The number of students in chess club decreased from 49 to 18 what is the percentage decrease
Answers
Explanation: (49 - 18) ÷ 49, based on percentage decrease formula. Which would get you 0.632... and you can round that to 0.63 which would be 63% as a percentage.
(Hope this helps and please mark me as brainliest!)
Answer:
Roughly a 63.2653% decrease
Step-by-step explanation:
63.2653% of 49 is 30.999997
49-30.999997=18.000003
Related Questions
Simplify the following expression.
3(2x+7)
Answers
3(2x + 7)
3 • 2x • 3 • 7
6x + 3 • 7
6x + 21
A ladder leans against the side of the a house. The ladder is 17 feet long and forms an angle of elevation of 72 degree when leaned against the house. What is the height where the ladder meets the side of the house? Round your answer to the nearest tenth.
please explain how you got the answer if you can! thanks :)
Answers
Answer:
7 feet is your answer because by time the ladder reach the side of the house from 72 degree angle if you measure it right and cross path with the correct tools you will see that it reaches 7 ft
Write the equation y + 4 = • 3 - 15
15) in
slope-intercept form.
Help with both please mostly the first one .
Answers
Answers:
1. y = 3/5 x - 13
2. y = 1/11 x + 2/11
{ i hope this helps :) i'm sorry if its wrong }
helppppp MEEE!! i will also give brainiest
Answers
Answer:
1500
Step-by-step explanation:
Help pls, answer choices listed!
Answers
Answer:
I believe it is answer B if it's wrong I'm very sorry/
Step-by-step explanation:
Solve using substitution.
y=9x-1
Y=4x-6
Answers
9x=4x-5,
5x=-5
X=-1
Hope this helps!
Marry wants to buy 8 pounds of grapes.Each pound cost $1.89 Mary has $15 .Does she have enough money to buy the grapes explain
Answers
Answer:
NO
Step-by-step explanation:
No she does not have enough money to buy 8 pounds. because for two pounds it costs 3.78 and with 15$ she can buy like six?
5x-14=8x+4 and 7x-4=3+8x with the work
Answers
Answer:
Step-by-step explanation:
5x-14=8x+4
-5x. +14 -5x. +14
3x=18
x=6
7x-4=3+8x
-7x. -3 -7x -3
x=-7
If C = x2 + 8x + 3 and B = x – 8, find an expression that equals 3C + B in
standard form.
Answers
Answer: 3x^2 + 25x + 1
Step-by-step explanation:
3C + B
=> 3(x^2 + 8x + 3) + (x - 8)
=> 3x^2 + 24x + 9 + x - 8
=> 3x^2 + 25x + 1
PLZ HELP ME!!!
Why is it important to understand how variables work, inequalities, and basic awareness of exponents before starting algebra?
Answers
Answer:
It is important because they are the basics of algebra. Almost every algebraic problem you will ever solve is based on these fundamental properties. In equations, we almost never know every part of it so we will need variables to substitute the unknown amount in an equation. Variables are used for basically every equation/problem in algebra. Inequalities are not as important as variables but are still really important. Inequalities are basically comparing numbers. And in algebra when they add variables into an inequality, the inequality will help lower the number of possible values of said variable. And exponents are just a basic operation in algebra. Just like learning addition and subtraction. It is like a quicker and less complicated way of multiplying numbers.
A 16 ounce box of cereal is priced at $3.68. Find the cost per ounce *
Answers
Answer:
0.23$
Step-by-step explanation:
16 ounce box of cereal is priced at =3.68$
∴1 ounce box of cereal is priced at=(3.68/16)$
=0.23$
Find the value of y when x = -5.
y=6r
When x= -5, y=
Answers
Answer:
6
Step-by-step explanation:
Because y isn't it's number
What number should go in the space multiplying by 1.44 is the same as increasing by.
Answers
Answer:
multiplying by 1.44 is the same as increasing by 44%
Step-by-step explanation:
this is because 44+100 divided by 100 is 1.44
On Thursday the Meat King Market sold 210 pounds of ground beef. On Friday they sold twice that amount. On Saturday they only sold 130 pounds. How much more meat did they sell on Friday than Saturday?
Answers
What is the product of:
7x4.5x6
Answers
Answer:
189
Step-by-step explanation:
:)
Answer:
189
Step-by-step explanation:
mulitply 7 by 4.5= 31.5
31.5 x6=189
The top of a coffee table is in the shape of a rectangle,
The length of the top of the coffee table is 3.5 feet and
the area is 105 square feet. What is the width of the top
of the coffee table
Answers
Answer:You would need to do 10.5/3.5. This equals 3ft
Step-by-step explanation:
PLZ HELP ME!!! ILL MARK BRAINLIEST!!!!!
Why is it important to understand how variables work, inequalities, and basic awareness of exponents before starting algebra?
Answers
Answer:
well algebra is basically about variables.
This is because you're assigning an equation or a number to a letter.
Exponents- that I don't really and inequalities
Which set of ordered pairs represents a function?
