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3 years ago

PLZZ HELP I WILL GIVE YOU 20 POINTS‼️‼️

Mathematics

2 answers:

guajiro [1.7K]3 years ago

4 0

Answer:

Its 55

Step-by-step explanation:

The total angles of a triangle is 180 degrees. subtract 70 from that and you get 110. Then because both 1 and 2 are congruent you divide 110 equally by 2 and get 55.

Don't know if this made sense but hope it helped :)

Aloiza [94]3 years ago

3 0

The answer will be B 55
because 55+55+70=180

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David hikes 21/4 miles in 1/2 an hour. What is his rate in miles per hour? At this rate, how long will it take him to walk 18 mi

harkovskaia [24]

Answer:

A) speed = 10.5 miles per hour

B) Time taken by him = 1.714 hours

C) Distance = 10.5 mph × 7 hours = 73.5 miles

Step-by-step explanation:

Given as :

The distance cover by David = $\frac{21}{4}$ miles = 5.25 miles

The time taken by David = $\frac{1}{2}$ hours = 0.5 hours

Let the speed = x mile per hour

So, Distance = Speed × Time

A)or, Speed = $\frac{Distance}{Time}$

Or, Speed = $\frac{5.25}{0.5}$

∴ speed = 10.5 miles per hour

B) Again The Distance cover by him = 18 miles

SO, with speed 10.5 miles per hour

The Time taken by him = $\frac{Distance}{speed}$ hours

Or, Time taken by him = $\frac{18}{10.5}$ hours

∴ Time taken by him = 1.714 hours

C) Again the Time taken by him = 7 hours

So, Distance cover by him with speed 10.5 mph

Or, Distance = 10.5 mph × 7 hours = 73.5 miles

A) speed = 10.5 miles per hour

B) Time taken by him = 1.714 hours

C) Distance = 10.5 mph × 7 hours = 73.5 miles Answes

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3 years ago

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Sergeu [11.5K]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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