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3 years ago

A 5 inch x 7 inch photograph is placed inside a picture frame. Both the length and width of the frame are 2x inches

Mathematics

1 answer:

Sedbober [7]3 years ago

5 0

Answer:

Perimeter = 28 + 8x inches

Step-by-step explanation:

Length of the photograph = 7 inches

Width of the photograph = 5 inches

Both the length and width of the frame are 2x inches larger than the width and length of the photograph.

Length of the frame = 7 inches + 2x inches

Width of the frame = 5 inches + 2x inches

Perimeter of the frame = 2(Length + width)

= 2{(7+2x) + (5+2x)}

= 14 + 4x + 10 + 4x

= 28 + 8x inches

Perimeter = 28 + 8x inches

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Use the net to find the surface area of the square pyramid

SpyIntel [72]

Answer:

473

Step-by-step explanation:

The square surface area is 121 (11x11)

For the triangles, you do 16x11, which equals 176 and then divide by 2, to get 88. Since there are 4 triangles, I did 88x4 and got 352 and then added 121 to get 473

4 0

3 years ago

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Mrs. Summers polled the students in her 7th and 8th grade classes to determine the number of pets each student has at home. The

Burka [1]

Answer:

There are 32 kids in Mrs. Summers's class. The percentage is 5.30% of kids have one pet. 6 kids have one pet in Mrs. Summer's class.

I hope this helps :)

Step-by-step explanation: There are 32 students in the 7th grade/Number of pets

Step-by-step explanation:

Just count all of the x's

8 0

3 years ago

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Can someone tell me how this is wrong

Ilia_Sergeevich [38]

Answer:

y = 17

Step-by-step explanation:

We have five values : 2 , 5 , 7 , y , 9

and the mean = 8

this means :

$\frac{2+5+7+y+9}{5} =8\\\\then\\\\23+y = 8*5\\\\then\\\\y = 40 - 23\\\\then\\\\y=17$

Verification: (2+5+7+17+9)÷5 = 8

6 0

3 years ago

Patrick has assets that total $9,500. his liabilities total $1,900. which expression will find patrick’s net worth? 9,500 dollar

Aleksandr-060686 [28]

An expression has numbers, variables, and mathematical operations. Patrick's net worth is represented by the expression $9,500-$1,900.

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

As it is given that the value of the assets with Patrick is $9,500, while the liabilities are $1,900. Thus, his net worth will be the difference between his assets and his liabilities.

Thus, Patrick's net worth of Patrick can be written as,

$\rm Net\ worth = Assets-Liabilities$

$= \$9,500-\$1,900$

Thus, Patrick's net worth is represented by the expression $9,500-$1,900.

Learn more about Expression:

brainly.com/question/13947055

8 0

2 years ago

How to solve 0.5(5-7x)=8-(4x+6)

Yuri [45]

$\frac { 1 }{ 2 } \left( 5-7x \right) =8-\left( 4x+6 \right) \\ \\ \frac { 1 }{ 2 } \left( 5-7x \right) =8-4x-6$

$\\ \\ \frac { 1 }{ 2 } \left( 5-7x \right) =2-4x\\ \\ \frac { 1 }{ 2 } \left( 5-7x \right) =2\left( 1-2x \right) \\ \\ 2\cdot \frac { 1 }{ 2 } \left( 5-7x \right) =2\cdot 2\left( 1-2x \right)$

$\\ \\ 5-7x=4\left( 1-2x \right) \\ \\ 5-7x=4-8x\\ \\ -7x+8x=4-5\\ \\ x=-1$

3 0

3 years ago