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Yakvenalex [24]
3 years ago
14

D) Sum of the two adjacent angles is 140°. If the second angle is 7 less than six times the first angle, find the two angles. (2

Marks)
Mathematics
1 answer:
lara [203]3 years ago
7 0

Answer:

FIRST ANGLE = 21 degree

SECOND ANGLE = 119 degree

Step-by-step explanation:

140 = 6x - 7 + x

140 = 7x - 7

combine like terms

140 + 7 = 7x

147 = 7x

x = 21

second angle = 6(21) - 7 = 119

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What is the solution to the system of equations? (You can either do the substitution or elimination method) x - 2y = 19 x + 3y =
masha68 [24]

Answer:

D. (17,-1)

Step-by-step explanation:

We'll start by canceling out x. To do so, multiple the first equation by -1

-1( x - 2y)=( 19 )(-1)

This gives us:

-x +2y = -19

x + 3y = 14

Add the equations together:

→ 5y = -15

→ y = -1

Plug in y = -1 into an equation:

→ x + 3(-1) = 14

→ x - 3 = 14

→ x = 17

(17,-1)

Hope this helps!

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2 years ago
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klasskru [66]

Answer:

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Step-by-step explanation:

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5 0
1 year ago
A bowling alley charges $3 to rent shoes. Four friends each pay for one game and for renting
Aleksandr [31]

Answer:

3(4)+g=28

Step-by-step explanation:

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3 0
2 years ago
A box contains 75 red and 25 green light bulbs. it is found that 20 bulbs in the box are defective, of which 2 are red. what is
Afina-wow [57]

Answer:

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8 0
2 years ago
The cost of a telephone call is $0.75+$0.25 times the number of ministers . Write an algebraic expression that the models the co
Nookie1986 [14]

In the given question, it is given that, the cost of telephone call, s, is $0.75 plus $0.25 times the number of minutes .

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5 0
3 years ago
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