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Elanso [62]
4 years ago
8

Insert parentheses to make these equalities correct 1+2·3+4·5=65

Mathematics
1 answer:
vichka [17]4 years ago
5 0

Answer:

((1+2)*3+4)*5

Step-by-step explanation:

1+2×3+4×5=65

-----------------------

  • ((1+2)×3+4)×5=
  • (3×3 + 4)×5 =
  • (9 + 4)×5 =
  • 13×5 = 65
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A nature center offers 2 guided walks.The morning walk is 2 third mile.The evening walk is 3 sixth mile.Which walk is shorter?
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Sara's grades are 78, 72, 66, 80, and 84. Sara decides to study hard for the final. Her score is 100. As an outlier, how does
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Answer:

B

Step-by-step explanation:

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Solve the following system of equations by linear combination:
s2008m [1.1K]
If you add them straight down:

2d-e = 7
d + e = 5

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To solve for e go back into one of your original equations and substitute 4 for the d.

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6 0
3 years ago
1/3 cup of flour is used to make 5 dinner rolls. how many cups of flour are needed to make 3 dozen dinner rolls
MAVERICK [17]
F = Cup of flour

D = Dinner roll(s)

12 = A dozen

36 = Three dozen

---------

1/3 * F = 5 * D

n * F = 36 * D

------

\frac { 1 }{ 3 } F=5D\\ \\ 3\cdot \frac { 1 }{ 3 } F=3\cdot 5D\\ \\ F=15D

nF=36D\\ \\ n=\frac { 36D }{ F }

This means that...

n=\frac { 36D }{ 15D } \\ \\ n=\frac { 36 }{ 15 } \\ \\ n=\frac { 3\cdot 12 }{ 3\cdot 5 } \\ \\ n=\frac { 12 }{ 5 } \\ \\ n=\frac { 10 }{ 5 } +\frac { 2 }{ 5 } \\ \\ n=2+\frac { 2 }{ 5 }

And this means that two cups of flour and 2/5 of a cup of flour are required to make 3 dozen dinner rolls.
6 0
4 years ago
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