The price of a 9-minute phone call is $2.25. What is the price of a 19-minute phone call?
Answers
Answer:
$4.75
Step-by-step explanation:
9/2.25=19/x
cross product
2.25*19=9*x
42.75=9x
x=42.75/9
x=4.75
Related Questions
Hamburger meat sells for $6 for every 3 pounds. If Alicia buys 10 pounds of hamburger meat, how much will she pay hamburger meat sells for $6 for every 3 pounds.
Answers
i need help pleases and thanks
Answers
Answer:
associative
Step-by-step explanation:
hope dis helps
how would the numbers 6870000 appear in scientific notation on a calculator screen
Answers
Answer: D
Step-by-step explanation:
A movie theater has 26 rows of seats with an equal number of seats in each row. The theater can seat a total of 390 people. Solve the equation 26x = 390 to find the number of seats x that are in each row.
Answers
Answer:
15 seats per row or x=15
Step-by-step explanation:
26x = 390
390/26 = 15
PLZ MARK AS BRAINLIEST
Answer:
15
Step-by-step explanation:
26x = 390
26 26
x = 15
The number of people who voted for the Green Party in an election was 1500
The number of people who voted for the Blue Party was 9000.
Write the ratio of Green Party voters to Blue Party voters in its simplest form
Answers
Answer:
1:6
Step-by-step explanation:
1500:9000
=150:900 (divide by ten)
=15:90 (divide by ten)
= 1:6. (divide each number by 15)
FIRST CORRECT ANSWER GETS BRANLIEST !!!!!!!!
Answers
Answer:
4 - 1 = 3
10 - 6 = 4
Step-by-step explanation:
if a number is a natural number, then it is also a whole number inverse
Answers
Answer:
I believe you're learning geometry. Anyways, here are examples of natural numbers: 1, 2, 3... Meanwhile, here are examples of whole numbers: 0, 1, 2, 3... Natural numbers are all the positive whole numbers. Whole numbers are quantities that are both positive and neutral, and don't include any fractions or decimals.
Step-by-step explanation:
Which one is it? I got confused plz help
Answers
Answer:
Red: 2.035 x 10(4)
Step-by-step explanation:
Answer:
Red.
Step-by-step explanation:
Scientific notation consists of the ones place with a decimal right after it and a 10 to the something power next to it, therefore red is your answer.
Mai, Clare, and Noah are making signs to advertise the school dance. It takes Mai 6 minutes to complete a sign, it takes Clare 8 minutes to complete a sign, and it takes Noah 5 minutes to complete a sign. They keep working at the same rate for a half hour.
Answers
Answer:
Mai makes 5 signs
Clare makes 3.75 sings
Noah makes 6 sings
together they make 14.75 sings
Step-by-step explanation:
Erin rolled a number cube with sides labeled 1 through 6. She rolled the number cube 400 times and recorded each result. About how many times could Erin expect to roll a 4?
Answers
Answer:
about 67 times
Step-by-step explanation:
hope this helps :)
Lines a b c and d are shown below. Which lines are parallel? Which line are perpendicular? Explain and jutsify your answer using slopes
Answers
Answer:
Lines A and C are parallel
Lines B and D are perpendicular
Step-by-step explanation:
Given
See attachment for lines A to D
Required
Determine the parallel and perpendicular lines
To start with, we calculate the slope of each line.
