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shepuryov [24]
3 years ago
7

4. 2 x 500 = 1000

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
8 0
Answer: B.) 9

Explanation:
28000 -> 28 and 3000 -> 3
3, 6, 9, 12, 15, 18, 21, 24, 27, 30
If we round 28 to the nearest multiple it’s 27
27 is 3x9
Mr.Ito changed his oil 9 times
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Is x=-2 a solution of the equation 1-6x=7?
ivolga24 [154]

In order to figure this out, you must solve the equation.

1-6x=7 (given)

-6x=6 (subtract 1 from both sides)

X=-1 (divide both sides by -6)

The answer is no.

5 0
3 years ago
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Which is the best estimate of 11 and one-fifth divided by 2 and three-fourths?
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Answer:

4 should be the answer to the question

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A fee of $12.50 is deducted each month from Aubryn’s bank account. She currently has a balance of $75.00 in her account. She mus
xxTIMURxx [149]
Current balance - 12 months a year times the monthly fee

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4 years ago
Ex 1) A population of 422, 000 increases by 12% each year. What is the population after<br> years.
SpyIntel [72]

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4 0
3 years ago
Without solving determine the number of real solutions for each quadratic equation
seropon [69]

Answer:

b^2-4b+3=0

b²-3x-b+3=0

b(b-3)-1(b-3)=0

(b-3)(b-1)=0

either

b=3 or b=1

.

2n^2 + 7 = -4n + 5

2n²+4n+7-5=0

2n²+4n+2=0

2(n²+2n+1)=0

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.

x - 3x^2 = 5+ 2x - x^2

0=5+ 2x - x^2-x +3x^2

0=5+x+2x²

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comparing above equation with ax²+bx +c we get

a=2

b=1

c=5

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={-1±√-39}/2

3 0
3 years ago
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