2) Solve the equation 9x = 7(x + 2).
A) - 7
B) -1
0 1
D) 7

Answer:

D: HE and QR

—

Answer:

6.279

Step-by-step explanation:

69% of 9.1

= 69/100 × 9.1

= 0.69 × 9.1

= 6.279

Hope it helps ⚜

Answer:

[tex]\large\boxed{\boxed{\underline{\underline{\maltese{\pink{\pmb{\sf{\: Solution :- \: 6.279}}}}}}}}[/tex]

Step-by-step explanation:

To convert % to fraction, we need to divide it by 100. So,

Now, 69% of 9.1 [tex]\downarrow[/tex]

•°•  69 % of 9.1 is 6.279.

___________

Hope it helps!

[tex]\mathfrak{Lucazz}[/tex]

Answer:

Determine 10% of 72, and multiply the result by 4

Determine 1% of 72 and multiply the result by 40

Step-by-step explanation:

took the test in k12 and it was correct.

hope this will help ;)

plz mark brainlest

The value of 40 percentage of 72 is A = 28

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, %

The difference between an exact value and an approximation to it is the approximation error in a data value. Either an absolute error or a relative error might be used to describe this error.

Percentage change is the difference between the measured value and the true value , as a percentage of the true value

Percentage change =( (| Measured Value - True Value |) / True Value ) x 100

Given data ,

Let the value of the number be represented as A

Now , the number is n = 72

Let the percentage value be p = 40 %

Now , the equation is A = np

On simplifying , we get

The value of A = ( 40/100 ) 72

The value of A = 28

Now , the 1 % of 72 = 0.72

And , 7.2 times 40 = 28

And , the 10 % of 72 is = 7.2

where 40 times 7.2 = 28

Hence , the value of 40 percentage of 72 is 28

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The range of the dataset = 47

What is the range of a dataset?

The range of a set of data is the difference between the greatest number and least number

The given data set is:

{14, 25, 61, 18, 30, 32, 28, 45, 21}

The greatest number = 61

The least number = 14

The range of the dataset = Greatest Number - Least Number

The range of the dataset = 61  -  14

The range of the dataset = 47

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Answer:

47

Step-by-step explanation:

The range is the difference between the lowest and highest number

In the data set {14, 25, 61, 18, 30, 32, 28, 45, 21}  14 is the lowest and 61 the highest so 61 - 14 = 47

Answer:

You are better off investing today in the mutual fund and earn 8.2 percent semiannually for 10 years.

Step-by-step explana

We will need to calculate the interest generated in both of these scenarios to determine which one is the best.

In scenario 1

Periods= 10 years * 2= 20 periods (since rate is biannual)

Principal= $12,000

Rate= 8.2%

Using the formula

Interest= Principal * Rate * Time

Interest= 12,000* 0.082 * 20

Interest= $19,680

In scenario 2

Principal= $11,000

Rate= 10%

Period= 8 years ( two years have already passed, so we calculate for 8 years since we want to see gain after 10 years)

Interest= 11,000* 0.10 * 8

Interest= $8,800

So imvesting $12,000 at interest rate of 8.2% biannually for 10 years is a better option.Answer:

You are better off investing today in the mutual fund and earn 8.2 percent semiannually for 10 years.

Explanation:

We will need to calculate the interest generated in both of these scenarios to determine which one is the best.

In scenario 1

Periods= 10 years * 2= 20 periods (since rate is biannual)

Principal= $12,000

Rate= 8.2%

Using the formula

Interest= Principal * Rate * Time

Interest= 12,000* 0.082 * 20

Interest= $19,680

In scenario 2

Principal= $11,000

Rate= 10%

Period= 8 years ( two years have already passed, so we calculate for 8 years since we want to see gain after 10 years)

Interest= 11,000* 0.10 * 8

Interest= $8,800

So imvesting $12,000 at interest rate of 8.2% biannually for 10 years is a better option.

