Use a table to find (3k−1)(4k+9).

Answer:

The puppy's weight increases at the rate of 1.2 ounces per week.

Answer:

x=50°

Step-by-step explanation:

52°+78°+x°=180°(by angle sum property)

130°+x°=180°

x°=180°-130°

x°=50°

Answer:

ur answer would be x=50

Step-by-step explanation:

hope this helps

right on edge 2021

Answer:

[tex] \frac{(y - 3)}{(x - 3)} = \frac{( - 6 - 3)}{( - 6 - 3)} = \frac{( - 9)}{( - 9)} = 1 \\ \frac{(y - 3)}{(x - 3)} = 1 \\ y - 3 = x - 3 \\ \boxed{y = x}[/tex]

Slope of the equation is 1 and intercept of the equation is 0.

Answer:

yes it could

Step-by-step explanation:

Answer: It's prolly 70

Step-by-step explanation:

70/10=7

Answer:

yes it is proportional

Step-by-step explanation:

Answer:

B, C

Step-by-step explanation:

Both these intervals are where the graph is increasing.

Answer:

b=3, y=6

Step-by-step explanation:

Label the 2 equations:

2b +6y= 42 -----(1)

2b +4y= 30 -----(2)

(1) -(2):

(2b +6y) -(2b +4y)= 42 -30

2b +6y -2b -4y= 12

2y= 12

y= 12 ÷2 (÷2 on both sides)

y= 6

Susbt. y=6 into (2):

2b +4(6)= 30

2b +24=30

2b= 30 -24 (-24 on both sides)

2b= 6

b= 6 ÷2

b= 3

Answer:

y = 6, b = 3

Step-by-step explanation:

Since both equations have 2b in them, subtracting them gets you a quick result because the 2b-2b cancels out!

2b + 6y = 42

2b + 4y = 30

------------------ -

       2y = 12

         y = 6

Then 2b = 42 - 36 = 6, so b = 6/2 = 3

Answer: E

Step-by-step explanation:

Answer:32

Step-by-step explanation:

you add 3 blocks each time

Answer:

f = 2

g = 8

h = -9

k = 40

m = 1

Step-by-step explanation:

Equation 1:

23f - 17 = 29

Add 17 to both sides. This undoes the -17.

23f = 29 + 17

Add 17 to 29 to get 46.

23f = 46

Divide both sides by 23. This undoes the multiplication by 23.

f = 46/23

Divide 46 by 23 to get 2.

f = 2

Equation 2:

2(3g + 4) = 56

Divide both sides by 2. This undoes the multiplication by 2.

3g + 4 = 56/2

Divide 56 by 2 to get 28.

3g + 4 = 28

Subtract 4 from both sides. This undoes the +4.

3g = 28 - 4

Subtract 4 from 28 to get 24.

3g = 24

Divide both sides by 3. This undoes the multiplication by 3.

g = 24/3

Divide 24 by 3 to get 8.

g = 8

Equation 3:

h + 9 = 0

Subtract 9 from both sides. This undoes the +9.

h = 0 - 9

Any number subtracted from 0 gives its negation.

h = -9

Equation 4

3(k - 8) = 96

Divide both sides by 3. This undoes the multiplication by 3.

k - 8 = 96/3

Divide 96 by 3 to get 32.

k - 8 = 32

Add 8 to both sides. This undoes the -8.

k = 32 + 8

Add 8 to 32 to get 40.

k = 40

Equation 5:

5m - 5 = 0

Add 5 to both sides. This undoes the -5

5m = 0 + 5

Anything plus 0 gives itself.

5m = 5

Divide both sides by 5. This undoes the multiplication by 5

m = 5/5

Anything divided by itself gives you 1.

m = 1

Answer:

The Answer is A(6+3x=30)

Step-by-step explanation:

Because there is one 6, and 3 x's then you simplify the problem to be:

6+3x=30

ANSWER: 6+3x=30 (Answer A)

Answer:

B) 3(X+6)=30

Step-by-step explanation:

The correct equation should be 6+3x=30

B is 3X+18=30

The other equations are the same

c) 3x=30-6 (the next step to solving the equation

d) 30=3x+6 (symmetric property)

Answer: Simplifying

3x + 7 = y + -5

Reorder the terms:

7 + 3x = y + -5

Reorder the terms:

7 + 3x = -5 + y

Solving

7 + 3x = -5 + y

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-7' to each side of the equation.

7 + -7 + 3x = -5 + -7 + y

Combine like terms: 7 + -7 = 0

0 + 3x = -5 + -7 + y

3x = -5 + -7 + y

Combine like terms: -5 + -7 = -12

3x = -12 + y

Divide each side by '3'.

x = -4 + 0.3333333333y

Simplifying

x = -4 + 0.3333333333y

Step-by-step explanation: Hope it helps please mark brainliest.

