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3 years ago

If the rectangle is englarged using a scale factor of 2 what will be the perimeter and area of the new rectangle

Mathematics

1 answer:

denis-greek [22]3 years ago

5 0

Answer:

The perimeter will be enlarged by 2 and the area is enlarged by 4.

Step-by-step explanation:

The perimeter is the distance around the rectangle. If the side lengths are enlarged by 2 then the distance around the shape will be enlarged 2.

The area of a rectangle is A = L*W. If the the L and W are doubled then the

A = 2L*2W = 4L*W

So the area is enlarged by 4.

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A rectangular swimming pool is 28 feet wide. Jason drew the pool at the scale below. 1 inch : 4 feet How many inches wide is Jas

Westkost [7]

Jason’s pool is 7 inches wide because you have to multiply Length and Width so 4x7=28 so the answer is G.7 inches

6 0

3 years ago

Walmart has 260 chairs on sale. The store sells 30% of its chairs by the end of the day. How many chairs did Walmart not sell th

erastovalidia [21]

Answer:

182 chairs

Step-by-step explanation:

260 * 0.3 = 78

If Walmart sells 78 chairs today, we need to subtract 78 from 260 to find how many are left

260 - 78 = 182

There are 182 chairs left

7 0

3 years ago

Read 2 more answers

Please help! Thanks.

Karo-lina-s [1.5K]

Answer:

because it has the same angle

6 0

4 years ago

Read 2 more answers

To mix plaster for a dental model, 35 mL of water is used for 100g of plaster. How many mL of water should be used for 250g of p

laila [671]

Okay, here we have this:

Considering the provided information, we are going to calculate the requested value, so we obtain the following rule of three:

$\begin{gathered} \frac{x}{35mL\text{ of water}}=\frac{250g\text{ of plaster}}{100g\text{ of plaster}} \\ x=\frac{250g\text{ of plaster}}{100g\text{ of plaster}}\cdot35mL\text{ of water} \end{gathered}$

Solving for x:

$\begin{gathered} x=2.5\cdot35mL\text{ of water} \\ x=87.5mL\text{ of water} \end{gathered}$

Finally we obtain that 87.5mL of water should be used for 250g of plaster.

3 0

1 year ago

Please help meee and explain specifically!!

vfiekz [6]

An isosceles triangle is when 2 angles are the same measure. an triangles angle equal to 180 degrees. therefore angle A is 80 degrees as well as angle B equals 80 degrees. since the angles of a triangle equal to 180 you subtract the two known angles to find angle C. So 180-80-80 which equals to 20.

Therefore angle C=20 degrees

6 0

3 years ago