Answer the following questions CORRECTLY I will know if this is wrong. I WILL REPORT ANY INCORRECT ANSWERS!

2 answers:

7 0

Answer by JKismyhusbandbae: This explanation is short and sweet. An equation states that two things are equal. It will have an equals sign "="

olga nikolaevna [1]2 years ago

6 0

Thank of an equation as a balance where one set of conditions on one side of the equation is made the same as the set of conditions on the other side of the equation. An equal sign ( = ) separates the 2 sets of conditions.

The stipulation put on the 2 sets of conditions is that they really must be equal. You cannot have something like 6 = 4 which would really not be an equation.

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Please help! Thank you

Temka [501]

Answer:

b. the radio of feet to inches

4 0

2 years ago

What’s the answer someone please help lol

serious [3.7K]

a is the answer, as i is irrational no

7 0

3 years ago

A pharmacist has an 18% alcohol solution and a 40% alcohol solution. How much of each should he mix together to make 10 liters o

ladessa [460]

X = amount of the 18% solution

y = amount of the 40% solution

we know the 18% solution has only 18% of alcohol, the rest is maybe water or something, now, how many liters is 18%? well, 18% of anything is just (18/100) * anything, so, 18% of x is just (18/100) *x or 0.18x, and that's how many liters are there.

likewise, how many liters are there in the 40% solution? well, (40/100) * y, or 0.4y, that many.

we know the mixture has to yield 10 liters at 20% alcohol, how many liters of only alcohol is that? well, (20/100) * 10, or 2 liters.

$\bf \begin{array}{lccclll}
&\stackrel{liters}{amount}&\stackrel{alcohol~\%}{quantity}&\stackrel{liters}{alcohol}\\
&------&------&------\\
\textit{18\% solution}&x&0.18&0.18x\\
\textit{40\% solution}&y&0.40&0.4y\\
------&------&------&------\\
mixture&10&0.20&2
\end{array}$

$\bf \begin{cases}
x+y=10\implies \boxed{y}=10-x\\
0.18x+0.4y=2\\
----------\\
0.18x+0.4\left( \boxed{10-x} \right)=2
\end{cases}
\\\\\\
0.18x-0.4x+4=2\implies -0.22x=-2
\\\\\\
x=\cfrac{-2}{-0.22}\implies x=\cfrac{100}{11}\implies x=9\frac{1}{11}$

how much of the 40% solution? well y = 10 - x

3 0

3 years ago

Solve the equation 3 - 4-587 3.87 b. 0.55, -0.55 a. C. 1.53,-1.53 d. 4.98

dexar [7]

Answer: X = 0

Let me know if it’s correct

8 0

3 years ago

What is the answer what should I write down I will mark you the Brainlyiest 40 points so do it good!

Leni [432]

First you can count multiples of 7 all the way up to 84. 7,14,21,28,35,42,49,56,63,70,77,and 84.
Or you can do 7 x 12 equals 84.
Second write down the long division way 84/7.
7 goes into 8 one time write 7 at the top then write one at the bottom bring down the 4 and make it 14
you know 7 x 2 = 14 so 12 x 7 equals 14.

8 0

3 years ago

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