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andriy [413]
3 years ago
7

No freeze antifreeze mixture contains 30% alcohol.how many alcohol is there in 15 quarts of no freeze?

Mathematics
1 answer:
insens350 [35]3 years ago
8 0

\bf \begin{array}{|c|ll}
\cline{1-1}
\textit{a\% of b}\\
\cline{1-1}
\\
\left( \cfrac{a}{100} \right)\cdot b
\\\\
\cline{1-1}
\end{array}~\hspace{5em}\stackrel{\textit{30\% of 15}}{\left( \cfrac{30}{100} \right)15}\implies 4.5

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Kahn academy question:
Rufina [12.5K]

Answer:

  2.97×10³

Step-by-step explanation:

3600 - 6.3×10² = 3600 -6.3×100 = 3600 -630 = 2970

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3 years ago
ANSWER ASAP GIVING BRAILIEST AND STUFF!
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Answer:

24s^2, 54s^2, 96s^2

Step-by-step explanation:

Let s represent the initial side length of the cube.  Then the area of each face of the cube is A = 6s^2 (recalling that the area of a square of side length s is s^2).

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If a is half b , and b is twice c , then a:c=​
faust18 [17]

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3 years ago
three numbers are in an arithmetic progression. Their sum is 3 and the sum of their squares is 11. what are the three numbers
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The three numbers are 12, 18 and 24

Arithmetic progression

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a-d, d, a+d ...

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If the sum of their squares is 11, then;

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2a²+3d² = 11 ....... 2

Solving the equations simultaneously, d = 6 and a = 12

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second term = 18

Thirs term = 24

Hence the three numbers are 12, 18 and 24

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