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Sladkaya [172]
3 years ago
10

Solve the system of equations and choose the correct ordered pair.

Mathematics
2 answers:
KiRa [710]3 years ago
8 0
<span>4x + 3y = 16
7x + 6y = 31

Note what happens if we mult. the first eqn. by -2:  

-8x - 6y = -32

Combining this with the 2nd equation eliminates the variable y:

</span>-8x - 6y = -32<span>
7x + 6y = 31
--------------------
-x          = -1, or x = 1.  Sub 1 for x in either of the 2 given eqns to find y:

For example:  4(1) + 3y = 16, so 36 = 12, and y = 3.  Sol'n is (1,3).</span>
MrRa [10]3 years ago
5 0

Answer:

1,4

Step-by-step explanation:

The correct answer is (1,4)

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suppose we want to choose 5 letters, without replacement, from 13 distinct letters. (a) how many ways can this be done, if the o
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<h3>What is meant by permutation and combination?</h3>

Combination and permutation are two alternative strategies in mathematics to divide up a collection of components into subsets. The subset's components can be listed in any order when combined. The components of the subset are listed in a permutation in a certain order.

A. We want to select 5 objects from a total 13, without considering the order in which they are chosen.

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3 0
1 year ago
A building across the street casts a shadow that is 24 feet long your friend is 6 feet tall and casts a shadow that is 4 feet lo
matrenka [14]

6/4=b/24

1.5=b/24

24(1.5)=b

36=b

Building is 36 ft tall

8 0
3 years ago
Read 2 more answers
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