PLEASE HELPPPPPP I DONT KNOW WHAT TO DO!!!!!!!!

Answer:

50 millimeters

Step-by-step explanation:

d alone , is always 1. Just like any other variable. To find the hegiht you need to do days x 10.

After 5 days its mental math.

just do 5 x 10 and do not forget to add millimeters to the end!

Answer:

18 weeks

Step-by-step explanation:

Create an equation where x is the number of weeks he works

60x - 220 will represent his profit, since he gets $60 a week but spent $220 in equipment.

Set this equal to 860, then solve for x, to find when he will earn $860

60x - 220 = 860

60x = 1080

x = 18

So, it will take him 18 weeks to earn $860

Answer:

B

Step-by-step explanation:

Answer:

no the sides are not congruent aka B

Step-by-step explanation:

Answer:

16x-21=x+9

15x=30

x=2

eu acho que e nao sei mais o outro cara respondeu ali

Step-by-step explanation:

Answer:

x = 8

Step-by-step explanation:

Given

2x + 20 = 6x - 12 ( subtract 2x from both sides )

20 = 4x - 12 ( add 12 to both sides )

32 = 4x ( divide both sides by 4 )

8 = x

=> 2x + 20 = 6x - 12

=> 20 + 12 = 6x - 2x

=> 32 = 4x

=> x =32/4

Answer:

25%

Step-by-step explanation:

90/120=0.75

1-0.75=0.25

0.25x100= 25%

Answer:

(1, 14)

Step-by-step explanation:

If you substitute the 14 in;

14 = 12x+2

-2          -2

12 = 12x

/12     /12

1 = x

Answer:

t α 1 /r ; t = k/r

Step-by-step explanation:

Given that :

Time taken, t varies inverse as rate, r

MATHEMATICALLY,

t α 1 /r

Hence,

t = k/r ;

Where, k is the proportionality constant

Hence, the situation could be expressed as :

t = k/r OR

t α 1 /r

Answer:

25. 50 percent of 50 is 25 divided by 2.

Step-by-step explanation:

step1:Our output value is .50.

step2:we represent the unknown value with x

step3: from step1 above,.50=100%

step4: similarly,x=50%

step5: This results in a pair of simple equation:

.50=100%(1)

x=50%(2)

step6:by dividing equation 1 by equation 2 and noting that both the RHS(right hand side)of both equations have the same unite(%);we have

.50. 100%

____. = ____

x. 50%

step7: again,the reciprocal of both sides gives

x. 50

___ =. ___

50. 100

°x=0.25

therefore,50%of.50 is 0.25

Answer:

9.3 simplified should be 3  if this isn't the answer then I don't know what is anymore because I just wasted my time if its wrong ;-;

Step-by-step explanation:

also I cant put the explanation sorry it says it has a link or inappropriate words in it when it doesn't.

9.3 divided by 3 is 3 so sense that isn't a fraction or anything i guess 3 is the answer in not to sure-

Answer:

8/3d +10f +-10/3

Step-by-step explanation:

Answer:

36n^4−324n^2−45n+25

Step-by-step explanation:

Answer:

25%

Step-by-step explanation:

MP= 40

SP= 50

Change(increase)  = 10

Change (increase) precentage =  10 / 40  x 100 = 25%

I hope im right!!

Answer:

25 percent

Step-by-step explanation:

£40 is the old price and £50 is the new price. In this case we have a positive change (increase) of 25 percent because the new value is greater than the old price.

Hope it helps

Please mark me as the brainliest

Thank you

Answer:

5

Step-by-step explanation:

The equation given is put in slope intercept form

y = mx + b

where m = slope and b = y intercept

the number before the x represents the slope (m) , Because 5 is the number before the x,  5 is the slope

Answer:

5

Step-by-step explanation:

Answer:

(3x-2)(2x+3)

Step-by-step explanation:

Answer:

the answer to your question should be 0.75 aka 3/4

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

As we know when factoring in complete from when it is given to us like this we erase one of the double terms, in this case is x+9 so after erased, it is

5x-7(x+9)

which basically is (5x-7)(x+9)

So that is the answer, thank you .

Answer:

(x=9)x (5x-7)

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

the graph should start at negative five not four

Answer: 4a + 4b

Step-by-step explanation: distribute the 5 and combine like terms. It would distribute to 5a + 5b -a -b which simplifies to 4a + 4b.

Answer:

4a + 4b

have a great day!!

Answer:

Step-by-step explanation:

Answer:

f=1.5⋅d or equivalent. The bag will last 140 days since 210÷1.5=140.

Step-by-step explanation:

Answer:

Rex earns $250 in interest after 2 years.

Step-by-step explanation:

Answer:

k=−0.8

Step-by-step explanation:

Start with the equation: 0.2(3k+1)=-0.4-(-0.2-0.1K)

Use distributive property on each side of the equation. For the left side, distribute 0.2 into 3k and 1, and for the right side, distribute -1 into -0.2 and -0.1k. (We use a -1 because the negative sign on the outside of the parenthesis is equivalent to -1)

(0.2)(3k) + (0.2)(1) = 0.6k + 0.2

(-1)(-0.2) + (-1)(-0.1k) = 0.2 + 0.1k

New equation: 0.6k + 0.2 = -0.4 + 0.2 + 0.1k

Now we can combine like terms on the right side. (-0.4 and 0.2)

0.6k + 0.2 = 0.1k - 0.2

Now to get rid of k on one side, we can subtract 0.1k from the right side.

(0.6k - 0.1k) + 0.2 = (0.1k - 0.1k) - 0.2

0.5k + 0.2 = -0.2

Now we need to get 0.5k by itself, so we'll subtract the 0.2 on both sides.

0.5k + (0.2 - 0.2) = (-0.2 - 0.2)

0.5k = -0.4

To get k by itself, we must divide both sides by 0.5.

(0.5k / 0.5) = (-0.4 / 0.5)

k = -0.8

Answer:

6000

Step-by-step explanation:

2000+1000=3000

9000-3000=6000

Side note: I'm not sure if this is 100% correct because you didn't give the choices

Answer:

60

Step-by-step explanation:

Answer:

Option C 20

GOOD LUCK FOR THE FUTURE! :)

Answer:

22500 people

Step-by-step explanation:

because about 90 percent of people are right handed whole only 10 percent are left handed

Answer:

30m squared carpet is needed to cover the hallway and the living room.

Step-by-step explanation:

Living room area

6 × 4.2 = 25.2

Hallway area

3.2 × 1.5 = 4.8

Total area

25.2 + 4.8 = 30m squared

Answer:

Step-by-step explanation:

Answer:

an = 24(2/3) - n

Step-by-step explanation: