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3 years ago

1/5x+y=2/5 1/0x+1/3y=1/2

2 answers:

7 0

Best to enclose those fractions in parentheses:

(1/5)x + y = (2/5).

Otherwise, how would your reader know you didn't mean 1 / (5x) ?

Please note: Your 1/0x involves division by zero and thus is not defined. Make certain you've copied down the problem correctly.

If you present the following, instead, you can solve the system:

(1/5)x + y = (2/5).
x + (1/3)y = (1/2)

Hint: Determine what the LCD (lowest common denominator) is. Multiply both equations by this LCD, to remove all fractions from the problem.

kkurt [141]3 years ago

4 0

A)
|x + y = 5 
|2x - y = 7; 
b) 
|2x + y = 5 
|x - y = 2 
c) 
|3x + y = 6 
|4x - 3y = -5 
d) 
|1/(x - 1) = y - 3 
|x - y = -2 
e) 
|(9x + 4y)/3 - (5x - 11)/2 = 13 - y 
|13x - 7y = -8 
Answer: c and e has solution (1; 3)

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How many solutions does the following equation have?

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Answer:

choice a

Step-by-step explanation:

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3 years ago

A jacket at the store is being offered at a 30% discount. If the original price of the jacket is x, which answer choice shows an

kifflom [539]

Answer:

x-.30(x)

Step-by-step explanation:

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2 years ago

1 Which sequence of transformations takes AA to its image, AB ?

lianna [129]

A rigid transformation preserves the dimensions of the image

The option that gives the sequence of transformation that takes ΔB to ΔB is the option B.

(B) Reflection across y-axis and a translation 2 units down

Reason:

Question: The sequence of transformation that takes ΔA to image ΔB

From a similar question, we have, ;

The vertices of triangle ΔA are; (-8, 9), (-9, 4), (-3, 4)

The vertices of triangle ΔB are; (8, 7), (3, 2), (9, 2)

The options are;

(A) Reflection over the x-axis and 2 units translation down

(B) Reflection over the y-axis and 2 units translation down

(C) 90° rotation after a translation of 2 units down

(D) 90° rotation after a translation of 12units right

Solution;

The length of the base of ΔA = -3 - (-9) = 6

The length of the base of ΔB = 9 - 3 = 6

Therefore, the length s of triangle A and triangle B are equal

The orientation of the base of ΔA and ΔB are both horizontal

The location of the the side that traverses four cells are both furthest from the y-axis, or the vertical

Therefore, ΔB is a reflection of ΔA across the y-axis

We also have;

The base of ΔB is 2 units lower than the base ΔA

Therefore, the correct option is option B, reflection across y-axis and a translation 2 units down

Learn more here;

brainly.com/question/23461633

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3 years ago

Raul biked at a steady speed during his 8 mile ride. He finished the ride in 4/5. Which fraction represents rauls speed in miles

Sergio [31]

First Answer:

$\frac{8}{4/5}$

Second Answer:

(I did the quiz)

5 0

3 years ago

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Select TWO values of x that are roots

Sauron [17]

$x_1=\dfrac{-b-\sqrt{b^2-4ac}}{2a};\ x_2=\dfrac{-b+\sqrt{b^2-4ac}}{2a}\\\\y=x^2+3x+5\\\\a=1;\ b=3;\ c=5\\\\b^2-4ac=3^2-4(1)(5)=9-20=-11\\\\x_1=\dfrac{-3-\sqrt{-11}}{2\cdot1}=\dfrac{-3-\sqrt{-11}}{2}\\\\x_2=\dfrac{-3+\sqrt{-11}}{2}$

Answer: A and B.

3 0

3 years ago

Read 2 more answers