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2 years ago

Its algebra just forgot how to do the work please do the work 50 points

Mathematics

1 answer:

Ira Lisetskai [31]2 years ago

5 0

Answer:

Step-by-step explanation:

f(2) = 6 (what multiplies 2 to equal 6?)*2 = 6

It seems like x gets multiplied by three. Let's check the next one:

f(-1) = -3

Ah ha! We were right. Let's check one more time:

2 * 3 = 6

-1 * 3 = -3

f(x) just means what is f when x is any number. This function that we covered above is: f(x) = 3x

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When you divide a number by a decimal less than 1, is the quotient less than or greater than the original number?

mote1985 [20]

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Step-by-step explanation:

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3 years ago

Type the correct answer in each box. If necessary, use / for the fraction bar(s).

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Answer:

12x + 15y=34

x=34/12 = 17/6

y=34/15

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3 years ago

5x + 4y = 11<br> 2x + 6y = -7

olga55 [171]

$\left\{\begin{array}{ccc}5x+4y=11&|\cdot2\\2x+6y=-7&|\cdot(-5)\end{array}\right\\\underline{+\left\{\begin{array}{ccc}10x+8y=22\\-10x-30y=35\end{array}\right}\ \ \ \ |add\ both\ sides\ of\ the\ equations\\.\ \ \ \ \ \ \ \ \ \ \ -22y=57\ \ \ \ |:(-22)\\.\ \ \ \ \ \ \ \ \ \ \ y=-\dfrac{57}{22}\\\\substitute\ the\ value\ of\ y\ to\ the\ first\ equation\\\\5x+4\left(-\dfrac{57}{22}\right)=11\\\\5x-2\cdot\dfrac{57}{11}=11\ \ \ \ |\cdot11\\\\55x-114=121\ \ \ \ |+114\\\\55x=135\ \ \ \ |:55$

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8 0

3 years ago

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3 years ago

-4(4y-10)+3(2y+8) simplify the expression

vagabundo [1.1K]

Step by step solution :

Step 1 :

Step 2 :

Pulling out like terms :

2.1 Pull out like factors :

2y + 8 = 2 • (y + 4)

Equation at the end of step 2 :

(0 - (4 • (4y - 10))) + 6 • (y + 4)

Step 3 :

Step 4 :

Pulling out like terms :

4.1 Pull out like factors :

4y - 10 = 2 • (2y - 5)

Equation at the end of step 4 :

(0 - 8 • (2y - 5)) + 6 • (y + 4)

Step 5 :

Step 6 :

Pulling out like terms :

6.1 Pull out like factors :

64 - 10y = -2 • (5y - 32)

Final result :

-2 • (5y - 32)

7 0

3 years ago