Look at the following problem and solution given by a student: Abel, Belle, and Cindy have $408 altogether. Belle has $7 more than Cindy and $5 more than Abel. How much does Abel have?
Answers
a=a
b=7+a
c=5+a
a+(7+a)+(5+a)=408
3a+12=408
3a=396
a=132
Abel has $132
Belle has $139
Cindy has $137
Prove:
132+139+137=408
Related Questions
two 5th grader solve 400000 divided by 800 Carter said the answer is 500 while Kim said the answer is 5000:secont questions what if the problem is 4000000÷8000?what is the quotient
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rearrange 2y-6x=10 into the form y=mx+c?
Answers
Paige works at a department store and has a commission rate of 3 percent. Her sales for the quarter were $4,596. If she earns $50 per day and she worked 30 days in the quarter, what is the total amount she earned?
Answers
50*.03=1.5
So she make $1.50 for every $50 of sales, so you multiply the amount she made by her commission each day by the number of days she worked:
1.5*30=45
She earned a total of $45
Answer:
Here's what the equation would look like:
30(50) + 0.03(4596)
1500 + 137.88
Paige earned $1637.88
Step-by-step explanation:
17 - 2c for c = 7 what is the answer
Answers
17 - 2(7)
17 - 14
3
3 is the answer!
The result of the expression 17 - 2c is 3, where c = 7.
What are Mathematical operators?
In mathematics, an expression is a group of numbers and operations. The components of a mathematical expression that perform an operation are as follows:
An operator is a symbol used to represent a mathematical operation. Examples include division, multiplication, addition, and subtraction.
Given, an expression 17 - 2c and value of c = 7
The value os expression for c =7
=> 17 - 2*7
=> 17 - 14
=> 3
therefore, The value of the expression 17 - 2c for c = 7 is 3.
Learn more about Mathematical operators here:
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11 less than three times a number is the same as 75 less than the product of -1 and the number
Answers
11 < 3x = 75 < -1x
-11+3n=-75-n
solve
add n to both sides
-11+4n=-75
add 11 to both sides
4n=-64
divide both sides by 4
n=-16
the number is -16
at a zoo an asian elephants eats roughly 5% of its body weight each day.If an Asian elephant eats 300 pounds of food a day,How much does it way
A:1,500lb
B:6,000lb
C:18,000lb
D:120,00lb
Answers
A miniature horse weighs 268 fewer kilograms than a Shetland pony. How much do the Shetland pony weigh if the miniature horse is 56 kg
Answers
56 + 268
324kg
Pony = 56kg+268kg
Pony = 324 kg
janelle has 3.6 yards of wire, whice she wants to use to make bracelets. she needs 0.3 yard for each bracelet. altogether, how many bracelets can janelle make?
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Fiona eats 75 grams of trail mix. How many calories does she eat? If 50 trail mix= 150
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3×75=225 calories
Final answer:
To find out how many calories are in 75 grams of trail mix when 50 grams contain 150 calories, set up a proportion and solve for x. The calculation shows that 75 grams of trail mix contains 225 calories.
Explanation:
If 50 grams of trail mix contains 150 calories, to find out how many calories are in 75 grams of trail mix, we need to set up a proportion since the relationship between the weight of the trail mix and the calories it contains is a direct one. This means that if the weight goes up, the calories will also go up by the same rate.
To calculate the calories in 75 grams of trail mix, we use the following steps:
Understand the given information: 50 grams = 150 calories.Set up a proportion to find out how many calories are in 75 grams:(50 grams / 150 calories) = (75 grams / x calories)
Cross-multiply to solve for x (the number of calories in 75 grams):
50x = 75 * 150
Divide both sides by 50 to solve for x:
x = (75 * 150) / 50
x = 225 calories
A drama club earns $1040 from a production. A total of 64 adult tickets and and 132 student tickets are sold. An adult ticket costs twice as much as a student ticket. • write a system of linear equations that represents this situation. • what is the cost of each ticket?
