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blsea [12.9K]
2 years ago
15

Angle rst is a right angle

Mathematics
1 answer:
12345 [234]2 years ago
7 0

90 degrees is a right angle

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1) A cyclist travels a distance of 90 miles in 5 hours. What
Nostrana [21]

Answer:

Step-by-step explanation: <u>Speed</u> is distance an object travelled per unit time.

It is represented by letter v and can assume various units.

1) v=\frac{distance}{time}=\frac{d}{t}

v=\frac{90}{5}

v = 18 miles per hour

Her average speed is 18 mph.

2) Rearraging formula for distance:

d = v.t

d = 70 * 4

d = 280 miles

You would travel 280 miles.

3)  v=\frac{d}{t}

v=\frac{315}{6}

v = 52.5 mph

My average speed is 52.5 mph.

4) Rearranging formula to determine time:

t=\frac{d}{v}

t=\frac{210}{90}

t = 2.34 hours

It will take 2 hours and half to arrive in Leeds. So, we will be expected to arrive at 12:04.

5) The unit change but the way of calculating time is the same.

t=\frac{2000}{4}

t = 500 s

or t = 8.34 minutes

It will take, for an athlete to run 2000m, 8.34 minutes.

6) a) All units must match, so for a speed in mph:

45 minutes is 0.75 hours. Total time is 8.75 hours.

v=\frac{420}{8.75}

v = 560 mph

The average speed is 560 mph.

b) t=\frac{d}{v}

t=\frac{420}{63}

t = 6.67 hours

Sam will take 6.67 hours to covered the distance.

4 0
2 years ago
Y=y = 2x -4 when x= 2
Dominik [7]
Y would equal 0. 2x2=4 and 4-4=0.
7 0
2 years ago
40% de cuanto son 32?
OlgaM077 [116]

Do not speak Spanish

4 0
3 years ago
Read 2 more answers
Consider the trapezoid below.
Nuetrik [128]

Answer:

57cm²

Step-by-step explanation:

area for trapezoid=

b¹+b²=x

x÷2=v

v×h=z

h=height

b=base

14+5=19

19÷2=9.5

9.5×6=57

3 0
2 years ago
3. The triangles are similar. Find the value of x.
BlackZzzverrR [31]

Answer:

yeah

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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