Find each percent of change. Round to the nearest whole percent if necessary. State whether the percent of change is an increase or a decrease.
4. 125 centimeters to 87.5 centimeters
Answer:
decrease
Step-by-step explanation:
I am thinking of a number. I multiplied this number by 3, subtracted 8, and doubled the result, then added 14. Then I added on 50% of what I had, and then added on 11. Then I divided by 5. After all that, I was left with 8. What number did I start with?
Answer:
yea what
106998luna said
Step-by-step explanation:
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The number that was started with is 32/9.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Let the number be x.
I am thinking of a number. I multiplied this number by 3, subtracted 8, and doubled the result, then added 14.
First part:
2(3x - 8) + 14
6x - 16 + 14
6x - 2
Then I added 50% of what I had and then added 11.
Second part:
(6x - 2) + 50/100 (6x - 2) + 11
6x - 2 + 3x - 1 + 11
9x + 8
Then I divided by 5. After all that, I was left with 8.
Third part:
(9x + 8) / 5 = 8
9x + 8 = 40
Subtract 8 on both sides.
9x = 40 - 8
9x = 32
Divide both sides by 9.
x = 32/9
Thus,
The number that was started with is 32/9.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ2
Use elimination to solve the system 5x + 4y = -10 and 3x + 6y = -6 for y. Please show work!!! Will give brainliest!!!
Answer:
y=-5/2-5x/4 and y= -1-x/2
Step-by-step explanation:
Heath wants to form a triangle using a piece of wire that is 40 centimeters long. If Heath uses the entire piece of wire, which could be the side lengths of his triangle?
There are fifteen shirts in your closet ,eight blue and seven green. You randomly select one to wear on Monday and then a different one on Tuesday. You wear a blue shirt on Monday and a green shirt on Tuesday.
1/36, 4/15, 25/546, 10/11 U WILL GET BRAINLIEST
Answer:
4/15
Step-by-step explanation:
Use commutative property to create an equivalent expression. 4(9j + 1 + 6j) Show you work please!
Find the value of X?
A.90 cm
B.40 cm
C.46 cm
D.9 cm
Answer:
D. 9 cm
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
You need to find the proportion so find two corresponding sides and divide them
32/16= 2 and or 40/20= 2
Then find x with the following equation
18= 2x
x=9
Plz help! Don’t answer if you don’t know
Answers i can't see the numbers but i think it is 30 or 50
HELP ME PLS !! The figure below has a point marked with a large dot. First, translate the figure 8 units to the left and 6 units up. Then, give the coordinates of the marked point in the original figure and the final figure.
Answer:
Original Figure: (-4 ,-8)
The Point in the final figure (1, -2)
Step-by-step explanation:
A small bag has 8 black beans, 5 white beans, and 12 red beans. Find the probability of picking a red then a black bean if you do not replace the first bean.
A. 0.16
B. 0.32
C. 0.3
D. 0.5
Answer:
the answer is A
Step-by-step explanation:
because 8 divided by 25 (all the beans) is .32
And 12 divided by 25 is .48
So if you subtract .48 by .32 then you get .16
let me know if its right
Please help if you can. If possible please type how you got the answer so I can remember it next time I have a question like this.
Answer: the image doesnt show
Step-by-step explanation:
Which of the following ratios are equivalent to 9:12? HINT: turn them into fractions and cross multiply to check!
3:4
2:3
6:9
Answer:
3:4
Step-by-step explanation:
3/4 * 3/3=9/12
SMART PEOPLE PLEASE HELP ME !!!!!!!!!!!!!!!!
Answer:
B and D
Step-by-step explanation:
helppp PLS
1.A rectangular prism is 20 inches long, 10 inches wide, and 15 inches high. What is the volume of the prism?
A. 2000 cubic inches
b. 3000 square inches
c. 3000 cubic inches
d. 45 cubic inches
2.Find the volume of a rectangular prism with a base that has an area of 22 cm
and a height of 8 cm.
