MATHEMATICS MIDDLE SCHOOL

A student gets 68 marks n therefore gets 85 percent total marks are?

Answers

Answer 1
Answer:

Answer:

There are 80 marks in total.

Step-by-step explanation:

Let the number of total marks be x.

The percentage score of the student can be written as the ratio

\displaystyle (68)/(x) = 85\%.

However,

\displaystyle 85\% = (85)/(100).

Equating the two:

\displaystyle (68)/(x) = (85)/(100).

Cross-multiply (that is: multiple both sides by 100x, the product of the two denominators) to get

85x = 68* 100.

\displaystyle x = (68* 100)/(85) = 80.

In other words, there are 80 marks in total.

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Answers

Answer:

yes

Step-by-step explanation:

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Lana and Emily are playing a competitive word game. Whoever plays all of their tiles first gets to add the value of their word plus the total value of all of their opponent’s remaining tiles to their score. Also, the opponent must subtract the total value of all of their tiles from their score.Suppose that the current score is: Lana 324, Emily 358. If Lana’s last word is worth 7 points, how many points does she need Emily to have in her hand in order to win?

Suppose that the current score is: Lana 324, Emily 358. If Lana’s last word is worth 7 points, how many points does she need Emily to have in her hand in order to win? ___________ points

Hint: If Emily had 5 points in her hand, by how much would the difference between the player’s scores change?

Answers

Lana gets the 7 points so she ends up with 331. She will then be 358-331=27points behind Emily. She needs to win, so there needs to be 1 more than 27 points of change in the score, or 28 points. Emily's hand value is added to Lana's and also subtracted from Emily's so her hand is worth twice the value as the amount. (If the hand is worth 10 points, it changes the scores by 20 points). Thus, we only need half of the 28 points of change for Lana to win. The answer is 14 points.

The quotient is 71 2/3 what is the divisor

Answers

since quotient =divisor ×dividend +remainder.
here, quotient =71 2/3=215/3
therefore dividend is 3
the answer to your question is 215

Evaluate the expression when a b 14 15 and b

Answers

a=-15
b=-5
(b+14)/a=(-5+14) / -15=9/-15=-9/15=-3/5

answer: -3/5

A grocery store sells 12 bottles of water for $13.80. A convenience store sells ten bottles of water for $11.80.Which store has the better buy

Answers

for this you have to divide the number of bottles by the price. so divide 12 by 13.08 and 10 by 11.80
the store that sells 12 bottles for 13.80

would a scale that is used to weigh food be the best tool to weigh concrete blocks? explain why or why not

Answers

No, i think the scale should be differ from one another.The scale that is used to weigh food scale tend be designed to measure the object with smaller weight so the user could accurately measure the nutrient that they could get from the food. (which usually measured below 100g)Scale for concrete blocks for the other hand, tend to be used for heavier objects
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