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3 years ago

If the sides of a quadrilateral are in the ratio of 3:5:7:9 and the perimeter is 240 inches, find the length of each side

2 answers:

4 0

Add total units
3+5+7+9=24 uniits
240=24 units
divide both sides by 24
10=1 units
easy

the sides are
30in
50in
70in
90in

ValentinkaMS [17]3 years ago

3 0

Your equation would be 3x + 5x + 7x + 9x = 240
Combine like terms and that would lead you to 24x = 240
Then divide by 24 on both side leaving you with x = 10
Plug in x and your answer would be 30:50:70:90

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at the same time a 15 foot pole casts a 7.5 foot shadow a nearby tree casts an 11 foot shadow how tall is the tree

soldier1979 [14.2K]

answer: 22

15/7.5 = x/11

cross multiply

7.5x = 165

divide by 7.5 on both sides to get the x alone

7.5x/7.5 = 165/7.5

x = 22

the tree is 22 feet

sorry if it’s wrong

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3 years ago

Which of the following systems of inequalities represents the graph?

mixer [17]

Answer:

Option D.

Step-by-step explanation:

Consider the below figure attached with this question.

If a line passes through two points $(x_1,y_1)$ and $(x_2,y_2)$ , then the equation of line is

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

From the below figure it is clear that the a solid line passes through the points (-2,0) and (0,4). So, the equation of related line is

$y-0=\frac{4-0}{0-(-2)}(x-(-2))$

$y=2(x+2)$

$y=2x+4$

$-2x+y=4$

All area above the solid line is shaded. It means the sign of inequality is ≥.

$-2x+y\geq 4$

From the below figure it is clear that the a dashed line passes through the points (2,0) and (0,2). So, the equation of related line is

$y-0=\frac{2-0}{0-(2)}(x-(2))$

$y=-1(x-2)$

$y=-x+2$

$x+y=2$

All area below the dashed line is shaded. It means the sign of inequality is <.

$x+y$

System of inequality is

$-2x+y\geq 4$

$x+y$

Therefore, the correct option is D.

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3 years ago

Nate made 8 loaves of bread on Monday and 10 more on Tuesday. He gave an equal number to each of his 9 neighbors. How many loave

mars1129 [50]

Answer:

Step-by-step explanation:

8 + 10 = 18

18/9 = 2

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3 years ago

A 99 ft length of wire is to be cut into 2 pieces, so that the longer piece is eight feet longer than six times the shorter piec

Serhud [2]

here's the solution,

let the length of shorter peice = x

then the lenght of longer peice = 6x + 8

now, we know that the sum of length of peices measures 99 feet,

So,

=》x + 6x + 8 = 99

=》7x = 91

=》x = 13

shorter piece length = 13 feet

longer peice length = 13 × 6 + 8 = 78 + 8 = 86 feet

5 0

3 years ago

Ok so I wanted to make sure my math was correct Is 274.43 - 20.46 - 25.89 = 228.08

romanna [79]

<h2>yes you are absolutely correct.... </h2>

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3 years ago

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