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erastova [34]
4 years ago
12

A gardener owns an old, petrol-driven mower. It has a fuel tank with a capacity of half a gallon. How many centilitres is this?

(1 gallon ≈ 4.5 litres)
Mathematics
1 answer:
JulijaS [17]4 years ago
5 0
If 1 gallon = 4.5 liters, then 1/2 a gallon will equal half of 4.5 liters....which = 2.25 liters

1 liter = 100 centiliters.....so 2.25 liters = (2.25 * 100) = 225 centiliters <=
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the area of a window is 40 square feet. the length is the square root of 20 feet. what is the width of the window
Irina18 [472]
----------------------------------------------------
Given information
----------------------------------------------------
Area = 40ft²
Length = √20 ft

----------------------------------------------------
Formula
----------------------------------------------------
Area = Length x Width

----------------------------------------------------
Find Width
----------------------------------------------------
40 = √20 x width
Width = 40 ÷ √20
Width = 40 ÷ 2√5
Width = 20 ÷ √5
Width =  \frac{20}{ \sqrt{5} }

Answer: \boxed {Width = \frac{20}{ \sqrt{5} }}

3 0
4 years ago
The circumference of a coin is 12cm. What is the radius and diameter?
Helga [31]
The diameter is 12 cm and the radius is alsays half of the diameter so it will be 6 cm
4 0
3 years ago
n a group of 40 people, 10 people are healthy. The 30 unhealthy people have either high blood pressure, high cholesterol, or bot
aalyn [17]

Answer:

If a person is randomly selected from this group, the probability that they have both high blood pressure and high cholesterol is P=0.25.

Step-by-step explanation:

We can calculate the number of people from the sample that has both high blood pressure (HBP) and high cholesterol (HC) using this identity:

N(\text{HBP or HC})=N(\text{HBP})+N(\text{HC})-N(\text{HBP and HC})\\\\\\ N(\text{HBP and HC})=N(\text{HBP})+N(\text{HC})-N(\text{HBP or HC})\\\\\\ N(\text{HBP and HC})=15+25-30=10

We can calculate the probability that a random person has both high blood pressure and high cholesterol as:

P(\text{HBP and HC})=\dfrac{10}{40}=0.25

3 0
3 years ago
The scatter plot shows the relationship between the time since Martha has left work and the distance she is from home.
telo118 [61]
The correct answer is A.

The independent variable is time and the dependent variable is distance; this means the slope tells us how far she goes per minute.  Since the slope is negative and we are referring to her distance from her house, this means the distance from her house is decreasing, which means she is getting closer to her house.
5 0
3 years ago
A dance school has 63 ballet dancers. If 42% of the total number of dancers in the school are ballet dancers, what is the total
Lena [83]
42% of what is 63

0.42x = 63
x = 63/0.42
x = 150...so there are 150 dancers in the school
5 0
3 years ago
Read 2 more answers
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