You bought 555 apples and 444 oranges and your friend bought 555 apples and 555 oranges. He bought 555-444=111 oranges more than you bought.
You paid $10, he paid $11, then he paid $1 more than you paid.
This means that 111 oranges cost $1.
Thus, 444 oranges cost $4 and 555 apples cost $10-$4=$6.
1. If 111 oranges cost $1, then 1 orange cost [tex]\$\dfrac{1}{111} .[/tex]
2. If 555 apples cost $6, then 1 apple cost [tex]\$\dfrac{6}{555}=\dfrac{2}{185}.[/tex]
Answer:
Each apple costs $1.20 and each orange costs $1.
Step-by-step explanation:
Let x represent the number of apples and y represent the number of oranges.
For the fruit you bought, 5 apples and 4 oranges, we have 5x+4y. This costs $10. This gives us the equation
5x+4y = 10
For the fruit your friend bought, 5 apples and 5 oranges, we have 5x+5y. This costs $11. This gives us the equation
5x+5y = 11
Together we have the system
[tex]\left \{ {{5x+4y=10} \atop {5x+5y=11}} \right.[/tex]
We will eliminate x by subtracting the bottom equation from the top:
[tex]\left \{ {{5x+4y=10} \atop {-(5x+5y=11)}} \right. \\\\-1y = -1[/tex]
Divide both sides by -1:
-1y/-1 = -1/-1
y = 1
Each orange costs $1.
Substitute this into the first equation:
5x+4(1) = 10
5x+4 = 10
Subtract 4 from each side:
5x+4-4 = 10-4
5x = 6
Divide both sides by 5:
5x/5 = 6/5
x = 1.2
Each apple costs $1.20.
How do you solve this what is 0.399 written as a percent
the answer is 39.9 %
please show me how to solve this equation step by step!
7(0.4m-0.1)=5.2m+0.86
What is the solution set of the equation 3x-x-9=0
Serena makes $9 per hour cutting laws. Each day, she earns about $15 in tips. If serena makes less than $100 on monday, witch inequality represents h, the number of hours she worked on monday
Subtract. −24−(−19) Enter your answer in the box.
−24−(−19) =
- 24 + 19 =
-5
Given A(3,2) and B(-5,8) how far apart are points A and B? *
10 units
calculate the distance (d) using the distance formula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (3, 2 ) and (x₂, y₂ ) = (- 5, 8 )
d = √(- 5 - 3 )² + (8 - 2 )²
= √(64 + 36 ) = √100 = 10
What should you do first to write 5.871x10-7 in standard form'
The standard form of the number 5.871x10⁻⁷ is 0.0000005871 after using the properties of the integer exponent.
What is an integer exponent?In mathematics, integer exponents are exponents that should be integers. It may be a positive or negative number. In this situation, the positive integer exponents determine the number of times the base number should be multiplied by itself.
It is given that:
The number is:
= 5.871x10⁻⁷
After using the properties of the integer exponent:
= 5.871x(1/10⁷)
= 5.871x(1/10000000)
= 5.871x0.0000001
= 0.0000005871
Thus, the standard form of the number 5.871x10⁻⁷ is 0.0000005871 after using the properties of the integer exponent.
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How can yo order rational numbers from least to greatest
To arrange numbers from least to greatest:
First write them down in decimal form. Now it will be easy to determine which value is greater than the other.
Arrange the decimal numbers from least to greatest.
Finally revert the decimal values to their fraction form having arranged them from one with least value to one with greatest value.
Distributive property for 144 divided by 8 (5th grade)
Omar is born weighing 8 pounds 3 ounces. The doctors says he should gain about 5 ounces each week for the next 4 weeks.How much should omar weight after 4 weeks
There are 42 pairs of shoes at the skate rental office.How many individual shoes are there in all?
In order to answer this question, you must do some multiplication!
So, in order to have a pair of shoes, you must have 2 shoes. There are 42 PAIRS of shoes. So if you wanna find the number of ALL of the shoes, you have to multiply da numbers.
42 × 2 = 84
There are 84 shoes altogether.
If you need anymore help, just let me know!
