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Talja [164]
3 years ago
15

I need help on 1-8 ..

Mathematics
1 answer:
notka56 [123]3 years ago
4 0

Answer:

To begin this problem we call "the sum of the number" x. Now we have the equation 2(x)+5=20. This is the answer because it said to translate the equation. I think 2x+5+20 would be the correct translation.

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A club elects a president vice-president, and secretary-treasurer. How many sets of officers are possible if there are 9 members
qaws [65]

Answer:

D) 504

Step-by-step explanation:

Having  9 members for elect president, vice-president and secretary

Then  C₉,₃   =    9! / (  9 - 3 )!    =  9*8*7    =  504

6 0
3 years ago
What is the value of x?
vladimir2022 [97]

Answer:

y

Step-by-step explanation:

3 0
3 years ago
Ms. Lee wrote a test with 15 multiple choice short answer questions. The multiple choice questions x are worth 5 points and the
hram777 [196]

x + y = 15 and 5x + 10y = 100 are the system of equations that represent this situation

<em><u>Solution:</u></em>

Let "x" be the number of multiple choice questions

Let "y" be the number of short answer questions

Worth of 1 multiple choice questions = 5 points

Worth of 1 short answer question = 10 points

<em><u>Ms. Lee wrote a test with 15 multiple choice short answer questions</u></em>

Therefore,

number of multiple choice questions + number of short answer questions = 15

x + y = 15 -------- eqn 1

<em><u>The maximum number of points possible on the test is 100</u></em>

Therefore, we frame a equation as:

number of multiple choice questions x Worth of 1 multiple choice questions + number of short answer questions x Worth of 1 short answer question = 100

x \times 5 + y \times 10=100

5x + 10y = 100 ------- eqn 2

Thus eqn 1 and eqn 2 are the system of equations that represent this situation

6 0
3 years ago
Darnell’s team scored 40 points at the game. Darnell scored 15% of the team’s points. How many points did Darnell score?
Lina20 [59]
Answer: 6 points

Work:
15/100=0.15
40•0.15=6
7 0
2 years ago
Help pleasee I don't know how to do this
andreyandreev [35.5K]

Answer:

Just factorize the given plynomials.

Step-by-step explanation:

like in first example 7x+49

7(x+7)

3 0
2 years ago
Read 2 more answers
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