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3 years ago

HELP QUICK! Which of the following inequalities does the graph represent?

Mathematics

2 answers:

Y_Kistochka [10]3 years ago

8 0

3rd answer.
-1/2 is < than t and t is greater than or equal to 3

Snezhnost [94]3 years ago

5 0

Answer:

C is correct

Step-by-step explanation:

We are given seperately that $t>\frac{-1}{2}$ and $t\leq 3$

As a compound inequality, it is C

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Tpy6a [65]

5/6 - 3/8

Rewrite the fractions to have a common denominator:

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3/8 x 3 = 9/24

Now you have 20/24 - 9/24 = 11/24

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Answer:

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slava [35]

Answer: Senior: $8, Child: 14

Step-by-step explanation:

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2 years ago

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A chemist wants to make 100 liters of a 44% acid solution. She has solutions that are 20% acid and 60% acid.

alexgriva [62]

the first solution is 20% acid, and say we'll be using "x" liters, so how many liters of just acid are in it? well 20% of "x" or namely 0.2x. Likewise for the 60% acid solution, if we had "y" liters of it, the amount of only acid in it is 0.6y.

$\begin{array}{lcccl} &\stackrel{solution}{quantity}&\stackrel{\textit{\% of }}{amount}&\stackrel{\textit{liters of }}{amount}\\ \cline{2-4}&\\ \textit{1st solution}&x&0.20&0.2x\\ \textit{2nd solution}&y&0.60&0.6y\\ \cline{2-4}&\\ mixture&100&0.44&44 \end{array}~\hfill \begin{cases} x+y=100\\\\ 0.2x+0.6y=44 \end{cases}$

$x+y=100\implies y=100-x~\hfill \stackrel{\textit{substituting on the 2nd equation}}{0.2x+0.6(100-x)=44} \\\\\\ 0.2x+60-0.6x=44\implies -0.4x+60=44\implies -0.4x=-16 \\\\\\ x=\cfrac{-16}{-0.4}\implies \boxed{x=40}~\hfill \boxed{\stackrel{100-40}{y=60}}$

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2 years ago

What is the quotient of 42 divided by 9124

Sunny_sXe [5.5K]

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