Group of answer choices
22 cubic cm
30 cubic cm
120 cubic cm
176 cubic cm
I NEED HELP ON THIS PLS
Answer:
28
Step-by-step explanation:
i did the math lol
Answer:
The answer is 28
Step-by-step explanation:
would totally explain but it takes to long lol
Janice is training for a 5K. She predicted she would spend 90 minutes running this week. She actually ran for a total of 120 minutes. What is her percent
error?
Answer:
33%
Step-by-step explanation:
She is 33% off. She was planning to run 90 minutes, but ran 30 minutes more, which is 33.3333333333% percent of 90.
An amusement park found that 5 out of 8 visitors rode a certain roller coaster more than once on the same day. There were 12,480 visitors to the amusement park on Monday. Based on this information, how many visitors rode the roller coaster more than once on Monday?
Answer:
b.
Step-by-step explanation:
A circle has a diameter of 21 meters. What is the circumference of the circle? Use 22/7 for π. (PI)
Your answer should be:
66
Why...?
Simple.
First, you multiply 21 by 22/7. But to make this easier you have to fix in 'improper fraction.' and make it into an improper fraction. Which will become 3 1/7. Now you multiply 21 and 3 1/7. Which will equal 66. So, 66 is your answer.
·············································································I hope this helped!!!
(Brainliest appreciated)
⊕If this answer doesn't answer your question or displeases you. Please tell me through comments.⊕
Thank you.
--- Juri Davis
The circumference of the circle is 66 meters.
What is a circle?A circle is a two-dimensional figure with a radius and circumference of 2pir.
The area of a circle is πr².
We have,
The circumference of a circle is given by the formula:
C = πd
where C is the circumference and d is the diameter.
Substituting the given values:
C = πd = (22/7) x 21 = 66 meters
Therefore,
The circumference of the circle is 66 meters.
Learn more about Circle here:
https://brainly.com/question/11833983
#SPJ3
The letters from the word VACATION are put in a bag and drawn randomly. What is the probability you will pull the letter A?
2/8 or 25% or 0.25
Hope this helps! Good luck! :))
Help please math 7thgrade
Simplify.
√240
A √230
B √1024
C √640
D √415
Need help with these three please and hurry
In Nancy's class, 11/18 of the girls have brown eyes, 2/9 of the girls have blue eyes, and 1/6 of the girls have hazel eyes. How many of the girls have either blue or brown eyes? [Note: Write your answer in simplest form.]
13/18
13/27
5/6
15/18
Answer:
15/18
Step-by-step explanation:
It takes 4.12 gallons of paint to paint a fence.
How much paint is needed for 1/5 of the fence?
[answer] gallons
The amount of paint needed for 1/5 of the fence is 0.824 gallons.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value. Unitary method is a technique by which we find the value of a single unit from the value of multiple devices and the value of more than one unit from the value of a single unit. It is a method that we use for most of the calculations in math.
We are given that;
Paint= 4.12gallons
Now,
To find the amount of paint needed for 1/5 of the fence, we can use the following proportion:
14.12=1/5x
where x is the unknown amount of paint. To solve for x, we can cross-multiply and get:
x=14.12×1/5
Simplifying, we get:
x=0.824
Therefore, by unitary method the answer will be 0.824 gallons.
Learn more about the unitary method, please visit the link given below;
https://brainly.com/question/23423168
#SPJ2
[tex]\sqrt{16}[/tex]
Answer:
4
Step-by-step explanation:
desmos calculator
but i knew it off the top of my head
need help please thanks
Look at the picture below to answer. If u answer correctly i will mark you as brainliest!
Answer:
A
Step-by-step explanation:
The points are similar
Can someone plz help me with this one problem plz plz help plz plz
Answer: Yes
Step-by-step explanation:
y = 1 would be a line going forever across x-axis
so as long as its (x, 1) it will satisfy that equation
HELP PLEASE!!!
A company makes triangular plates for individual slices of pizza. For each plate, the base is 7 inches and the height is 12 inches. The area of the top of the plate is ____ inches squared.
Answer:
40
Step-by-step explanation:
5x16/2= 40