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Ket [755]
2 years ago
5

a tank is 3/7 full of water.After removing 420 litres it became 12/35 full .how much can the tank hold when full? ​

Mathematics
1 answer:
insens350 [35]2 years ago
5 0

Answer:

4900 Litres

Step-by-step explanation:

First we need a common demoninator:

3/7=15/35

Then we subtract the two to figure out how much 420 Litres is:

15/35-12/35=3/35

3/35=420 litres

Divide amount by the numerater for thow much 1/x is.

1/35=140

and multiply by the denomenator to get a full number on your fraction, and therefore a full tank.

140 x 35 = 4900

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Indicate the equation of the given line in standard form. The line through (2, -1) and parallel to a line with slope of 3/4
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Well, for a line with a slope of 3/4, any other parallel line to it, will also have the same slope of 3/4

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\bf \begin{array}{lllll}
&x_1&y_1\\
%   (a,b)
&({{ 2}}\quad ,&{{ -1}})\quad 

\end{array}
\\\\\\
% slope  = m
slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{3}{4}
\\\\\\
% point-slope intercept
y-{{ y_1}}={{ m}}(x-{{ x_1}})\qquad 
\begin{array}{llll}
\textit{plug in the values for }
\begin{cases}
y_1=-1\\
x_1=2\\
m=\frac{3}{4}
\end{cases}\\
\textit{and move everything}\\
\textit{to the left-hand-side}
\end{array}\\

\left. \qquad   \right. \uparrow\\
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4 years ago
Figure 1 and figure 2 are two congruent parallelograms drawn on a coordinate grid as shown below:
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Figure 1 is mapped to Figure 2 by reflection over the y-axis and translation down 10 units.

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mestny [16]

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6 0
3 years ago
Read 2 more answers
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