3 years ago

What is the relationship a - b and b - a

Mathematics

1 answer:

Ber [7]3 years ago

8 0

Step-by-step explanation:

if a>b u get a (+) value for (a - b)

if b>a u get a (-)value for (a - b)

if a>b u get a (-) value for (b - a)

if b>a u get a (+) value for (b - a)

eg .5 - 4 / 4 - 5

1 / -1

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Raymond’s gas tank is 1/3 full. After he buys 11 gallons of gas, it is 5/6 full. How many gallons can Raymond’s tank hold?

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2 years ago

1 + 4 = 5<br>2 + 5 = 12<br>3 + 6 = 21<br>8 + 11 = ?

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3 years ago

Express the following expression in partial fractions 9x -7/2x-3x +1

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3 years ago

3a + 5b = 26 ; a + 5b = 22

Solnce55 [7]

Answer:

$\boxed{a=2,\:b=4}$

Step-by-step explanation:

$\begin{bmatrix}3a+5b=26\\ a+5b=22\end{bmatrix}$

Isolate a from 3a + 5b = 26,

$a=\cfrac{26-5b}{3}$

$\begin{bmatrix}\cfrac{26-5b}{3}+5b=22\end{bmatrix}$

$\begin{bmatrix}\cfrac{26+10b}{3}=22\end{bmatrix}$

Now, Isolate b for

$\cfrac{26+10b}{3}=22\:\:\boxed{b=4}$

Now, Substitute b=4

$a=\cfrac{26-5\times \:4}{3}$

$\cfrac{26-5\times \:4}{3}\:\:\boxed{a=2}$

$\boxed{a=2,\:b=4}$

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3 years ago