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Anit [1.1K]
3 years ago
5

How many different answers can you get by grouping differently? Add parentheses to the expression 7+3•4+2 to create new expressi

ons with as many different values as possible.
Mathematics
1 answer:
DiKsa [7]3 years ago
8 0

Answer: The different possible solutions are 42, 21, 31 and 80.

Explanation:

The given expression is,

7+3\cdot 4+2

Case 1.

(7+3)\cdot 4+2=10\cdot 4+2

(7+3)\cdot 4+2=40+2

(7+3)\cdot 4+2=42

Case 2.

7+(3\cdot 4)+2=7+12+2

7+(3\cdot 4)+2=21

Case 3.

7+3\cdot (4+2)=7+3\cdot 8

7+3\cdot (4+2)=7+24

7+3\cdot (4+2)=31

Case 4.

(7+3)\cdot (4+2)=10\cdot 8

(7+3)\cdot (4+2)=80

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Illusion [34]

The equations used to find the measure of each angle in degrees is x + y = 90 and x = 6y - 1

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<em><u>Solution:</u></em>

Given that two angles are complementary angles

Complementary angles are two angles whose sum is 90 degrees

Let one of the angle be "x" and the other angle be "y"

Therefore,

x + y = 90 ------ eqn 1

Also given that,

One angle is one less than six times the measure of  another

one angle = six times the other angle - 1

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Substitute eqn 2 in eqn 1

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Thus the above equation is used to find the measure of each angle in degrees

Solve the above equation

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Substitute y = 13 in eqn 2

x = 6(13) - 1

x = 78 - 1

x = 77

Thus the two complementary angles are 77 degrees and 13 degrees

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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