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blsea [12.9K]
3 years ago
15

Y2 + x2 = 53 y − x = 5

Mathematics
1 answer:
kykrilka [37]3 years ago
4 0
Here is a great website that is safe and free to help with your math problems. I wouldn't have gotten through 10th grade with out it! It's called mathway. com 
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Salsk061 [2.6K]
It’s B
23x+23
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3 0
3 years ago
Solve for the unknown variable 2/5(3x-4)=-4
Elanso [62]

Answer:

x = -2

Step-by-step explanation:

Solve for x:

(2 (3 x - 4))/5 = -4

Multiply both sides of (2 (3 x - 4))/5 = -4 by 5/2:

(5×2 (3 x - 4))/(2×5) = -4×5/2

5/2×2/5 = (5×2)/(2×5):

(5×2)/(2×5) (3 x - 4) = -4×5/2

5/2 (-4) = (5 (-4))/2:

(5×2 (3 x - 4))/(2×5) = (-4×5)/2

(5×2 (3 x - 4))/(2×5) = (2×5)/(2×5)×(3 x - 4) = 3 x - 4:

3 x - 4 = (-4×5)/2

(-4)/2 = (2 (-2))/2 = -2:

3 x - 4 = 5×-2

5 (-2) = -10:

3 x - 4 = -10

Add 4 to both sides:

3 x + (4 - 4) = 4 - 10

4 - 4 = 0:

3 x = 4 - 10

4 - 10 = -6:

3 x = -6

Divide both sides of 3 x = -6 by 3:

(3 x)/3 = (-6)/3

3/3 = 1:

x = (-6)/3

The gcd of -6 and 3 is 3, so (-6)/3 = (3 (-2))/(3×1) = 3/3×-2 = -2:

Answer:  x = -2

6 0
3 years ago
Read 2 more answers
Evaluate |2y-2| when y=-2
grandymaker [24]

Answer:

6.

Step-by-step explanation:

|2y-2| when y = 2

=  |2(-2)-2|

= |-4 - 2|

= |-6|

= 6.

3 0
3 years ago
Question 10
Anna [14]

Answer:

Step-by-step explanation:

5 0
3 years ago
A $128.00 item is marked down by 25%. What is the new cost of the item?
Rzqust [24]

Answer:

$128. Correct answer: $208. Explanation: (320) / (0.8) = 400. The couch has been marked down an additional 40% from the sale price of $320. $320 * 0.6 ... The next day, the store ran a sale of 20% off all items. What is the ... Explanation: 25% off means that the new price of the television will be 75% of the original price:.

Step-by-step explanation:

5 0
3 years ago
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