3 years ago

Help out dudes!! #38.

Mathematics

2 answers:

Verdich [7]3 years ago

4 0

You earn $15 per lawn. 1 lawn would be $15. 15(1) is 15.
7 lawns would be 15(7), which is 105.

mario62 [17]3 years ago

3 0

The answer is 105

Hope it helps

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Find the value of x. Then find the measure of each interior angle. Show work algebraically

OleMash [197]

Answer:

Step-by-step explanation:

W=180-144

W=36 degrees

The sum of angles in a triangle always sum to 180 degrees.

6x+1+7x+36=180

13x+37=180

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x=11

U=6x+1

U=6(11)+1=67 degrees

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V=7(11)=77 degrees so

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3 years ago

Find the positive value of x in the geometric sequence 7x-2,4x+4,3x

Goryan [66]

Hello,

Let's assume k the ratio.

$
 \left \{ {{3x=k*(4x+4)} \atop {4x+4=k*(7x-2)}} \right. \\\\
 \left \{ {{3x-4kx=4k} \atop {4x-7kx=-2k-4}} \right. \\\\
 \left \{ {{x(3-4k)=4k} \atop {x(4-7k)=-2k-4}} \right. \\\\
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\dfrac{4k}{3-4k}=\dfrac{-2k-4}{4-7k}\\\\

36k^2-6k-12=0\\
6k^2-k-2=0\\

\boxed{k= \dfrac{2}{3} \ or\ k= -\dfrac{1}{2}}\\\\

x=\dfrac{4*\dfrac{2}{3} }{3-4*\dfrac{2}{3} }=8\\
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$

$\boxed{x= 8 \ or\ x= -\dfrac{2}{5}}\\\\$

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3 years ago

Andrea is traveling with her family in the car. If the car is moving at an average speed of 55 miles per hour, how many miles ca

Crazy boy [7]

Rate * time = distance traveled
55 * 4 = 220 miles

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2 years ago