MATHEMATICS MIDDLE SCHOOL

At the beginning of the day the stock market points and stays at this level for most of the day. At the end of the day the stock market
points from the at the beginning of the day. What is the total change in the stock market from the beginning of the day to the end of the day?

Answers

Answer 1

Answer:

Answer:

spanish yesss

Step-by-step explanation:

no inglish

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Sam receives 4 dollars more than Nathan for allowance. Nathan receives 8 dollars less than Hector. If Sam receives 15 dollars for allowance, how much does Hector receive?

A skateboard that sells for $65 is on sale for 15% off. Find the sale price?

Answers

original price: $65
discount: 15% off
sale price: ?

There are two ways you can solve this problem:

Here's the longer way (by one step):
65 * .15 (15% in decimal form) = 9.75
65 - 9.75 = 55.25
sale price = $55.25

Here's the method that's one step shorter:
65 * .85 (100-15 ~ because it's 15%[15/100] off) = 55.25
sale price = $55.25

Either way works for solving discounts/sales.

The skateboard now sells for 55.25. Hope this helps.

How do you calculate Rates?

Answers

You find the time and how fast it is going then you divide the distance by the time to find the unit rate. Hope it helped. :)

George walks 1 mile to school. He leaves home at the same time each day, walks at a steady speed of 3 miles per hour, and arrives just as school begins. Today he was distracted by the pleasant weather and walked the first 12 mile at a speed of only 2 miles per hour. At how many miles per hour must George run the last 12 mile in order to arrive just as school begins today? 4

Answers

i'll just assume you meant he has to walk 24 miles to school since 12 + 12 isn't 1. if he normally walks 3 miles an hour for 24 miles, his average speed is also 3 miles an hour. if he walks 2 miles an hour for the first half of his 24 mile journey, he has to walk 4 miles an hour for the second part, since he has to reach his average speed of 3 miles an hour

Final answer:

George must run the last 1/2 mile at a speed of 2/3 mile per hour to arrive just as school begins today.

Explanation:

To find the speed George must run the last 1/2 mile in order to arrive just as school begins today, we can start by calculating the time it took for George to walk the first 1/2 mile at a speed of 2 miles per hour. We can use the formula Time = Distance / Speed to calculate the time: Time = (1/2) mile / 2 miles per hour = 1/4 hour = 15 minutes.

We know that George arrives just as school begins, so the total time it takes for him to walk 1 mile is the same as the total time it takes for him to walk the first 1/2 mile at 2 miles per hour, plus the time it takes for him to run the last 1/2 mile at a new speed. Therefore, the total time is 15 minutes + time to run the last 1/2 mile. We can set up the equation: (15 minutes) + (1/2 mile / speed) = 60 minutes (as 60 minutes is one hour). We can then solve for the speed by subtracting 15 minutes from both sides and rearranging the equation:

1/2 mile / speed = 45 minutes = 3/4 hour. Multiplying both sides of the equation by the speed:

(1/2 mile) = (3/4 hour) * speed

speed = (1/2 mile) / (3/4 hour) = (1/2 mile) * (4/3 hour) = (1/2)(4/3) = 2/3 mile per hour.

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Solve the Equation!!

Z - 2/3 = 1/8

Answers

$z- (2)/(3) = (1)/(8) \n\n z = (1)/(8) + (2)/(3) \n\nz = (3)/(24) + (16)/(24)\n\nz = (3+16)/(24) \n\nz= (19)/(24)$

The value of Z in the equation given is 19/24.

Given is an equation, Z - 2/3 = 1/8, we need to solve for Z,

To solve the equation Z - 2/3 = 1/8, follow these steps:

To clear the fraction, we can multiply every term in the equation by the least common multiple (LCM) of the denominators, which in this case is 24.

This step eliminates the fractions from the equation.

Multiplying each term by 24:

24(Z) - 24(2/3) = 24(1/8)

Simplifying:

24Z - 16 = 3

To isolate the variable Z, we need to get rid of the constant term (-16) by adding 16 to both sides of the equation.

24Z - 16 + 16 = 3 + 16

Simplifying:

24Z = 19

To solve for Z, we need to isolate it on one side of the equation. We can do this by dividing both sides of the equation by 24.

24Z/24 = 19/24

Simplifying:

Z = 19/24

Therefore, the solution to the equation Z - 2/3 = 1/8 is Z = 19/24.

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of the 125 guests invited to a wedding ,104 attended the wedding .What percent of the invited guests attended the wedding

Answers

$(104)/(125) =(104*8)/(125*8)=(832)/(1000)$

832/1000 = 0.832 = 0.832 * 100% = 83.2%

83.2% of the invited guests attended the wedding.

. A referee was standing on a certain yard line as the first quarter ended. He walked 41 3/ 4 yards to a yard line with the same number as the one he had just left. How far was the referee from the nearest goal line?