Answer:

1.9375 pounds

Explanation:

1 pound = 16 ounces

1) Add 16 + 6 + 5 + 4 = x

2) This equals 31 ounces

3) The question asks for the solution to be in pounds.

4) 31 ounces = 1.9375 lbs

Answer:

  1.      

1/3 of 2 and 1/2.

(1/3) times 5/2

5/6.

5/6 of an hour is 50 minutes

 2.

1/2 of 1 1/2

1/2 of 1.5

(1/2) times 1.5 get you:

0.75

Which is 3/4 of an hour.

Answer:

First take lcm and see your answer

Answer:

distance from starting point is 40.31 km

Step-by-step explanation:

Answer:

c ≈ 40.3 km

Step-by-step explanation:

assuming the ship made a 90-degree turn from north to east what this problem represents is finding the hypotenuse of a right triangle

we can use the Pythagorean Theorem:

a² + b² = c²  where 'a' and 'b' are the legs and 'c' is the hypotenuse

20² + 35² = c²

400 + 1225 = c²

1625 = c²

[tex]\sqrt{1625}[/tex] = c

c ≈ 40.3 km

Answer:

Step-by-step explanation:

y=35-5g

She has enough to play 7 games at most

Answer:

which statement best expresses the theme of the story?

Answer:

4/100

Step-by-step explanation:

Answer:

wheres the problem?

Step-by-step explanation:i cant see it?

Answer:

[tex] \frac{8 + {6}^{2} }{11} + 7 \times 2 \\ \\ \frac{8 + 6 \times 6}{11} + 7 \times 2 \\ \\ = \frac{8 + 36}{11} + 7 \times 2 \\ \\ = \frac{44}{11} + 7 \times 2 \\ \\ = 4 + 14 \\ \\ = 18[/tex]

Answer:

18

Step-by-step explanation:

8+6^2/11 + 7 x 2

Using PEMDAS (Parenthesis -> Exponent -> Multiplication -> Division -> Addition -> Subtraction)

Solve the exponent

6^2 = 36

Solve the division problem

8 + 36 = 44

44/11 = 4

Multiply First

4 + 7 x 2

7 x 2 = 14

Then add

4 + 14 = 18

Answer:

√64/8 = √8 ≈ 2.8284

Step-by-step explanation:

75% of 140 is 105 I hope this helps!

Answer:

5 4/9 - 2 5/9= 26/9 or 2 8/9

Step-by-step explanation:

Just multiply $395 by 4. This is because $395 is the cost of one and if we're buying four, we would multiply by 4.

So,

395 x 4 = 1580

Therefore, four remote control dinosaurs will cost $1580.

Answer:

$1580

Step-by-step explanation:

395

4x

___

1580

so for 4 remotes the price is the price of one remote which is 395 multiplied by the number of remotes which is 4

Step-by-step explanation:

if I understand this correctly this is a right-angled triangle with the height 12.

x is the segment of the baseline left of the height ?

16° is the angle at the bottom right corner ?

the angle at the bottom left corner is (the sum of all angles in a triangle is always 180°)

180 - 90 - 16 = 74°

and then the height 12 is

sin(74)×upper left side

upper left side = 12/sin(74) = 12.48359323...

and now we can solve with Pythagoras for x using the left smaller triangle

upper left side² = 12² + x²

x² = upper left side² - 12² = 155.8400999... - 144 =

= 11.84009994...

x = 3.440944629...

if x is meant to be the whole baseline, then you need to do the same calculations for the right smaller triangle to get the length of the right segment. and then you need to add both numbers.

height 12 = sin(16)×upper right side

upper right side = 12/sin(16)

upper right side² = 12² + right baseline segment²

...

Answer:

does it tell u 3 sides

Step-by-step explanation:

The postulate or theorem can be used to prove that ΔABC ≅ ΔDCB by SAS Congruency rule.

If all three corresponding sides and all three corresponding angles are equal in size, two triangles are said to be congruent.

According to the Side Angle Side (SAS) postulate, two sides and the included angle of one triangle must be congruent to two sides and the included angle of another triangle for both triangles to be considered congruent.