Answers
64a+132s=$1040
a=2s
128a+132s=$1040
260tickets=$1040
$1040/260=$4
s=$4 (1s=$4x1)
a=$8 (2s=$4x2)
132s=$528 (132x$4)
64a=$512 (64x$8)
TOTAL=$1040
when you find less than 100% of a number how does your answer relate to the original number.... answers are the a) the numbers are equal b) it is less than the original number c) it is greater than the original number d) there is no relationship
Answers
Say the number 1 is 100% and .50 is 50%. Is .50 larger than 1? Nope. Therefore, the correct answer is indeed B.
I hope I helped and let me know if you have any other questions! ^^
b) it is less than the original number. Finding less than 100% of a number means the answer is b) less than the original number, since 100% represents the whole.
Explanation:When you find less than 100% of a number, the answer is b) it is less than the original number. This is because 100% of a number represents the number itself, so any percentage less than 100% means you're taking a part of the number which is smaller than the whole. For example, finding 50% of a number is the same as finding half of it - clearly, half of something is less than the whole.
mitt ate 24 peanuts this represents 75% of the bag of peanuts how many peanuts were originally in the bag
Answers
Show Yor Work : 24 is the part
75 is the percent out of 100
So think as it if it was .....
part/whole = percent/100
REMEBER THIS: 100 WILL ALWAYS BE THE TOTAL OF THE PERCENT!!!!!!!
So you multiply 24 ˣ 100 =2400/75 = 32
This is a method for cross multiply..... If you have any comments or question dm me in the inbox.
Each snack pack holds 20 crackers how many crackers in all are there in 4 snack packs
Answers
the answer is 80
how do you turn a decimal into a fraction
Answers
Than you write it as you say it
Which expression demonstrates the distributive property applied to the expression 4(x + y)?
Answers
Bobbys collection of sports cards has 3/10 baseBall cards and 39/100 foo taller cards. THe rest are soccer cards. What fraction of bobby'se sports cards are baseballa or football cards?
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Please Help Me With This Other Assignment!!!!!!!!!
I Don't want to fail!!!!!!!!!!!!!
I will make you brainliest!!!!!!!!!!!!!!!
Answers
2) you need to come up with a drawing for it.
3)You can calculate it using Pythagoras' theorem:
(5)2 + (2)2 =
25 + 4 = C2
√100 = C
5.3 m. = C
Thus, the painter will need a ladder about 5 meters high.
hope this helps you
Aaron has a budget of $100 per month to spend on lunch. He made a table showing the total amount of lunch money he will have left after the given number of lunches.
Number of lunches 0 5 10 15
Total amount of lunch money left ($) 100 75 50 25
Which equation, in standard form, represents the relationship between the number of lunches, x, and the amount of lunch money Aaron will have left, y?
x + 5y = 100
100x + y = 5
x + 100y = 5
5x + y = 100
Answers
5(5 lunches) is 25 arbitrary units
amount left after 5 is 75
25 + 75 = 100
each lunch is 5 dollars
Answer:
its D
Step-by-step explanation:
The model below can be used to find the quotient of 1/2 divided by 1/8 . What is the quotient?
A 1/16
B 2/5
C 2
D 4
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20 gallons is greater than or less than 75 quart
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Blueberries are on sale for $2.80 per pint. The regular price is $3.50 per pint.
What is the percent of decrease?
Select from the drop-down menu to correctly complete the statement.
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Answer: The percent of decrease= 20 %.
Step-by-step explanation:
Regular price of blueberries= $3.50per pint
Current selling price=$2.80 per pint
Clearly, there is decrease in price as 'Current selling price' < 'Regular price'
Now, Decrease in price=Regular price-Current selling price
[tex]=\$3.50-\$2.80=\$0.70[/tex]
We know that Decrease percentage =[tex]\frac{\text{Decreased price}}{\text{Regular price}}\times100[/tex]
[tex]=\frac{0.70}{3.50}\times100\\=\frac{7}{35}\times100\\=\frac{1}{5}\times100\\=20\%[/tex]
Therefore, the percent of decrease= 20 %.
