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2 years ago

Four students worked to raise money for a school club. Which student raised the most money in one hour?

Mathematics

2 answers:

LenaWriter [7]2 years ago

6 0

Answer:

Sam

Step-by-step explanation:

Patty: 325.75/8 = 40.72/hr

Quinn: 125.5/3 = 41.83/hr

Reece: 74.85/2 = 37.43/hr

Sam: 215.25/5 = 43.05/hr

Nady [450]2 years ago

5 0

Answer:

your answer is Sam

Step-by-step explanation:

Sam = $215.25

for 1 hour = $125.25/5

= $43.05

so therefore Sam got the highest amount of money raised in one hour

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Hello my friends <br>can u help me out?

lana66690 [7]

X = 5 y = 4
x * y = 20

7 0

3 years ago

Read 2 more answers

An equilateral triangle has sides of length 2 units. A second equilateral triangle is formed having sides that are 150% of the l

murzikaleks [220]

Answer:

The percent increase in the perimeter is 337.5%

Step-by-step explanation:

The easiest way to approach this problem is by using consecutively the simple rule of three.

If the first triangle has sides of length two then, we can compute the second triangle's sides length as follows:

2 units------100%

X units------150%

this way

$X = 2*\frac{150}{100}\\ X =2*1.5\\X=3units$ .

Now for the third triangle we repeat the same process

3 units------100%

X units------150%

getting that the length of the sides for the third triangle is

$X = 3*\frac{150}{100}\\ X =3*1.5\\X=4.5units$ .

Now for the last triangle we repeat the same process

4.5 units------100%

X units------150%

getting that the length of the sides for the last triangle is

$X = 4.5*\frac{150}{100}\\ X =4.5*1.5\\X=6.75units$ .

Now, we need to know the perimeter of the first and last triangle. This can be calculated as the sum of the length of the sides of the triangle.

For the first triangle

$P_{first}=2+2+2\\P_{first}=6$

and for the last triangle

$P_{first}=6.75+6.75+6.75\\P_{first}=20.25$ .

To compute the percent increase in the perimeter from the first to the fourth triangle we will use one last simple rule of three (this time the percentage will be the variable)

6 units------100%

20.25 units------X%

$X = 100\frac{20.25}{6}\\ X=337.5\%$ .

4 0

2 years ago

Jim earns a regular hourly rate of $5 and a premium hourly rate of $6. He worked 45 hours last week. What is his gross pay?

Troyanec [42]

Is 495 just multiply 5 by 45 and then sum 6 by 45

8 0

3 years ago

Naty bought a dress for $24.95 and a skirt for $14.95.

FrozenT [24]

Answer:

Total items = $39.90

Sales tax amount = $3.7905

Total cost = $43.691

The clerk's error is using 9.5 as sales tax amount instead of finding 9.5% of the total items

Step-by-step explanation:

Dress = $24.95

Skirt = $14.95

steps the clerk completed.

Step 1: 24.95 + 14.95 = 39.90

Step 2: 39.90 +9.5 = 49.40

Correct steps:

Total items = dress + skirt

= $24.95 + $14.95

= $39.90

Sales tax = 9.5%

Sales tax amount = 9.5% of total

= 9.5/100 × $39.90

= 0.095 × 39.90

= $3.7905

Total cost = Total + sales tax amount

= $39.90 + $3.7905

= $43.6905

To the nearest hundredth

= $43.691

Sales tax is the amount of money imposed by government on the sales of some items

Total cost is the cost of all items including sales tax

7 0

2 years ago

Can someone tell me if im right? PLEASE DONT JUST SAY YES if you don’t know

tia_tia [17]

Answer: You are incorrect, the slope is correct, but the actual y-intercept is 205 ft.

Then the equation is:

y = (-15 ft/min)*x + 205 ft

Step-by-step explanation:

Ok, let's solve this.

We know that water is drained from a reservoir, let's assume that we can model this situation with a linear relation:

y = a*x + b

Where x is time, y is the height of the water in the reservoir, a is the slope (in this case represents how much changes the height of the water in the reservoir in one unit of time) and b is the initial height of the water in the reservoir.

We know that for a line that passes through the points (x₁, y₁) and (x₂, y₂) the slope is:

a = (y₂ - y₁)/(x₂ - x₁)

For this particular case we know that after 2 minutes the height of the water is 175 ft, then we have the point (2 min, 175 ft)

and after 5 minutes (so 7 minutes in total), the height of the water is 100ft, then: (7 ft, 100ft)

Then the slope of this:

a = (100 ft - 175 ft)/(7 min - 2 min) = (-75ft/5min) = - 15 ft/min

Then our line is something like:

y = (-15ft/min)*x + b

To find the value of b, we can use the fact that when x = 2 min, y = 175 ft

So if we replace these two values in the equation we get:

175ft = (-15 ft/min)*2 min + b

175 ft = -30 ft + b

175 ft + 30 ft = b

(here is your problem, it seems like you subtracted instead of adding in this part)

205 ft = b

Then the equation is:

y = (-15 ft/min)*x + 205 ft

So you are incorrect (but only for a little bit), you computed wrong the y-intercept.

3 0

3 years ago

Four students worked to raise money for a school club. Which student raised the most money in one hour?​

Four students worked to raise money for a school club. Which student raised the most money in one hour?