Line A
The points on line A are:
[tex](x_1,y_1) = (3,-4)[/tex]
[tex](x_2,y_2) = (-1,2)[/tex]
Calculate the slope (m)
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
[tex]m = \frac{2 - (-4)}{-1 - 3}[/tex]
[tex]m = \frac{2 +4}{-4}[/tex]
[tex]m = \frac{6}{-4}[/tex]
[tex]m_1 = -\frac{3}{2}[/tex]
Line B
[tex](x_1,y_1) = (-1,8)[/tex]
[tex](x_2,y_2) = (2,6)[/tex]
Calculate the slope (m)
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
[tex]m = \frac{6 - 8}{2 -(-1)}[/tex]
[tex]m = \frac{-2}{2 +1}[/tex]
[tex]m_2 = -\frac{2}{3}[/tex]
Line C
[tex]y - 9 = -\frac{3}{2}(x + 8)[/tex]
Open bracket
[tex]y - 9 = -\frac{3}{2}x -\frac{3}{2}* 8[/tex]
[tex]y - 9 = -\frac{3}{2}x -3* 4[/tex]
[tex]y - 9 = -\frac{3}{2}x -12[/tex]
Make y the subject
[tex]y = -\frac{3}{2}x -12+9[/tex]
[tex]y = -\frac{3}{2}x -3[/tex]
The slope intercept of an equation is: [tex]y = mx + b[/tex]
Where
[tex]m = slope[/tex]
By comparison:
[tex]m_3 = -\frac{3}{2}[/tex]
Line D
[tex]12x - 8y = 40[/tex]
Subtract 12x from both sides
[tex]12x-12x - 8y = -12x+40[/tex]
[tex]- 8y = -12x+40[/tex]
Divide through by -8
[tex]\frac{- 8y}{-8} = \frac{-12x}{-8}+\frac{40}{-8}[/tex]
[tex]y= \frac{12x}{8}-\frac{40}{8}[/tex]
[tex]y= \frac{3}{2}x-5[/tex]
The slope intercept of an equation is: [tex]y = mx + b[/tex]
Where
[tex]m = slope[/tex]
By comparison:
[tex]m_4 = \frac{3}{2}[/tex]
So, the slopes of the lines are:
[tex]m_1 = -\frac{3}{2}[/tex] [tex]m_2 = -\frac{2}{3}[/tex] [tex]m_3 = -\frac{3}{2}[/tex] [tex]m_4 = \frac{3}{2}[/tex]
Lines with the same slope are parallel.
So:
Lines A and C with slope of [tex]-\frac{3}{2}[/tex] are parallel
Lines with the following relationship are perpendicular:
[tex]m * M = -1[/tex]
Lines B and D are perpendicular because:
[tex]-\frac{2}{3} * \frac{3}{2} = -1[/tex]
[tex]-\frac{6}{6} = -1[/tex]
[tex]-1 = -1[/tex]
Pls help me someone!!!
Answers
Answer:
n^2(radical)7
Step-by-step explanation:
You have to find the square root of all the components separately. 7 is not a perfect square (one number*itself = perfect square, ex 4 is the perfect square of 2 because 2*2=4) but the n^4 can be simplified and brought outside of the radical. When finding the square root of variables with exponents they have to come out in pairs to create that "perfect square." Therefore when you move a variable, you basically divide the exponent by 2. so n^4 inside the radical becomes n^2 outside of the radical, leaving the problem itself to become n^2 (radical) 7.
8/9 divided by 5? :’)
Answers
Answer:
8/45 or 0.177...... (the seven continues forever).
Step-by-step explanation:
8/9 ÷ 5
First, turn 5 into a fraction. That will be 5/1
8/9 ÷ 5/1
When you're dividing fractions, you flip the second fraction and turn the division sign to a mutiplication sign
8/9 ÷ 1/5
8/9 * 1/5
Now you multiply. We will multiply the numerator and then the denominators through since there are no common factors.
8 * 1/9 * 5
8/45
1. Evaluate each algebraic expression.
c. 3b - 5
for b = -2
for b = 3
for b = 9
I need the answer
Answers
Answer:
-11, 4, and 22
Step-by-step explanation:
Expression: 3b-5
when b=-2
Expression: 3(-2)-5=-11
When b=3
Expre; 3(3)-5=4
When b=9
Expre; 3(9)-5=22
Nathaniel is going to invest $76,000 and leave it in an account for 18 years. Assuming the interest is compounded continuously, what interest rate, to the nearest tenth of a percent, would be required in order for Nathaniel to end up with $100,000?
Answers
Answer:
did you ever get the answer bc I have this and need help pls and thank you
Step-by-step explanation:
Answer:
Step-by-step explanation:
1.5%
Easy.
