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katrin2010 [14]
2 years ago
9

Simplify the expression by combining like terms. -9x + 2y - 7 + 8y + 2x + 20 Please help me

Mathematics
2 answers:
blsea [12.9K]2 years ago
4 0

Answer:

-7x+20y+13

Step-by-step explanation:

yanalaym [24]2 years ago
4 0

Answer:

-7x+10y+13

Step-by-step explanation:

want the explanation?

I guess no cause you know that we need to collect like terms. :)

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Samaria has 6 more than three times as many pieces of candy as sydney. samaria has 36 pieces of candy. how many does sydney have
lesya [120]

For this case we have:

x: Number of candies that Sydney has

The equation to find the amount of Sydney sweets is given by:

3x + 6 = 36

We want to clear x:

3x = 36-63x = 30

x = \frac{30}{3}

x = 10

So, Sydney has 10 candies

Answer:

Sydney has 10 candies


4 0
3 years ago
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Kayla says that the point labeled C in the diagram below is the center. Raymond says that point C is the radius.
frutty [35]

Answer:

Kayla is correct The center is a fixed  point in the middle of the sphere

Step-by-step explanation:

In mathematics we have certain habit of rules for notation of points, coordinates, segments, angles and so on.

Usually we denote points,  by letters even more we denote with the first letter of the object we are denoting

Occasionally, we also denote  segments as radius in a circle and in a sphere, with letters,  that is r stands for  radius, h stands for height, in most cases we denote point for capital letters ( in a segment)  

When we denote radius, with small letter it should be placed at the center or over the segment we are traying to denote.

For points we only need to place the letter close to the to the point we want to denote.

Therefore Kayla is correct when says that c stand for " the center of the sphere"

8 0
3 years ago
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For each expression, select all equivalent expressions from the list.
ratelena [41]

\qquad\qquad\huge\underline{{\sf Answer}}

Let's find the equivalent expressions ~

#1. PROBLEM

\qquad \tt \dashrightarrow \:11x - 4x + 10x

\qquad \tt \dashrightarrow \:21x - 4x

\qquad \tt \dashrightarrow \:17x

#2. PROBLEM

\qquad \tt \dashrightarrow \:2(1 + 8y)

\qquad \tt \dashrightarrow \:(2 \times 1) + (2 \times 8y)

\qquad \tt \dashrightarrow \:2 + 16y

8 0
2 years ago
What is the shape name<br>please do fast.​
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Answer:

\boxed{\sf Parallelogram}

Step-by-step explanation:

A parallelogram has opposite parallel sides and it is a quadrilateral.

7 0
3 years ago
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Charlie walked a distance of 500 meters to school. It took him 5 minutes to arrive at school from home. What is his average spee
Nikolay [14]

Answer:

100 meters per minute

Step-by-step explanation:

Find his average speed by dividing the distance he walked by the number of minutes it took him:

500/5

= 100

So, his average speed was 100 meters per minute

6 0
2 years ago
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