My mother is 12 years more than twice my age.after 8 years she will be 20 years less than three times my age...find my age and my mothers age i have this equation:
2x+12+8=3x-20
2x+12-12+8-8=3x-20-20
2x+3x=-40
5x/5=-40/5
x=-8
NEED HELP PLS :(

Answers

Answer 1

Answer: You are correct for the first part, you would be 16 and your Mom would be 44. After 8 years, you would be 24 and your mother would be 52. You solve the second part by adding 8 to 16 which equals 24. Then multiply 24 times 3 which equals 72. Lastly, subtract 20 from 72 to find your mother's new age. Which would be 52.

Hope this helps !

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Lucy has a hemisphere shaped goldfish pond in her backyard. The pond has a circumference of 11.9 feet . The pond has a population density of 3.6 cubic feet of water for each goldfish. How many goldfish are in Lucy's pond ?

Answers

40.38 my answer is 40.38 or 40 goldfish

Around 40.38 - 40 goldfish is your answer.

Use synthetic division to solve (x^4 – 1) ÷ (x – 1). What is the quotient?

Answers

Answer: $x^3+x^2+x+1$

Step-by-step explanation:

Here, the dividend is $x^4+0x^3+0x^2+0x-1$

While divisor is x - 1

In the synthetic division,

We will follow the following steps,

Step 1) Write the coefficient of the dividend in the decreasing order of degree,

Hence, the element in the first row under the division sign are 1, 0, 0, 0, - 1

Step 2) By putting x - 1= 0, we get x = 1

Hence, write down 1 outside the sign,

Here the problem is set up correctly, So, bring the leading coefficient (first number) straight down.

Step 3) Multiply the number in the division box with the number that we brought down and put the result in the next column. Then, Add the two numbers together and write the result in the bottom of the row.

Step 4) Repeat the third step until you get the last element ( here the last element is 0,

Thus, We get numbers in the third row, 1, 1, 1, 1 ( Except 0 )

⇒ Quotient is $x^3 + x^2 + x + 1$

Answer:

Step-by-step explanation:

One recipe calls for 3/4 cup of milk. A different recipe calls for 1/2 as much milk as the first recipe. How much milk does the second recipe call for?

Answers

For this problem you need to divide 3/4 by 2. For division of fractions, invert and multiply.

2/1 = 1/2

3/4 • 1/2

3 • 1 = 3
4 • 2 = 8

1/2 of 3/4 cup of milk = 3/8 of a cup of milk.

Answer:

3/8

Step-by-step explanation:

Write as a single exponent. 1. ( 1/10 x 1/10 x 1/10 x 1/10 )^2
2. ( 1/10 x 1/10 x 1/10 )^3
3. ( 10 x 10 x 10 )^-2

Answers

Step-by-step explanation:

1. (1/10 × 1/10 × 1/10 × 1/10)^2

(10^-4)^2

10^-8

2. (1/10 × 1/10 × 1/10)^3

(10^-3)^3

10^-6

3. (10 × 10 × 10)^-2

(10^3)^-2

10^-6

Question

Write as a single exponent.

1. ( 1/10 x 1/10 x 1/10 x 1/10 )^2

2. ( 1/10 x 1/10 x 1/10 )^3

3. ( 10 x 10 x 10 )^-2

Add −3 1/6+53/4 I need help

Answers

Answer: 8 11/12

Step-by-step explanation:

3 1/6+ 5 3/4

19/6+ 23/4

38/12+69/12

107/12

8 11/12

To solve this problem, you must understand what is the Common Denominator Rule:

The Common Denominator rule is when you use the common factors of the denominators to make them the same number. This will allow you to add and subtract fractions.

First, let’s put these two mixed fractions as improper fractions. Learn more about making that conversion here: brainly.com/question/35061276

$(23)/(4)$

$(-19)/(6)$

Now that you have your fractions, look at the denominators: 6 and 4.

A common factor between 4 and 6 is the number 12. Multiply the denominators and numerators of each fraction by the number that will turn the denominator into 12:

$((23)(3))/((4)(3))$ = $(69)/(12)$