Hello there!

Explanation:
↓↓↓↓↓↓↓↓↓↓↓↓
First you had to switch sides.

Then you divide by -4 from both sides of the equation.

Simplify

Next you had to add by 5 from both sides of the equation.

Simplify

You can also divide by 2 from both sides of the equation.

Simplify it should be the correct answer.

<u><em>Answer⇒⇒⇒⇒⇒r=-9</em></u>
Hope this helps!
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-Charlie
This is the answer for the calculation
Here is the answer. In order for us to know the weight of the mixture, we are going to solve for the weight of each first. Given that the weight of the chocolate chips is 2.5 and the ratio given is 7:2:5. First, let us solve for 2:5. So, ? : 2.5. The answer would be 1. So the weight of the peanuts is 1 pound. Now, we are going to solve for 7:2 given that the peanuts weigh 1 pound. 7:2 :: ? : 1 And the answer is 3.5. Therefore the weight of the walnuts is 3.5 pounds. So the weight of the mixture is 7 pounds. Hope this helps.
Answer:
A tourist receives 2376 ec currency in exchange for us 1200.
Step-by-step explanation:
This can be calculated as follows:
Tax rate = 1%
Amount of us currency = 1200
Total amount of ec currency = Amount of us currency * 2 = 1200 * 2 = 2400
Amount of tax = Total amount of ec currency * Tax rate = 2400 * 1% = 24
Net amount of ec currency = Total amount of ec currency - Amount of tax = 2400 - 24 = 2376
Net amount ec currency obtained above is the amount of ec currency which a tourist receives in exchange for us 1200.
Therefore, a tourist receives 2376 ec currency in exchange for us 1200.