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3 years ago

HELP What is angle 1,2,3,4

Mathematics

1 answer:

Maksim231197 [3]3 years ago

4 0

Answer:

1. 51 degrees

2. 18 degrees

3. 123 degrees

4. 39 degrees

Step-by-step explanation:

angle 1 + 72 + 57 = 180 degrees

angle 2 + 72= 90 degrees

angle 3 + 57 = 180 degrees

angle 4 + 18 + 123 = 180 degrees

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Georgia [21]

Answer:

Therefore his average speed for the entire trip is 8 mph.

Step-by-step explanation:

Given, In 50 minutes Luis traveled uphill to gift store at 6 mph.

6 mph means in 1 h= 60 minutes Luis can covered 6 mile.

In 1 minutes Luis can covered $\frac{6}{60}$ mile.

In 50 minutes Luis can covered $\frac{6\times 50}{60}$ mile

= 5 mile

Again when he come back at home, the speed was 12 mph.

12 mph means in 1 h= 60 minutes Luis can covered 12 mile.

Therefore he traveled 12 mile in 60 minutes

He traveled 1 mile in $\frac{60}{12}$ minutes.

He traveled 5 mile in $\frac{60\times 5}{12}$ minutes

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Total time for the entire trip is = (50+25) minutes = 75 minutes

$\textrm{Average speed}=\frac{\textrm{Total distance}}{\Textrm {total time}}$

$=\frac{10}{75}$ m/min

$=\frac{10\times 60}{75}$ mph

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Therefore his average speed for the entire trip is 8 mph.

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