{
(
−
2
,
4
)
,
(
−
1
,
6
)
,
(
−
6
,
3
)
,
(
−
6
,
4
)
}
{(−2,4),(−1,6),(−6,3),(−6,4)}
{
(
5
,
5
)
,
(
9
,
5
)
,
(
−
8
,
0
)
,
(
−
7
,
8
)
}
{(5,5),(9,5),(−8,0),(−7,8)}
{
(
−
2
,
6
)
,
(
8
,
−
3
)
,
(
−
8
,
4
)
,
(
8
,
−
8
)
}
{(−2,6),(8,−3),(−8,4),(8,−8)}
{
(
−
2
,
−
1
)
,
(
−
1
,
6
)
,
(
2
,
4
)
,
(
−
2
,
−
9
)
}
{(−2,−1),(−1,6),(2,4),(−2,−9)}
Answers
Answer:
the second one
Step-by-step explanation:
in order for it to be a function the x values CANNOT repeat.
in answer a the x value -6 repeats so that cannot be a function
in answer b none of the x values repeat so its probably this one but lets check the other ones just in case
in answer c the x value 8 repeats so it cannot be this one
in answer d the x value -2 repeats so it cant be this one \
b is the only one that does have repeating x values therefore it is the second one
Help me please chile
Answers
Answer:
1 neither
2 supplementary
3 supplementary
Step-by-step explanation:
which two are equivalent expressions?
Answers
Answer:
4t and t+t+t+t
Plz mark as brainliest
ello awnser this what is 1 area x 649= ???
write in te awnser box
Answers
Answer:
Well I believe 1 x 649 equals 649 units as the area...
I tried my best! Hope this helps you!
Helppp meeee pleaseeeee
Answers
SOLVE PLEASE!!!
A. If a person bikes .24 miles in 1 minute, how far can he bike in 90 minutes?
B. A store sells notebooks at 2 for $4.72. Mrs. Johnston needs to buy 11 for her 3rd period class. How much will she have to pay for all of them.
Please solve a AND b BOTH OF THEM THEN YOU'LL GET 100 points plus the drown.
Answers
Answer: A.1.5 hours = 90 minutes
B.2.4 x 9= 21.6 miles
Step-by-step explanation:
How to expand :
-2(t+1)^2+5
Please provide a step by step explanation!!
Answers
Answer:
Your answer is 21
Hope that this is helpful. Vote and like it
If the pattern in the table is extended to represent more equivalent ratios for 2:6, which pair of numbers would be Colums?
A) 20 would be in the column for 2, and 69 would be in the column for 6
B) 20 would be in the column for 6, and 60 would be in the column for 2,
C) 20 would be in the column for 2, and 56 would be in the column for 6.
D) 20 would be in the column for 6, and 56 would be in the column for 2.
Answers
Answer:
I believe it's B
Step-by-step explanation:
Solve for X in the rectangle?
Answers
Answer:
x=6
Step-by-step explanation:
13x+12=90
13x=78
x=6
The value of x in the rectangle is 6.
What is Trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
The given quadrilateral is a rectangle.
In rectangle each angle has 90 degrees.
So equate 13x+12 and 90 degrees to get x
13x+12=90
Subtract 12 from both sides
13x=90-12
13x=78
Divide both sides by 13
x=6
Hence, the value of x in the rectangle is 6.
To learn more on trigonometry click:
https://brainly.com/question/25122835
#SPJ2
155,152,149
what is the 30th term of the sequence plzzzzzzzzzzzzzz helpppppppppppppp ill make brainliest
Answers
Answer:
27
Step-by-step explanation:
155 , 152 , 149
term rule = n- 3
30th term
n-3
substitute n for 30
30-3=27
Answer:
68
Step-by-step explanation:
D = -3
an = a1 + (n-1)d
a30= 155 + (30-1)-3
a30 = 155 + 29(-3)
a30 = 155 + (-87)
a30 = 68
3(7 – 2y) = 9
Please help. You have to solve it using distributive property. Thank you.
Answers
Answer:
3(7-2y)=9
Because there is no symbol between the 3 and the "(" we can tell that it wants you to multiply.
With the distributive property you must distribute the 3 within (7-2y)
To that you would multiply 7 by 3, and multiply -2y by 3. This would get you:
21-6y=9
To get y you must isolate it, the first step to isolate it is remove the number with no "y" next to it. Which is "21" Also for further problems your way, You should add/subtract/divide/multiple the number that does not have the same or even a variable as the variable you are trying to find to the other side.
In this case it would be subtracting 21 from the left side and subtracting it to the right side which would give us: 6y=-12
(Because there was already a number with no variable: "9" you will subtract 21 from 9 which is why you get -12).
Next you will further isolate the y by removing the -6. "-6y" means -6 multiplied by y. So you will divide -6 from the left side AND the right side.
-6y ÷ -6 = y ; -12 ÷ -6 = 2
y=2
More tips: When you are moving something to the other side always do the opposite to remove it from one side and move it to the other. Example: -12 + y = 5
You want to move the -12 to the right side. So you need to remove "-12" from the left side by ADDING 12 because -12 + 12 = 0.
Now you simply add it to the right.
Another example: 4y = 8
Because 4y is multiplication (4 times y) you must divide it from each side to isolate the y! : y=2
If you divide a number from the left side, you must also divide it from the right side. If you add a number on the left side, you must also add it on the right side. Same goes for subtraction and multiplication. Think like that!
Step-by-step explanation:
So ya
Answer:
y=2
Step-by-step explanation:
3(7 – 2y) = 9
/3 /3
(7-2y)=3
-7 -7
-2y=-4
/-2 /-2
y=2
What is sin B = 0.5592?
Answers
Answer:
sin(30°) = 0.5
sin(30°) is exactly: 1/2
Note: angle unit is set to degrees.
Step-by-step explanation:
-4x + 64 < 242 + 3x
Giving extra points
Answers
Answer:
x>−178/7
Step-by-step explanation:
I'm assuming you wanted to solve for the inequality of x, if so this is the answer.