Find the area of the figure.
Answers
Answer:
i DONT KNOW
Step-by-step explanation:
I need help on this question
Answers
Answer:
D
Step-by-step explanation:
"Wake up to reality. Nothing ever goes as planned in this world. The longer you live,the more you realize that only pain, suffering and futility in this reality"- madara uchiha
what does this quote mean to you?
Answers
Answer:
The world isn't as cute as it is in cartoons.
Step-by-step explanation:
I feel like it means that we need to start realizing that the world isn't as sugarcoated as our parents tell us.
The older you get you'll realize that.
Answer:
My pain and suffering...
Step-by-step explanation:
60PTSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS HELP IMA FAIL
1.Which recursive formula fits the following pattern?
50, 25, 12.5, 6.25, 3.125...
A(n+1) = A(n) ÷ 2, A(1) = 50
A(n+1) = A(n) − 2, A(1) = 50
A(n+1) = A(n) ÷ 50, A(1) = 50
A(n+1) = A(n) − 50,A(1) = 50
2.
What does a7 mean?
3.
Write a Recursive and Explicit Sequence for the following pattern.
1, 5, 9, 13, 17...
4.What are the first 5 terms in the following recursive sequence?
A(n+1) = A(n) × 3 A(1) = 2
5.
Which Explicit formula would fit this pattern?
3,7,11,15,19...
*Remember, you can check by plugging in the term numbers to see if you get the correct output*
Answers
1. Answer:
i dont know
Step-by-step explanation:
they didnt teach me this
2. Answer:
a7 means what ever a is you have to multiply it by 7
Step-by-step explanation:
When ever you see a letter infornt or followed by a number you always multiply it by the number.
3. Answer:
1, 5, 9, 13, 17, 21, 25, 29, 33, ect.
Step-by-step explanation:
Just keep adding four
5. Answer:
3, 7, 11, 15, 19, 23, 27, 31, ect.
Step-by-step explanation:
Just keep adding four
Answer:
1) A(n+1) = A(n) ÷ 2, A(1) = 50
2) 7 multiplied by a.
3) 1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, .... (add 4 each time)
4) A(n+1)=A(n) x 3A(1)=2
2, 5, 8, 11, 14
5) 3, 7, 11, 15, 19,... A(n+1)=A(n)+4, A(1)=3
Step-by-step explanation:
Solve the equation.
5x = 16
Solve for x
Answers
Answer:
x=3.2
x=15/6
x=3 1/5
es que necesito para diagnostico
Question 1 (25 points)
An isosceles triangle has a base 8.8 units long. If the congruent side lengths have measures to the first decimal place, what is
the shortest possible length of the sides?
4.5
8.9
4.3
Od
17.7
b
С
Answers
Answer:
4.5
Step-by-step explanation:
For any triangle, the basic principle for these types of problems is that the sum of the 2 shorter sides has to be greater than the longest side, otherwise it is not a triangle, even if it's equal to the longest side.
So, let's look at the first option. 4.5. Since this is an isosceles triangle and the base is 8.8 units, the other side has to be 4.5 as well. 4.5+4.5=9. 9 > 8.8. So, we can immediately eliminate options 8.9 and 17.7. What about 4.3? Well, 4.3+4.3= 8.6, but 8.6 < 8.8, so 8.6 is wrong. So, the answer is 4.5.
If the side of every square is 2 centimeters, how many centimeters is the circumfence of the figure?
