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3 years ago

Please help i will give branliest!!!

Mathematics

1 answer:

Pepsi [2]3 years ago

5 0

Answer:b

Step-by-step explanation:

3.5*5*.5=8.75

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The area of a rectangular field is 48m2 and one of its sides is 6m . How long will a lady take to cross the field diagonally at

tatiyna

Answer:

It will take her approximately 28 seconds to cross the diagonal of the pitch

Step-by-step explanation:

If we can find the length of the diameter of the field (in Metres), we can easily find the time it takes her to cross this length using motion equations.

Step one: Find the length of the field from its area.

The field is rectangular in shape. The area of the field is 48m^2. To get the area of the field, we had to multiply its length and its breadth.

i.e area = length X breadth.

Let us assume that the breadth = 6m

its length will be area / breadth = 42/ 6 = 7m

The length of the pitch = 7 m

Step Two: Find the length of the diagonal using Pythagoras' theorem.

From Pythagoras'theorem, the length of the diagonal can be obtained by

$diagonal = \sqrt{l^2 +b^2}$

$diagonal = \sqrt{6^2+ 7^2} = 9.22m$

The length of the diagonal is 9.22m

Step three: Find the time using her speed and the distance she needs to cover.

Time = distance / speed

time = 9.22 /20 = 0.46 minutes

It will take her approximately 28 seconds to cross the diagonal of the pitch

6 0

3 years ago

Which of the following is a correct interpretation of the expression 5−8

notka56 [123]

Answer:

<u>start at 5 on the number line and move 8 to the left.</u>

Step-by-step explanation:

7 0

3 years ago

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How do I type a number 5 exponent and a fraction?

VladimirAG [237]

Answer:

1/2^4

Step-by-step explanation:

example

3 0

3 years ago

Last month you spent $40 on clothing. This month you spent 120% of what you spent last month. Set up a proportion to model thi

andreyandreev [35.5K]

Answer:

$48

Step-by-step explanation:

Given that:

Money spent on clothing last month = $40

Money spent this month is 120% of the spending of the last month.

To find:

A proportion to model this situation.

And the spending done this month?

Solution:

Let us have a look at 120% first.

$120\%= \dfrac{120}{100} = \dfrac{6}{5}$

$\frac{6}{5}$ of $x$ can be found by comparing $x$ with 5, then we have to find the equivalent of 6.

Here, $x$ is 40.

5 parts are equivalent to 40

1 part is equivalent to $\frac{40}{5} = 8$

6 parts are equivalent to $8\times 6 = 48$

simply:

$40 \times \dfrac{120}{100} = 48$

4 0

3 years ago

If a restaurant sells 210 pizzas per day and wants a ratio of 3 drinks sold per pizza, how many drinks would they need to sell?

r-ruslan [8.4K]

(3 drink/pizza) times (210 pizza) = <u>630 drinks</u>

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4 years ago