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3 years ago

Answeerrrrr asapppooaoaoaoao please need helppppp

Mathematics

2 answers:

AlekseyPX3 years ago

5 0

Answer:

1a. Yes

1b. No

1c. Yes

Step-by-step explanation:

balandron [24]3 years ago

5 0

Answer:

1a. 2/5 x 25 = 50/5 = 10 and 10 = 10 so yes

1b. 5 + 5 = 10 10 does not equal 15 so no

1c. 5 x 5 = 25 and 25 = 25 so yes

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A student scored 75 and 97 on her first two quizzes. Write and solve a compound inequality to find the possible values for a thi

Rainbow [258]

Answer:

$85 \le \frac{75 + 97 + n}{3} \le 90$ ; $83 \le n \le 98$

Step-by-step explanation:

Score of the first two quizzes: 75 and 97

Let n represent the third score

Average score would be: $\frac{75 + 97 + n}{3}$ .

Given that the average score fall between 85 and 90, this can be represented by the compound inequality as shown below:

$85 \le \frac{75 + 97 + n}{3} \le 90$

Solve for n in each statement that makes up the compound inequality:

$85 \le \frac{75 + 97 + n}{3}$

$85 \le \frac{172 + n}{3}$

Multiply both sides by 3

$85*3 \le 172 + n$

$255 \le 172 + n$

Subtract 172 from each side of the inequality

$255 - 172 \le n$

$83 \le n$

Also,

$\frac{75 + 97 + n}{3} \le 90$

$\frac{172 + n}{3} \le 90$

Multiply both sides by 3

$172 + n \le 90*3$

$172 + n \le 270$

Subtract 172 from both sides of the inequality

$n \le 270 - 172$

$n \le 98$

Combining both together, the possible values of her third quiz score would be:

$83 \le n \le 98$

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2 years ago

What is the equation of the line in slope-intercept form?

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2 years ago

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2. At the bike shop, Jason is buying a new bike that costs $215. If the sales tax rate in his state is 7%, how much tax will Jas

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Answer:

Jason will pay $50.05 in taxes

Step-by-step explanation:

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3 years ago

Four students were asked to write an expression which has terms that have a greatest common factor of 8c. The expressions provid

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Answer:

Wyatt wrote the correct expression

Step-by-step explanation:

Here we are to evaluate which of the students wrote an expression with the highest common factor being 8c

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For Xavier we have 36c-24c; 8 is not a factor of 36, so it won’t work

For Yang 8c + 40; 8(c+ 5); what we are trying to look for is 8c and not 8 so this is wrong also

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3 years ago

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A baseball player comes up to bat 3 times during a league game. He either gets a hit or gets an out. How many different combinat

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Answer:

8 different combinations are possible.

Step-by-step explanation:

Here, we have 2 different combinations for each time.

And the player comes out to bat 3 times.

So, total number of combinations are:

$2^{3}$ i.e. a total of 8 number of times.

Let a hit is termed as 'H' and an out is termed as 'O'.

Total combinations are:

{HHH, HHO, HOH, HOO, OHH, OHO, OOH, OOO}

Kindly have a look at the tree diagram attached in the answer area.

In starting, there are 2 combinations possible, i.e. 'O' and 'H'.

After 'O' , 2 possible i.e. 'O' and 'H'.

After 'H' , 2 possible i.e. 'O' and 'H'.

and so on....

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3 years ago