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3 years ago

Sarah had a sheet of paper that was 3 inches long and 7 inches wide. What is the perimeter of the paper

Mathematics

2 answers:

notsponge [240]3 years ago

4 0

Answer:

20 square inches

Step-by-step explanation:

Illusion [34]3 years ago

3 0

Answer: 20

Step-by-step explanation:

(3+7)*2 = 20

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X and y are both bigger than 30. x and y have HCF 21 and LCM 1617. Find x and y.

Sunny_sXe [5.5K]

The values of x and y are 99 and 343

The HCF of numbers is the highest common factors of the numbers

The LCM of numbers is the lowest common multiple of the numbers

The HCF and the LCM are given as:

$HCF = 21$

$LCM = 1617$

Multiply the HCF and the LCM

$HCF \times LCM = 21 \times 1617$

$HCF \times LCM = 33957$

The product of the numbers x and y equals the product of the HCF and the LCM.

So, we have:

$x \times y = 33957$

<h3>Prime Factors</h3>

Express 33957 as a prime factor

$x \times y = 3^2 \times 7^3 \times 11$

Rewrite the equation as

$x \times y = 99 \times 7^3$

$x \times y = 99 \times 343$

By comparison:

$x = 99$

$y= 343$

Hence, the values of x and y are 99 and 343

Read more about HCF and LCM at:

brainly.com/question/420337

6 0

2 years ago

The 7th grade class is putting on a

Brut [27]

1495-400=1095
1095=15x
x=73
X: number of seats

4 0

3 years ago

Read 2 more answers

7. The sweater cost $35, and the tax rate was 8%. How much do you have to pay in tax?

RUDIKE [14]

Answer:

so in tax you pay a extra $2.80 so the total price of the sweater is $37.80.

Mikey will save $37.25

3 0

3 years ago

The legs of a right triangle measure 24ft and 25ft what is the length of the hypotenuse

Tom [10]

It is 34.65
I squared 24 and 25 which equals 1201
Then, I took the square root of 1201 and I got 34.65

8 0

3 years ago

Savannah and Sarah are planning on riding their bikes to a point located at 1100 ft from their house their bicycle tires have a

Molodets [167]

Answer:

323.2 revolutions (324 revolutions (rounded) )

Step-by-step explanation:

Savannah has to cover 1100 feet

Sarah has to cover 1100 feet

Now,

For Savannah:

diameter is 26 in, so radius will be 26/2 = 13 inches

Circumference (1 rev) = $2 \pi r = 2 \pi (13) = 81.68$

There are 12 inches in 1 feet, so distance to be covered in inches:

1100 * 12 = 13,200 inches

Number of revolutions = 13,200/81.68 = <u>161.6 revolutions</u>

For Sarah, it is the same so:

161.6 revolutions

Together:

161.6 + 161.6 = 323.2 revolutions to cover the whole distance (both)

Rounded, it is About 324 revolutions

5 0

3 years ago