find each percent change. tell whether it is a percent increase or decrease
8 to 10
50 to 20
120 to 54
12 to 96
72 to 108
2 to 1.3
Sombody help please quickly!!
Answer:
38%
Step-by-step explanation:
Change [tex]\frac{7}{25}[/tex] to a percent, that is
[tex]\frac{7}{25}[/tex] × 100% = 0.28 × 100% = 28%
Then 34% + 28% = 62% ← go by bus or car, leaving
100% - 62% = 38% walking to school
5 m 7 cm + 1m =
please help my and be sure to like❤❤
Answer:
6.07 meters
Step-by-step explanation:
⭐
How many hectograms are in 45 centigrams?
Answer:
0.0045 hectograms are in 45 centigrams
Step-by-step explanation:
7 ^ 8 times 7 ^ 3 times 7 ^ 4 / 7 ^ 9 times 7 ^ 5
Answer:
7^8 =5764801 * 7^3 =343 * 7^4 =2401 ÷ 7^9 = 40353607 * 7^5 =16807
5764801 *343 *2401 ÷ 40353607 *16807
=4747561509943 ÷ 678223072849 = 7
Pablo bought 5 CDs that were each the same price. Including sales tax, he paid a total of $74.50. Each CD had a tax of $0.80. What was the price of each CD before tax?
Answer:
Step-by-step explanation:
74.50=5x+5(.80)
74.5=5x+4
-4 -4
70.5=5x
5 5
$14.10=x
What is the pyhtagoream thereom and how can you use it to slove right triangles
Answer:
Pythagorean Theorem: a² + b² = c²
Step-by-step explanation:
a is one leg of the right triangle.
b is another left of the right triangle.
c is the hypotenuse of the right triangle.
We use the Pythagorean Theorem to help us solve for missing side lengths of a right triangle.
A tennis ball is tossed into the air. The height, h(t), in feet, of the tennis ball is a function of time, t, in seconds, as shown in the table below. What is the average rate of change of h on the interval 1 < t < 2.5?
0 0
0.5 20
1 32
1.5 36
2 32
2.5 20
3 0
Whats the answer
I have sent a photo im not sure if u can see it
Answer:
That would be (-5,5)
Step-by-step explanation:
Unless I saw the photo wrong, you start at the coordinates (-3,-1). You move left 2 units to get to (-5,-1). Then you move 6 units up. That will get you to (-5,5).
I hope this helps! All credit should go to tjclrk1; I had to edit
PLZ HELP!
in a survey, 25 out of 200 students are planning to vote for Susie for class president. If there are 1,000 students voting, how many votes would Susie expect?
Answer:
125 votes
Step-by-step explanation:
Set up a proportion.
[tex]\frac{25}{200} =\frac{x}{1000}[/tex]
Cross-multiply. Solve for x.
[tex]25,000=200x\\25,000/200 = 200x/200\\125=x[/tex]
Susie can expect 125 votes.
Simplify (2a+5)6a^2
Can someone help please
Answer:
12a^3+30a^2
Step-by-step explanation:
6a^2(2a+5)
12a^3+30a^2
Evaluate the following expression when x=14. X^2+5x+11
Answer:
277
Step-by-step explanation:
14^2+5(14)+11=
196+70+11=
277
Start by substituting 14 in for x everywhere that x appears in the problem.
So we have (14)² + 5(14) + 11.
Remember that PEMDAS tells you to deal
with your exponents before multiplying.
So you must square the 14 to get 196.
So we have 196 + 5(14) + 11.
Now multiply 5(14) to get 70.
So we have 196 + 70 + 11.
Now we can simply add to get 277.
Solve and show how you did 5 (x-1) + 3 = 13
Answer:
x=3
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
5(x−1)+3=13
(5)(x)+(5)(−1)+3=13(Distribute)
5x+−5+3=13
(5x)+(−5+3)=13(Combine Like Terms)
5x+−2=13
5x−2=13
Step 2: Add 2 to both sides.
5x−2+2=13+2
5x=15
Step 3: Divide both sides by 5.
5x
5
=
15
5
x=3
Answer:
x=3
A factory made 357,945 baseball bats over the last 2 years. During that time, the factory made 490,867 little league baseballs and 389,839 major league baseballs. How many more baseballs than bats were manufactured during the 2 years? Liliana's answer to this question is below. Her teacher says her answer is not reasonable. Look over her work before answering (a) and (b).
Answer:
522,761 baseballs
Step-by-step explanation:
Number of baseball bats produced over the last 2 years = 357, 945
Number of little league baseballs produced over the last 2 years = 490,867
Number of major league baseballs produced over the last 2 years = 389,839
Total number of baseballs produced over the period = 490,867 + 389,839
= 880,706
Number of baseballs manufactured more than bats = 880,706 - 357945
= 522,761
There are 522,761 baseballs produced more than bats during the 2 years.
I have two-thirds of a square and I want to divide it by one-half. How many pieces would I have?
