3 years ago

What is the coefficient in the expression 3(m*)4+5

Mathematics

1 answer:

lyudmila [28]3 years ago

4 0

The answer to this particular question is three

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A first alloy contains x pounds of 55% silver. It is mixed with a second alloy containing 30% silver to make 60 pounds of an all

Ann [662]

Answer:

"24 pounds" is the appropriate answer.

Step-by-step explanation:

According to the question, the equation will be:

⇒ $x+y=60$ ...(equation 1)

or,

⇒ $\frac{55}{100}x+\frac{30}{100}y=\frac{40}{100}\times 60$

$55x+30y=2400$ ...(equation 2)

Now,

By multiplying (equation 1) by 55 and (equation 2) by 1, we get

⇒ $55x+55y=3300$ ...(equation 3)

⇒ $55x+30y=2400$ ...(equation 4)

From equation 3 and 4, we get

⇒ $25y=900$

$y=\frac{900}{25}$

$=36$

By putting the values of "y" in equation 1, we get

⇒ $x=60-36$

$=24$

Thus the value of x be "24 pounds".

3 0

3 years ago

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Nonamiya [84]

Answer:

40$

Step-by-step explanation:

4 0

3 years ago

Solve for x using the distributive property. 9(5 - x) = 81 x = [?]

Ilya [14]

Answer:

$\boxed {x = -4}$

Step-by-step explanation:

Solve for the value of $x$ :

$9(5 - x) = 81$

-Use Distributive Property:

$9(5 - x) = 81$

$45 - 9x = 81$

-Subtract $45$ to both sides:

$45 - 45 - 9x = 81 - 45$

$-9x = 36$

-Divide both sides by:

$\frac{-9x}{-9} = \frac{36}{-9}$

$\boxed {x = -4}$

So, the value of $x$ is $-4$ .

8 0

4 years ago

Jake had soccer practice for 2 hours last month. Jake practiced 8 times more this month . How many hours did Jake practice this

Alja [10]

Answer:

16 Hours your welcome

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4 years ago

Rhe quotient of the sum of 2 and a number b, and 3

Mamont248 [21]

"The quotient of the sum of 2 and number b, and 3" can be displayed as:

(2 + b)/3

7 0

3 years ago