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AleksAgata [21]
3 years ago
14

Using substitution for systems of equations, solve, please show work. thank you!!

Mathematics
2 answers:
Rasek [7]3 years ago
5 0
That's your final answer. X=7 and Y=2

ratelena [41]3 years ago
4 0
X is equal to 7 and Y is equal to 2
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How do the lengths of line segments define the golden ratio?
NISA [10]

Answer:

\frac{a+b}{a}=\frac{a}{b}

Step-by-step explanation:

The golden ratio is a special number favored by the Greeks. Its ratio roughly equals 1.618. The ratio is formed by taking a line segment and dividing it into two parts labeled a and b. The golden ratio is formed when this proportion is true \frac{a+b}{a}=\frac{a}{b}.

When you add a and b then divide by a, it will be the same as a divided by b. This will hold true only for specific lengths of a and b. This means you must divide the line segment in such a way that a and b meet this requirement.

Example:

If the line segment is 50 cm long. Split the segment into parts a and b where a = 30.9 and b = 19.1. Substitute the values into the proportion \frac{a+b}{a}=\frac{a}{b}.

\frac{30.9+19.1}{30.9}=\frac{30.9}{19.1}

\frac{50}{30.9}=\frac{30.9}{19.1}

1.618 = 1.618

This is the golden ratio.

5 0
4 years ago
Which measurement is most accurate to describe the width of a penny 19 mm 8 cm 1 m or 0.3 km
gizmo_the_mogwai [7]
It's either 8 cm or 1 m....i personally think 8 cm is more accurate but, 1 m is still an acceptable answer
5 0
3 years ago
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I need help with number 119
irina [24]
X^2 - (y^2)
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4 0
3 years ago
Write one digit on each side of 10 to make a four digit multiple of 72. How many different solutions does this problem have? The
Viefleur [7K]

If we write 4 to each side of 10, we will get a four digit number 4104, which is a multiple of 72.

To find out other possible solutions, first start with 1 in front of 10.

Now, divide 110 by 72.

The remainder is 38.

We are going to put one more digit after 10.

So, let us check if there is any three digit number whose first two digits are 38 and which is a multiple of 72.

There is no such number since 5 × 72 = 360 and 6 × 72 = 432.

So, there is no four digit number whose first three digits are 110 and which is a multiple of 72.

If we try like this, we can find 4104 is the only solution.

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4 years ago
In which quadrant does the point (–10, –9) lie
ludmilkaskok [199]
The 3rd quadrant bc they are both negative points
5 0
3 years ago
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