*if you cant see the photo, click on it*
Answers
Answer:
76 cmStep-by-step explanation:
[tex]|FE| = |CB| = 4\cdot2=8\,cm\\\\|ED|=|DC|= \sqrt{(3\cdot2)^2+(4\cdot2)^2}= \sqrt{6^2+8^2}=\sqrt{100}=10\,cm\\\\|FA|=|AB|= \sqrt{(6\cdot2)^2+(8\cdot2)^2}= \sqrt{144+256}=\sqrt{400}=20\,cm\\\\\\Circumference = FE+ED+DC+CA+AB+FA\\\\Circumference =8+10+10+8+20+20=76\,cm[/tex]
Im struggling in math rn and i need help with this problem 3 1/4 = 1/2 + w
Answers
Answer:
w= 2 3/4
Step-by-step explanation:
First, we need to find what can equal w. So, we can subtract 1/2 form both sides, so one sides has just w and one side has just a number. 3 1/4-1/2= 2 3/4. So w= 2 3/4
Answer:
2 3/4
Step-by-step explanation:
3 1/4 = 1/2 + w
Transfer 1/2 to other side
3 1/4 - 1/2 = w
Solve
w = 2 3/4
Hope this helps!! Please give Brainliest!!
The trend line passes through (10,9) and (35,0). Write an equation for the trend line.
Answers
Answer: Solution :
Step 1 :
Make a scatter plot of Lily’s running data.
Step 2 :
To draw a trend line, use a straight edge to draw a line that has about the same number of points above and below it. Ignore any outliers.
Step 3 :
Find the slope of the trend line.
The line passes through points (2, 20) and (4.5, 45).
Use the slope formula.
m = (y2 - y1) / (x2 - x1)
Substitute x1, = 2, y1 = 20, x2 = 4, and y2 = 45.
m = (45 - 20) / (4.5 - 2)
m = 25 / 2.5
m = 10
Step 4 :
Find the y-intercept of the trend line.
Slope-intercept form equation of a line :
y = mx + b
Plug y = 20, m = 10 and x = 2.
20 = 10 · 2 + b
20 = 20 + b
Subtract 20 from both sides.
0 = b
Step 5 :
Use your slope and y-intercept values to write the equation.
Slope-intercept form equation of a line :
y = 10x + 0
So, the equation for the trend line is
y = 10x
Example 2 :
David records the number of chapters and the total number of pages for several books as given below.
No. of chapters
3
4
5
8
10
11
15
17
19
No. of pages
20
44
50
95
90
130
125
170
160
Step-by-step explanation:
Simplify the following expression:
(2a - 3) + (-a + 5)
PLEASE HELP ME
Answers
Answer:
(a+2)
Soo you could solve by removing the parenthesis, then combining all like terms. Then subtract.
Or a+2
What's the additive inverse of - 1/4
Answers
Answer:
+ 1/4
Explanation:
Additive inverses are numbers that equal 0 when added together.
-1/4 + (+1/4) =
-1/4 + 1/4 = 0
Find the surface area of the figure shown. The surface area of the figure is
5.1 ft
4 ft
2 ft
8.2 ft
Answers
Last week, Naomi set a new personal record for running the mile. She beat her previous record by 14 seconds. The time change from her previous record can be represented by ________.
A. Zero
B. A negative rational number
C. A positive rational number
Answers
Answer:
negitive :)
Step-by-step explanation:
Find a positive and a negative coterminal angle for 50 degrees
Answers
Answer: To find the coterminal angle of a 50° angle, add 360°. It would follow that 50°+360°=410°. A 410° angle is illustrated below. From the graphical representation of the angle, we can conclude that these two angles do indeed share the same terminal side, meaning they are coterminal.
Step-by-step explanation:
The positive and negative coterminal angle for 50 degrees are 410 degrees and -310 degrees respectively.
What is coterminal angle?'Coterminal angles are the angles that have the same initial side and share the terminal sides.'
According to the given problem,
To find positive coterminal angle, we have to add 360 degrees to it,
⇒ 50 + 360 = 410 degrees.
To find negative co terminal angle, we have to subtract 360 degrees from it,
⇒ 50 - 360 = -310 degrees.
Hence, we can conclude that 410 degrees and -310 degrees are the coterminal angle for 50 degrees.
Learn more about coterminal angle here: https://brainly.com/question/23141159
#SPJ2
Finding missing angles please help!!! pls
Answers
Answer:
x = 15
Step-by-step explanation:
Answer:
45
Step-by-step explanation: