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Mariana [72]
3 years ago
5

Jane has 5 books.fred has 2 more books than jane.how many books do fred and jane have in all​

Mathematics
2 answers:
jolli1 [7]3 years ago
7 0

Step-by-step explanation:

5+7=12 books all together

Yuki888 [10]3 years ago
4 0

Answer:

12

Step-by-step explanation:

Jane has 5 books and if Fred has 2 more than Jane, he has 7. You then add those together to find how much they have in total

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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,

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one angle = six times the other angle - 1

x = 6y - 1 ------ eqn 2

Substitute eqn 2 in eqn 1

6y - 1 + y = 90

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

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