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luda_lava [24]
3 years ago
14

John is creating crafts that require 4 2/5 inches of string each. If the string comes in a 50ft spool, how many items can he mak

e?
A. 1/17
B. 136
C. 2/19
D. 25
Mathematics
1 answer:
Serggg [28]3 years ago
7 0

Answer:

Step-by-step explanation:

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How to work out 1.25 at the simplest fraction
Fed [463]
1 1/4 because the 1 would be the 1 in 1 1/4 and .25 is 1/4 so.........

1  1/4
6 0
3 years ago
Help to solve , please
stepan [7]

Answer:

A. addition property of equality; division property of equality

Step-by-step explanation:

  • 4\left(x-2\right)=6x+18    [ given ]
  • 4x - 8 = 6x +18       [ distributive property ]
  • -2x - 8 = 18             [ addition property of equality ]
  • -2x = 26                   [ addition property of equality ]
  • x = -13                    [ division property of equality ]
4 0
2 years ago
Read 2 more answers
Jessie recently drove to visit her parents who live 756 miles away. On her way there her average speed was 21 miles per hour fas
mixer [17]

Answer:

the answer is 456 miles per hour

4 0
2 years ago
Factor both quadratic expressions. (x 4 + 5x 2 - 36)(2x 2 + 9x - 5) = 0
Sonbull [250]

So focusing on x^4 + 5x^2 - 36, we will be completing the square. Firstly, what two terms have a product of -36x^4 and a sum of 5x^2? That would be 9x^2 and -4x^2. Replace 5x^2 with 9x^2 - 4x^2: x^4+9x^2-4x^2-36

Next, factor x^4 + 9x^2 and -4x^2 - 36 separately. Make sure that they have the same quantity inside of the parentheses: x^2(x^2+9)-4(x^2+9)

Now you can rewrite this as (x^2-4)(x^2+9) , however this is not completely factored. With (x^2 - 4), we are using the difference of squares, which is a^2-b^2=(a+b)(a-b) . Applying that here, we have (x+2)(x-2)(x^2+9) . x^4 + 5x^2 - 36 is completely factored.

Next, focusing now on 2x^2 + 9x - 5, we will also be completing the square. What two terms have a product of -10x^2 and a sum of 9x? That would be 10x and -x. Replace 9x with 10x - x: 2x^2+10x-x-5

Next, factor 2x^2 + 10x and -x - 5 separately. Make sure that they have the same quantity on the inside: 2x(x+5)-1(x+5)

Now you can rewrite the equation as (2x-1)(x+5) . 2x^2 + 9x - 5 is completely factored.

<h3><u>Putting it all together, your factored expression is (x+2)(x-2)(x^2+9)(2x-1)(x+5)=0</u></h3>
5 0
3 years ago
Describe a relationship in which it would be reasonable to have a negative number in the domain or
Aliun [14]

Answer:

Relationship between temperature at different times of the day during the Winter period in places like Alaska and Minnesota in the USA.

Step-by-step explanation:

An example of a relationship that would have a negative number in the domain or range would be the relationship between the temperature at different times of the day during the snow period in the winter. It's well known that in places like Alaska and Minnesota in the USA, that during the winter when there's very heavy snow, the average temperature is usually below 0°C. The temperature is the dependent variable and is most likely negative in those 2 states and thus the range would have negative numbers.

7 0
3 years ago
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