4 years ago

15 increased by a number x

1 answer:

3 0

15 increased by a number x: 15 + x
a number x more than −14: x > -14
the difference of 7 and a number x: 7/x

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Thirty decreased by three times a number is six less than

Lerok [7]

Answer:

Step-by-step explanation:

let the number be a

30-3a= -6

collect the like terms

30+6=3a

3a=36

a=12

The number is 12

8 0

3 years ago

What does 8x + 4 equal?

postnew [5]

Answer:

4 (2x+1)

Step-by-step explanation:

Factor 4 out of 8x+4

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3 years ago

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Write the quadratic equation whose roots are 4 and 5, and whose leading coefficient is 4.

Umnica [9.8K]

Answer:

Answer: 4x² - 9x + 20 

Step-by-step explanation:

• General quadratic equation:

${ \rm{ {x}^{2} - (sum \: of \: roots)x + (product \: of \: roots) }}$

• sum of roots → 4 + 5 = 9

• product of roots → 4 × 5 = 20

• substitute:

${ \boxed{ \rm{4 {x}^{2} - 9x + 20 }}}$

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3 years ago

Need help quick!! WILL GIVE BRAINLIEST

Murljashka [212]

Answer:

3 and 4 x=25, y=29

Step-by-step explanation:

If you need a step by step explanation, I will edit this later.

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4 years ago

Marcia has 412 flowers for centerpieces she uses 8 flowers for each center how many center pieces can she make

a_sh-v [17]

Answer:

5l.5

Step-by-step explanation: 412 divieded into 8 is 51 or 51.5

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3 years ago

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