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3 years ago

4(5x – 6y) + 16x I don’t know how do this problem

Mathematics

1 answer:

Ivenika [448]3 years ago

7 0

Answer:

simplify =36x−24y

factor =12(3x−2y)

Step-by-step explanation:

Let's simplify step-by-step.

4(5x−6y)+16x

Factor 4(5x−6y)+16x

36x−24y

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A recycling plant recycled 4.9 kg of paper and cardboard the first hour and 7.8 kg/h

Daniel [21]

Answer: R = {0kg, 59.5kg}

Step-by-step explanation:

When we have a function f(x) = y.

The set of the possible values of x is called the domain of the function, and the set of the possible values of y is called the range of the function,

In this case, we have that:

the plant recycled 4.9kg the first hour, and 7.8 kg per hour after.

So this function can be written as piecewise function, with one part for the first hour, and another part for the time after the first hour.

F(x) = 4.9kg*x if 0h < x ≤ 1h

F(x) = 4.9kg + 7.8kg/h*(x -1) if x ≥ 1h

We use (x - 1) for the second part because if x = 1 h, we must have the same result in both parts of the function.

Where x is the number of hours.

And we know that the domain is (0hours, 8 hours)

Then the minimum value of y will be:

F(0h) = 4.9kg*0h = 0kg.

And the maximum value in the range will be:

F(8h) = 4.9kg + 7.8kg*7 = 59.5kg

Then the range is:

R = {0kg, 59.5kg}

7 0

3 years ago

Mrs. Morton has a special reward system for her class. When all her students behave well, she rewards them by putting 3 marbles

Olin [163]

Answer: $24+3r\geq100$

r=26

Step-by-step explanation:

Given: Mrs. Morton rewards her students on behave well by putting 3 marbles into a marble jar.

If the jar contains 24 marbles. and r represent the number of additional times the class is rewarded then the required equation will be

$24+3r\geq100$

If we solve it, we will get the minimum the jar contains 24 marbles.

To solve equation, subtract 24 from both sides, we get

$3r\geq100-24\\\Rightarrow3r\geq76\\\Rightarrow\ r\geq\frac{76}{3}\geq25.333\approx 26$

Hence, the minimum whole number of additional times they need to be rewarded so they can have a party=26

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4 years ago

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Y equals twenty nine over five x

mote1985 [20]

Answer:

y=29/4x

Step-by-step explanation:

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3 years ago

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Which expression is equivalent to 5^10 x 5^5? a.5^2 b.5^5 c.5^15 d.5^50

Elena L [17]

I would like to say D I believe

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4 years ago

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Find the missing number. a. 3 : 24 = ___ : 72 b. ___ : 18 = 5 : 9 c. 6: ___ = 36 : 36

sweet [91]

A 9

B 10

C 6

Hope this helps;$

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4 years ago

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