Write a subtraction problem with mixed numbers in which the difference is 2 over 7. Calculate difference to check your answer

Answers

Answer 1

Answer: $3 (5)/(7) -3 (3)/(7) = (2)/(7)$

Check:

$3 (5)/(7) = (26)/(7)$

$3 (3)/(7) = (24)/(7)$

$(26)/(7) - (24)/(7) = (2)/(7)$

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Which polynomial has (3x + 2) as a binomial factor? 6x3 + 3x2 + 4x + 2 12x2 + 15x + 8x + 10 18x3 – 12x2 + 9x – 6 21x4 + 7x3 + 6x + 2

Answers

If binomial (3x+2) is a factor of some polynomial, then number $x=-(2)/(3)$ is this polynomial's root. Check all polynomials:

A. For the polynomial $6x^3 + 3x^2 + 4x + 2,$

$6\left(-(2)/(3)\right)^3 + 3\left(-(2)/(3)\right)^2 + 4\left(-(2)/(3)\right) + 2=-(16)/(9)+(4)/(3)-(8)/(3)+2=-(10)/(9)\neq 0.$

B. For the polynomial $12x^2 + 15x + 8x + 10,$

$12\left(-(2)/(3)\right)^2 + 23\left(-(2)/(3)\right) + 10=(16)/(3)-(46)/(3)+10=0.$

C. For the polynomial $18x^3-12x^2 + 9x-6,$

$18\left(-(2)/(3)\right)^3 -12\left(-(2)/(3)\right)^2 + 9\left(-(2)/(3)\right) -6=-(16)/(3)-(16)/(3)-6-6\neq 0.$

D. For the polynomial $21x^4 + 7x^3 + 6x + 2,$

$21\left(-(2)/(3)\right)^4 +7\left(-(2)/(3)\right)^3 +6\left(-(2)/(3)\right) +2=(112)/(27)-(56)/(27)-4+2\neq 0.$

Answer: correct choice is B

Answer:

B 12x2 + 15x + 8x + 10

Step-by-step explanation:

Did it

The larger of two integers is 6+2 x

Answers

2x is bigger because x can equal anything

It depends on what x is equal to
So there's not really a definite answer

Cierra has 3 more than one half as many purses as Aisha. Define a variable and write an expression to represent the number of purses in Cierra's collection. Then find the number of purses in Cierra's collection if Aisha has 12 purses.

Answers

1/2x + 3 1/2(12) + 3 6+3=9 X= number of purses

Answer: 9 purses

Step-by-step explanation:

Let X be the unknown number. Technically X is 12 because it says in the problem. X1/2+3= 12×1/2= 6+3= 9. So, 9 purses

What distance was used to define the astronomical unit (AU)

Answers

approximately 93 million miles Definition of astronomical unit. For general reference, we can say that one astronomical unit (AU) represents the mean distance between the Earth and our sun. An AU is approximately 93 million miles (150 million km). It's approximately 8 light-minutes.

What goes into 49 and 50 evenly

Answers

nothing, goes into 49 and 50.

7x7=49 and 5x10=50 to let you know

linda wants to but a cell phone. she has looked at two phones. phone a normally cost $175, but she can a 5% discount. phone b normally cost $200, but she can get a 20% discount. Part a how much is the discount for each phone part b what is the price of each phone after the discount part c which discounted phone cost less? linda will have to pay 6% sales tax on whichever phone she buys. does this change which phone cost less?

Answers

Part A:
Phone A has a $8.75 discount
$175*0.05=$8.75

Phone B has a $40.00 discount
$200*0.20=$40

Part B:

Phone A is $166.25
$175-$8.75=$166.25

Phone B is $160.00
$200-$40=$160

Part C:
Phone B costs less after the discount

Part D:
No, sales tax is applied to the discounted/final price, so both prices will increase by 6%. Phone B will still be cheaper.

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In an election, 11 of 20 voters preferred Ms. Williamson to Ms. Stallings. A total of 3300 people voted in the election.How many voters preferred Ms. Williamson to Ms. Stallings? A. 1815 B. 3291 C. 4185 D. 6000

Simplify:

an elevator starts at the 6th floor. it goes up 7 floors twice then it goes down 10 floors. A second elevator starts on the 20th floor. It goes down 5 floors 3 times, and then it goes up 12 floors. Which elevator ends on a higher floor?