Answer:
8 gallons at $7
12 gallons at $2
Step-by-step explanation:
x gallons at $7 with the remaining (20 - x) gallons at $2 to get 20 gallons at $4
x(7) + (20 - x)(2) = 20(4)
Distribute
7x + 40 - 2x = 80
Combine like terms
5x + 40 = 80
Subtract 40 from both sides
5x = 40
Divide both sides by 5
x = 8 gallons at $7
20 - x = 12 gallons at $2
[[Please explain]] The length of a spring varies directly with the mass of an object that is attached to it. When a 30-gram object is attached, the spring stretches 9 centimeters. Which equation relates the mass of the object, m, and the length of the spring, s?
O s=3/10m
O s=10/3m
O s=3/10s
O s=1/30s
Answer:
The required equation is [tex]s =\frac{3}{10} m[/tex]
Step-by-step explanation:
Given: The length of a spring varies directly with the mass of an object that is attached to it. When a 30-gram object is attached, the spring stretches 9 centimeters.
To find : Which equation relates the mass of the object, m, and the length of the spring, s?
Solution :
Let the mass of the object m,
Length of the spring s,
When a 30-gram object is attached, the spring stretches 9 centimeters.
i.e, the times length of the object is attached to spring is The length of a spring varies directly with the mass of an object that is attached to it.
According to question,
i.e, length of the spring is 3 by 10 times the mass of the object.
Therefore, The required equation is
Help with Questions 4 and 5!
Will mark Brainliest for the best and accurate answers!
question 4 is A
question 5 is 43.6
question 5 showing work
how I would figure it out is 151-20 =131
then I would divide it by 3 for each day
_
131÷3=43.6
Answer:
131÷3=43.6
Step-by-step explanation:
write a summary about what happened in chapter 6 in mayflower treasure hunt
Answer:
This is not math
Step-by-step explanation: well its kinda obvious...
Express this number in scientific notation.
0.00014
Answer:
1.4 x 10^-4
I cant do powers on my laptop so thats what the arrow represents, I don't know if you know that or not so.
the -4 is because you move the decimal to the right 4 times to make the decimal between the two numbers making it 1.4
What is the slope of the line in the graph?
Answer:
-1 is the slope
Step-by-step explanation:
Take 2 points, you go down 2 and right 2 to get to the next point, so the slope is -2/2 = -1
Answer:-1
Step-by-step explanation:
Look at the two points. Now, look at how the line traveled to get from one point to the other, down two and over two, or -2/2. To simplify, divide by two, which gives you -1/1 or -1
Please help I cant do this
Answer:
Step-by-step explanation:
stop drawing and pay atention and mabe you will get it
Find the value of the sum ∑j=131(6j2−7j+4)
∑
j
=
1
31
(
6
j
2
−
7
j
+
4
)
. Use a summation formula, if possible.
Put the following numbers in order from least to greatest with least at the top and greatest at the bottom.
Answer:
-10.8
-11/2
1/3
4
|-8|
Step-by-step explanation:
-11/2 = -5.5
1/3 = 0.33
|-8| = 8
Use the given data to find the equation of the regression line. Round the final values to three significant digits, if necessary.
= 150.7 – 6.8x
= 140.4 – 6.2x
= –150.7 + 6.8x
= –140.4 + 6.2x
Answer: 150.7
Step-by-step explanation:
i did the math for it
ok so....
the numbers to the code are 0 3 3 8 8
the number is less than 50
the value of the hundredths digit is 10 times the value of the thousandths digit
the value of the ones digit is one-tenth the value of the tens digit
Answer:
300????
Step-by-step explanation:
because you multiply 100 to the number of tens is equal 300 i think
PLEASE HELP
Convert 120 miles traveled in 6 hours to a unit rate. Use the label miles per hour (mph).
Answer: 20/1
Sorry if this wrong I am confident this is right but:
120 divided by six
=
20/1
Step-by-step explanation:
Drawing a ball from a bag without looking is an example of simple random sampling. Which of these actions could affect the FAIRNESS of the outcome of this simple random sample?
A. cable subscribers between the ages of 21 and 40
B. cable subscribers who are parents of children between the ages of 3 and 10
C. children between the ages of 3 and 10
D. children who attend a local elementary school
Jessica purchased a book that was on sale for 12%. The sales tax is 3% key y represent original price of the book write an expression that can be used to determine the final cost of the book.
How do I do this, I don’t need a answer just how to do I it lol
Answer:
What is a sales tax decalculator?
Step 1: take the total price and divide it by one plus the tax rate.
Step 2: multiply the result from step one by the tax rate to get the dollars of tax.
Step 3: subtract the dollars of tax from step 2 from the total price.
Pre-Tax Price = TP – [(TP / (1 + r) x r]
TP = Total Price.
Step-by-step explanation:
The festival prices for each dessert are shown in the banner.
At the end of the festival, there are 24 cannolis, 30 cream puffs, and 62 muffins leftover. How much money did the bakery collect from selling desserts? How much more would the bakery have collected if they sold all of the dessert?
Answer: how much money are the desserts each
Step-by-step explanation:
plz help i have NO clue what this is
Answer:
Bottom right corner
Step-by-step explanation:
The line is going up so the slope is positive!
