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Tcecarenko [31]
3 years ago
14

Which expression is equivalent to

Mathematics
1 answer:
MrMuchimi3 years ago
3 0

Answer:

8m-5

Step-by-step explanation:

7m-4+5m-1-4m

= 8m-5

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Cassie wants to mount an 18 cm x 18 cm square picture on a square board that is four times the area of the picture.
likoan [24]

9514 1404 393

Answer:

  • picture: 324 square cm
  • board: 1296 square cm
  • board dimensions: 36 cm square

Step-by-step explanation:

a) The area of the picture is the product of its dimensions:

  (18 cm)² = 324 cm²

__

b) The area of the board is 4 times that:

  board area = 4×324 cm² = 1296 cm²

__

c) The dimensions of the square board are the square root of its area:

  √1296 = √(4×324) = (√4)(√324) = 2×18 = 36 . . . . cm

The board is 36 cm square.

5 0
3 years ago
layla used 0.482 gram of salt in her experiment. maurice use 0.51 gram of salt. who used the greate amount of salt
icang [17]
Maurice used the greater amount of salt
5 0
3 years ago
Read 2 more answers
Jesse has put together 15 pieces of a 24 piece puzzle.As a fraction in simplest form, how much of the puzzle remains to be compl
guajiro [1.7K]

Answer:

5/8

Step-by-step explanation:

15 divided by 3 equal 5

24 divided by 3 equal 8

Therefore, 15/24 simplified to lowest terms is 5/8.

6 0
3 years ago
tessa burned 357 calories in 42 minutes on the elliptical. ashley only spent 0 minutes on the elliptical and burned 267 calories
svp [43]

Answer:

ashley

Step-by-step explanation:

because she didnt spend any time

6 0
3 years ago
I need help. trying to solve this.
kkurt [141]
You can use this formula
{x}^{2}  + (a + b)x + ab
a and b are the solutions to the equation

{x}^{2}  + ( -  \frac{2}{5}  +  \frac{1}{3} )x + ( -  \frac{2}{5}  \times  \frac{1}{3} ) = 0 \\  {x}^{2}    -  \frac{1}{15}x  -  \frac{2}{15}  = 0
8 0
3 years ago
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