A 14-ounce box of cereal sells for $2.10. What is the unit rate?
Answers
$0.3/2oz
$0.15/oz
So 15 cents per oz
Answer:
The unit rate is equal to [tex]0.15\frac{\$}{ounce}[/tex]
Step-by-step explanation:
we know that
The unit rate is the ratio of two measurements in which the second term is equal to one
In this problem to find the unit rate, divide the total cost of cereal by the total weight of cereal
so
[tex]\frac{2.10}{14}\frac{\$}{ounces} =0.15\frac{\$}{ounce}[/tex]
therefore
The unit rate is equal to [tex]0.15\frac{\$}{ounce}[/tex]
how do you get the slope intercept of two points?
Answers
Use the formula
Slope = rise/run= y2-y1
x2-x1
Slope= 6 - [-7]
-3 - [-7]
so the slope equals 13/4
The table shows the cost of renting movies online.
Number of Movies Cost
1 $3.99
2 $7.98
3 $11.97
4 $15.96
5 $19.95
What does the rate of change mean in this situation?
A) The cost increases $11.97 for every additional movie rented .
B) The cost increases $7.98 for every additional movie rented.
C) The cost increases $3.99 for every additional movie rented.
D) The cost increases $15.96 for every additional movie rented
Answers
Explanation.- Just decrease a number from it's consecutive larger number. That's all!
The rate of change in the mean situation will be the cost increase of $3.99 for every additional movie rented. Hence, option C is correct.
What are arithmetic operations?The four basic operations of arithmetic can be used to add, subtract, multiply, or divide two or even more quantities.
They cover topics like the study of integers and the order of operations, which are relevant to all other areas of mathematics including algebra, data processing, and geometry.
As per the given information in the question,
Price of 1 movie = is $3.99
Price of 2 movies = $7.98 which is 2 times one movie
Price of 3 moves = $11.97 which is 3 times one movie and so on.
It means that the rate of increase in the price will be $3.99
To know more about arithmetic operations:
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Ester packed 9 boxes inside of a crate. Each box weighed the same amount. If the crate weighed a total of 92.16 kilograms, how much did each box weigh?
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$105 skateboard; 7 1/2% tax
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So 7&1/2 and equal to 7.5% And when it is a percentage, you move the decimal two places to the right. So it would be 0.75%.
Therefore, we time 0.75 and 105 together to see how much is the tax.
0.75*105 =78.75
Then we add 105 and 78,75 together to get the totally amount pay.
105 + 78.75 = 183.75
So the total is 183.35.
Or you can do it like this:
105* 1.75 = 183.75
The answer is the same but the second is just faster.
Draw one row of two unit cubes stacked on top of another row of unit cubes
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Answer:
umm can't draw on a phone...
what,are the first 5 multiples and all the factors of 48
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how do you subtract fractions with whole numbers
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The question is Model 24% on a 5x5 grid.
The attachment to the grids are below.
Answers
Answer:
Option 2 is correct .
Step-by-step explanation:
Given : A big cube 5*5 which contains small 25 cubes
Solution :
Let 25 small cubes denotes 100%
So , 1% is denoted by : [tex]\frac{25}{100}[/tex]
So, 24 % is denoted by :
⇒[tex]\frac{25*24}{100}[/tex]
⇒[tex]6[/tex]
Thus to show 24% on 5*5 , 6 small cubes must be shaded .
In Option 2 , 6 small cubes are shaded.
Hence , Option 2 is correct .
Answer:
Option 2 is correct .
Step-by-step explanation:
Given : A big cube 5*5 which contains small 25 cubes
Solution :
Let 25 small cubes denotes 100%
So , 1% is denoted by :
So, 24 % is denoted by :
⇒
⇒
Thus to show 24% on 5*5 , 6 small cubes must be shaded .
In Option 2 , 6 small cubes are shaded.
Hence , Option 2 is correct .