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allsm [11]
2 years ago
14

Is it christmas yet?

Mathematics
1 answer:
tangare [24]2 years ago
6 0
Yessssssssssssssssssssssss
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Please help me with this question!
gavmur [86]
First off, let's convert the percentages to decimal format, so our 77% turns to 77/100 or 0.77, and our 55% turns to 55/100 or 0.55 and so on

now, the sum of both salines, must add up to the 77% mixture, let's say is "y"
so, 11 + 4 = y, and whatever the concentration level is, must also sum up to the mixture's concentration of 77%

anyway   thus

\bf \begin{array}{lccclll}
&amount&concentration&
\begin{array}{llll}
concentrated\\
amount
\end{array}\\
&-----&-------&-------\\
\textit{first sol'n}&11&x&11x\\
\textit{second sol'n}&4&0.55&2.20\\
------&-----&-------&-------\\
mixture&y&0.77&0.77y
\end{array}\\\\
-------------------------------\\\\
\begin{cases}
11+4=y\implies 15=\boxed{y}\\
11x+2.2=0.77y\\
----------\\
11x+2.2=0.77\cdot \boxed{15}
\end{cases}

solve for "x"
6 0
3 years ago
Write an equation in point-slope format of the line having the given slope that contains the given point.
marta [7]
1) y + 1 = (1/4)(x - 3)
2) y - 6 = 0(x + 2)
3) y - 3 = -1(x + 2)
4) y + 7 = -2(x + 6)
3 0
3 years ago
What is the value of 4 to the 3 power divided by 2 to the third power?
Sholpan [36]

Answer:

8

Please Vote Me Brainliest. Thank You.

7 0
2 years ago
Read 2 more answers
The irrational number square root 67 is less than [blank]
Solnce55 [7]

Answer:

The square root of 67 is less than the whole number of 9

Step-by-step explanation:

8 squared is 64

9 squared is 81

67 is in between them

4 0
2 years ago
Express 0.5854 as a fraction.
rusak2 [61]
5854 out of 10000 because it is 5854 ten thousandths
8 0
3 years ago
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