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Natali5045456 [20]
3 years ago
3

Lucia tried to solve the system below. Lucia’s Work. What error did Lucia make? When Lucia solved for the value of x, she subtra

cted 2y from both sides. When Lucia solved for the value of y, she treated –2y as 2y. When Lucia solved for the value of x, she added 18 to both sides. When Lucia solved for the value of x, she treated –2(–9) as 18 instead of –18.
Mathematics
2 answers:
mel-nik [20]3 years ago
5 0

Answer:

A

Step-by-step explanation:

got it right on edge

Aleks04 [339]3 years ago
3 0

Answer:

A

Step-by-step explanation:

edge 2020

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Rectangles JKLM and STUV are similar. The width of JKLM Is 30 feet and the perimeter is 140 feet. The length of STUV is 8 yards.
algol13
Rectangle JKLM:
p = 140 ft
w = 30ft
l = (140 - 2(30))/2 = 40ft
A = (30)(40) = 1200 ft²

Rectangle STUV:
l = 8yd = (8)(3) = 24 ft

24ft/40ft = 3/5

so . .

w = 3/5*30 = 18ft
A = 3/5*1200 = 720 ft²

Ratio of area JKLM:STUV = 1200/720 = 5/3
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3 years ago
Which one is bigger?
Alex777 [14]

Answer:

B

Step-by-step explanation:

\frac{4}{5} ^{2}= 0.64

\frac{3}{5} / \frac{4}{5}= 0.75

Therefore, the answer is B.

Hope this helps!

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2 years ago
What is the greatest common factor between 120 and 88?
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The gcf of 88 and 120 is 8.
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4 years ago
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Select all that are equivalent to a^2/a^9 <br> Assume a \= 0<br> 1<br> 1<br> DONE
Verdich [7]
0^2/0^9 = 0/0, therefore your answer is 1/1 considering that it is a fraction that is 100%, but if you divide 0 by 0, according to Keith’s theory you should have an endless number aka Infinity.
6 0
3 years ago
Here’s a graph of a linear function write the equation that describes that function
posledela

Answer:

The answer is y = 4x - 1

Step-by-step explanation:

First find two points on the line.

I will be using (-1, -5) & (1, 3).

Using the formula for slope, substitute in the values and solve:

y2-y1/x2-x1(This is the formula)

3--5/1--1(When using this formula, if y1 or x1 are negative, make them positive.)

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Now we use point-slope form:

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1. Substitute in the values.

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2. Simplify and distribute.

y + 5 = 4/1x + 4

3. Subtract 5 from both sides.

y = 4/1x - 1

4. Simplify.

y = 4x - 1

8 0
3 years ago
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