Final answer:
There are 30 students in total, 12 of whom play an instrument, and 25 of whom play a sport.
Explanation:
The question asks about the number of students who play an instrument and the number who play a sport. There are 30 students in total.
To find the number of students who play an instrument, we multiply 30 by ⅓ (2/5), since 2/5 of the students play an instrument. To find the number of students who play a sport, we multiply 30 by ⅕ (5/6), since 5/6 of the students play a sport.
For the instrument calculation: 30 × 2/5 = 12, so 12 students play an instrument.
For the sport calculation: 30 × 5/6 = 25, so 25 students play a sport.
write an equation and solve
To solve the equation r + (-6) = -10, since -6 is being added to r, we need to subtract -6 from both sides of the equation.
It's important to understand that minus a negative means the same thing as plus a positive so we're really adding 6.
On the left side of the equation, the -6 and +6 cancel out and we have r. On the right side of the equation, -10 + 6 is -4.
So we have r = -4 which is the solution to our equation.
Find the slope of the line that passes through the points (1,-4) and (4,2)
Question 2 options:
1/2
-2
2
-2/3
This is more of a question about a symbol, rather than a question about a problem.
I keep seeing 7√2 and I'm just wondering if the number outside of the radical is being multiplied by the square root, or if there is a deeper meaning. I can't really explain well, but if the square root of 2 is about 1.41 then would I multiply 1.41 by 7 to get 9.87? Or..?
you are right, when you see a number like 7√2
you would multiply 7 by √2
which = 7 x 1.41 = 9.87
Draw algebra tiles to model the given two step equation -3 = 5 - 4x
Help me with 234 thousands + 7 ten thousands = need answer ASAP!
Thanks
The solution of the addition will be 944000.
What is an expression?
Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that 234 thousand + 7 ten thousand. The summation of the numbers will be:-
Add both numbers.
S = 234000 + 710000 .
S = 944000
Therefore, the solution of the addition will be 944000.
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Clea estimates that a glass contains 250.55 mL of water. The actual amount of water in the glass is 279.48 mL. To the nearest tenth of a percent, what is the percent error in Clea's estimate?
How did you get that answer? Also doesn't 80 tens equal 800
An aquarium with a square base has no top. There is a metal frame. Glass costs 8 dollars/m^2 and the frame costs 7 dollars/m. The volume is to be 20 m^3. Express the total cost C in terms of the height h in meters. (Hint: work out the cost of the glass and frame separately.)
If the sales tax in your city is 4.4%, and an item costs
$3 before tax, how much tax would you pay on that item?
Round to the nearest hundredth or cent.
Simply take 4.4% of $3:
0.044 * 3 = 0.132
You would pay $0.13 tax on a $3 item.
A sauce recipe uses 4 cans of tomatoes in every 212 quarts.
How many cans of tomatoes are used in each quart of the sauce?
Answer: 1 3/5.
Step-by-step explanation: It's 2 1/2 not 212.
A group of preschoolers has 63 boy and 27 girls. What is the relationship of boys to all children?
A local gym charges a membership fee of $20 then a monthly fee of $15. Organize the data for the cost of gym membership for a year
A video store offers two types of rental cars. Each rental card is good for six months. The gold rental card costs $25 plus $1.75/rental. The silver rental card cost $10 plus $3.25/rental. Explain why someone would prefer one card over the other.
When choosing between the gold and silver rental cards, it is important to consider the frequency of movie rentals and the associated costs.
Explanation:When deciding between the gold and silver rental cards, there are a few factors to consider.
The gold rental card has an initial cost of $25 and then charges $1.75 per rental. On the other hand, the silver rental card has an initial cost of $10 and charges $3.25 per rental.
If you rent movies frequently, the silver card may be a better option because even though it has a higher initial cost, the lower charge per rental will result in lower overall cost. However, if you don't rent movies often, the gold card may be a better choice because the lower per-rental cost will offset the higher initial cost.
-4(-8x-8) im using the disturbutive property
my answer: 32x--32 is that correct or is it 32x+-32
or is it something else?
Mary purchased 4 tires by mail order. She paid $63.40 per tire plus $6.80 per tire for shipping and handling. There is no sales tax, because the tires were purchased out of state. She also had to pay $7.56 per tire for mounting and balancing. At a local store, Mary's total for the 4 tires with mounting and balancing would be $368 plus 88% sales tax. How much did Mary save by purchasing the tires through the mail?
Annie plants 6 rows of small flower bulbs in a garden. She plants 132 bulbs in each row. How many bulbs does Annie plant?
To the nearest hundredth, what is the distance between point (-6, -1) and point (4, 3)?
Answer:
10.77
Step-by-step explanation:
Write two decimals that have a difference of 16.825
Let
x-------> first decimal
y------> second decimal
we know that
[tex]y-x=16.825[/tex]
[tex]y=16.825+x[/tex]
Assume the value of x and find the value of y with the equation
so
For [tex]x=3.875[/tex]
Find the value of y
Substitute the value of x in the equation
[tex]y=16.825+x[/tex]
[tex]y=16.825+3.875[/tex]
[tex]y=20.700[/tex]
therefore
the answer is
The two possible decimals are
[tex]3.875[/tex]
[tex]20.700[/tex]
How far can you get away from your little brother with the squirt gun filled with paint if you can travel 3m/s and you have 15s before he sees you?
