Combine like terms. 7k – 13k A. –6 B. –6k C. –20 D. –20k

QUESTION POSTED AT 18/01/2020 - 07:03 AM

Answered by admin AT 18/01/2020 - 07:03 AM

Answer is B. 7k-13k=-6k Which is B. So answer is -6k
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Related questions

Julian fully simplifies this polynomial and then writes it in standard form. 4x2y2 – 2y4 – 8xy3 + 9x3y + 6y4 – 2xy3 – 3x4 + x2y2 If Julian wrote the last term as –3x4, which must be the first term of his polynomial in standard form? 4y4 6y4 –2xy3 –10xy3

Trevor:  Be a sport and express exponentiation properly.  You must use the symbol       " ^ " for this purpose:

4x^2y^2 – 2y^4 – 8xy^3 + 9x3y + 6y^4 – 2xy^3 – 3x^4 + x2y^2

If Julian's last term is -3x^4, then the first term must be 6y^4.  Think about this and see whether you can detect a pattern.  The first term MUST contain "y" only and the last term MUST contain x only.

ANSWERED AT 21/02/2020 - 11:20 AM


QUESTION POSTED AT 21/02/2020 - 11:20 AM

A state requires that all boat licenses consist of the letter A or M followed by any five digits. What is the number of combinations of letters and numbers available for boat licenses? I WILL MARK BRAINLIEST TO THE BEST ANSWER.

2 choices for first letter (A or M) 
10 choices for first digit (0 to 9) 10 choices for second digit (0 to 9) 10 choices for third digit (0 to 9) 10 choices for fourth digit (0 to 9) 10 choices for fifth digit (0 to 9) 2 x 10 x 10 x 10 x 10 x 10  = 200,000 combinations

ANSWERED AT 21/02/2020 - 11:20 AM


QUESTION POSTED AT 21/02/2020 - 11:20 AM

Help please Solve for z. 5z – 8 = 32 A) z = 4 B) z = 6 C) z = 8 D) z = 4.8

5z-8=32
+8. +8
5z= 40
5/5=40/5
Z=8

ANSWERED AT 20/02/2020 - 11:22 PM


QUESTION POSTED AT 20/02/2020 - 11:22 PM

If y = kx, what is the value of k if y = 20 and x = 0.4?

Set up an equation 20=k(0.4)....to find k divide 20 by 0.4

ANSWERED AT 20/02/2020 - 11:18 PM


QUESTION POSTED AT 20/02/2020 - 11:18 PM

How much must he add to his account if he wants to have 20 weeks worth of tickets in his account?

240 / 15 = 16 weeks 

(15 * 20) - 5 = ?

295

ANSWERED AT 20/02/2020 - 11:17 PM


QUESTION POSTED AT 20/02/2020 - 11:17 PM

Find the nth term of this sequence -2 3 8 13 18

The nth term is 5n-7

ANSWERED AT 20/02/2020 - 11:14 PM


QUESTION POSTED AT 20/02/2020 - 11:14 PM

Decide whether the following rates are equivalent. 12 pages in 20 minutes or 20 pages in 32 minutes

The two fractions that we can extract from the given rates above are:
                (1) 12 pages / 20 minutes
                (2) 20 pages / 32 minutes
We can reduce the fractions or rates to their lowest term by dividing the numbers by 4 such that,
                 (1) 3 pages / 5 minutes
                 (2) 5 pages / 8 minutes
Therefore, the rates are not equivalent. 

ANSWERED AT 20/02/2020 - 11:12 PM


QUESTION POSTED AT 20/02/2020 - 11:12 PM

Corn cost 2$ for 6 ears . carmen bought 24 ears of corn. how much did she spend?

2/6=x/24
6x=48
x=8 dollars

ANSWERED AT 20/02/2020 - 11:12 PM


QUESTION POSTED AT 20/02/2020 - 11:12 PM

Charles has 24 marble. he has 6 more yellow marbles than blue marbles. what is the equation

Answer:

Required Equations are x + y = 24 & x - y = 6

Step-by-step explanation:

let x be the no of yellow marbles that Charles has.

and y be the no of blue marbles that Charles has.

Total Marbles that Charles has = 24

⇒ x + y = 24 ..............(1)

Charles has 6 more yellow marbles than blue marbles.

⇒ x = y + 6

    x - y = 6 ......................(2)

Therefore, Required Equations are x + y = 24 & x - y = 6

ANSWERED AT 20/02/2020 - 11:12 PM


QUESTION POSTED AT 20/02/2020 - 11:12 PM

What improper fraction can be written as a whole number. 10/6 12\6 14\6 16\6?

12/6 can be written as 2 because 6 can go into 12 two times.

ANSWERED AT 20/02/2020 - 11:07 PM


QUESTION POSTED AT 20/02/2020 - 11:07 PM

One bag contains 6 bags of apples if jeremy gave away five apples how many apples does he have left

You didnt say how many apples were in the bags.

ANSWERED AT 20/02/2020 - 11:03 PM


QUESTION POSTED AT 20/02/2020 - 11:03 PM

Jen and sarah go to lunch at the green grill their meals total $28 for taxes 6% what is the total cost including tax

You have to add 6% to the original price, so calculate 6% of 28$:
28 x 6/100 or 28 x 0.06
= 1.68
And add that to the original paid
1.68 + 28 = $29.68

ANSWERED AT 20/02/2020 - 11:02 PM


QUESTION POSTED AT 20/02/2020 - 11:02 PM

Fairveiw has 330 seventh grade students, and is ratio of boys to girls is 6:5. salem has 360 seventh grade students, and its ratio boys to girls is 4:5. the two towns hold a carnival, and all seventh grade students from both towns attend. how many seventh grade students at the carnival are boys?

Fiarview
6:5=11
330=11 units
divide by 11
30=1 unit
boys=6 unit
30 times 6=180 boys in fiarview




salem
4:5=9
360=9 units
divide by 9
40=1unit
boy=4 unit
40 times 4=160

add total boys
180+160=340 boys

ANSWERED AT 20/02/2020 - 10:50 PM


QUESTION POSTED AT 20/02/2020 - 10:50 PM

Write and solve a division equation to solve the problem: Sophia is buying party favors. She has a budget of $2.75 a person for 6 people. How much can Sophia spend on party favors? Thank you! :)

$2.75 ÷ 6
Sofia needs to spend $0.45 on party favors.
Hope this helps! C:

ANSWERED AT 20/02/2020 - 10:50 PM


QUESTION POSTED AT 20/02/2020 - 10:50 PM

Solve the system of linear equations without using multiplication. 7x + 8y = 20 7x - y = 29

(4,-1) is the correct answer.

Hope this helps:)

ANSWERED AT 20/02/2020 - 10:48 PM


QUESTION POSTED AT 20/02/2020 - 10:48 PM

Two sides of a triangle measure 5 in. and 12 in. Which could be the length of the third side? 3 in. 6 in. 10 in. 18 in.

Answer:

The possible answer is 10 in.

Step-by-step explanation:

Two sides of a triangle measure 5 in. and 12 in.

If three side of triangle are a, b and c then sum of two side is always greater than third side.

Sum of two side greater than third side.  

a+b>c

a+c>b

b+c>a

Difference of two side is less than third side.

a-b<c

b-c<a

a-c<b

Here, we are given two sides of a triangle 5 in and 12 in.

Possible length of third side be

12-5 < c < 12+5

7<c<17

Third side must be lie between 7 to 17.

According to option, Third side must be equal to 10 in.

Hence, The possible answer is 10 in.

ANSWERED AT 20/02/2020 - 10:45 PM


QUESTION POSTED AT 20/02/2020 - 10:45 PM

The Eiffel tower casts a shadow that is 328 feet long a 6 feet tall person standing by the tower casts a 2 foot long shadow. how tall is the Eiffel tower

If a 6 foot long person casts a 2 foot long shadow or 1/3 of height then it is 109 feet tall or 328/3=109.3333

ANSWERED AT 20/02/2020 - 10:41 PM


QUESTION POSTED AT 20/02/2020 - 10:41 PM

(-2,1) (4,-2) (6,-3) what is the rule?

-2/-2=1
4/-2=-2
6/-2=-3

The answer is divide by -2.

ANSWERED AT 20/02/2020 - 10:40 PM


QUESTION POSTED AT 20/02/2020 - 10:40 PM

What is 4 1/2 - 3 5/12 in a mixed number in lowest terms??

The answer is 1/1/12

ANSWERED AT 20/02/2020 - 10:39 PM


QUESTION POSTED AT 20/02/2020 - 10:39 PM

A square photograph has a perimeter of 20 inches. What is the area of the photograph?

Answer:

Area of square is 25 inches²

Step-by-step explanation:

Given : A square photograph has a perimeter of 20 inches.

We have to find the area of the photograph.

We know perimeter of square is 4a , where a is side of square

Given : perimeter of square = 20 inches

4a = 20

Divide both side by 4, we get,

a = 5 inches

Also, Area of square = side × side

Area of square = 5 × 5

Area of square = 25 inches²

Thus, area of square is 25 inches²

ANSWERED AT 20/02/2020 - 10:38 PM


QUESTION POSTED AT 20/02/2020 - 10:38 PM

Write a fraction, less than 1, with a denominator of 6 that is greater than 3/4

5/6
3/4 = 9/12
5/6 = 10/12
9/12 < 10/12

ANSWERED AT 20/02/2020 - 10:38 PM


QUESTION POSTED AT 20/02/2020 - 10:38 PM

An item is regularly priced at $20 . Leila bought it at a discount of 60% off the regular price. How much did Leila pay?

60% of 20 is 12 because .60×20 is 12.
Since it is 60% off, we subtract.
Subtract 12 from 20 and you'll get 8.
Leila paid $8!

ANSWERED AT 20/02/2020 - 10:37 PM


QUESTION POSTED AT 20/02/2020 - 10:37 PM

Write three different decimals that are between 10% and 20%

.12, .13, .14 there you go

ANSWERED AT 20/02/2020 - 10:32 PM


QUESTION POSTED AT 20/02/2020 - 10:32 PM

How do I solve this 4 (2x-15)+40=6 (x+5)

4 (2x-15)+40=6 (x+5)
Distribute
8x-45+40=6x+30
combine -45 and 40
8x-5=6x+30
add 5 to both sides
8x=6x+35
subtract 6x from both sides
2x=35
divide by 2 on both sides
x=17.5
hope this helps!

ANSWERED AT 20/02/2020 - 10:30 PM


QUESTION POSTED AT 20/02/2020 - 10:30 PM