3 years ago

What is X equal to ?

Mathematics

1 answer:

yanalaym [24]3 years ago

8 0

Answer:

the two possibilities are either 35.5m orrr 65m

Step-by-step explanation:

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Lindy puts £ 78 into an account which pays inrerest at a rate of 5% per anum. What will be the simple interest after 6 years .wh

Alika [10]

Answer:

Interest: £23.4

Amount: £101.4

Step-by-step explanation:

6 × 5/100 × 78 = 23.4

Balance: 78 + 23.4 = 101.4

5 0

3 years ago

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Figures are similar. Find x.

katrin [286]

Answer:

24.3

Step-by-step explanation:

18/20 = x/20 (similar triangles)

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X + 2y = 5 x - 3y = 7 What is the value of the y-determinant? -2 -1 2

grandymaker [24]

Answer:

y-determinant = 2

Step-by-step explanation:

Given the following system of equation:

x + 2y = 5
x - 3y = 7

Let's represent it using a matrix:

$\left[\begin{array}{ccc}1&2\\1&-3\end{array}\right] = \left[\begin{array}{ccc}5\\7\end{array}\right]$

The y‐numerator determinant is formed by taking the constant terms from the system and placing them in the y‐coefficient positions and retaining the x‐coefficients. Then:

$\left[\begin{array}{ccc}1&5\\1&7\end{array}\right]$

y-determinant = (1)(7) - (5)(1) = 2.

Therefore, the y-determinant = 2

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3 years ago

Can someone please help me on number 2 please

andriy [413]

I believe the answer is 0, but I could be wrong!

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dimaraw [331]

Answer:

True I believe

Step-by-step explanation:

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