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4 years ago

What’s the answer to all of it

Mathematics

1 answer:

GaryK [48]4 years ago

6 0

Hello there! You can structure these word problems correctly, by looking at the key words and tying them in to write the problem correctly. Number is represented by the variable "n". With that being said, if you do it right, here are the answers:

1. n - 18
2. n - 16
3. x + 12 = 21
4. x * 12 = 46
5. 6 + 12
6. 2 * 8
7. 2n + 6
8. 8/2n
9. 7 + x
10. x * 11 = 33

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Logan can read at a rate of 2/3 page per minute. At that rate, how many pages can he read in 2 hours?

Anon25 [30]

Answer:

240- 360

Step-by-step explanation:

You have to find out how many minutes in an hour which is 60. Then multiply it by 2 for 2 hours to get 120. Then you multiply 2x120 to get 240. Then you multiply 3x120 to get 360.

I'm not sure if this is correct but this is how I would go about it. :)

7 0

3 years ago

On a 3 girl basketball team Angie scored 2/5 of her teams points.Brooke scored 30%,and Callie scored the rest .What percentage o

kirza4 [7]

Answer:

30%

Step-by-step explanation:

100% - 2/5 - 30% = 100% - 40% - 30% = 30%

Callie scored 30% of her team's points.

6 0

3 years ago

Read 2 more answers

The lengths of three sides of a quadrilateral are shown below:

sasho [114]

Part A: To find the lengths of sides 1, 2, and 3, we need to add them together. We can do this by combining like terms (terms that have the same variables, or no variables).

(3y² + 2y − 6) + (3y − 7 + 4y²) + (−8 + 5y² + 4y)

We can now group them.

(3y² + 4y² + 5y²) + (2y + 3y + 4y) + (-6 - 7 - 8)

Now we simplify

12y² + 9y - 21

Part B: To find the length of the 4th side, we need to subtract the combined length of the 3 sides we know from the total length (perimeter).

(4y³ + 18y² + 16y − 26) - (12y² + 9y - 21)

Simplify, subtract like terms.

4y³ + (18y² - 12y²) + (16y - 9y) + (-26 + 21)

4y³ + 6y² + 7y - 5 is the length of the 4th side.

Part C (sorry for the bad explanation): A set of numbers is closed, or has closure, under a given operation if the result of the operation on any two numbers in the set is also in the set. For example, the set of real numbers is closed under addition, because adding any two real numbers results in another real number. Likewise, the real numbers are closed under subtraction, multiplication and division (by a nonzero real number), because performing these operations on two real numbers always yields another real number.

<em>Polynomials are closed under the same operations as integers. </em>

7 0

3 years ago

Rewrite the equation in Ax+By=C form. Use integers for A, B, and C. y=1/5x-6

LuckyWell [14K]

Answer:

C I think

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Melanie invested $2600 at the beginning of 2001 in two different stocks, Ramanar corp and bakery brothers. Ramanar corp eared 6%

Dahasolnce [82]

Answer: She invested $1100 in Ramanar corp and $1500 in bakery brothers.

Step-by-step explanation:

Let x represent the amount which she invested in Ramanar corp.

Let y represent the amount which she invested in bakery brothers.

Melanie invested $2600 at the beginning of 2001 in two different stocks, Ramanar corp and bakery brothers. This means that

x + y = 2600

The formula for determining simple interest is expressed as

I = PRT/100

Considering the investment at Ramanar corp,

P = $x

T = 1 year

R = 6℅

I = (x × 6 × 1)/100 = 0.06x

Considering the investment at bakery brothers,

P = $y

T = 1 year

R = 9℅

I = (y × 9 × 1)/100 = 0.09y

In total melanie earned $201 for the year. it means that

0.06x + 0.09y = 201 - - - - - - - - - -1

Substituting x = 2600 - y into equation 1, it becomes

0.06(2600 - y) + 0.09y = 201

156 - 0.06y + 0.09y = 201

- 0.06y + 0.09y = 201 - 156

0.03y = 45

y = 45/0.03

y = 1500

x = 2600 - y = 2600 - 1500

x = 1100

8 0

3 years ago