How many times does 40 go into 280

Mathematics

2 answers:

igor_vitrenko [27]2 years ago

3 0

40 goes into 280 7 times to figure this out just simply divide 280/40

antoniya [11.8K]2 years ago

3 0

280 40 7 times come exactly because if we divide 280-40 7 and if we give the sample, ie 7x40 = 280.

$280:40 ~or~ \frac{280}{40} =7\\
7*40=280$

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Ilia_Sergeevich [38]

The correct answer for the question that is being presented above is this one: "The missing digit is 3."

The missing digit is represented by A ⇒ $1A2, where A represents a whole number from 0 to 9.

Try substituting any number from 0 to 9 for A (the middle digit or tens place) , then divide by 11 members.

Option 2: A = 3 ⇒ $1 3 2
$ 132 ÷ 11 = $12

The only one-digit that gives a whole number quotient when it takes the place of tens digit in $1 __2 is 3. Because $ 132 ÷ 11 = $ 12. (Option 2)

The missing digit is 3.

6 0

2 years ago

The length of a rectangle is 4 ya more than twice the width x. The area is 510 yd^2. Find the dimensions of the given shape

Furkat [3]

Answer:

The dimensions of the rectangle are

length = 34 yards

width = 15 yards

Step-by-step explanation:

Given:

The shape is of rectangle,

Width of rectangle = x

Area of rectangle = 510 yd²

According to the given condition

Length of rectangle = 4 + 2x

To Find:

length =?

Width = ?

Solution:

We know that,

$\textrm{Area of rectangle} = Length\times Width$

On substituting the given values we get

$510 = (4 + 2x)\times x\\510 = 4x+2x^{2}\ \textrm{using distributive property}\\\textrm{dividing throughout by two}\\255=2x+x^{2} \\\\x^{2} +2x -255 = 0\\$

Which is a quadratic equation so we will apply splitting the middle term that is factorization we get

∴ $x^{2}+ 17x -15x -255=0\\x(x+17)-15(x+17)=0\\(x-15)(x+17)=0\\\therefore x-15 =0\ or\ x+17=0\\\\\textrm{x cannot be negative i.e -17}\\\therefore x=15$