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Serggg [28]
2 years ago
12

What is often found around the perimeter of a yard

Mathematics
1 answer:
sp2606 [1]2 years ago
5 0
A fence I think

I hope this was the answer you were looking for

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How much of a 14% iodine solution should be added to 89 ounces of a 47% iodine solution to get a 29% solution
Elza [17]
Whatever% of anything is just (whatever/100) * anything.

x = ounces of 14% iodine.

y = ounces of 29% iodine.

we know that in a 14% iodine solution, 14% is iodine and the rest is something else, we also know that "x" ounces of the solution have 14% of iodine, how much is that?  (14/100) * x, or 0.14x.

likewise, in the 89 ounces of 47% solution there is (47/100) * 89 of iodine.

and likewise as well, in "y" ounces of 29% iodine there is (29/100) * y, or 0.29y of iodine.

bearing in mind that, whatever "x" and "y" may be, x + 89 = y, and that the sum of the iodine amounts also will equate 0.29y.

\bf \begin{array}{lccclll}
&\stackrel{ounces}{amount}&\stackrel{\%~of~iodine}{quantity}&\stackrel{iodine~oz}{amount}\\
&------&------&------\\
\textit{14\% solution}&x&0.14&0.14x\\
\textit{47\% solution}&89&0.47&41.83\\
------&------&------&------\\
mixture&y&0.29&0.29y
\end{array}
\\\\\\
\begin{cases}
x+89=\boxed{y}\\
0.14x+41.83=0.29y\\
--------------\\
0.14x+41.83=0.29\left( \boxed{x+89} \right)
\end{cases}
\\\\\\
0.14x+41.83=0.29x+25.81\implies 16.02=0.15x
\\\\\\
\cfrac{16.02}{0.15}=x\implies 106.8=x
6 0
3 years ago
21. A triangle has vertices (1, 5), (2, 7), and (6, 5). After a reflection and a translation, the
zheka24 [161]

Answer:

See below

Step-by-step explanation:

I am not sure about number 22.  I think that they are asking you to apply the same rules to the point (4, -7), if that is what they mean, the answer is (8,10)

8 0
1 year ago
Between which two values would 75% of the data represented on a box plot lie? Check all that apply.
Inga [223]

Answer:

Hi, everybody, today I'm going to answer this question for you, I took the unit test review, I only got one wrong to be honest, I will tell you which one that was and it's answer, but for now let me answer this question for you. The guy below no offense but you were wrong, the real answer is

the lower quartile and the maximum

the minimum and the upper quartile

I was able to get these two right, and a bonus question with it's own answer.

Mrs. Barnes recorded the grades her students earned on the last chapter test in the frequency table below. The frequency table will be used to make a histogram.

Test Score

Number of Students

31 - 40

1

41 - 50

2

51 - 60

4

61 - 70

6

71 - 80

11

81 - 90

5

91 - 100

4

Which chart has the correct setup for Mrs. Barnes’ histogram?

A 2-column table with 4 rows titled Mrs. Barnes's Histogram. Column 1 has entries interval used, appropriate scale, vertical axis represents, horizontal axis represents. Column 2 has entries 10, 31 to 100, number of students, test scores.

A 2-column table with 4 rows titled Mrs. Barnes's Histogram. Column 1 has entries interval used, appropriate scale, vertical axis represents, horizontal axis represents. Column 2 has entries 10, 0 to 12, number of students, test scores.

A 2-column table with 4 rows titled Mrs. Barnes's Histogram. Column 1 has entries interval used, appropriate scale, vertical axis represents, horizontal axis represents. Column 2 has entries 7, 0 to 12, test scores, number of students.

A 2-column table with 4 rows titled Mrs. Barnes's Histogram. Column 1 has entries interval used, appropriate scale, vertical axis represents, horizontal axis represents. Column 2 has entries 7, 31 to 100, test scores, number of students.

The answer is b, I did a and got it wrong, and it told me the answer is b.

Step-by-step explanation:

8 0
3 years ago
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Help!<br><br> <img src="https://tex.z-dn.net/?f=%5Csf%20%5Csqrt%7Bx-2%7D-x%3D-2" id="TexFormula1" title="\sf \sqrt{x-2}-x=-2" al
Gennadij [26K]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Let's solve for x :

  • \sqrt{x - 2}  - x =  - 2

  • \sqrt{x - 2}  = x - 2

  • 1 =  \dfrac{x - 2}{ \sqrt{x - 2} }

  • 1 =  \sqrt{x - 2}

  • x - 2 = 1

  • x = 3
4 0
2 years ago
A deli sells 2 hot dogs for $2.50. What is the constant of proportionality of dollars per hot dog?
attashe74 [19]

Answer:

$1.25 per hot dog

Step-by-step explanation:

6 0
3 years ago
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