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sleet_krkn [62]
3 years ago
11

Christine bought lunch 15 times at school this month and spent a total of $49.50. Each of her lunches cost an equal amount

Mathematics
2 answers:
bagirrra123 [75]3 years ago
8 0

Answer:

The answer is $3.3

Step-by-step explanation: Because 49.50 divided by 15 is 3.3

Darya [45]3 years ago
4 0

Answer:

The answer is 15p = 49.50

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Rasek [7]

Answer:

Tim gets 8 pounds and Sam gets 32 pounds

Step-by-step explanation:

Divide 40 by 5

40/5=8

Now 8 is 1 part of the ratio. Just put it in the ratio now and you get:

Tim gets 8 pounds and Sam gets 32 pounds

3 0
3 years ago
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Naddik [55]

Answer:

21a^4+4a^2+2a

Step-by-step explanation:

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7 0
3 years ago
Cl2 + 2KBr -> Br2 + 2KCl what is the reaction?
Serjik [45]

Answer:

Step-by-step explanation:

C

l

2

+

2

K

B

r

→

2

K

C

l

+

B

r

2

Given:

300

g

of

C

l

2

300

g

of

K

B

r

(a) Mass of

C

l

2

= 300g

Molecular mass of

C

l

2

= 2(35.45) = 70.906 g

/

m

o

l

No.of moles of

C

l

2

=

m

a

s

s

/

m

o

l

a

r

m

a

s

s

=

300

/

70.906

=

4.23

moles

Mass of

K

B

r

=

300

g

Molar mass of

K

B

r

=

39

+

79.9

=

118.9

g

/

m

o

l

No.of moles of

K

B

r

=

300

/

118.9

=

2.52

moles

Now,

Consider the equation:

C

l

2

+

2

K

B

r

→

2

K

C

l

+

B

r

2

1

mole of

C

l

2

= 2 moles of

K

C

l

4.23

moles of

C

l

2

= 2x4.23=

8.46

moles

2

moles of

K

B

r

= 2 moles of

K

C

l

2.52

moles of

K

B

r

=

2.52

moles

Now convert moles to mass,

Mass of

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C

l

produced by

C

l

2

=

8.46

×

70.906

=

599.8

g

Mass of

K

C

l

produced by potassium bromide =

2.52

×

74.5

=

187.74

g

3 0
3 years ago
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Pani-rosa [81]

Answer:

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4 0
3 years ago
Read 2 more answers
4d^-3 multiplyed by d^18
Verdich [7]
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Another way to write this problem would be:

4*d^18
---------- .  Here d^18 divided by d^3 results in d^15, so again the final 
  d^3         answer is 4*d^15.
6 0
3 years ago
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