Determine if the ratio is proportional. 21/14 = 18 /12

Answer:

x would equal -3

Step-by-step explanation:

want to get rid of 14 from each side so 14 - 14 would get rid of that 20 - 14 = 6 now you still have a negative 2x

-2x / -2x gives you X to be alone now divide 6 with -2 which gives you -3

The value of x is -3.

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given:

14 -2x = 20

Now, solving for x

Subtract 14 both side

14- 2x - 14= 20- 14

-2x = 6

Divide by (-2)

-2x/(-2)= 6/ (-2)

x= -3

Hence, the value of x is -3.

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Answer:

K = 1

Step-by-step explanation:

K + 2 = 3

K = 3 -2

K = 1

Answer:

K=2

Step-by-step explanation:

K+4 / 2 = 3

If you input 2 into the equation you get 3.

2+4=6

6/2 = 3

Answer:

what are the equations

Step-by-step explanation:

Answer:

s

Step-by-step explanation:

s

Answer:The other endpoint is at  ( − 4 , 3 )

Explanation:

The line segment passing through  ( − 4 , 9 )  and  ( − 4 , 6 )

is a vertical line with the midpoint  3

units below the first point.

The other endpoint must be  3

further units below the midpoint i.e. at  ( − 4 , ( 6 − 3 )

Step-by-step explanation:

Answer:

Dozen eggs = $5.5

Wheel of cheese = $6.25

Pound of potatoes = $3.1

Step-by-step explanation:

Let the cost

Dozen of egg = x

Wheel of cheese = y

Pound of potato = z

We will form linear equations using the information given in the question

Adam purchased 3 dozen eggs, 1 wheel of cheese, and 5 pounds of potatoes

3x + y + 5z = 38.25 ................(1)

Barry bought 1 dozen eggs and 10 pounds of potatoes

x + 10z = 36.50 ............(2)

Charles purchased 2 dozen eggs and 2 pounds of potatoes

2x + 2z = 17.20  .................(3)

solving 2 and 3

x = $5.5  and z = $3.1

substitute these values in equation 1

we get

y = $6.25

The cost

Dozen eggs = $5.5

Wheel of cheese = $6.25

Pound of potatoes = $3.1

The decimal number that is multiplied by 10 must be less than a two-digit number.

We move the decimal point to the left for this problem and stop where the decimal is less than a two-digit number.

So, 956.3 becomes 9.56 after moving two places to the left. Moving to the left makes the exponent of 10 positive. Moving to the right, makes the exponent of 10 negative.

We want our answer in the form

(decimal number) x 10^(n).

Answer: 9.56 x 10^2

Understand???

Answer:

3.33 is the answer

Answer:

18=10010

168=00110001 00110110 00111000

Step-by-step explanation:

18=10010

168=00110001 00110110 00111000

Answer:

Im not sure what the question is

Step-by-step explanation:

Answer:

a. y = 40x + 35

b. 35 represents the one time fee

c. The 40x represents the monthly fee

d. f(x) represents the amount you have paid after an amount of months

Step-by-step explanation:

Answer:

7:41

Step-by-step explanation:

19 1/5 as a decimal is 19.2, and the mileage would be 2.5. to find the time per mile, you divide the finish time by the number of miles you ran:

  19.2 / 2.5 = 7.68

now you're prolly wondering, "why isn't the answer 7.68?" that's a good question, and the reason that 7.68 isn't the answer is bc time is all in factions of 60, not 100 like most things, so there are 60 seconds in a minute, instead of 100 seconds in a minute.

so, you have to find out how many seconds are in 0.68 of a minute. to do this, you multiply 60 by 0.68:

  60 x 0.68 = 40.8

so 0.68 of a minute is 40.8 seconds, so your average pace was 7:40.8. i would just round up to 7:41, but your teacher may want exact numbers.

hopefully that helps and isn't too confusing! if you need any other help, let me know! :)

Answer:

49-50 cookies

Step-by-step explanation:

Hope this was helpful, Have a Wonderful Day!!

Answer:

$56.41

Step-by-step explanation:

You have to divide the total bill by the sales tax and the multiply that number by 100. Then subtract that number from the total bill and that's how you get your answer.

Answer:

5.5 miles

Step-by-step explanation:

2.35 + 3.15 =5.5

Answer:

I think they could because they are both right trigangles  and have a flat bottom

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

I think it might be $36,360.06

Step-by-step explanation:

Answer:

it would be 7 dollars per football

Step-by-step explanation:

[tex]42 \div 6[/tex]

Answer:

3+(-4)= -1

Step-by-step explanation:

Originally on 3 and goes to -4, and for addition add (-4) to positive 3 and you'll get -1

Answer:

The final balance is $7,913 and the total compound interest is $413.27

To calculate compound intrest, you need to multiply the initial principal amount ($7500) by one , plus the annual intrest rate (2.7%) raised to the number of compound periods minus one. The total initial amount of the loan is the subtracted from the resulting value.

After two years, the balance on the account will be $7916 if April invested $7500 into a continuously compounded account with an interest rate of 2.7% for 2 years.

It is defined as the interest on the principal value or deposit and the interest which is gained on the principal value in the previous year.

We can calculate the compound interest using the below formula:

[tex]\rm A = P(1+\dfrac{r}{n})^{nt}[/tex]

Where A = Final amount

          P = Principal amount

          r  = annual rate of interest

          n = how many times interest is compounded per year

          t = How long the money is deposited or borrowed (in years)

It is given that:

April invested $7500 into a continuously compounded account with an interest rate of 2.7% for 2 years.

The formula to find the money is:

[tex]\rm A = Pe^{rt}[/tex]

Here P = $7500

r = 2.7% = 0.027

t = 2 years

[tex]\rm A = 7500e^{0.027\times2}[/tex]

After solving:

A = 7916.13 ≈ 7916

Thus, after two years, the balance on the account will be $7916 if April invested $7500 into a continuously compounded account with an interest rate of 2.7% for 2 years.

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Answer:

3 inches=60 miles

Step-by-step explanation:

Multiply 0.5 times 6 because 1/2 an inch equals 10 miles. 0.5 x 6 = 3. 6 x 10 = 60. The actual distance between Aurora Springs and Glendale is 60 miles or 3 inches

Answer:

2

Step-by-step explanation:

Answer:

4/9

Step-by-step explanation:

because it is 0.44444444 repeating :)

Answer:

I think this is right. I checked with my mom, a math wiz, and she says its 11/25. But that can't be simplified, and its not an option. Try simplifying the fraction 11/25.. Hope it helps

Step-by-step explanation:

Answer:

n = 9

Step-by-step explanation:

7n + 5 = 68

7n + 5 - 5 = 68 - 5

7n = 63

7n / 7 = 63 / 7

n = 9

Answer:Price after discount: $76.80

You saved: $3.20

Step-by-step explanation:

Answer:

D. 328.62​

Step-by-step explanation:

328.618 round to the nearest hundredth

Rounding to the nearest hundredth means 2 numbers after the decimal point

Numbers that rounds to 1 are 5, 6, 7, 8, 9

Number that rounds to 0 are 0, 1, 2, 3, 4

When rounding up, to the nearest hundredth, you will consider the next number after the two figures after the decimal point

Here, the next number after the two figures after the decimal point is 8

8 is a number that rounds to 1

Therefore, add 1 to 1 to have

328.62​