7 1⁄5 – 6 2⁄5 = ? A. 13 3⁄5 B. 1 4⁄5 C. 4⁄5 D. 1 1⁄5

Mathematics

2 answers:

Nadusha1986 [10]3 years ago

8 0

Answer:

Option (c) is correct.

Expression $7\frac{1}{5}-6\frac{2}{5}$ simplified to $\frac{4}{5}$

Step-by-step explanation:

Given : expression $7\frac{1}{5}-6\frac{2}{5}$

We have to find the value of the given expression $7\frac{1}{5}-6\frac{2}{5}$

Consider the given expression $7\frac{1}{5}-6\frac{2}{5}$

$7\frac{1}{5}=frac{36}{5}$

and $6\frac{2}{5}=\frac{32}{5}$

Thus, $7\frac{1}{5}-6\frac{2}{5}$ becomes

$\frac{36}{5}-\frac{32}{5}$

LCM (5,5) = 1

Thus, $\frac{36}{5}-\frac{32}{5}=\frac{36-32}{5}=\frac{4}{5}$

Thus, Expression $7\frac{1}{5}-6\frac{2}{5}$ simplified to $\frac{4}{5}$

konstantin123 [22]3 years ago

4 0

7 1/5 - 6 2/5

36/5 - 32/5 = 4/5

OPTION C IS YOUR ANSWER

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Helen [10]

Answer:

$\huge\boxed{2329 \ \text{pounds}}$

Step-by-step explanation:

In order to solve this equation, let's see what we already know.

We know two points on the graph <em>which we can use to find the slope</em>

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However, this can come useful to find the slope between the two points, which is the slope for the entire graph (since this is linear). The slope between two points is usually defined as $\frac{\Delta y}{\Delta x}$ (change in y / change in x). Our two points are (18, 2017) and (48, 2212).

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Now that we know the slope, we can substitute inside our equation in slope intercept form.

$y = 6.5x+b$

We have yet to find b, the y-intercept (how much the plane itself weighs). To find b, we can substitute a point on the graph into the equation and solve for b. We know that the point (18, 2017) is on the graph so let's use that.