The number of shoes in one pair is two thus there will be 84 in the office.
What is multiplication?Multiplication is the general procedure in mathematics in which we multiply two or more numbers by each other to find a new multiplied number.
Multiplication gives us a resultant number that will be very big compared to the number which is going to be multiplied if and only if the number which is going to be multiplied is more than one.
As per the given,
Number of pairs of shoes = 42
Number of shoes in one pair of shoes = 2
Total number of individual shoes = 42 x 2 = 84
Hence "The number of shoes in one pair is two thus there will be 84 in the office".
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Susan can read 15 pages in 45 minuets. How many pages can she read in 60 minutes
Answer:
45mins ÷ 15pages = 3
so she reads 3pages per minute
3pages × 60minutes = 180
she read 180pages in 60minutes
hope this helps
Step-by-step explanation:
will mark brainliest, please hurry!
Triangle ABC is transformed to triangle A′B′C′, as shown below:
Which equation shows the correct relationship between the measures of the angles of the two triangles?
The measure of angle ABC = The measure of angle A prime B prime C prime
The measure of angle ABC = The measure of angle B prime C prime A
The measure of angle BCA = The measure of angle A prime B prime C prime
The measure of angle BCA = The measure of angle C prime A prime B prime
Answer:
The measure of angle ABC = The measure of angle A prime B prime C prime
Step-by-step explanation:
we know that
The transformation of the figure is a reflection, so after the transformation the shape still has the same size, area, angles and line lengths.
the triangles ABC and A'B'C' are congruent
therefore
the corresponding sides and corresponding angles are equal
so
The relationship between the measures of the angles of the two triangles is
[tex]m<ABC=m<A'B'C'[/tex]
[tex]m<BCA=m<B'C'A'[/tex]
[tex]m<BAC=m<B'A'C'[/tex]
What number rounded to the tens equals 300
Use the Rational Zeros Theorem to write a list of all potential rational zeros. (5 points)
f(x) = 2x3 - 5x2 + 7x - 3
So the Rational Zeros Theorem states that the potential zeros are ± P/Q, with P = factors of the constant and Q = factors of the leading coefficient.
In this case, the constant is -3 and the leading coefficient is 2.
P = 1,3Q = 1,2With P and Q established, divide them all as such:
[tex]\pm \frac{1}{1}, \pm \frac{3}{1}, \pm \frac{1}{2}, \pm \frac{3}{2}\\\\\pm 1,\pm 3, \pm \frac{1}{2}, \pm \frac{3}{2}[/tex]
In short, your potential zeros are ± 1/2, ± 3/2, ± 1, and ± 2.
3 to the 7th power times 3 to the power of negative 4
Final answer:
To calculate 3 to the 7th power times 3 to the power of negative 4, you add the exponents since the base is the same. This results in 3 cubed (33), which equals 27.
Explanation:
The question asks to calculate 3 to the 7th power times 3 to the power of negative 4. This can be simplified using the rules of exponents. When multiplying powers with the same base, you add the exponents. So for this problem, you would do the following:
3⁷ *3⁻⁴ = 3⁷⁺⁽⁻⁴⁾
3³ because 7 + (-4) equals 3
Therefore, the answer is 33 which is 3*3*3, equaling 27.
Moreover, a negative exponent like 3 to the power of negative 4 indicates that the number 3 is on the denominator, yielding 1 over 3 raised to the 4th power or 1/34.
Nikita invests $2,000 into a bank account with a 4% annual interest rate. In seven years, which is the most expensive item she could afford to buy?
Answer:
Anything that does not cost more than $2,560.00
Step-by-step explanation:
Provided that Nikita is spending money that she had invested and the amount she collected over the period of 7 years. She can buy any item that costs no more than $2,560.00 but how?
It is a problem of simple interest:
Here the principal amount (P) = $2,000.00
Interest rate (r) = 4%
Time period (t) = 7 years
So, total amount that she would get by the end of 7 years is:
[tex]A=P+SI[/tex]
[tex]SI=\frac{P\times r\times t}{100}[/tex]
Plugging the values we get:
[tex]SI=\frac{2000\times 4\times 7}{100}=560.00[/tex]
So the interest collected over 7 years is $560.00
Therefore, the total amount after 7 years is:
[tex]\$2000.00+\$560.00=\$2,560.00[/tex]
If Nikita is using this money then the most expensive item that she could buy will cost no more than $2,560.00.
