Step-by-step explanation:
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ALGEBRA 1
Christina B. asked • 11/16/20
please help me i've been stuck on this question forever
Write a system of equations to describe the situation below, solve, and write as an ordered pair (with number of months as x). Two friends, Ann and Malia, are growing out their hair. They plan to cut it off at a certain point and donate it to a charity that makes wigs for people with cancer. Ann's hair is already 23 centimeters long and grows at a constant rate of 3 centimeters per month. Malia's hair is 27 centimeters and growing at a speed of 1 centimeter per month. If the girls get their hair cut on a certain day, they will have exactly the same length to donate. How long will their hair be? How long will that take?
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Allen E. answered • 11/17/20
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Ann's hair length: y = 23 + 3x
Malia's hair length: y = 27 + x
Thus: 23 + 3x = 27 + x
23 + 2x = 27
2x = 4
x = 2
Ann's hair length: y = 23 + 2(3) = 29
Malia's Hair length: y = 27 + 2 = 29
Solution: (x, y) = (2, 29)
In 2 months both Ann's and Malia's hair will be 29 centimeters long.
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Erykah H. answered • 11/16/20
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Senior at the University of Illinois looking to help how I can!
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Lauren W. answered • 11/16/20
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Let's start with Ann's hair: 23 centimeters + 3 centimeters per month
Malia's hair: 27 centimeters + 1 centimeter per month
Now we can substitute the number of months for "x"
Ann's hair length = 23 + 3x
Malia's hair length = 27 +1x
We know that we want both girls to have the same hair length at the end so we can set these two equations as equal to each other:
23 + 3x = 27 + 1x Subtract 23 from both sides
3x = 4 + 1x Subtract 1x from both sides
2x = 4 Divide by 2
x=2 Now we know it will take 2 months for their hair to be the same length!
Let's plug that in to our original equations:
Ann's hair length = 23 + 3(2) = 29 centimeters
Malia's hair = 27 + 1(2) = 29 centimeters
It will take 2 months for the girls to grow their hair to the same length of 29 centimeters.
As ordered pairs, with x as the number of months, we can use the length of the girls hair as the y value.
At 0 months, Ann's hair is 23 cm and Malia's is 27 cm so the first ordered pairs are (0, 23) and (0, 27).
At 1 month, Ann's hair grows 3 cm and Malia's grows 1 cm so the second pairs are (1, 26) and (1, 28).
Finally, at 2 months Ann's hair is at 29 cm and so is Malia's so the final ordered pair is (2, 29) for both girls.
If you were to draw these equations on a graph, (2, 29) is where the lines would intersect.
Help! Due soon! :) help me out and get some points
Answer:
15
Step-by-step explanation:
Answer:
Option C
explanation:
Substitute in 11 to get -4+55=18+33. 51=51 is a correct statement.
What is the measurement of
What is the X intercept, Y intercept, equation and slope of (-9,0), (0,3)
Answer: x= -9 y= 3
Step-by-step explanation:
How many solutions does the following equation have?
4(5 - 2v) =4 - 8(v-2)
2)
(A) 1 solution
(B) No solutions
(C) Infinite Solutions
solve for x. 3(x- 4)=15x
Answer:
x=-1
Step-by-step explanation:
3(x−4)=15x
Use the distributive property to multiply 3 by x−4.
3x−12=15x
Subtract 15x from both sides.
3x−12−15x=0
Combine 3x and −15x to get −12x.
−12x−12=0
Add 12 to both sides. Anything plus zero gives itself.
−12x=12
Divide both sides by −12.
x=
−12
12
Divide 12 by −12 to get −1.
x=−1
Answer:
[tex]3(x- 4)=15x[/tex]
[tex]3x-12=15x[/tex]
[tex]3x-12+12=15x+12[/tex]
[tex]3x=15x+12[/tex]
[tex]3x-15x=15x+12-15x[/tex]
[tex]-12x=12[/tex]
[tex]\frac{-12x}{-12}=\frac{12}{-12}[/tex]
[tex]x=-1[/tex]
What is 72 Divided by 2= ??
