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3 years ago

Can somone pls help me? 3/5 of 65? And 2/3 of 210 and 2/7 of 42

Mathematics

1 answer:

marin [14]3 years ago

3 0

Answer:

3/5 of 60 is 36

2/3 of 210 is 140

2/7 of 42 is 12

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there is 3/5 liter of milk left in a container. A child drinks 2/3 of it. How many liters of milk does the child drink

FrozenT [24]

Answer:

6/15

Step-by-step explanation:

3/5*2/3=6/15

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3 years ago

The area of a rectangle is 70 m², and the length of the rectangle is 11 m less than three times the width. Find the dimensions o

11111nata11111 [884]

Step-by-step explanation:

the area of a rectangle is

length × width

in our case

length × width = 70 m²

length = 3×width - 11

we can use this second equation in the first and get

(3×width - 11) × width = 70

3×width² - 11×width - 70 = 0

the general solution to a quadratic equation is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 3

b = -11

c = -70

x = (11 ± sqrt((-11)² - 4×3×-70))/(2×3) =

= (11 ± sqrt(121 + 840))/6 =

= (11 ± sqrt(961))/6

x1 = (11 + 31)/6 = 42/6 = 7

x2 = (11 - 31)/6 = -20/6 = -10/3

the negative solution is not applicable for a length in an object.

so, only x1 = 7 m is our solution.

the width of the rectangle is 7 m.

the length = 3×width - 11 = 3×7 - 11 = 21-11 = 10 m

7 0

2 years ago

Write your question here (Keep it simple and clear to get the best answer) If jun has 12 T-shirt 6 pairs of parts, and 3 pairs o

Talja [164]

Answer:

the number of possibilities that can be drace himself up for the day is 216

Step-by-step explanation:

Given that

jun has 12 t-shirts,6 pairs of pants and 3 pairs of shoes

We need to find out the possibilities that can be drace himself up for the day

So here

$= 12C_1 \times 6C_1 \times 3C_1\\\\= \frac{12!}{1!(12 - 1)!} \times \frac{6!}{1!(6 - 1)!} \times \frac{3!}{1!(3 - 1)!}\\\\= \frac{12!}{1!(11)!} \times \frac{6!}{1!(5)!} \times \frac{3!}{1!(2)!}\\\\= 12 \times 6 \times 3\\\\= 216$

Hence, the number of possibilities that can be drace himself up for the day is 216

The same would be considered and relevant too

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3 years ago

Equation to 2 cups peaches to 3 cups cherries to make 60 cups how many cups of peaches would i need

allochka39001 [22]

Answer:

Step-by-step explanation:

2*30= 60

3*30= 90

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4 years ago

Avi's dining room measures 124 square feet and is in the shape of a square. Which is the best estimate of the length of

Katen [24]

Answer: Option C is correct

11.1 feet

Step-by-step explanation: Area of the square(A) is given by:

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3 years ago