Answer:
The answer is B (a mountain bike priced at $2,500) in Plato
Step-by-step explanation:
Please help 20 POINTS. Problem is below!!
10 units up means to add 10 to the y-coordinate of the vertex (h, k).
p(x) = 0.005(x - 40)² + 60
p(x) shifted up 10 units = 0.005(x - 40)² + (60 + 10)
q(x) = 0.005(x - 40)² + 70
solve the equation 7-(4^2-10)+n=10
Find the 64th term of the arithmetic sequence -4, -21, -38, ...−4,−21,−38,
Answer:
-1075
Step-by-step explanation:
The other person was right they forgot to make it a negative
There are two sequence in mathematics, one is arithmetic and other is geometric sequence. Therefore, the 64th term of the arithmetic sequence is -1075.
What is Arithmetic sequence?In an arithmetic sequence, the difference between consecutive terms, called common difference, is always the same. Another sequence is the geometric sequence.
The nth term of an arithmetic sequence is given by:
[tex]a_{n}[/tex]=a₁+(n-1)d
In which is the first term from−4,−21,−38 is a₁ -4
Common difference between two consecutive terms is d=-38-(-21)=-17
substituting in the above equation an=a1+(n-1)d
[tex]a_{n}[/tex]=-4+(n-1)(-17)
Since we have to find the 64th term of the arithmetic sequence we have to put n=64
[tex]a_{n}[/tex]=-4+(64-1)(-17)
[tex]a_{n}[/tex] =-4+(63)(-17)
[tex]a_{n}[/tex] =-1075
Therefore, the 64th term in the arithmetic sequence -4, -21, -38 is -1075.
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Please help asap 28 pts
The answer to this question is A
show use your work.There are approximately 402.5 meters around a typical running track sandra has challenged herself to run 10 laps a dya for 5 days.How many meters will sandra run if she meets her challenge?
What is the answer for this? The Glee club has 120 cupcakes to sell. They have decided to arrange the cupcakes in the shape of a rectangle, such that the rows have an even number of cupcakes and the columns have an odd number of cupcakes. How many arrangements of cupcakes can they create? Please answer how many arrangements of cupcakes they can make?!?!? Thx
Answer: 4
Step-by-step explanation:
Find all of the factor pairs of 120, then look for the ones that are even-odd
120
∧
120 1 even-odd
60 2 even-even
40 3 even-odd
30 4 even-even
24 5 even-odd
20 6 even-even
8 15 even-odd
10 12 even-even
There are 4 even-odd factors pairs for 120.
A fruit stand collected $1,800 by selling fruit. After paying the tax, the fruit stand had $1,683 left. What was the percentage of tax? __%
Let's find out how much tax was paid. Subtract the amounts: 1800 - 1683 = 117
So $117 was paid in tax. Divide this over the initial amount 1800 and we get 117/1800 = 0.065
To convert from decimal form to percent form, you multiply by 100. This is basically moving the decimal point 2 spots to the right. So we go from 0.065 to 6.5%
Therefore the answer is 6.5%
PLZ HELP 20 PTS
Use rounding to determine if the answer is reasonable. Round each of the factors to the nearest ten, then multiply. 117 × 19 = 222.3
Its not correct because the answer would be 1,440 (rounded) this is no where near as close as 222.3.
117 * 19
= 120 * 20 to the nearest 10
= 2400 which indicates that 2223 is a reasonable answer.
Cara is grocery shopping and needs chicken and steak for the barbeque she is having on saturday. Chicken is $2.99 per pound and steak is $5.79 per pound. She knows she wants to spend exactly $50 on meat. If c represents pounds of chicken and s represents pounds of steak, which equation represents this situation?
