Answer:
B. 10
Step-by-step explanation:
Addition. use you finger and try to count like that. :)
Barrel A and Barrel B are the same size. Barrel A is filled with a solution that is 12% ethanol. The portion of ethanol in the solution that fills Barrel B is 0.3. How many times more ethanol is in Barrel B than Barrel A???? id k
Answer:
the answer is 12 because it sythsizes from the other part of the problem
Step-by-step explanation:
the average screen time for middle school students is 240 minutes per day. In 2020 students went into virtual learning and the average screen time is 70 percent longer. What is the total percent of screen time this year?
Answer:408=screen time
Step-by-step explanation:240+168 70%=168
make sure to like with the heart
Answer:
I believe 408 minutes a day
Step-by-step explanation:
So, I have my own method which is to divide the whole (in this case, 240) by 10 and multiply by whatever percent you have to multiply by and you add it to the whole.
ex.
240/10 = 24
24x7=168
240+168= 408
to do with 100s like 73% then divide the whole by 100 :)
Divide. Enter the quotient in simplest form.
9/10 divided by 3/8
please help!! i'll give you brainliest, 5 stars, and a thanks
Answer:
2.25 I think
Step-by-step explanation:
Answer:
to find the answer out you need to find out 2/3 of $4.50 and to do that divide it by three. once you have figured that out multiply it by 2 and you will get your answer
Step-by-step explanation:
see above
a line has a y-intercept of 0 and a slope of 7/11 what is the equation in slope-intercept form
Answer:
y = 7/11x
Step-by-step explanation:
I need this done by tonight!
Solve the system of equations
-3x+2y=-6
5x-2y=18
Please help me
Answer:
the answer is (x,y) = (6,6)
Step-by-step explanation:
1) first solve the equation for 2y
you should've gotten:
2y = -6 + 3x
5x - 2y = 18
2) substitute the value of 2y into the equation
5x - 2y = 18
so, 5x -(-6 + 3x) = 18
3) now solve 5x -(-6 + 3x) = 18
4) from that solving that equation, u should've gotten x = 6
5) now plug in 6 for x in the other equation, solve for y
( • stands for multiplication if u didn't know, we use this in higher levels of math so multiplication symbols and x variables aren't confused)
5 • 6 - 2y = 18
6) after solving for y in the previous equation, u should've gotten y = 6
7) now we know that x = 6 and y = 6, however it is always important to check if ur answer is correct by plugging in the x value y values u ended up with into the original system of equations.
checking ur work would look something like this:
2(6) = -6 + 3(6)
5(6) - 2(6) = 18
hope this helps <3
Combine the like terms to create an equivalent expression:
-4p+(-6p)
Answer:
-10p
Step-by-step explanation:
-4 - 6 = -10
-10
Step-by-step explanation:
combine like terms to create an equivalent
what u think answer
The temperature at 3 a.m. was 3 1/2 degrees Fahrenheit. For the next 7 hours, the
change in temperature was 1 1/2 degrees per hour. Which statement correctly
interprets this situation? *
The equation 7(-1 1/2) = -10 1/2 means that the temperature at 10 am, was-10 1/2
degrees Fahrenheit.
The equation 7(-1 1/2) = -10 1/2 means that the temperature change from 3 a.m. to
10 a.m. was -10 1/2 degrees Fahrenheit.
The equation 7(-1 1/2) = 10 1/2 means that the temperature at 10 a.m. was 10 1/2
degrees Fahrenheit
The equation 7(-1 1/2) = 10 1/2 means that the temperature change from 3 a.m. to 10
a.m. was 10 1/2 degrees Fahrenheit.
My
Answer:
The equation 7(-1 1/2) = -10 1/2 means that the temperature change from 3 a.m. to 10 a.m. was -10 1/2 degrees
Step-by-step explanation:
Initially, the temperature was 3 1/2 degrees Fahrenheit at 3 a.m. From 3 a.m., the temperature change at 1 1/2 degrees per hour for the next 7 hours. This means that the temperature change in the next 7 hours is:
Temperature change = 7(-1 1/2) = -10 1/2
In the next 7 hours from 3 a.m. to 10 a.m., that is at 10 a.m. (3 a.m. + 7 hours), the temperature change was -10 1/2 degrees Fahrenheit.
Hence:
The equation 7(-1 1/2) = -10 1/2 means that the temperature change from 3 a.m. to 10 a.m. was -10 1/2 degrees
Evaluate (6.1 x 10-3) (8 x 109). Write your answer in scientific notation and standard form.
Scientific Notation:
Standard Form:
Answer:
Scientific Notation: 4.88 ×10^7
Standard Form: 4.88 ×10^7
Step-by-step explanation:
6.1×10^(-3) = 0.0061
8×10^9 = 8000000000
0.0061×8000000000 = 48800000
[tex] = 4.88 \times {10}^{7} [/tex]
Martin has a vegetable garden that is 8 feet long and 5 feet wide. Next year, Martin wants to increase both the length and width of his vegetable garden by 15%. By what percent will the area of Martin’s vegetable garden increase with these changes?
Answer:
9.2 feet long and 5.75 feet wide
A colony of bacteria starts out with 175 cells and they double every hour write an equation that models the number of cells y after x hours
Answer:
200
Step-by-step explanation:
Which equation is equivalent to StartRoot x squared + 81 EndRoot = x + 10? x + 9 = x + 10 x + 9 = x2 + 20x + 100 x2 + 81 = x2 + 100 x2 + 81 = x2 + 20x + 100
Answer:
D on edge
Step-by-step explanation:
I got several quiz checks
Answer:
D) x2 + 81 = x2 + 20x + 100
Step-by-step explanation:
g(x) = (x +9)(x + 8)
1) What are the zeros of the function?