Answer:

nothing

Step-by-step explanation:

You get nothing because it would make -43256742984

Answer:

$420

Step-by-step explanation:

(100 - 40)x = 60x

60x - 20 = 40x

0.4x = $168

x = $168/0.4 = $420

Answer:

There is no solution for this set of equations.

The sum of two numbers can not have two different solutions.

Answer:

y = 5x - 10

Step-by-step explanation:

Answer:

y=20/4x-10

Step-by-step explanation:

(3, 5) (-1, -15)

-15-5/-1-3=20/4x

y=-10

Answer:

-10.7°C

Step-by-step explanation:

The change in the temperature is the difference between the initial  temperature and the final temperature. Let the initial temperature be T1 and the final be T2 then the change in temperature will be

= T2 - T1

Hence

-14.2 = T2 - 3.5

T2 = -14.2 + 3.5

= - 10.7°C

The temperature of the mixture after it cools is -10.7°C

Answer:

Y=-1/2+3

Step-by-step explanation:

Answer:

8m+4n

Step-by-step explanation:

4(2m+n)

you have to distribute 4 to 2m and n

so your answer will be

8m+4n

Hope this helped :))

Answer:

8m + 4n

Step-by-step explanation:

To find the answer, you should distribute the 4 on the outside of the parentheses to each of the terms inside the parentheses, which would get: 4(2m) + 4n.

Simplify 4(2m) by multiplying, which gets 8m.

The equation is then 8m + 4n, which cannot be added together because the variables are different.

Answer:

6a+8

Step-by-step explanation:

To find the perimeter of a shape add all the sides up

To do this just add everything together

this means we have

3a-7+a+14+2a+1

Add like terms and get

6a+8

Answer:

WZ = 30

Step-by-step explanation:

set up equation based on WZ = W'Z'

3/4[6x + 10] = 13x - 35

multiply each side of equation by 4 to eliminate fractions:

18x + 30 = 52x - 140

-34x = -170

x = 5

substitute 5 for 'x' in either expression:

13(5) - 35

65 - 35 = 30

Answer:

[tex] \frac{3}{4} (6x + 10) = 13x - 35 \\ [/tex]

Just find the value x

100 - 80% = 20 %

20% = $416

416 x 5 = $2080 = 100%

Answer:

1368 inches ^3

Step-by-step explanation:

Answer:

14:21

Step-by-step explanation:

Answer:

2:3

Step-by-step explanation:

Find what can be divided into 42 and 28 evenly.

28 divided by 14= 2   (Baseball cards)

42 divided by 14=3    (Football cards)

Hope I helped!! :)

Brainliest?!?!

Stay safe and have a good day/afternoon/night!!!

Answer:

8 cupcakes

Step-by-step explanation:

It eats 4 every 14. 14x2=28 so two sets of four.

Answer:

The music director could make 15 groups of performers with 6 6th grade students and 5 7th grade students in each group.

Step-by-step explanation:

Since in the question it is mentioned that

There is 90 6th grade students and 75 7th grade students

Now factor could be done in the following ways

90 = 2 × 45 = 2 × 3 × 15 = 2 × 3 × 3 × 5

75 = 3 × 25 = 3 × 5 × 5

Now the GCF of 90 and 75 is

= 3 × 5

= 15

So,

90 = 15 × 6

75 = 15 × 5

Hence, The music director could make 15 groups of performers with 6 6th grade students and 5 7th grade students in each group.

Answer:

y =  60

Step-by-step explanation:

From the  information we get:

x  quantity of 4 dollars  coffee used in the mix

y  quantity of 7 dollars  coffee used in the mix

For the quantity of coffee to be sold a 7 $/pound  ( 90 pounds)

Then  6*90  =  540  $

Therefore

x  +  y  =  90     and

4*x  +  7*y  =  540

A two equations system we solve for x and y

y =  90  -  x

4*x  +  7* ( 90  -  x ) = 540

4*x  +  630 - 7*x  =  540

- 3*x  =  - 90

x = 30 pounds   and

y  =  90  -  30

y  =  60

We should use  60 pounds of the seven $ coffee

Answer:

x=54

Step-by-step explanation:

Answer:

1/250

Step-by-step explanation:

5^-3 × 2^-1

5^-3 = 1/5^3 = 1/125

2^-1 = 1/2^1 = 1/2

so 5^-3 × 2^-1 means 1/125 × 1/2

= 1/125 × 1/2

= 1/250