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Natali [406]
3 years ago
7

it takes 40 minutes for 8 people to paint 4 walls how many minutes would it take 10 people to paint 7 walls

Mathematics
1 answer:
Alex Ar [27]3 years ago
5 0

Answer: 70 minutes


Step-by-step explanation:

Each person takes 5 minutes to do half a wall and another person will take 10 minutes. So it will be 70 minutes


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Darla drives at a constant speed of 45 miles per hour. If she drives for y miles and it takes her x hours, write the two-variabl
Darya [45]

Answer:

y = 45x miles

Step-by-step explanation:

Speed is the rate of change of distance with time. Mathematically,

speed = distance/time

Given that Darla travels at a constant speed of 45 miles per hour and for y miles, it takes her x hours then

45 = y/x

multiply both sides by x

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then the number of miles (y) Darla can drive in x hours

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2 years ago
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C. The decimal terminates after 2 decimal places.

Step-by-step explanation:

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8 0
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Is there a picture?

Step-by-step explanation:

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3 years ago
Someone please help me make a proof for the bottom question
Lerok [7]

Answer:

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Step-by-step explanation:

Statement 1.

∠D = ∠C, M is the midpoint of DC and ∠1 = ∠2

Reason 1.  

Given

Statement 2.

Between Δ DBM and Δ CAM,  

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(ii) ∠D = ∠C  and  

(iii) ∠DMB = ∠CMA

Reason 2.

(i) given  

(ii) given and  

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Statement 3.

Δ DBM ≅ Δ CAM

Reason 3.

By angle-side-angle rule.

Statement 4.

DB = CA

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Corresponding sides of two congruent triangles. (Answer)

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