3 years ago

What is 2/5 of the product of 5/6 and 42

Mathematics

1 answer:

Hunter-Best [27]3 years ago

5 0

The answer to your equation is 14

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27^x = 9^x − 4 Question 1 options: x = 8 x = 4 x = −4 x = −8

Mariulka [41]

Answer:

x = -8

Step-by-step explanation:

Given the equation:

$27^x=9^{x-4}$

Note that

$27=3^3\\ \\9=3^2,$

then

$27^x=(3^3)^x=3^{3x}\\ \\9^{x-4}=(3^2)^{x-4}=3^{2(x-4)}$

Rewrite the equation as

$3^{3x}=3^{2(x-4)},$

then

$3x=2(x-4)\\ \\3x=2x-8\\ \\3x-2x=-8\\ \\x=-8$

4 0

3 years ago

How are the two angles below related? Drawing not to scale. Drawing is not to scale.

Phoenix [80]

we know that

Two angles are supplementary if their sum is equal to $180$ degrees

in this problem we have

$Angle\ 1=45\°$

$Angle\ 2=135\°$

$Angle\ 1+Angle\ 2=180\°$

therefore

the answer is

The two angles are supplementary

5 0

3 years ago

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Which rational number equals 0.333...? 1 over 5, 1 over 3, 3 over 10, 3 over 5

lana [24]

Answer:

1/3

Step-by-step explanation:

let x=0.333...

10x=3.333...

subtract

9x=3

x=3/9=1/3

3 0

3 years ago

A teacher puts five packages of craft paper into a cabinet each package has 80 sheets of paper what is the total number of sheet

aliina [53]

Answer:

Step-by-step explanation:

If we have 5 packages and each contains 80, we are basically doing 80+80+80+80+80 (5 TIMES) which is referred to as 80×5=400

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2 years ago

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PLZZ HELPP ILL GIVE BRAINLIST

VashaNatasha [74]

Answer:

multiply both sides by 3

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3 years ago