Answer:
72 / 2 = 36
Step-by-step explanation:
Look at 7 first and figure out how many times 2 will go into 7. 2 will only go into 7 three times. (2 x 3= 6) So put 3 at the top of your division problem and subtract 6 from 7. You should get 1. Then, bring down your 2 to make that one a 12. How many times will 2 go into 12? 6 times. 6 x 2 equals 12 so put 6 at the top of your division problem next to that 3. Subtract your 12 from 12 to get 0. Your final answer would be 36.
Hope this helped!
The division of 72 and 2 is 36.
What is the division?The division is one of the basic arithmetic operations in math in which a larger number is broken down into smaller groups having the same number of items.
The given numbers are 72 and 2.
72 divided by 2
Here, 72/2
Where, 72 is dividend and 2 is divisor.
72/2 = 36
So, quotient is 36
Therefore, the division of 72 and 2 is 36.
To learn more about the division visit:
brainly.com/question/1575906.
#SPJ5
I need help please
Answer: SAS
Explanation: There are two sides that are congruent and there is one vertical angle between them which are always congruent.
Geometry - Unit 4 - Lesson 8
Answer:
Ok
Step-by-step explanation:
Ok
If f(x) = 4x+7 and g left parenthesis x right parenthesis space equals fraction numerator 1 over denominator 2 x end fraction w h a t space i s space t h e space v a l u e space o f space left parenthesis f over g right parenthesis left parenthesis 5 right parenthesis ?
Answer:
270
Step-by-step explanation:
its on my test this is the right answer
A shop sells flower fertiliser in 25kg bags and in 50kg bags.
One week, the shop has two special offers for the fertiliser.
Offer A:
Offer B:
25 kg
50 kg
2 bags for £35
3 bags for £92.50
Which offer (A or B) is the best value for money?
You must show how you get your answer.
Offer A is correct sir
Step-by-step explanation:
!
(ANSWER ASAP) i really need this done by tomorrow
Answer:
answer is 2
Step-by-step explanation:
5 - 1 / -5 - (-3)
4/2
2
Answer:
The correct answer would be 2
Step-by-step explanation:
For the problems 29-32, use () 5 6 fx x =+ and 2 () gx x x =+ .
Answer:
AZSXDCFVGBHNUIJMO,
Step-by-step explanation:
XECRVTBYNUMI,OP.[
16 points, Brainllest, a heart, and stars! First place gets brainllest, five stars and a heart! Second place gets 4 stars and a heart! (You only get it if you get it right )!
Write the percent as a fraction in simplest form and as a decimal. 16.24%
The fraction is
The decimal is
Answer:
Umm ty!
Step-by-step explanation:
Answer:
Fraction is: 203/1250
Decimal is: 0.1624
Step-by-step explanation:
Thank you for the points! Please mark this as brainliest! :)
What is the total surface area of the jewelry box?
22 square feet
10 square feet
14 square feet
6 square feet
Wil has a coin collection and is currently adding 9 coins per day to his existing number of coins in his collection.After 22 days he has a total of 218 coins. How many coins will he have after 36 days?
Answer:
344
Step-by-step explanation:
Number of coins added per day in the collection = 9
Number of coins in the collection after 22 days = 218
To find:
Number of coins in the collection after 36 days.
Solution:
First of all, let us find how many coins did he have initially.
Let the number of coins present initially with Wil = [tex]x[/tex]
Number of coins added per day = 9
Number of coins added after 22 days = 22 [tex]\times[/tex] 9 = 198
Therefore,
[tex]x + 198 = 218\\\Rightarrow x = \bold{20}[/tex]
Number of coins present with Wil initially = 20
Number of coins added after 36 days = 36 [tex]\times[/tex] 9 = 324
Total number of coins after 36 days = Number of coins present initially with Will + Number of coins added = 324 + 20 = 344
What is the mistake PLEASE HELP
3-(-2) -5
1 - 5
-4
Answer:
your answer would be 0
Step-by-step explanation:
3-(-2)-5
3+2-5
5-5
0
3/5 divided by what makes 3/10
I will make it the brain lieset answer
Answer:
5
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
We will use the KFC method to figure out the answer:
3/5 ÷ 2/1
We keep the first fraction
3/5 ÷ 2/1
Flip the last fraction (swap the numbers)
3/5 ÷ 1/2
Change the sign (to a multiplication symbol)
3/5 x 1/2
Then, finally, to solve for the answer, we multiply across (3 x 1 and 5 x 2).
