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1 year ago

Simplify: (−12az2−2z3)+(−2a3+7a2z)−(−4a2z+8az2)

Mathematics

1 answer:

Setler [38]1 year ago

3 0

Answer:

$\large{ \boxed{ \tt{ - 20a {z}^{2} - 2 {z}^{3} - 2 {a}^{3} + 11 {a}^{2} z }}}$

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Kevin is 4 times as old as Daniel and is also 6 years older than Daniel

MAXImum [283]

Answer:

Part a) Daniel's age is 2 years

Part b) Kevin's age is 8 years

Step-by-step explanation:

The question is

Part a) How old is Daniel?

Part b) How old is Kevin?

Let

x ----> Kevin's age

y ----> Daniel's age

we know that

$x=4y$ -----> equation A

$x=y+6$ ----> equation B

Equate equation A and equation B

$4y=y+6$

solve for y

$4y-y=6$

$3y=6$

$y=2$

therefore

Daniel's age is 2 years

Find the value of x

substitute the value of y in any of the two equations

$x=4(2)=8\ years$

$x=2+6=8\ years$

therefore

Kevin's age is 8 years

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3 years ago

Y = x + 2y = -2x + 2y = -3x + 2y = -5x + 2y = -

djverab [1.8K]

Answer:

152

Step-by-step explanation:

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6 0

3 years ago

How to solve this task 4×-2+1=3×+5

just olya [345]

4x-2+1=3x+5

Subtract 3x from both sides

x-2+1=5

Same as

x-1=5

Add 1 to both sides

x=6

8 0

3 years ago

Sam counted out loud by 6s . Jorge counted out loud by 8s. What are the first three numbers both Sam and Jorge said

IrinaK [193]

Sam:6,12,18 Jorge:8,16,24

4 0

3 years ago

Read 2 more answers

Please Answer This Math Question? Here it is:; There was a typo thank you for saying that its Mrs. Gorski bought a table and 6 c

SCORPION-xisa [38]

So you'd do 980 - 524 = $456, and then 456 ÷ 6 = $76, which is the cost of 1 chair. We already know that 1 table is $524, so if you want 2 tables and 8 chairs you'd do (524 × 2) + (76 × 8), which is 1048 + 608 = $1656, which is your answer. I hope this helps!

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3 years ago