There are 180 cars in a parking lot. 45% are blue . How many blue cars are there?

Mathematics

2 answers:

Neko [114]3 years ago

7 0

Answer:

Step-by-step explanation first step 180-45 = 135 . 135 percent blue cars

swat323 years ago

3 0

There are 36 blue cars because 40% of 180 is 36

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Will ran the diagonal distance across a square field measuring 40 yards on each side. James ran the diagonal distance across a r

slamgirl [31]

Will ran the longest

He ran for 56.57 yards, 13.56 yards longer than James.

Step-by-step explanation:

Step 1 :

Will ran the diagonal across a square field measuring 40 yards in each side.

The diagonal of a square can be obtained by the square root of the sum of the squares of its 2 sides [Because it forms the hypotenuse of a right angle triangle]

Hence when the side is 40 yards , the diagonal would be

$\sqrt{40^{2} + 40^{2}} = \sqrt{1600 + 1600} = \sqrt{3200} =56.57 yards$

So Will ran for 56.57 yards

Step 2 :

James ran the diagonal of a rectangular field with 25 yards length and 35 yards width.

The diagonal of the rectangle can be obtained by the square root of the sum of squares of its length and width.

Hence when the length is 25 yards and width is 35 , the diagonal would be

$\sqrt{35^{2} + 25^{2}} = \sqrt{1225 + 625}} = \sqrt{1850} = 43.01$ yards

So James ran for 43.01 yards

Step 3 :

Will ran for 56.57 yards and 43.01 yards.

Hence Will ran for longer distance of 56.57 yards, which is 13.56 yards more than James.

5 0

3 years ago

Jayden and Chandra are cleaning the house. It has 12 rooms, and each room is about the same size. When Jayden cleans by himself,

madam [21]

We know that

Jayden cleans 12 rooms in---------------> 6 hours
X rooms-------------------------------------> 4 hours
X=4*12/6--------> 48/6---------> 8 rooms
that means Jayden cleans in 4 hours 8 rooms

Chandra cleans 12 rooms in---------------> 12 hours
X rooms-------------------------------------> 4 hours
X=4*12/12--------> 48/12---------> 4 rooms
that means Chandra cleans in 4 hours 4 rooms

the answer is
Jayden = 8 blankrooms
Chandra = 4 blankrooms

6 0

3 years ago

NEED HELP, please help ASAP!!!!!!!!

nadya68 [22]

Answer: B

Step-by-step explanation:

6 0

2 years ago

Simplify; 5a+3b-7a+4b

serg [7]

Combine like terms:

5a-7a=-2a