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larisa [96]
3 years ago
15

Please help me with this problem!

Mathematics
1 answer:
Oksanka [162]3 years ago
7 0
(25-y) ^2-y^2=25
y=12
x=25-12
x=13

(13,12)
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You have returned from a trip to Europe and still have €200 euro. How much in U.S. dollars should you receive if the exchange ra
BARSIC [14]

Answer:

You should receive 286.0821056 US dollars

Step-by-step explanation:

* Lets explain how to solve the problem

- The exchange rate is USD/EURO 0.6991

- That means 1 USD = 0.6991 EURO

- You have 200 EURO

- You want to convert them to US dollars

∵ 1 dollars = 0.6991 euro

       USD  :  EURO

           1     :  0.6991

           x     :   200

∴ \frac{1}{0.6991}=\frac{x}{200}

- By using cross multiplication

∴ 0.6991 x = 200

- Divide both sides by 0.6991

∴ x = 286.0821056

∵ x represents the amount of US dollars

∴ <em>You should receive 286.0821056 US dollars</em>

8 0
2 years ago
Jillian bought a sweater for $ 8 less than half of its original price. She paid $ 18 for the sweater. How much is the original p
just olya [345]
Let's solve this problem step-by-step.

STEP-BY-STEP SOLUTION:

Let the original price = x

To begin with, we will convert the word problem into an equation as displayed below:

( x / 2 ) - 8 = 18

Now, to find the original price we will simply make ( x ) the subject and solve accordingly as displayed below:

( x / 2 ) - 8 = 18
( x / 2 ) = 18 + 8
( x / 2 ) = 24
x = 24 × 2
x = $48

CHECKING THE ANSWER:

In order to check if the answer is correct, simply substitute the value of x into the original equation and solve. If the left-hand and right-hand side are equivalent, then the answer is correct as displayed below:

( x / 2 ) - 8 = 18
( 48 / 2 ) - 8 = 18
24 - 8 = 18
18 = 18

Therefore, the answer is:

x = $48
4 0
2 years ago
Where is the removable discontinuity of f(x)=x+5/x^2+3x-10 located?
mario62 [17]
We are looking to find the point where the curve discontinued

Step 1: Factorise both numerator and denominator (if possible)
\frac{x+5}{ x^{2} +3x-10}= \frac{(x+5)}{(x+5)(x-2)}

Step 2: Recognise the common factor, which is (x+5)

Step 3: Equate the common factor to 0
x+5=0
x=-5

Answer: -5
3 0
3 years ago
Read 2 more answers
What are the solutions to the quadratic equation below?<br> 3x2 +16x + 21 = 0
tatyana61 [14]
X=-7/3,-3
Pls mark brainliest
6 0
3 years ago
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What is the area of this parallelogram??
Pachacha [2.7K]

Answer:

88 m^2

Step-by-step explanation:

They're simply trying to confuse you with the rest of the numbers.

7+4 = 11

^To get the base length.

8 is the height.

11*8=88.

8 0
2 years ago
Read 2 more answers
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