4 years ago

Solve The Equation Please

Mathematics

1 answer:

baherus [9]4 years ago

8 0

<span>The answer for the equation 4 2/5x = 12 1/10 is B 2 3/4 </span>

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Jen has $24 to spend on five pens after buying them she had $14. How much did each pen cost?

Whitepunk [10]

$24-$14=$10
$10÷5=$2

Each pen cost $2.

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3 years ago

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If A ( 3, 5) and B (1, 4) lie on the graph of the line mx+cy = 7, find m and c

Diano4ka-milaya [45]

Answer:

m = -1, c = 2

Step-by-step explanation:

if A ( 3, 5) and B (1, 4) lie on the graph of the line mx + cy = 7, then their coordinates satisfy the equation of the line:

A: $3m+5c=7$

B: $m+4c=7$

From the second equation:

$m=7-4c$

Substitute it into the first equation:

$3(7-4c)+5c=7\\ \\21-12c+5c=7\\ \\-12c+5c=7-21\\ \\-7c=-14\\ \\c=2\\ \\m=7-4\cdot 2=7-8=-1$

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3 years ago

Find the area of the convex polygon with vertices (0,5), (-1,2), (4,4), (-3,-4) and (2,0).

kumpel [21]

The area of the convex polygon is 21.5 square units

<h3>How to determine the area of the convex polygon?</h3>

The vertices are given as:

(0,5), (-1,2), (4,4), (-3,-4) and (2,0)

The area is then calculated as:

A = 0.5 * |x1y2 - x2y1 +x2y3 - x3y2 + ....... |

So, we have:

A = 0.5 * |-1 * 5 - 2 * 0 + 0 * 4 - 5 * 4 + 4 * 0 - 4 * 2 +2 * -4 - 0 * -3 - 3 * 2 + 4 * 1|

Evaluate

A = 0.5 * |-43|

Remove the absolute bracket

A = 0.5 * 43

This gives

A = 21.5

Hence, the area of the convex polygon is 21.5 square units

Read more about convex polygon at:

brainly.com/question/14522707

#SPJ1

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2 years ago

Fine the sum of the first 17 terms of the arithmetic sequence 10,14,18,22,26

Natasha2012 [34]

10,14,18,22,26,30,34,38,42,46,50,54,58,62,66,70,74

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4 years ago

105.6 liters per hour to liters per minute

Jlenok [28]

Answer:

1.76 liters per minute.

Step-by-step explanation:

The answer is 1.76 because 105.6 divided by 60 is 1.76

P.S Can I have brainliest?

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3 years ago

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