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ser-zykov [4K]
4 years ago
14

Someone please tell me what (A) and (X) are and how xxx

Mathematics
1 answer:
nirvana33 [79]4 years ago
4 0
Because A and X correspond to the second angle on their line, A is 60 degrees and X is 130
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jim and lisa had a total of $300. After jim boughy a jacket with 2/3 if her money,she had $90 less than lisa. find the cost of t
Yuri [45]

Answer:

$84

Firstly, what we must do, is establish a system of equations:

\frac{2}{3}J = L -90

J + L = 300

Due the circumstances, it is decided we will use the method of substitution:

\frac{2}{3}J = L - 90

\frac{2}{3}J + 90 = L

          ↓

J + \frac{2}{3}J + 90 = 300

Now, we solve the 2-variable equation above:

J + \frac{2}{3}J + 90 = 300

J + \frac{2}{3}J = 300 - 90

J + \frac{2}{3}J = 210

J(3) + (\frac{2}{3}J)(3) = 210(3)

3J + 2J = 630

5J = 630

J = \frac{630}{5}

\bf~J = 126

Now, we must see how much money each one of them had & the price of the jacket:

Now we know that Jim had $126. In other words, $126 is \frac{3}{3} of his money (total money).

So, if Jim has $126, which corresponds to \frac{3}{3} of his money, \frac{2}{3} of his money is:

\frac{126}{3} = 42

126 * \frac{2}{3} = 42 + 42

\bf~126 * \frac{2}{3} = 84

Hope it helped,

BiologiaMagister

3 0
3 years ago
How do I write these
Kruka [31]

You might be able to get the text-to-speech option on your phone to do this for you, since it involves saying the fractions aloud.

1/2 ⇒ one-half

2/3 ⇒ two thirds

1/4 ⇒ one quarter, or one fourth

2/4 ⇒ two fourths, or two quarters

2/5 ⇒ two fifths

5/6 ⇒ five sixths

4/7 ⇒ four sevenths

6/8 ⇒ six eighths

5/11 ⇒ five elevenths

1/12 ⇒ one-twelfth

1/20 ⇒ one-twentieth

_____

IMO, the use of a hyphen or not depends on the context. If the fraction itself is the focus, you might say one twelfth. If it is describing a portion of something else, you might say one-twelfth [of a cake].

8 0
3 years ago
Explain why it is not reasonable to say that 4.23is less than 4.13
Alina [70]
It is not reasonable because the decimal placing on the 4.23 is greater then the one on 413. (2 is bigger then 1). When dealign with decimals it is important to remember that if the numbers before the decimal are the same for both numbers you need to look at the first decimal as though it's the first number. so we know 4 and 4 are the same. Next we look at the .23 and .13. We know that the number 2 is bigger then 1 so it's safe to say that 4.23 is larger then 4,13.
7 0
3 years ago
Read 2 more answers
Which function is the inverse of y=2/3x-6
Dmitry_Shevchenko [17]

Answer:

y = 3(x + 6)/2

Step-by-step explanation:

I'm assuming that you meant   y = (2/3)x - 6.  

If that's correct, start by interchanging x and y, obtaining:

x = (2/3)y - 6

Next, solve for y:  (2/3)y = x + 6.  Multiplying both sides of this equation by (3/2) isolates y, as desired, and results in:

y = 3(x + 6)/2.  This is the inverse of y = (2/3)x - 6.

7 0
4 years ago
Read 2 more answers
Which statement about square root x-5 - square root x = 5 is true?
Musya8 [376]
Hello,

Answer D

\sqrt{x-5} - \sqrt{x} =5
==>(x-5) -2*\sqrt{(x-5)x}+x =25
==>2x-30=\sqrt{x(x-5)}
==>x-15=\sqrt{x(x-5)}
==>x^2-30x+225=x(x-5)
==>225=-5x+30x
==>25x=225
==>x=9
But:

\sqrt{9-5} - \sqrt{9}=\sqrt{4} - \sqrt{9}=2-3=-1≠5

Explanation:

\lim_{x \to \infty}  \sqrt{x-5}- \sqrt{x}



= \lim_{x \to \infty}   \frac{(\sqrt{x-5}- \sqrt{x})*(\sqrt{x-5}+ \sqrt{x})}
{\sqrt{x-5}+ \sqrt{x}}

= \lim_{x \to \infty}   \frac{(-5)}{\sqrt{x-5}+ \sqrt{x}}

= \lim_{x \to \infty}   \frac{-5}{\infty}=0




7 0
3 years ago
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