In this case, the two sides  AC and BC and the included angle is ∠C, which are congruent with sides BD and BC and the included angle ∠B.

Thus, the postulate is SAS.

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Answer:

b

Step-by-step explanation:

ht of sugar = 12-1.75= 10.25

volume = lbh = 8.5×1.5×10.25 = option b

Answer:

use pythagoras theorem

Step-by-step explanation:

A^2+B^2=C^2

Answer:

[tex]y=1500 * 0.9475^t[/tex]

Step-by-step explanation:

Your mistake was that you multiplied by 1.0525 which would have been the case if the population of the forest increased, however they tell us that the population decreased. Therefore, the equation will be [tex]y=1500 * 0.9475^t[/tex].

Hope this helps :)

Answer:

4 2/7 - 6/7 = 24/

7

= 3 3/

7

Step-by-step explanation:

Conversion a mixed number 4 2/

7

to a improper fraction: 4 2/7 = 4 2/

7

= 4 · 7 + 2/

7

= 28 + 2/

7

= 30/

7

To find a new numerator:

a) Multiply the whole number 4 by the denominator 7. Whole number 4 equally 4 * 7/

7

= 28/

7

b) Add the answer from previous step 28 to the numerator 2. New numerator is 28 + 2 = 30

c) Write a previous answer (new numerator 30) over the denominator 7.

Four and two sevenths is thirty sevenths

Subtract: 30/

7

- 6/

7

= 30 - 6/

7

= 24/

7

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(7, 7) = 7. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 7 × 7 = 49. In the following intermediate step, it cannot further simplify the fraction result by canceling.

In other words - thirty sevenths minus six sevenths = twenty-four sevenths.

Answer:

6x²+7x-3

Step-by-step explanation:

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

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

6x²-2x+9x-3

6x²+7x-3

Basically, what we are doing is taking 2x and distributing it to the 3x and -1. Then, we distribute the 3 to the 3x and -1. Add up these two totals and you have your expanded binomial.

FOIL means First, Outer, Inner, Last, so this makes sense.

Answer:

square root of 27 = 5.19615242271  square root of 75 = 25403784  square roots simplified =  75: 8.660        27: I don't know sorry

Step-by-step explanation:

i don't know

how to s explain but those are the answer s

The value will be 4,116.

Answer:

$4116 is the value at the start of 2017.

Step-by-step explanation:

years spent: 2017 - 2014 = 3 years

if decreases, the car value will be 70% every year.

so an equation can be built to solve this:

→ ( ( 12000 ) * 70%) * 70%) * 70% .......three times * 70% as 3 years.

→ $4116

a. The volume of the cylinder is 216π cm³  

b. The volume of the cone is 72π cm³

c. The volume of the hemisphere is 144π cm³

The volume of the cylinder is 216π cm³  

Since the hemisphere fits snugly inside the cylinder, and the radius of the cylinder is 6 cm, the radius of the hemisphere equals the radius of the cylinder. Also, the height of the cylinder equals the radius of the hemisphere.

So, the volume of the cylinder V = πr²h where

So, V = πr²h

= πr² × r

= πr³

= π(6 cm)³

= 216π cm³

So, the volume of the cylinder is 216π cm³  

The volume of the cone is 72π cm³  

Since the cone fits snugly inside the same hemisphere, the radius and height of the cone equals the radius of the hemisphere.

So, the volume of the cone V' = πr²h/3 where

So, V' = πr²h/3

= πr² × r/3

= πr³/3

= π(6 cm)³/3

= 216π/3 cm³

= 72π cm³

So, the volume of the cone is 72π cm³  

The volume of the hemisphere is 144π cm³  

Since the volume of hemisphere, V" equals the averages of the volume of the cylinder, V and volume of the cone, V'

So, V" = (V + V')/2

V" = (216π cm³ + 72π cm³)/2

V" = 288π cm³/2

V" = 144π cm³  

So, the volume of the hemisphere is 144π cm³  

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