 2 more answers
Helpp fast please i will give brainliest thank you so much
enot [183]
B= 5,3
c=4,-1
a=2,1
this is the answer to part c
8 0
4 years ago
Read 2 more answers
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