Answer: its the bottem left
Step-by-step explanation: EASY ITS GOING UP ITS A POSITVE SLOPE
Please help! NO LINKS! (Scientific Notation)
** Only answer if you actually know it, please
6.9 + (-5)+ 4.1=?
Tell me if u go ogled trust me i know that u guys will i will not mark u brainliest if u lie that u di i can scan to see if u plagerized wat im saying is just tell me if u did im not gonna get mad lol i will get mad if u lie u di d it on ur own
Answer:
6
Step-by-step explanation:
pls help me......................................................................................................
Answer:
The first one is y=2, the second y=3
Step-by-step explanation:
Spanish please help I’ll give BRAINLY please fill in the ones that are not filled in
Answer:
What???
Step-by-step explanation:
PLEASE HELP! Please no links
Answer:
4th option
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are in proportion, that is
[tex]\frac{12}{8}[/tex] = [tex]\frac{15}{x-4}[/tex]
19= X+5*Z-12
what is X and Z?
Answer:
X = -5Z + 31
Step-by-step explanation:
Subtract 5Z5Z from both sides.
19 - 5Z = X - 12
19 − 5Z = X − 12
2 Add 1212 to both sides.
19 - 5Z + 12= X
19 − 5Z + 12= X
3 Simplify 19-5Z+1219−5Z+12 to -5Z+31−5Z+31.
-5Z + 31 = X
−5Z + 31 = X
4 Switch sides.
X = -5Z + 31
X = −5Z + 31
Answer:
19=x+5*z-12
19+12=x+5*z
31=x+5*z
then x=26 z=1
Click to see the pic! PLEASE NO LINKS, I CANT EVEN OPEN THEM FOR SOME REASON BUT I NEED AN ANSWER
Answer 75%=0.75
7%= 7/100
75/10=other
3/4=0.75%
0.07=7/100
7.5=other
Step-by-step explanation: hope that helps :))
Done the first two but i dont know how to do the mean of it
To find mean:
1) Add up all data values to get the sum
2) Count the number of values in your data set
3) Divide the sum by the count
First we have to find all the data values. We do this by finding all of the peas, not just the information numbers of peas in a pod.
4 x 2 = 8
5 x 10 = 50
6 x 18 = 108
7 x 14 = 98
8 x 6 = 48
8 + 50 + 108 + 98 + 48 = 312 total number of peas
2 + 10 + 18 + 14 + 6 = 50
312 / 50 = 6.24 peas per pod
So in our example the mean number of peas in a pod is 6.24.
I hope this helps! :)
Make Sense and Persevere
What percent of the 16-gigabyte hard drive show is used for photos?
. |3.32GB|
Music-Photos-Apps-Other-FreeSpace
|-----------------------------------------------------|
16 GB
Step-by-step explanation:
Make Sense and Persevere
What percent of the 16-gigabyte hard drive show is used for photos?
. |3.32GB|
Music-Photos-Apps-Other-FreeSpace
|-----------------------------------------------------|
16 GB
The camping trip cost $165 how much long will it take you to save en ought money? Please give me the answer FAST
Answer:
there is missing information in your question
Step-by-step explanation:
you need to tell us how much money you can make in a day
What is 300,000,000x 4,000,000,000x6,000,000,000x 7,000,000,000x5000,000,000,000 I need help pls
Answer:
2.52 x 10^50
I converted to scientific notation :)
how to stop antixty attack?
i dont know how to spell.
Answer:
to Stop anxiety attract
take a deep breath hold it for some time and then relax your body when exhaling
Don't think Brainly is the place to ask but If your not getting enough sleep, that can be why so make sure to SLEEP and take naps at around 1:00pm and Try to wake up at 3:00pm
Aerobic activity can be calming. Avoid caffeine, alcohol and smoking which act as triggers for the attack. Regular physical activity helps in releasing the anxiety.
Easier ways are to breathe slow and deep breathing is the cornerstone of calm. Start by breathing in and out slowly.
Drink more water. Dehydration may affect anxiety in a variety of ways. And raw fruits and vegetables are the best foods for panic attack because they act as antioxidants in your body.
Can Someone Give Me Graph Points I'm So Confused:
The equation d=rt is used to calculate distance, rate, or time, where d is the distance (in feet), r is the rate (in feet per second), and t is the time (in seconds). Consider the statements below that describe the running rates for three people. Graph the equation that represents the rate of the fastest person.
Payton runs for 20 seconds and goes 380 feet.
Jaime runs at a rate of 20 feet per second.
Nguyen runs 450 feet in 25 seconds.
Answer: 60
Step-by-step explanation:
what is 2 3/5 divided by 2/7
Answer:
9 1/10
Step-by-step explanation:
Charlotte measured the temperature at 7:00 A.M. and again at 3:00 P.M. She placed both measurements on a number line.
How did the temperature change between 7:00 A.M. and 3:00 P.M.?
A. It increased by 3/4 °C.
B. It decreased by 3/4°C. ik there's two that's just what the answers say
C. It increased by 11 and 3/4 °C.
D. It decreased by 11 and 3/4 °C.