Answer: 'Percent (%)' means 'out of one hundred':
p% = p 'out of one hundred',
p% is read p 'percent',
p% = p/100 = p ÷ 100.
8% = 8/100 = 8 ÷ 100 = 0.08.
100% = 100/100 = 100 ÷ 100 = 1.
Step-by-step explanation:
To calculate percentage decrease:
First: work out the difference (decrease) between the two numbers you are comparing. Then: divide the decrease by the original number and multiply the answer by 100. If your answer is a negative number, then this is a percentage increase.
Use the portion of the periodic table shown below to answer the questions.
A portion of the first three columns of the periodic table is shown. Column one from top to bottom reads 11 sodium 22.990, 19 potassium 39.098, and 37 rubidium 85.468. Column two reads 12 magnesium 24.305, 20 calcium 40.078, and 38 strontium 87.62. Column three reads 21 scandium 44.956 and 39 yttrium 88.906.
Part 1: Name two elements that have the same properties as magnesium (Mg). (4 points)
Part 2: Determine the number of protons, electrons, and neutrons present in an atom of potassium (K). Explain how you determined your answer using complete sentences. (6 points)
Part 1:
Calcium(Ca) And Strontium (Sr)
Part 2:
Protons: 19
Electrons: 19
(both are the same)
Neutrons:20
Subtract 19 From 39 And Get 20
If You Use This Pls Put it in your own words
Also Sorry if I'm late!
2/3x - 7 < 9
help please
Answer:
x<24
*the answer will be incorrect if you meant 2/(3x) instead of (2/3)x
Step-by-step explanation:
First, add 7 to both sides of the inequality to get "2/3x<16." Then multiply both sides by 3 to get "2x<48." Finally, divide both sides by 2 to get "x<24"
• The corresponding angle measures are ________
Answer:
two lines are crossed by another line (called the Transversal): The angles in matching corners are called Corresponding Angles. In this example, these are corresponding angles:
Step-by-step explanation:
9. DOG WALKING Evan, a dog walker, charges $3 every block that he walks a dog. He also charges a $5 pick up fee when he comes to get a dog. How many blocks will he need to walk a dog in order to earn $26? Write an equation and solve the equation.
Answer:
Evan will have to walk 7 blocks
Step-by-step explanation:
Evan will have to walk 7 blocks because he gets $5 from picking up the dog, so subtract 5 from 26 to get 21. Next, you want to divide 21 by 3 to get 7 because $3 a block and you need to find how many blocks he needs to do.
4.58 grams=________ Milligrams
Help ASAP!!!!!!!!!!
I need help with this.
I need to find both A and B, I’m just lost at this point
if anna sliced a pizza into 18 pieces and there's 5 people how much do they he all get
Answer:
3.6 slices
Step-by-step explanation:
Answer:
18 divided by 5 is 3.6 so each person will get 3.6 of the pizza.
find the slope of the line passing through the points (5, 6) and (5,-8)
Answer:
Undefined
Step-by-step explanation:
Slope is equal to the change in y over the change in x.
m = (y₂ - y₁) / (x₂ - x₁)
Let your points (5, 6) be (x₁, y₁) and (5,-8) be (x₂, y₂). Therefore you have
m = (-8 - 6) / (5 - 5) = -14 / 0
Dividing by zero will lead you to have an undefined slope
3 (x – 1 ) + 4 ( x + 2 )
Answer:
7x + 5
Step-by-step explanation:
Let's simplify step-by-step.
3(x−1)+4(x+2)
Distribute:
=(3)(x)+(3)(−1)+(4)(x)+(4)(2)
=3x+−3+4x+8
Combine Like Terms:
=3x+−3+4x+8
=(3x+4x)+(−3+8)
=7x+5
-Bacon
DESPERATE WILL GIVE BRAINLIST AND THANKS
Which associations best describe the scatter plot?
Select each correct answer.
Nonlinear association
Positive association
Linear association
Negative association
Answer:
D) I think
Step-by-step explanation:
Answer: From the graph all the points are moving in tandem and shows a directly proportional relation between them . Hence, positive linear association best describe the scatter plot.
Step-by-step explanation:
Jane goes to an amusement park with her friends. The admission fee to the amusement park is $8 and each ride costs $2. If Kelly has only $32 to spend how many rides can she go on?
Answer:
She can ride 12 rides i think if not let me know!
Step-by-step explanation:
32 - 8 then 24 divided by 2
someone help me please!
Answer:
1) 44 toilet rolls
2) 15 packs
3) 72 yogurts
4) 4 packs
Step-by-step explanation:
1) 4 x 11 = 44 in 11 packs
2) 60÷4= 15 packs
3) 12 ×6= 72
4)42÷12=3.5=4
Hi, I have a question: Is 1.2 and 1.20 the same?