Answer:
45 m
Step-by-step explanation:
We are given that a little brother of your with the squirt gun filled with paint is far away from you.
We have to find the distance between you and your brother
Speed =3 m/s
Time taken by you =15 s
We know that speed=[tex]\frac{distance}{time}[/tex]
Substitute the value then we get
[tex]3=\frac{distance}{15}[/tex]
Distance =[tex]3\times 15[/tex]
Distance =45 m
Hence, you can travel 45 m then he sees you.
You can get 45 meters away from your little brother with the squirt gun filled with paint.
Explanation:To determine how far you can get away from your little brother with the squirt gun filled with paint, we need to calculate the distance using the formula: distance = speed x time. Given that your speed is 3 m/s and you have 15 seconds before he sees you, the distance can be calculated as follows:
distance = 3 m/s x 15 s = 45 meters
Therefore, you can get 45 meters away from your little brother with the squirt gun filled with paint.
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This is the call plan for Robert's cell phone:
$15 a month plus free texts plus 20 cents per minute for call time. How much is his bill if he talked 30 minutes and had 115 texts?
Question 4 options:
$6.00
$23.00
$27.00
$21.00
If you can buy one fruit basket for $30 then how many can you buy with $60?
3 erasers cost $4.41
Witch equation will help determine the cost of 4 erasers
To determine the cost of 4 erasers, set up a proportion using the given information.
Explanation:To determine the cost of 4 erasers, we can set up a proportion using the given information. We know that 3 erasers cost $4.41, so we can write the equation:
3 erasers / $4.41 = 4 erasers / x
To solve for x, we can cross-multiply:
3 * x = 4 * $4.41
x = (4 * $4.41) / 3
Calculating this, we find that the cost of 4 erasers is $5.88. So, the equation that will help determine the cost of 4 erasers is 3 erasers / $4.41 = 4 erasers / $5.88.
The correct equation that represents this relationship and would help determine the cost of 4 erasers is:[tex]\[ \frac{4}{x} = \frac{3}{4.41} \][/tex]
The correct option is (A).
The image shows multiple choice options for equations that could be used to determine the cost of 4 erasers given that 3 erasers cost $4.41.
To find the cost of 4 erasers, we would want to set up a proportion where the number of erasers is directly proportional to the total cost. Given that 3 erasers cost $4.41, we can write this relationship as:
[tex]\[ \frac{\text{Number of erasers}}{\text{Cost}} = \frac{3}{4.41} \][/tex]
We want to find the cost for 4 erasers, so we can set up an equation with [tex]\( x \)[/tex] representing the unknown cost for 4 erasers:
[tex]\[ \frac{4}{x} = \frac{3}{4.41} \][/tex]
This equation can be solved to find \( x \), the cost for 4 erasers. We can cross multiply to solve for \( x \):
[tex]\[ 3 \times x = 4 \times 4.41 \][/tex]
[tex]\[ x = \frac{4 \times 4.41}{3} \][/tex]
Let's solve for[tex]\( x \)[/tex] to find the cost of 4 erasers.
The cost for 4 erasers, given that 3 erasers cost $4.41, would be $5.88.
The correct equation that represents this relationship and would help determine the cost of 4 erasers is:
[tex]\[ \frac{4}{x} = \frac{3}{4.41} \][/tex].
complete question given below:
Rafael counted a total of 40 white cars and yellow cars. There were 9 times as many white cars as yellow cars. How many whit cars did Rafael count
yellow car = x
white cars = 9x ( 9 times as many white cars)
9x +x = 40
10x = 40
x = 40/10 =4
4 yellow cars
9*4 = 36 white cars
what is 1 8/9 divided by 1/3
What percent of 600 is 12?
Use a five-step plan to solve the following word problem. Show all five steps in your response:
Doug is twice Anne's age. Doug is 34 years old. How old is Anne?
Doug is twice Anne's age. Doug is 34 years old. How old is Anne?
What is the value for x?
Enter your answer in the box.
Y=-1/2x+2 whats the answer? Plz help me
Let x be the first factor in an expression in scientific notation. Describe the possible values of x.
In scientific notation, the coefficient is a number from 1 to 10 multiplied by a power of 10, which represents the number of decimal places moved to convert a number to this format.
Explanation:The first factor in an expression in scientific notation is the coefficient, which must be a number equal to or greater than 1 and less than 10. The coefficient is then multiplied by a power of 10 to represent the original number accurately.
For example, to write the number 79,345 in scientific notation, one would express it as 7.9345 × 104, because we have moved the decimal place to make 79,345 into 7.9345 while recording that we have moved the decimal place four positions to the right, hence the power of 10 being 4.
solve;
5(x+1)=6.4−2.7x
3(y−1.5)=9.9–4.2y
0.9y−1.8=0.3(y−4)