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olga55 [171]
2 years ago
9

on the first day of camp, Sara hiked 20 miles in 5 hours. At this rate how long would it take Sara to hike 12 miles?

Mathematics
2 answers:
MakcuM [25]2 years ago
7 0

Answer:

9 hour

Step-by-step explanation:

sara hikes 20 mile in 5 hour

then, sara takes 5\20 hour to hike 1 mile

again if she hike 1 mile in 5\20 hour

then she to hike 12 mile she takes 5x12\20 = 9 hour

Galina-37 [17]2 years ago
5 0

Answer:

3 hours

Step-by-step explanation:

20 ÷ 5 = 4 mph

12 ÷ 4 = 3 hours

hope this explanation makes sense! :)

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the diameter of one species of bacteria is shown. bonnie approximates this measure as 3 x 10^-11 meter. is she correct? explain.
stich3 [128]

Answer:

No

Step-by-step explanation:

No picture of the bacteria provided, but according to some text books its arround 0.2 - 2m in micrometer measurement, so 3 x 10^-11 is far more smaller than the range.

5 0
2 years ago
A textile mill wishes to establish a control procedure on flaws in towels it manufactures. Using an inspection unit of 50 units,
Natasha_Volkova [10]

Answer:

•A c-chart is the appropriate control chart

• c' = 8.5

• Control limits, CL = 8.5

Lower control limits, LCL = 0

Upper control limits, UCL = 17.25

Step-by-step explanation:

A c chart is a quality control chart used for the number of flaws per unit.

Given:

Past inspection data:

Number of units= 100

Total flaws = 850

We now have:

c' = 850/100

= 8.5

Where CL = c' = 8.5

For control limits, we have:

CL = c'

UCL = c' + 3√c'

LCL = c' - 3√c'

The CL stands for the normal control limit, while the UCL and LCL are the upper and lower control limits respectively

Calculating the various control limits we have:

CL = c'

CL = 8.5

UCL = 8.5 + 3√8.5

= 17.25

LCL = 8.5 - 3√8.5

= -0.25

A negative LCL tend to be 0. Therefore,

LCL = 0

4 0
3 years ago
A circular swimming pool is 21 feet in
Aleksandr [31]

Answer:

G. 66 feet

Step-by-step explanation:

Radius = 21/2 = 10.5

Circumference

2 × 3.14 × 10.5

65.94 feet

6 0
3 years ago
Find the circumference and area of a circle with a diameter of 22 inches. Leave your answers in terms of pi.
astra-53 [7]
The circumference formula is 
C=Diameter x π=22 x π, the area formula is A=<span>π x R²
or R=</span><span>D/2=22/2=11

the answer is </span><span>d. C = 22π; A = 121π</span>
4 0
3 years ago
Read 2 more answers
Andrew had $46 he got for his birthday. He split the money into 1/4 to give to the 4 people he owed money too. How much money di
Ivanshal [37]

Answer:

2.75

Step-by-step explanation:

46 divided by 4 is 11r2 then convert the 2 into a decimal which is 11.02 then divide it by 4 which is 2.75 i didn't double check so its its wrong im sorry

3 0
3 years ago
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