Answer:
yes
Step-by-step explanation:
0 is just a place holder
Answer: yes
Step-by-step explanation:
Trailing zeros with no numbers of value after them are just place holders.
Given the first term and the common ratio of a geometric
sequence find the first five terms and the explicit formula. a1
= 0.8, r= −5
Answer:
nth term = 0.8 * -5^(n - 1)
First five terms are: 0.8, -4,
20, -100, 500
Step-by-step explanation:
First term, a1 = 0.8
Common ratio, r = -5
a1 = 0.8
Second term = ar
= 0.8 * -5
= -4
Third term = ar²
= 0.8 * -5²
= 0.8 * 25
= 20
Fourth term = ar³
= 0.8 * -5³
= 0.8 * -125
= -100
Fifth term = ar⁴
= 0.8 * -5⁴
= 0.8 * 625
= 500
First five terms are: 0.8, -4,
20, -100, 500
nth term = ar^(n - 1)
= 0.8 * -5^(n - 1)
nth term = 0.8 * -5^(n - 1)
Drake buys a ring that costs $8,000, which depreciates at a rate of 9.5% per year.
What is the value of Drake's ring after 7 years? Round to the nearest cent.
Answer:
$1129.93
Step-by-step explanation:
100 - 9.5 = 90.5
8000 - 90.5 = 7909.5
7909.5 ÷ 7 = 1129.93
i hope this helps
-6 >-2 – 9x
Solve for x
Answer:
x > 0.44
Step-by-step explanation:
-6 >-2 – 9x
9x > 4
x > 0.44444444
about 0.44
I will give brainlits and start pls help
Graph the equation y = 3x - 3 using slope and y-intercept.
6
5
y
4
3
N
1
0
-1
-2
الفا
4
-5
-6
-5
-2
-4
-1
0 1
-3
2
5
2
6
3
á
?
y = 3x - 3
Step-by-step explanation:
(0,-3) and (1,0) this are the point
80% of n is 32 what is the value of n
Answer:
n=40
Step-by-step explanation:
divide 32 by 80
32/80=0.4
0.4x100=40
n=40
what is the solution of the system of equations 2x-3y=-9 -x+3y=6
Answer:
the answer to the question is (6,10)
Step-by-step explanation:
In △ A B C , the measure of angle A is 103 ° and the measure of angle B is 37 ° . What is the measure of angle C ?
Step-by-step explanation:
103° + 37° + < C = 180° { being sum of angles of triangle }
< C = 180° - 140°
< C = 40°
Hope it will help :)
Please write a persuasive essay on why parents are more important than peers.
What is the solution to the system of equations graphed below?
help plz!!!!!!!!! (pic below)
Answer:
k = 13.5
Step-by-step explanation:
Since 3 * 3 = 9
And 3 * 4 = 12
Then 3* 4.5 = 13.5
As the statement goes, "Triangle XYZ is similar to Triangle ABC."
An angle measures 62.4° less than the measure of its complementary angle. What is the
measure of each angle?
Answer:
28
Step-by-step explanation:
So if it's a complementary angle is equals 90 degrees total. So subtract 62 from 90. 90-62=28
In the diagram below, AC intersects ABDE at B. Choose True or False for each statement
Answer:
false, true . false
Step-by-step explanation:
if u want an explanantion you can ask me :)
Answer: a. True b. True c. False
Explanation:
a. 65+25 =90 complementary angles add up to 90°
b. 65 + b + 25 = 180
90 + b = 180
b = 180 - 90
b = 90
Check-
65 + 25 + 90 = 180
90 + 90 = 180
180 = 180 ✅
c.not vertical angles because they aren’t across from eachother
Which of the following is the solution to the system of equations shown below?
x + 5y = -3
3x – 2y = 8
Answer:
x = -2, x = 1
Step-by-step explanation:
mark as brainliest it is right
Can y’all help me with number 1
Answer:c
Step-by-step explanation:
Answer:
The answer would be B.
solve using quadratic equations (x+3)^2=25
Answer:
x=2 or x=−8
Step-by-step explanation:
Alyson opened a savings account with
$100. She saves $50 per month. Which
equation shows how many months, m,
Alyson will have to save to have a total of
$250 in her account?
Answer:
3 more months to get $250.
Step-by-step explanation:
She had 100 in her account. Thats 2 months. 3 months would give her 150 more dollars. So 100 + 150 = 250
Which of the following equations has exactly one real solution?
A.
2(x + 14) = 2x + 28
B.
7x + 14 = −2x − 17
C.
2x + 14 = 2x + 14
D.
7x + 14 = 7x − 17
Answer:
Option A
Step-by-step explanation:
2(x+14)=2x+28
2x+28=2x+28
IT HAS REAL SOLUTION :)
PLZZ MARK ME AS BRAINLIEST