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Kazeer [188]
2 years ago
7

If (x^2 - y^2 = 10 and (x + y) =2 find x and y?

Mathematics
1 answer:
vampirchik [111]2 years ago
5 0

Answer:

x = 3.5 ; y = -1.5

Step-by-step explanation:

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Two trains start from Fort Worth traveling at the same speed. The trip for Train W takes 20 hours, while the trip for Train Z ta
MrMuchimi

Answer:

The equation that best models this situation is :

b. \frac{x}{20}=\frac{x+400}{25}

Distance traveled by Train W = 1600 miles

Distance traveled by Train Z = 2,000 miles

Step-by-step explanation:

Given:

Time taken for Train W to complete a trip = 20 hours

Time taken for Train Z to complete a trip = 25 hours

The city Train Z is traveling to is 400 miles farther away than the city Train W is traveling to.

both trains have same speeds and start from same location.

To find the distance in total each train travels.

Solution:

<em>Let length of the trip of Train W be </em>= x miles

Speed of Train W can be given as :

⇒ \frac{Distance}{Time}

⇒ \frac{x}{20}\ miles/h

<em>So, the length of the trip of Train Z will be</em> = (x+400) miles

Speed of Train Z can be given as :

⇒ \frac{Distance}{Time}

⇒ \frac{x+400}{25}\ miles/h

Since the speeds are same, so the equation to find x can be given as:

⇒ \frac{x}{20}=\frac{x+400}{25}

Solving for x

Multiplying both sides by 100 to remove fractions.

⇒ 100\times \frac{x}{20}=100\times \frac{x+400}{25}

⇒ 5x=4(x+400)

Using distribution.

⇒ 5x=4x+1600

Subtracting both sides by 4x

⇒ 5x-4x=4x-4x+1600

⇒ x=1600

Thus, Distance traveled by Train W = 1600 miles

Distance traveled by Train Z = 1600+400 = 2,000 miles

3 0
3 years ago
Could someone help me? ASAP!!
Wewaii [24]

Answer:

y=2x+3

Slope intercept form

8 0
3 years ago
∣x∣=−5<br> find an absoulute value
kati45 [8]

Answer:

5

Step-by-step explanatio

8 0
3 years ago
Read 2 more answers
In a population of 271 Dd parrots, predators kill 55. What is the approximate fitness of the genotype?
MissTica

Answer:

60%

Step-by-step explanation:

well i domt really know how to explain it ngl

7 0
4 years ago
How do you do a question like this? 80% as a fraction in simplest form.
Gemiola [76]
Take away 0.20 of the amount.
3 0
3 years ago
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