3 years ago

John was swimming for hour and a half hours at a speed of 2 miles per hour. How far did he swim?

Mathematics

2 answers:

alisha [4.7K]3 years ago

6 0

Answer: 1 mile.

Explanation: 1/2 of an hour is 1 mile because the speed was 2 miles an hour so if you do half of that it is 1 mile.

Dahasolnce [82]3 years ago

6 0

Answer:

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Mary having her living room and bedroom painted. Interior Designs USA charges $60.00 to evaluate the space plus $35.00 per hour

Lera25 [3.4K]

The last one is correct because 60+35+35+35=165
55+55+55=165

8 0

3 years ago

You will begin with a relatively standard calculation. consider a concave spherical mirror with a radius of curvature equal to 6

vodomira [7]

We are given a concave spherical mirror with the following dimensions:

Radius = 60 cm; D o = 30 cm
Height = 6 cm; h o = 6 cm

First, we need to know the focal length, f, of the object (this should be given). Then we can use the following formulas for calculation:

Assume f = 10 cm

1/ f = 1 /d o + 1 / d i
1 / 10 = 1 / 30 + 1 / d i

d i = 15 cm

Then, calculate for h i:

h i / h o = - d i / d o

h i / 6 = - 15 / 30

h i = - 3 cm

Therefore, the distance of the object from the mirror is 3 centimeters. The negative sign means it is "inverted".

6 0

2 years ago

A youth soccer field has an perimeter of 120 meters. The length of the field is

baherus [9]

Answer:

25 meters

Step-by-step explanation:

Since it is a rectangle, the formula of the perimeter will be 2w+2l.

35(2)+2(x)=120.

2x=50

x=25

3 0