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const2013 [10]
3 years ago
12

Six copies of the sum of nine fifths and three ​

Mathematics
1 answer:
fgiga [73]3 years ago
5 0

Answer: What is the complete question? Can you comment it?

Step-by-step explanation: I can’t help unless I know what the full question is. Sorry.

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If M is the midpoint of segment AB and AM=9x-5 and MB=15-x, what is the length of AB?
kkurt [141]

Answer:

<h2>AB = 8x+10</h2>

Step-by-step explanation:

If M is the midpoint of the segment AB, then <em>AM+MB = AB</em>. Given the following parameters;

AM=9x-5 and MB=15-x

Required parameter

segemnt AB

Substituting the given parameters into the given formula to get AB we will have;

AB = AM+MB

AB = 9x-5+15-x

collect like terms

AB = 9x-x-5+15

AB = 8x+10

<em>Hence the length of segment AB is 8x+10</em>

6 0
3 years ago
Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.
EleoNora [17]

Answer:

The system of equation are \left \{ {{15+1x} \atop {3+5x}} \right..

In <u>3</u> weeks, the friends will each have passed <u>18</u> scales.

Step-by-step explanation:

Let number of weeks be 'x'.

Given:

Number of scale Pablo has passed = 15 scales

Number of scale Kayla has passed = 3 scales

Number of scales passing per week by Pablo = 1 scale

Number of scales passing per week by Kayla = 5 scale

We need find the number of weeks when both have same scales.

First we will find the Total number of scales Pablo will passed after 'x' weeks.

Total number of scales Pablo will passed after 'x' weeks is equal to sum of Number of scale Pablo has passed and Number of scales passing per week by Pablo multiplied by number of weeks.

framing in equation form we get;

Total number of scales Pablo will passed after 'x' weeks = 15+1x

Now we will find Total number of scales Kayla will passed after 'x' weeks.

Total number of scales Kayla will passed after 'x' weeks is equal to sum of Number of scale Kayla has passed and Number of scales passing per week by Kayla multiplied by number of weeks.

framing in equation form we get;

Total number of scales Kayla will passed after 'x' weeks = 3+5x

Hence the system of equation are \left \{ {{15+1x} \atop {3+5x}} \right..

Now we need to find the number of weeks when both have passed equal scales.

Hence we can say that;

Total number of scales Pablo will passed after 'x' weeks = Total number of scales Kayla will passed after 'x' weeks

Substituting the value we get;

15+1x=3+5x

On Solving the equation we get;

Combining like terms first;

5x-x=15-3\\\\4x=12

Now by Division property dividing both side by 4 we  get;

\frac{4x}{4}=\frac{12}{4} \\\\x=3 \ weeks

Now we will find the total scales passed by each after 3 weeks;

Total number of scales Pablo will passed after 3 weeks = 15+x=15+3 = 18 \ scales

Total number of scales Kayla will passed after 3 weeks = 3+5x=3+5\times3 = 18 \ scales

Hence: In <u>3</u> weeks, the friends will each have passed <u>18</u> scales.

4 0
3 years ago
A parent made x cupcakes for each of the 109 students in the fourth grade. Which expression could be used to determine the total
Shkiper50 [21]

Answer:

C. 109x

Step-by-step explanation:

We know that there are 109 students in the fourth grade, who each have x cupcakes. In order to find the total amount of cupcakes, we could add all of the cupcakes together to get:

x + x + x + x + .... x

109 times because there are 109 students.

This can be simplified to become 109x.  

6 0
2 years ago
Jill counted 20 pigs and chickens.
Ede4ka [16]
Raa that's hard but all I have to do is count how many chicken legs there r n then same w pigs
8 0
3 years ago
Andrew has a different cookie recipe that makes 28 cookies. He plans to have 21 guests at the party and wants each guest to have
joja [24]

Answer: Since each recipe makes 28 cookies, tripling the recipe would give him 28(3) = 84 cookies.

Step-by-step explanation: <em>Since each recipe makes 28 cookies, tripling the recipe would give him 28(3) = 84 cookies. </em>

<em> </em>

<em>Then divide the total number of cookies by the number of guests:  84  21  = 4. Each person would get 4 cookies.</em>

<em> </em>

<em>This process can be modeled by the expressions 28(3) ÷ 21 and  </em>

<em>28(3) </em>

<em>21 </em>

<em>. This is because the fraction bar represents division.</em>

5 0
3 years ago
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