(2.99×c)+(50×s) this is the equation for the word problem
The sum of two number is 21. The second number is 6 time the first number. work out the two number.
you said times and sum, sum is addition and times is multiplication so im confused. can you copy the exact question so i can help?
The graph below represents which of the following functions?
This is a more difficult one to explain. Let's start with the line to the right. It has a slope (m) of [tex]\frac{-2}{2}[/tex] = -1 and a y-intercept of +3 (continue the line to see where it crosses the y-axis). So, the equation of that line is: y = -x + 3 when x ≥ 2. This can also be written as y = 3 - x when x ≥ 2. The only option that has that equation is A.
Answer: A
First of all, you can see that this is a piecewise polynomial, since it is shaped like a parabola before [tex] x = 2 [/tex], and is a line after [tex] x = 2 [/tex] So, option C is surely wrong, because it uses [tex] x = 3 [/tex] as splitting point.
Moreover, the way the parabola "bounces" on the x axis, avoiding its negative part, tells us that there is an absolute value. This excludes options B and D, and the answer is thus A.
Question 8
Solve the following system of equations using matrices.
3x – 2y = 31
3x + 2y = -1
(5, -8)
(3, 5)
(-3, 9)
(2, 8)
we are given
system of equations
First equation is
[tex]3x-2y=31[/tex]
Second equation is
[tex]3x+2y=-1[/tex]
now, we can find augmented matrix
[tex]A=\begin{pmatrix}3&-2&31\\ 3&2&-1\end{pmatrix}[/tex]
now, we can change it into reduced row echelon form
step-1: multiply the 1st row by 1/3
[tex]A=\begin{pmatrix}1&-2/3&31/3\\ 3&2&-1\end{pmatrix}[/tex]
step-2:add -3 times the 1st row to the 2nd row
[tex]A=\begin{pmatrix}1&-2/3&31/3\\ 0&4&-32\end{pmatrix}[/tex]
step-3:multiply the 2nd row by 1/4
[tex]A=\begin{pmatrix}1&-2/3&31/3\\ 0&1&-8\end{pmatrix}[/tex]
step-4: add 2/3 times the 2nd row to the 1st row
[tex]A=\begin{pmatrix}1&0&5\\ 0&1&-8\end{pmatrix}[/tex]
so, we get
[tex]x=5,y=-8[/tex]
Answer is (5,-8)
Solution is (5,-8)
3x – 2y = 31
3x + 2y = -1
first we write it in matrix form
3 -2 | 31 -------------> Row 1
3 2 | -1 -------------> Row 2
We use row operations and get matrix in 1 0 and 0 1 form
Subtract Row 2 by row 1. R2 -> R2 - R1. So R1 remains the same
3 -2 | 31 -------------> Row 1
0 4 | -32 -------------> Row 2
Divide row 1 by 3, R1-> R1/3. So R2 remains the same
1 [tex]\frac{-2}{3}[/tex] | [tex]\frac{31}{3}[/tex] -------------> Row 1
0 4 | -32 -------------> Row 2
Divide row 2 by 4. R2 -> R2/4
1 [tex]\frac{-2}{3}[/tex] | [tex]\frac{31}{3}[/tex] -------------> Row 1
0 1 | -8 -------------> Row 2
Now we need to get 0 in the place of -2/3
Multiply Row 2 by 2/3 and add it with Row 1. R1 --> 2/3 times R2 + R1
1 [tex]1*\frac{2}{3}+\frac{-2}{3}[/tex] | [tex]-8*\frac{-2}{3}\frac{31}{3}[/tex] -------------> Row 1
0 1 | -8 -------------> Row 2
Now simplify the fraction
1 0 | 5 -------------> Row 1
0 1 | -8 -------------> Row 2
So from this we can see that x=5 and y = -8
Solution is (5,-8)
Dan earns £9.90 per hour how much will he earn for 6 hours work?
Dan will earn £59.40 for 6 hours of work.
Explanation:To calculate Dan's earnings for 6 hours of work, we can multiply his hourly rate (£9.90) by the number of hours (6).
So, Dan will earn £9.90 x 6 = £59.40 for 6 hours of work.
Therefore, Dan will earn £59.40 for 6 hours of work.
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