Write the smaller x first, and the larger x second.
smaller x =
larger x =
2) What is the vertex of the parabola?
Answer:
Step-by-step explanation:
smaller x = -9
larger x = -8
vertex =
(-17/2, -1/4)
What is the total area of the figure below?
Answer:
141
Step-by-step explanation:
First find the area of the trapezoid
(16 + 10) * 9 / 2 = 117
Then find the area of the triangle
0.5 * b * 6 = 24
Add them both together
117 + 24 = 141
Answer: 141
GIVE ME BRAINLEST
Step-by-step explanation:
3 people can deliver 1000 letters in 30 minutes.
How long would it take 1 person to deliver all 1000 letters?
If there are 5 people delivering would it take more or less time?
How long will take 5 people to deliver 1000 letters?
Answer: It would take 1 hour and 30 minutes for one people do it.
If 5 people do it would take less time. If there are 5 people delivering the letters it would take them 12 minutes ti deliver all 1,000 letters.
what is 3,100,000,000 times 7
Answer:
21700000000
Hope this helps.
21700000000
Good luck!
Clara and Ben each have a rock collection. • The number of rocks in Clara's collection can be represented by, • The number of rocks in Ben's collection is 4 times the number of rocks in Clara's collection. • The total number of rocks in both collections is 225. What is x, the number of rocks in Clara's collection?
Answer:
ASD
Step-by-step explanation:
2.(-3)-4-5.(-2) cevabı nedir acil hatalı oldursa bildirilem!!!
Answer:
2.-3=-6
-5.-2=10
-6-4+10=0
The ratio of boys to girls in Ella's class is 3 to 4. The ratio of boys to girls in Minh's class is 4 to 5. Each class has a total of 20 girls. How many boys are in each class? *
Answer:
15 and 16
Step-by-step explanation:
i hop it helps
There are 15 boys in Ella's class and 16 boys in Minh's class.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
Given, The ratio of boys to girls in Ella's class is 3 to 4. The ratio of boys to girls in Minh's class is 4 to 5.
Each class has a total of 20 girls and assuming each class has a total of x students.
∴ 4x/7 = 20.
4x = 140.
x = 35.
No. of boys = 15.
5x/9 = 20.
5x = 180.
x = 36.
No. of boys = 16.
learn more about proportion here :
https://brainly.com/question/7096655
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What is 9/2 × 20/3 × 9/4?
Answer:
67.5
Step-by-step explanation:
4.5 times 6.66 times 2.25 will be 67.5
10. A jar contains dimes and quarters. There are 15 more quarters than dimes. The coins total $23. How many
of each coin is in the jar?
What is this question asking you?
Dimes
Quarters
Number of Dimes:
Number of Quarters:
Answer:
dimes:$8 quarters:$15
Step-by-step explanation:
im still in 6th grade
Answer:
55 dimes and 70 quarters
Step-by-step explanation:
Using a simple strategy of guess and check we know that the quarters will always be 15 more than dimes. From this we know it has to be around the 50s as 40s would bring us numbers too low and 60s too high. 55 happens to be answer for dimes as that brings in $5.50. 23-5.5=17.5 multiply that by 4 as each quarter is only valued at $0.25 you get the answer 70 which just so happens to meet the requirements of being 15 more than 55.
What’s the answer for 24=3(n-5
Answer:
n=13
Step-by-step explanation:
isolate the variable by dividing each sides by factors that don't contain variables.
identify the diameter of Q given that a= 169 pie in2
Answer:
the diameter will be D=26 in.
Step-by-step explanation:
The area of a circle is given by:
[tex]A=\pi R^{2}[/tex] (1)
Where:
A is the areaR is the radius of the circleNow, we know that A = 169 π in²
So, we just need to use equation 1 to find R.
[tex]169\pi = \pi R^{2}[/tex]
[tex]R=\sqrt{169}[/tex]
[tex]R=13 \: in[/tex]
Therefore, the diameter will be D=2*R=26 in.
I hope it helps you!
The diameter of the circle is 26 inches
The area of the circle is given as:
[tex]A = 169\pi[/tex]
The area of a circle is calculated as:
[tex]A = \pi r^2[/tex]
By comparison, we have:
[tex]\pi r^2 = 169\pi[/tex]
Divide both sides of the equation by pi
[tex]r^2 = 169[/tex]
Take the positive square roots of both sides
[tex]r = 13[/tex]
Multiply by 2, to calculate the diameter
[tex]d =2 * 13[/tex]
[tex]d = 26[/tex]
Hence, the diameter of the circle is 26 inches
Read more about diameter at:
https://brainly.com/question/15673093
Determine the amount that should go in the blank in the sentence below.Explain
why.
Jamie needs to sell more thanelectronic devices each month.
th.
In the box below, type the sentence above with the correct number in the blank
AND explain why it must be more than that number
Plz hurry
Answer: 27444444444444444
Step-by-step
click here
I need help with this
How many times does 4 go into 7
Answer:
once
Step-by-step explanation:
Answer:1.75
ep-by-step explanation:7 divided by 4=1.75
they want you to solve for n
Answer:
the answer will be
n< 80
Step-by-step explanation:
can 2 2/3 be simplified
Answer:
2 and 2/3 is the simplest form
Step-by-step explanation:
2 and 2/3 is the simplest form. Other forms are listed below.
A mixed number is an addition of its whole and fractional parts.
Addition 2 + 2/3
Improper Fraction: 8/3
Decimal Form: 2.(6 recurring)
Mixed Number Form: 2 and 2/3
what is the point-slope form of the equation of the line ?
slope equals 5 passing through (3,7)
Answer:
y-7=5(x-3)
Step-by-step explanation:
y-y1=m(x-x1)
y-7=5(x-3)