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3 years ago

13

amy earns $15 per week for doing chores around the house. write and solve an equation that determines how many weeks she needs t

o do chores to earn $105

2 answers:

anastassius [24]3 years ago

8 0

Answer:

7

Step-by-step explanation:

105 $\div$ 15 is 7.

Furkat [3]3 years ago

4 0

Answer:

15 x 7 =105

Step-by-step explanation:( Amy needs to do chores for 7 weeks and she can earn 105 dollars) BRAINLIEST PLZZ

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Use the distance formula to find the perimeter of the triangle below. Round you answer to the nearest hundredth.

Murrr4er [49]

<u>jAlright, let's take this problem step-by-step</u>:

<u>What is the perimeter</u>:

⇒ all the side-lengths added up

⇒ <em>need</em> to find side-length using distance formula

$Distance_._. Formula=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

- (x₁,y₁): first point

- (x₂,y₂): second point

<u>Let's solve</u>:

Find length of <em>AC</em>

⇒ <em>first point</em>: (5,7)

<em> ⇒ second point: </em>(3,3)

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Find length of AB

⇒ <em>first point:</em> (5,7)

<em> ⇒ second point:</em>(8,6)

<em> </em> $Distance=\sqrt{(8-5)^2+(6-7)^2} =\sqrt{9+1} =\sqrt{10}=3.162$

Find length of BC

⇒<em> first point: </em>(8,6)

<em> ⇒ second point: </em>(3,3)

<em> </em> $Distance = \sqrt{(3-8)^2+(3-6)^2} =\sqrt{25+9} =\sqrt{34}=5.831$

<u>Now let's solve for the perimeter</u>:

$Perimeter = 4.472+ 3.126+ 5.831=13.429$

<u>Answer: 13.43</u> (<em>rounded to the nearest hundredth)</em>

Hope that helps!

#LearnwithBrainly

<em> </em>

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2 years ago

R+2r=105 what is answer

Alik [6]

Answer:

If you're trying to solve for r. r=35

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

r+2r=105

(r+2r)=105(Combine Like Terms)

3r=105

3r=105

Step 2: Divide both sides by 3.

3r/3 = 105/3

r=35

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