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Helen [10]
4 years ago
7

If Sasha can run 720 yards in 4 minutes, how many feet can she run in 15 seconds?

Mathematics
1 answer:
Vika [28.1K]4 years ago
6 0
Okay so you're trying to find the unit rate of 720yds/4min. If you divide 720 by 4 you will have the unit rate as 180yds/1 min or 60 sec then if you divide 180 and 60 by 4 again you will get the answer of 45yds/15sec.
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Which expression represents the area of this figure?
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Answer:Where is the figure?

Step-by-step explanation:

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Michelle is building shelves for her room. She has a plank 137 inches long that she wants to cut into 7 shelves of equal length.
ipn [44]
I think that each shelf will be 19 inches.  Because 137 divided by 7 is 19 with the remainder of 4.  Half of 4 is 2. Take 2 inches off of each end and that is the 4.  So each shelf is 19 inches.
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can someone help me simplify this: the quantity 10 times x to the 6th power times y to the third power plus 20 times x to the th
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10x^6y^3 + 20x^3y^2 / 5x^3y = 
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8 0
3 years ago
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

3 0
3 years ago
I do not understand this
katrin [286]
Neither do i lol drop out of school
6 0
3 years ago
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