2 years ago

Two fractions equivalent to 5/4

Mathematics

2 answers:

Eduardwww [97]2 years ago

6 0

Answer:

10/8, 20/16

Step-by-step explanation:

astraxan [27]2 years ago

5 0

Answer:

1.)10/8

2.)15/12

Step-by-step explanation:

hope this helps

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2/3 b + 5 =20 - b solve for b

Wittaler [7]

Answer:

$b = 9$

Step-by-step explanation:

$\frac{2}{3} b + 5 = 20 - b$

In order to solve for b, we must isolate the variable. We can start by subtracting 5 from both sides.

$\frac{2}{3} b + 5 - 5 = 20 - b - 5$

Simplify.

$\frac{2}{3} b = 15 - b$

Add b to both sides.

$\frac{2}{3} b + b = 15 - b + b$

Simplify.

$\frac{2}{3} b + b = 15$

Multiply everything by 3 to remove the fractions.

$3(\frac{2}{3}b+b) = 3(15)$

Simplify.

2b + 3b = 45

Simplify.

5b = 45

Divide 5 from both sides.

5b ÷ 5 = 45 ÷ 5

Simplify.

b = 9

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nexus9112 [7]

the formula is

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3 years ago

How many calcium ions are in 0.5 mol of CaCl2?

slamgirl [31]

1 Calcium ion / formula unit times 0.5 moles CaCl2 x 6.02 x 10^23 =

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Step-by-step explanation:

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3 years ago

What does a equal -5(6a+21)=-15

Anettt [7]

Step 1 remove paranthesis
(-30a-105)=-15

Step 2: Move constant to RHS (take not negative sign is removed if sides are changed and vice versa)

-30a=-15+105
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Step 3: Simplify
-a=3

Step 4: remove negative sign from variable
a=3

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2 years ago