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OLEGan [10]
3 years ago
8

If it takes 20 seconds to ring up a customer how many items are being purchased

Mathematics
1 answer:
valkas [14]3 years ago
5 0

Answer: proly like 2

Step-by-step explanation:

Because you have to pay and scan!

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Mathematics is not my subject lol :(
Airida [17]
Hey there! :D

Since Carol has 100 stamps, the percentages are like whole numbers. 

24%= 24 stamps

22%= 22 stamps

25%= 25 stamps

29%= 29 stamps

This is only because she has 100, and the percentages are from 100. If it was 50, it would be much different. You would multiply .25 by 50 for the number of stamps. It was nice that it was 100. 

So, now we just find Italy and England and subtract them. 

25-22= 3

3 stamps. <== the answer

I hope this helps!
~kaikers
5 0
3 years ago
What is the solution to this system?
BARSIC [14]

Answer:

The solution is (2,2)

3 0
2 years ago
Read 2 more answers
Anika buys a pair of shin guards for $8.58 and serveral pairs of soccer socks for $4.29 per pair. If she spends 25.74 before tax
Kryger [21]

Answer: 4 pairs of socks

Step-by-step explanation:

According to the described situation, Anika spends \$25.74 in 1 pair of shin guards for $8.58 and x pairs of socks for \$4.29 each pair.

So, we can express this in the following equation:

\$25.74=$8.58+\$4.29 x

Isolating x we will find the pairs of socks:

\$25.74-$8.58=\$4.29 x

x=\frac{\$17.16}{\$4.29}

x=4 Hence, Anika bought 4 pairs of socks.

3 0
3 years ago
Please someone help out quick!
Black_prince [1.1K]
Answer:
$42.50

Explanation:
If you divide 34 by 4 you get 8.5. Then you just add 8.5 to 34 to get 42.50.
6 0
2 years ago
How many ML of a 35% acid mixture and a 95% acid mixture should be mixed to get 120 ML of a 40% acid mixture?
Anon25 [30]

<u>ANSWER: </u>

110ML of 35% acid solution must be mixed with 10ML of 95% solution to obtain 120ML of 40% solution.

<u>SOLUTION:   </u>

First, set up table. fill in the unknowns with variables x and y.  The table is attached below.

From the table shown below, we can easily set up the two equations.  

Sum of values of two acids = Value of mixture  

0.35x + 0.95y = 48  

For convenience, we will multiply the entire equation by 100,

35 x + 95y = 4800     ------ (1)  

Now, Sum of amounts of each acid = Amount of mixture  

x + y = 120    --------- (2)

Multiply eqn 2  with 35 for easy calculation and derive the equation into one variable.

35 = 35x + 35y = 4200  

Subtracting equation (2) from (1),  we get

0 + 60y = 600  

Thus, 60y = 600  

y = \frac{600}{60} = 10

Substituting y = 10 in (2),

35x + 35(10) = 4200  

35x + 350 = 4200  

35x = 4200 - 350  

35x = 3850  

x = \frac{3850}{35} = 110

So, we have x = 110 and y = 10

We can conclude that 110ML of 35% acid solution must be mixed with 10ML of 95% solution to obtain 120 ML of 40% solution.

3 0
2 years ago
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