How to answer this question because i don’t understand

Mathematics

2 answers:

horrorfan [7]2 years ago

5 0

Answer:

#1 THE LENGTH IS 24 FT, WIDTH IS 12 FT..... #2 DISTANCE IS 7

Step-by-step explanation:

ON PROBLEM ONE ITS SAYING FOR EVERY 1 CM ITS EQUALY TO 4 FEET, SO MULTIPLY 6CM*4 FEET OR 1*4 + 1*4 + 1*4 + 1*4 + 1*4 +1*4=24

YOU DO THE SAME FOR THE WIDTH WHICH WOULD BE 3CM*4FT=12

ITS THE SAME FOR THE SECOND PROBLEM TO YOUD DO 2*3 1/2=7

LekaFEV [45]2 years ago

3 0

Step-by-step explanation:

I'm going to answer number one.

The figure you are given is a scale copy- a smaller version of the real thing with the same ratio of measurements. So, since we have a 6cm length and 1 cm is supposed to be 4 feet, multiply 6 by 4 to get 24 feet as the real length.

We have 3 cm as width, so multiply that by 4 to get 12 feet as the real width

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389,422 change all the digits

alexira [117]

389,422 rounded is 400,000.

6 0

3 years ago

a certain number of two digit is three times the sum of its digit and if 45 added to it the digit will be reversed find the numb

bogdanovich [222]

· Author has 184 answers and 67.6K answer views
Let the number be (10 x + y)

Then, 10 x + y = 3 * (x + y) (given)

Or, 10 x + y = 3 x + 3 y

Or, 10 x - 3 x = 3 y - y

Or, 7x = 2 y

Or, x = 2 y / 7 ( Eq. 1)

Also, 10 x + y + 45 = 10 y + x ( given)

Or, 10 x - x = 10 y - y - 45

Or, 9 x = 9 y - 45 ( Eq. 2)

Substituting the value of x from (Eq. 1) in (Eq. 2), we have:

9 * 2 y / 7 = 9 y - 45

Or, (9 y ) - (18 y / 7) = 45

Or, 63 y - 18 y = 315

Or, 45 y = 315

Or, y = 7

From (Eq. 1),

x = 2 * 7 / 7 = 2

So, the number is 10 x + y = (10 * 2) + 7 = (20 + 7) = 27

Answer

Check:

Sum of the digits = 2 + 7 = 9

9 * 3 = 27 ✓

Adding 45 to the number 27, we get 72. So, the digits get reversed.

5 0

3 years ago

Is -3y = 5x + 4 perpendicular

aivan3 [116]

Answer:

no it is not perpedicular

Step-by-step explanation:

I plugged the equation into a graphing calculator and the line does not appear to be perpendicular