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Salsk061 [2.6K]
2 years ago
12

Solve each system by substitution. 1. x = y + 2 2y + x = 17

Mathematics
1 answer:
Arada [10]2 years ago
7 0
The answer is 19/2 , 15/2
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An item costs 340 before tax, and the sales tax is 20.40.
Sonbull [250]

Answer:

Step-by-step explanation:

To find out the sales tax rate, we divide the sales tax by the cost of the item. This will give us what percent of the cost of the item the sales tax is equal to.

So, 20.4 divided by 340 = 0.06

To convert to percent, we multiply 0.06 by 100=6. Therefore, the sales tax rate is 6%.

Check:

340 times 0.06 (the sales tax rate) is 20.4 (the sales tax).

8 0
3 years ago
Round 835.411 to the nearest tenth.
kondor19780726 [428]

The tenth position is the one that goes after the decimal point.

To round a number, you have to take into account the following:

1. If the number that goes after the position we are going to round to is greater than 5, we round to the next number in that position.

2. If the number that goes after the position we are going to round to is less than 5, we round to the same number in that position.

In this case, the number that is on the tenth's position is 4. The number that is after this position is 1, which is less than 5, then we round the number in this positon to 4.

The rounded number would be:

835.4

4 0
1 year ago
12. The weight of 56<br>books is 8kg. What<br>is the weight of 154<br>such books?​
Korvikt [17]

Answer:

56+56=112 16kg

112+42=154 42 = 6kg

Step-by-step explanation:

5 0
3 years ago
What is 10.3÷200.3865
Charra [1.4K]
.0514006682 is the answer
8 0
3 years ago
Read 2 more answers
Help! Find the domain of the graph
charle [14.2K]

Answer:

[-8,4]

Step-by-step explanation:

you look at the x-axis. The end points of the graph are -8 and 4, thus the domain would be [-8,4] as it is always written in left to right or bottom to top value.

hope it helps.

8 0
2 years ago
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