3 x 1 = 3
5 x 2 = 10
The answer is 3/10 because it cannot be simplified any further.
≧◡≦
Mocha here! If this answer helped you, please consider giving it brainliest because I would appreciate it greatly. Have a wonderful day!
Helpplll!!!:.me outttt
Answer:
Not a function
Step-by-step explanation:
Do the vertical line test. If the line only goes through a point once it's a function. If it goes through more that once it is not a function.
Hope this helps!!
Given the points (2, 4) & (-1,-5), what is the equation of the line?
Answer:
y =1 /3 x + 14 /3
Step-by-step explanation:
WILL MARK BRANLIEST IF GOTTEN RIGHT
Answer:
1. Angles 2 and 5.
Step-by-step explanation:
Vertical angles are the angles that are opposite each other when two straight lines intersect.
Answer:
angle 2 and angle 5
Step-by-step explanation:
need help math question
My answer is 8 . Please check the answer.
While taking a ride in a hot-air-balloon in Napa Valley, Francisco wonders how high he is. To find
out, he chooses a landmark on the ground that is to the east of the balloon and measures the angle of
depression to be 54°. A few minutes later, after the balloon floats horizontally 100 feet east, closer to the
landmark, the angle of depression to the same landmark is determined to be 61°. Determine the height h
of the balloon. Round your answer to the nearest tenth.
a) Find the measures of ∠1, ∠2, ∠3 and ∠4:
∠1 = ________ ∠2 = ________
∠3 = ________ ∠4 = ________
b) Solve for the height of the balloon, h. You may use any
appropriate method but must show your work!
Answer:
uttujtjtjtjtjjtjtjtjjttjjtjtjtjtjjt
HELP ASAP
Betsy cut up 5 apples to make a pie. In total there were 35 apple seeds. On average, how many seeds were there per apple?
Answer:
7
Step-by-step explanation:
The equation C=54d+ 20 can be used to find the cost, c, in dollars, of renting
a car for a certain number of days, d. What is the rate of change of the cost in
dollars with respect to the number of days?
A.30
A $2.70 per day
B
$20.00 per day
с
$54.00 per day
D$74.00 per day
Answer:
C. $54.00 per day.
Step-by-step explanation:
54 is the amount you will pay every day so the rate of change will be $54.00 per day.
What is the average rate of change of the function f(x)=x2 on the interval from x=2 to x =4
12.
10
6
2
which number line show the solution of 2x - 8 > -4
Answer:
x=2
Step-by-step explanation:
A cone is 10 inches tall and has a radius of 3 inches. What is the cone's volume?
O 314 cubic inches
942 cubic inches
2026 cubic inches
O 847 8 cubic inches
PLEASE HELP
Write the equation of the line that is perpendicular to y = 3x - r and that has the same y - intercept .
WILL MARK BRAINLIEST
Answer:
y= -(1/3)x -r
Step-by-step explanation:
a perpendicular line has the slope of the line that it's perpendicular but its the negative reciprocal of it. So for ex: line 1 = 2x then the line perpendicular to it is -1/2x.
In this case, the slope is 3x. The line perpendicular to it therefore, should be -1/3x.
The problem states the line has the same y-intercept so it has to still be -r.
So the equation of the line perpendicular to y=3x-r with the same y-intercept is y=-(1/3)x -r
Carol harvests berries in the forests of Washington and then sells them to local restaurant chefs. The value of the berries depends on their weight. Which is the dependent variable?
9514 1404 393
Answer:
value of the berries
Step-by-step explanation:
The statement "value of the berries depends on ..." means the dependent variable is "value of the berries."
WILL GIVE BRAINLY TO FIRST
Question 5 of 17
Which steps show how to use the distributive property to evaluate9 - 67?
O A. 9(67) = 9(70 - 3) = 9 . 70 +9-3 = 630 + 27 = 657
O B. 9(67) = 9(70
OC. 9(67) = 9(70 – 3) =9 .70 – 3 = 630 - 3 = 627
OD. 9(67) = 9(70– 3) = 9.70- 70 3 = 630 - 210 = 420
3) =9.70 -93= 630 -27 = 603
