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Karolina [17]
2 years ago
13

A 5-kilogram bag of cat food costs $18.90. What is the unit price? $ per kilogram

Mathematics
2 answers:
Dmitriy789 [7]2 years ago
7 0

Answer:

3.78

Step-by-step explanation:

Rom4ik [11]2 years ago
7 0
Answer:
3.78
Explanation:
18.80 ÷5=3.78
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An equation that shows the relationship of 30% of x is 40
Tresset [83]
What do you mean? Try to explain
5 0
2 years ago
Read 2 more answers
Divid 15 into two parts such that the sum of their reciprocal is 3/10
Klio2033 [76]
From the information obtained from the question, two equations can be created:
 
Let x and z be the two numbers (parts)

\frac{1}{z}   +   \frac{1}{x}  =   \frac{3}{10} .  .  .  . (1)

z  +   x  =  15  .  .  .  . (2)

By transposing (2), make 'z' the subject of the equation
z = 15 - x  .  .  .  . (3)

By substituting (3) into equation (1) to find a value for x
\frac{1}{(15 - x)} + \frac{1}{x} = \frac{3}{10}

\frac{15}{( 15 - x ) ( x )}  =   \frac{3}{10}

3 ( - x^{2}  + 15 x )  =  150

3 x^{2}  - 45x + 150 = 0

⇒  ( x - 5 )  ( x - 10 )  = 0

∴ either ( x - 5) = 0        OR    ( x - 10 ) = 0

Thus x = 5 or x = 10

By substituting the values of x into (2) to find z

     z + (5) = 15       OR      z + (10) = 15

    ⇒      z = 10      OR                 z = 5

So, the two numbers or two parts into which fifteen is divided to yield the desired results are 5 and 10.





5 0
3 years ago
Simplify: 2log2(8x)
dem82 [27]
Answer is 0.124. I have to right more characters
3 0
3 years ago
Help me to simplify; <br> log_{5} 12.5+log_{5}10
liq [111]

Answer:

15.726

Step-by-step explanation:

log 5=0.698×12.5

=8.737

=0.698×10

=6.989

=8.737+6.989

=15.726

8 0
2 years ago
Find the probability of showing the product 6
Klio2033 [76]

Answer:

The probability is 1/6.

Step-by-step explanation:

7 0
3 years ago
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