Answer:2 pieces or 1 1/3
Step-by-step explanation:
cause if 2/3 was 1 piece and you divide by 1/2 you have double what you had making you have 2 pieces
Solve [X + 8) = 5
With steps
Answer:
X=(-3)
Step-by-step explanation:
1.Subtract 8 from both sides of the equation.-(x+0)=5-8-the 0 is there because the 8 on the left side is canceled out.
2.5-8 is all you have to look at.-when you look at this you know that it will be negative because 8 is on the right of the minus sign and it is greater than 5.
3.Use a calculator or you fingers to find answer.-(4,3,2,1,0,-1,-2,-3)
HOPE THIS HELPS!!!
If a²+b²=74 and ab=10 find the value of (a-b)²
Answer:
54
Step-by-step explanation:
(a -b)²
= a² -2ab +b²
= a² +b² -2ab
= 74 -2(10) (subst. value of a²+b² and ab)
= 74 -20
= 54
A and B are supplementary angles. If m A=(x-18)° and mB =(x-20),
find the measure of B
Answer:
89 degrees
Step-by-step explanation:
supplementary angles add up to 180 degrees, so we can add up A and B and make it equal to 180.
(x-18)+(x-20)=180
2x-38=180
2x=218
x=109
then, we plug in 109 for x in the mB equation.
mB=x-20
mB=109-20
mB=89 degrees
therefore, the measure of B is 89 degrees.
Answer:
B = 89
Step-by-step explanation:
Supplementary angles: A + B = 180
Simplify: x-18 +x -20 = 180
2x-38 = 180
2x = 218
x= 109
B = x-20
B = 89
Carlo’s Bakery is having a special where he packages 6 muffins together for a low price and he packages 20 cookies together for a low price. His baker realized they sold the same amount of muffins and cookies yesterday due to this great sale. What is the minimum amount of muffins that were sole yesterday? Is this a GCF or LCM problem?
Answer:
They sold 60 muffins and 60 cookies yesterday
It is a LCM problem
Step-by-step explanation:
6 muffins together
20 cookies together
To sell the same amount of muffins and cookies,
Find the lowest common multiple of 6 muffins and 20 cookies
6 muffins = 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78
20 cookies = 40, 60, 80
The lowest common multiple of 6 muffins and 20 cookies is 60
Therefore,
They sold 60 muffins and 60 cookies yesterday
It is a LCM problem
Hurry this is due in a couple of minutes!!!!!
Answer:
1. 1:1500
2. 1500 times
Step-by-step explanation:
1 foot=12 in.
500*12=6000
4:6000=1:1500
Which square root would end as a rational number?
Answer:
it is all of them because
Step-by-step explanation:
the first on is 8.94..
2,15.81
3,2.44
4,13
they all are rational number
3. Solve for y:
X + 9y = 27
Answer:
y=3 - x/9
Step-by-step explanation:
Answer:
y= 27-x/9
Step-by-step explanation:
x + 9y = 27
9y = 27-x
9y/9 = 27- x/ 9
y = 27-x/9
What’s the mathematical expression for “ three times x no less than 9”
Answer:
not simplified: 3x≤9
simplified: x≤3
At a carnival, food tickets cost $2 each and ride tickets cost $3 each. A total of $1,240 was collected at the carnival. The number of food tickets sold was 10 less than twice the number of ride tickets sold.
The system of equations represents x, the number of food tickets sold, and y, the number of ride tickets sold.
2x + 3y = 1240
x = 2y – 10
How many of each type of ticket were sold?
180 food tickets and 293 ride tickets
180 food tickets and 350 ride tickets
293 food tickets and 180 ride tickets
350 food tickets and 180 ride tickets
Answer:
D on edg
Step-by-step explanation:
Answer:d on ed
Step-by-step explanation:
a pulley rotates through 65 in 2 minutes. how many rotations does the pulley make in 4 hours
Answer: 15600 rotations
Step-by-step explanation:
Lines c and d are intersected by line p. At the intersection of lines c and p, the bottom left angle is (3 x + 45) degrees. At the intersection of lines d and p, the uppercase left angle is 81 degrees.
What must be the value of x so that lines c and d are parallel lines cut by transversal p?
12
18
81
99
The value of x so that lines c and d are parallel lines cut by transversal p is 12
Angles and transversalsFrom the given figure, the sum of the given angles is supplementary, that is:
3x + 45 = 81
Subtract 45 from both sides
3x + 45 -45 = 81 - 45
3x = 36
x = 12
Hence the value of x so that lines c and d are parallel lines cut by transversal p is 12
learn more on transversals here: https://brainly.com/question/24607467
Answer: B
Step-by-step explanation:
18
What is the slope of the following liner Function: f(x) = -2x+5
Answer: m = -2
............................
Step-by-step explanation:
y= mx+b
-2/1
Complete the sentence.
A regular pentagon and a regular hexagon can intersect in
a line
a ray
a line segment
a rectangle
Submit
Answer:
A line segment
Step-by-step explanation:
Find the slope of the line passing through the points (-9, -2) and (4, -2).
slope: 0
What does the slope of the graph represent?
