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guapka [62]
3 years ago
13

I need help with this please

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
4 0

Answer:

31/8

Step-by-step explanation:

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The mass of a t-shirt is approximately 150 grams. What is the approximate mass of 20 t-shirts in kilograms?
bazaltina [42]

Answer:

Step-by-step explanation:

Cost of  a t-shirt = 150 grams

Cost of  20 t-shirts = 150*20

                              = 3000 gram   { 1000 g = 1 Kg}

                              = 3000/1000 = 3 kilogram

6 0
4 years ago
An isosceles triangle has a base with length 15 inches and two congruent sides with lengths of 15 inches each. Find the height o
SpyIntel [72]
An isosceles triangle is a special triangle having at least 2 equal sides equal. But in this case, since all sides are equal having a length of 15 inches, this is actually an equilateral triangle. 

When you create a perpendicular bisector from the top vertex to the midpoint of the base, you get a right triangle with the hypotenuse equal to 15 inches, a base equal to half of 15 because it was bisected, and the height. Therefore, we use the pythagorean theorem. The solution would be

h = √(15)^2 +(15/2)^
h = 13.0 meters
4 0
3 years ago
Need help please make sure your right people have been saying wrong answers​
sweet [91]

Answer:

C

Step-by-step explanation:

Trust me, take the square root of 24, which divides into 2 x 2 x 2 x 3, and you pull a pair of 2 out, left inside a 6

7 0
3 years ago
Read 2 more answers
The average height of 8 adults is 1.8 m. What is the sum of their heights? How do I work this out without a calculator?
Katen [24]
Well, the average of a sum of number is found by adding each given number and dividing that number by the amount of given numbers. 
Example: 5+4+3+8=20 
                and 20/4 = 5, the average of the numbers
Multiply 1.8 by 8.0 using this format:

1.8
x8.0
--------


Hope this helped
5 0
3 years ago
In a circle with a radius of 6 ft, an arc is intercepted by a central angle of 3π/2 radians.
slamgirl [31]

Answer:

Option 4 - L=9\pi ft.

Step-by-step explanation:

Given : In a circle with a radius of 6 ft, an arc is intercepted by a central angle of 3π/2 radians.

To find : What is the length of the arc?

Solution :

Length of an arc is given by:

L=r\theta

where r is the radius of the circle,  r= 6 ft.

and \theta is the angle in radian, \theta=\frac{3\pi }{2}

Substitute the value given in the formula,

L=r\theta   

L=6\times \frac{3\pi }{2}   

L=3\times3\pi

L=9\pi

Therefore, Option 4 is correct.

The arc of length is L=9\pi ft.

8 0
4 years ago
Read 2 more answers
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