Help please and thankyou :)

9d= 7.5 +10.5

9d=18

d=18/9

d=2

Pls mark as brainliest

Answer:

it depends on the amount of miles

Step-by-step explanation:

Answer:

$720

Step-by-step explanation:

I = Prt

I = (9000)(0.04)(2)

I = 720

Answer:

90 days

Step-by-step explanation:

Let the rate per day for the 30 days period be x

Given that the rate drops to 1/3 of the rate used in 30 days period, it means that the new rate

= 1/3 x

If at a rate of x, the full tank runs for 30 days

at a rate of 1/3 x, the full tank would run for

= x/ (1/3 x) * 30 days

= 3 * 30 days

= 90 days

At the new rate, the full tank of oil will last for 90 days

Answer:

2

Step-by-step explanation:

Answer:

32 x p/100 = 40

(Solve for P)

Multiply by 100 on both sides

32x = 4,000

Divide by 32 to get:

X = 125%

(reason why you multiply by 100 is because opposite of division is multiplication and we multiply the number "100" because we always multiply the denominator to both sides when having a fraction so you can solve for p or whatever. And that means p/100 x 100 it means p because since p is not a known value we consider 1/100 x 100 = 1, a variable by itself means 1 so you could just put p by itself next to the number its multiplied by which is 32 so it would be 32p because your multiplying both and the opposite of that would be dividing by 32 on both sides because you are getting rid of the 32 so therefore you will be left with: X = 125)

Answer:

The Margin of Error in percentage is 5.88%

Step-by-step explanation:

The values of the factors in the question are;

The mean increase in price per share,  = $1.95

The number of companies in the sample, n = 100

The mean increase in price per share, [tex]\overline x[/tex] = $1.82

The standard deviation of the population, σ = $0.30

The margin of error, MOE, is given by the following formula;

[tex]Margin \ of \ Error= z \times \dfrac{\sigma}{\sqrt{n} }[/tex]

Where;

z = z-score, critical value = 1.96 at 95%

σ = The standard deviation of the population = $0.30

n = The sample size = 100

Therefore, we have;

[tex]Margin \ of \ Error= 1.96 \times \dfrac{0.3}{\sqrt{100} } = 0.0588[/tex]

The Margin of Error in percentage = 0.0588 × 100 = 58.8%

The Margin of Error in percentage = 5.88%

Answer:

2x²+5x-9=0

using quadratic formula

a=2 b=5 c=-9

x=[-5±√5²-4(2)(-9)]/2(2)

x=[-5±√97]/4

the zeros are( -5±√97)/4

Answer:

√{35×35}=√35²=35 is your answer

Answer:

35 is your answer

Step-by-step explanation:

.......

Answer: x= 5

Step-by-step explanation: subtract 2x from both sides eliminating 2x.

4x-64=-44 add 64 to both sides eliminating -64

4x=20  divide by 4  

20/4 = 5

4x/4 = x

x= 5

Hope this helps :)

Answer:

356 Seventh Graders

Step-by-step explanation:

All I did was find out what number 64 was 18% of, and that gave me the answer. I took 64 and put it over 18%, and set it across from X over 100%. I did the cross multiplication, and got 355.56, but rounded it to get 356. So there are 356 total seventh graders. Hope this is helpful...have a great day! :))

Answer:

10 Ans.......

Step-by-step explanation:

Given:

=√200÷ 2

Solution:

= √200÷2

= √100

= 10 Answer......

Answer:

14

Step-by-step explanation:

Answer:

5 (x + 2y - 3)

Step-by-step explanation:

5x + 10y - 15 = 5*x + 5*2y  - 5*3

                    = 5* (x + 2y - 3)

Answer:

If a is positive, the parabola will open to the right, so the answer is C

Step-by-step explanation:

Answer: C = 9

Step-by-step explanation:

Answer:

c=10.6

Step-by-step explanation:

In this we need to find c and we know that this is a right triangle

Therefore, I can use the Pythagorean Theorem which is a^2 + b^2 = c^2.

using this we then plug in a=8 and b=7 while c is the hypotenuse.

Now the equation is now 8^2 + 7^2 = c^2. We then solve for c.

8^2 + 7^2 = c^2

64 + 49 = c^2

113 = c^2

√113 = c

c = 10.630145...

Since the questions asks to round to the nearest tenth then the answer would be 10.6

Answer:

31

Step-by-step explanation:

Answer:

9 Miles to be specific 8.95

Step-by-step explanation:

3 miles = 4.83 km

4.83 km = 4830 m

60 seconds X 45 =2700 Seconds

4830 divided by 2700 = 1.78 m/s

you want to know the distance so its speed X time

135 minutes X 60 seconds = 8100 secs

1.78 m/s X 8100 =14418 meters

14418 = 14.418 km

14.418 km = 9 miles

P.S. There is a shorter version but i think this is simpler for me and I use metric units.

Answer:

379.94

Step-by-step explanation:

11 squared is 122

Times 3.14 is 379.94

Answer:

the slope of the line is 5/2

Answer:

The ratio of the perimeter of ABCD to JKLM is;

b. 3/5

Step-by-step explanation:

Given that ABCD ~ JKLM, where;

DC and ML are corresponding sides

AD and JM are corresponding sides

AB and JK are corresponding sides

Therefore;

DC/ML = AD/JM = AB/JK

Plugging in the values of the variables gives;

9/15 = z/10 = x/12

∴ z = 10×9/15 = 6

x = 12×9/15 = 7.2

9/15 = 6/y

y = 6 ×15/9 = 10

The perimeter of the quadrilateral ABCD = AB + BC + DC + AD

∴ The perimeter of the quadrilateral ABCD = 6 + 6 + 9 + 7.2 = 28.2

The perimeter of the quadrilateral JKLM = JK + JM + ML + LK

∴ The perimeter of the quadrilateral JKLM = 12 + 10 + 15 + 10 = 47

The ratio of the perimeter of ABCD to JKLM = 28.2/47 =0.6 = 3/5.

Answer:

803.84 Cm Squared

Step-by-step explanation:

A= π r2

A = 3.14 times 16 squared

A = 803.84

Answer: 3

Step-by-step explanation:

Answer:

y=x/4

Step-by-step explanation:

add x to the other side of your equation so: 4y = x

now divide both sides by 4 so your y is isolated: y=x/4