Can someone help me (7th grade science) need to be done as soon as possible

Answer:

x = 2

Step-by-step explanation:

Given the equation as;

log 3 + log x - log(x + 1) = log 2

collect like terms

log x - log(x + 1) = log 2-1og 3

Re-write the equation by applying laws of logarithms in that when you subtract logs you divide the numbers/terms. This will give

log [ x / x+1 ] = log [2/3]

Cancel log on both sides to remain with;

x/ x+1 = 2/3

Apply cross-product

3{x} = 2{x+1}

3x = 2x + 2

3x-2x = 2

x = 2

11 quarters and 18 dimes

Hope this helps! :D

Answer:

63(P) 20

Step-by-step explanation:

The required number of coins are would only by quarters so that 12 coins shows the values of $3.

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,
dime = $0.1
quarter = $0.25

Now,
Let the number of dimes be x and number of quarter be y,
x + y = 12
x = 12 - y - - -- -(1)

According to the question,
0.1x + 0.25y = 3  -- - -(2)
y = 12

Now,
x = 0

Thus, the required number of coins are would only by quarters so that 12 coins shows the values of $3.

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Answer:

6 x 9 x 4 = 216 in

brainliest pls

Answer:

216 in^3

Step-by-step explanation:

To calculate volume of the box we multiply the given values (height × width × base)

6×9×4 = 216 in^3

Answer:

11

Step-by-step explanation:

The coordinates of the midpoint of CD is [tex](2, -1)[/tex].

"The midpoint of a segment can be considered to be the average of its endpoints."

Given end points of CD

C (-2, -4) and D (6, 2)

The coordinates of the midpoint of CD = ?

Formula to find the midpoint of CD

Midpoint of CD = [tex](\frac{x_{1}+x_{2} }{2} , \frac{y_{1}+y_{2} }{2} )[/tex]

C = ([tex]x_{1}[/tex], [tex]x_{2}[/tex]) = (-2, -4) and D = ([tex]y_{1}[/tex], [tex]y_{2}[/tex]) = (6, 2)

Midpoint of CD = [tex](\frac{-2+6}{2}, \frac{-4+2}{2} )[/tex]

= [tex](\frac{-4}{2} , \frac{-2}{2} )[/tex]

= [tex](2, -1)[/tex]

Midpoint of CD =  [tex](2, -1)[/tex]

Hence, The coordinates of the midpoint of CD is [tex](2, -1)[/tex].

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Answer:

=3x−3

Step-by-step explanation:

=(3)(x+−1)

=(3)(x)+(3)(−1)

Answer:

3x - 3

Step-by-step explanation:

distribution

Answer:

The answer is 10$

Step-by-step explanation:

The person in with 80 dollars is 30 dollars ahead but the person with 50 dollars is adding 3 dollars more a week. 30/3=10

1 thanks for me=2 thanks for you

brainliest for me= 10 thanks for you

Answer:

It's first one Thank me later ! HAHAHAHA

Step-by-step explanation:

Answer:

x=4.875

y=-0.25

Step-by-step explanation:

4x – 2y = 10

2x-y=10

y=2x-10

4x + 6y = 18

2x+3(2x-10)=9

8x=39

x=4.875

y=2(4.875)-10

y=-0.25

Answer:

m>=-5

Step-by-step explanation:

-0.5<=m/10

m>=-0.5(10)

m>=-5

Answer:

72

Step-by-step explanation:

Answer:

Step-by-step explanation:

y=-2x+3

y=(-2*-3)+3

y=6+3

y=9

Answer:

7*(1/10)=   the third one

Step-by-step explanation:

Answer:

I am here to save you!!!!

Step-by-step explanation:

It's the third one

Answer:

distance= 16×32

d= 512

got it?

Answer:

ithink it should be c

Step-by-step explanation:

Answer:

Scalene triangle

Step-by-step explanation:

This would be called a

Scalene Triangle

Answer:

Step-by-step explanation:

131.95

The volume of cylinder and cone are [tex]36\pi[/tex] cubic unit.

It is given by formula, [tex]V=\pi r^{2}h[/tex]

Where r is base radius and h is height of cylinder.

Given that,  [tex]r=3,h=4[/tex]

Substitute values in above formula,

         [tex]V=\pi*3^{2} *4=36\pi[/tex]

Volume of the cone is,

                 [tex]V=\frac{1}{3} \pi r^{2}h[/tex]

Given that, [tex]r=3,h=3*4=12[/tex]

Substitute values in above formula.

    [tex]V=\frac{1}{3}\pi*3^{2}*12=36\pi[/tex]

Learn more about the volume of cylinder here:

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Answer:  y = ¹/₂x + 2

Step-by-step explanation: This is slope-intercept form. y = mx + b

m is the slope. Rise/run

The difference in y-values is the rise. The difference in x-values is the run.

Look for places where the graphed line intersects the grid. Count the squares. Here, the graphed line rises 1 square as it runs 2 squares.

b is the y-intercept. Here, that is 2

Answer:

Hey there Marcus! LOL Anyways.. this answer would be.. It is one-half the area of a rectangle of length 4 units and width 5 units.

Answer:

wat that girl said above

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

2d+24+3d=84

2d+3d=60

5d=60

d=12

Answer:

d=12

Step-by-step explanation:

2*12=24

3+12=36

24+24+36=84

Answer:

if they are asking how much the percentage is in money here is how you do it: 20x25 divided by 100

20%-----5$

If they ask how much the baseball glove would cost after the discount, it would be

25-5

so the total would be after the discount: 20$

Step-by-step explanation:

Answer: x = 30' , y = 45'

hope this helps

Step-by-step explanation:

U is 90' it's a right triangle

well simple VRT you already know 2 angles which is 60' and 90'

R = 60'

V = 90'

T = x

you know that a triangle = 180'

so you do

180 - 60 - 90 = x

30 = x

if you want to do y

then you already know that U is 90' on both sides.

since you also know S,

S = 45'

U = 90'

V = y

180 - 90 - 45 = y

45 = y

Answer:

0.625

Step-by-step explanation:

5/6 x 3/4 = 0.625 in decimal form.

Answer:

a f e

Step-by-step explanation:

Answer:

true

Step-by-step explanation:

Answer:

what Is it? there's nothing there