The total of students in 11th and 12th grade is 30% + 10% = 40% of the students at the school.
The total of students in the 9th and 10th grade is 20% + 40% = 60% of the students at the school.
The difference between the groups is 60% - 40% = 20% of the students at the school. That difference is 100 students, so 20% of the student body is 100 students. Multiplying by 5 tells us 100% of the student body is 500 students.
-6 + (-5) + 7
what do I need to do first?
-6 + (-5) +7
just add from left to right:
1st step:
-6 + (-5) = -11
2nd step:
-11 +7 = -4
The rates for a long distance telephone call are $0.70 for the first 5 minutes and $0.40 for each additional minute. How much would a 4-minute call cost?
What is 35 written as a percent?
ted won 41 pieces pf gum playing basketball the country fair.at school he gave two to every students in his math class.he olny have 9 remaining.how many student are in the class
wrote a doubles fact. It has a sum less than 10 and greater than 4. The addends are each less than 5. What fact might she have written?
what is the measure of each angle in an equilateral triangle
a.45
b.60
c.90
d.120
$300 to $200 percent change
Can you show work too please? I am terrible at math.
I absolutely love how this is a got-to website for kids who just need answers and work shown. like right now im in a math test and looking around.
You are adding 6*3/4+3*2/3 using fraction strips.Explain how you rename the fraction part of the sum.pleeeeeeeeeaaase help : (
Write a division problem that will have a two digit quotient and another division problem that will have a 3 digit quotient. Explain how you chose the divisors and dividends
Tony ran laps around a track to raise money for a hospital. Tony raised $15 plus $1.50 per lap that he ran. He raised a total of $255. Let x represent the number of laps Tony ran. What expression completes the equation to determine the total number of laps Tony ran? How many laps did Tony run? Enter your answers in the boxes.
Answer:
1.50/255 160 LAPS
Step-by-step explanation:
a new television set was recently purchased for the common room in a Residence Hall for $492.20 including tax. If the tax rate is 7% ,find the price of the television before taxes
Jackie had $135 to spend at the mall. She spent 29% of that money on a dress. Jackie spent $___ on the dress.
So here is a better explanation
?/135 = 29%/100
100? = 135 x 29 = 3915
100?/100 = 3915/100 = 39.15
Jackie spent 39.15$
40 is 160% of what number?
writing this in equation form you have 160% times X = 40
so 160% * x =40
160% as a decimal = 1.60
so 1.60 * x = 40
to find x divide both sides by 1.6
40 /1.6 = 25
the number is 25
What is, 901x1041 pls help dont have a calculator
A salt mixture has 8 parts water and 2 parts salt. Suppose one part of each is added. What is the new ratio of salt to water?
A rectangle that is 21 inches long and 13 inches wide
The area of rectangular piece that is 21 inches long and 13 inches wide is 273 square inches
What is the Area of Rectangle?The area of rectangle is -
A = L x B
Given is a rectangular piece that is 21 inches long and 13 inches wide
We can calculate the area using the formula -
Area = Length x Width
A = 21 x 13
A = 273 square inches
Hence, the area of rectangular piece that is 21 inches long and 13 inches wide is 273 square inches
To solve more questions on Areas, visit the link below-
brainly.com/question/21412891
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PLEASE HELP AND SHOW WORK!!
8x + 14y =
4 | : 2
-6x - 7y = -10
4x + 7y = 2
-6x - 7y = -10
4x - 6x = 2
- 10
- 2x = - 8
2x = 8
x = 4
8x + 14y = 4
14 y = 4 -
8x
14y = 4 - 8*4
14y = 4 - 32
14y = 28
y = 2
What is the APR of a payday loan for $1460 due in 15 days that charges a $90 fee?
Answer:
The answer is 150%
Step-by-step explanation:
Amount of pay day loan = $1460
Also given is that the payday loan for $1460 due in 15 days that charges a $90 fee.
Per day it will charge = [tex]\frac{90}{15}=6[/tex] dollars
For a year it will charge = [tex]365\times6=2190[/tex]
Thus for the due amount of $1460, it will be charged on a rate of =
[tex]\frac{2190}{1460} \times100[/tex] = 150%
Therefore, the APR is 150%.
W = 3x + 7y solve for y
Next year, four elementary schools will each send 126 students to Bedford Middle School. What is the total number of students the elementary schools wil send to the middle school?
Trey wrote 9.09-0.1=9.08.is his answer correct
The sum of 225 can be expressed as 200 + 25. Use the Distributive Property and GCF to rewrite the sum
If a and b are even integers and c is an odd integer, which of the following would be an odd integer? a + b + c ab - bc a x b x c b x c c (a + b)
what is the distributive property of the GCF of 36 and 45
Mr. Rodriguez is packing bags of snacks for his children’s lunchboxes. If he has 20 blueberries and 30 grapes, what is the maximum number of bags of snacks that he can pack so that each bag has the same number of blueberries and grapes?
With equal distribution of blueberries and grapes, Mr. Rodriguez can pack maximum of 10 bags of snacks.
What is ratio?Ratio is a quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
Given is that Mr. Rodriguez is packing bags of snacks for his children’s lunchboxes and for that he has 20 blueberries and 30 grapes.
Now, we have -
Number of blueberries = n[b] = 20 blueberries
Number of grapes = n[g] = 30
For equal distribution, there should be a ratio of → n[b]/n[g] = 20/30 = 2/3
Or we can write it as 2 : 3. This means that in each box there should be 2 blueberries and 3 grapes.
The maximum number of bags [x] that Mr. Rodriguez can pack can be calculated as -
2x + 3x = 20 + 30
5x = 50
x = 10
Therefore, with equal distribution of blueberries and grapes, Mr. Rodriguez can pack 10 bags of snacks.
To solve more questions on ratio equality, visit the link below-
https://brainly.com/question/2074272
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Express 4 8/9 as an improper fraction
D=1/5fk solving for f
Round the nearest dollar amount of $34.57
why is iron usually made into alloy for commercial uses?
A iron is too lightweight of a metal
B iron is a scare natural resource
C iron reacts easily with air and water
D iron by itself is to hard
answer fast please
Iron is typically alloyed for commercial uses because it reacts easily with air and water, leading to corrosion. By creating alloys such as steel with added elements like carbon and chromium, iron becomes more robust and rust-resistant, lending itself to a wider range of applications.
The reason iron is usually made into an alloy for commercial uses is that iron reacts easily with air and water, which is option C. Commercial alloys of iron, like steel, are produced by adding elements such as carbon and metals like manganese, chromium, nickel, tungsten, molybdenum, and vanadium. These elements create an alloy that is more resistant to corrosion (rusting), and they can be engineered to have different properties suitable for specific applications. For example, stainless steel contains chromium which helps in forming a protective oxide layer on the surface, thereby protecting the base iron from rusting.
While wrought iron, which is a commercially pure iron containing less than 0.2% carbon, is quite resistant to rust and is malleable and ductile, it has largely been replaced by mild steel. Mild steel, though not as corrosion-resistant as true wrought iron, is more cost-effective and widely available. Therefore, the commercial use of iron predominantly involves its transformation into alloys that benefit from enhanced strength, durability, and corrosion resistance.
A concert hall seats 7,689 people.There were 8 concerts in June,and a ticket was sold for every seat.How many tickets were sold in June?