Answer:
Percent increase
1. [tex]60[/tex] %
2. [tex]50[/tex] %
3. [tex]74.42[/tex] %
4. [tex]11.46[/tex] %
5. [tex]220[/tex] %
Step-by-step explanation:
1. $5 to $8
[tex]\frac{8-5}{5} * 100 = 60[/tex] %
2. From 20 students to 30 students
[tex]\frac{30-20}{20} * 100 = 50[/tex] %
3. From 86 books to 150 books
[tex]\frac{150-86}{86} * 100 = 74.42[/tex] %
4. From $3.49 to $ 3.89
[tex]\frac{3.89-3.49}{3.49} * 100 = 11.46[/tex] %
5. From 5 mile to 16 mile
[tex]\frac{16-5}{5} * 100 = 220[/tex] %
The actual amount of water in a test tube is 680 mL but when Tim measured it he erred by 3% too high. What measurement did Tim get
Answer:
Step-by-step explanation:
Answer:
700.4mL is the answer
Step-by-step explanation:
Addison invested $440 in an account paying an interest rate of 2%
compounded continuously. Assuming no deposits or withdrawals are
made, how long would it take, to the nearest tenth of a year, for the
value of the account to reach $610?
Answer:
16.3
Step-by-step explanation:
Continuously compounding interest formula:
pe^(r*t)
we know that
440e^(.02x)=610
Sovle for x
e^.02x=1.38
.02x=ln1.38
.02x=.3267
x=16.3
Answer:
16.3
Step-by-step explanation:
I got it right
i dont get the question
Answer:
(4,2) suffices the linear equation, for example.
Step-by-step explanation:
We are asked for any other pair [tex](x,y)[/tex] that suffices [tex]2y-3x = 5[/tex]. We can try [tex]x=1[/tex] (any other value also works because this is a line) and see that (4,2) suffices.
The midpoint of \overline{\text{AB}} AB is M(5, 1)M(5,1). If the coordinates of AA are (3, 6)(3,6), what are the coordinates of BB?
Answer:
(7, -4)
Step-by-step explanation:
The formula for calculating midpoint is expressed as;
M(X, Y) = (x2+x1)/2, (y1+y2)/2
X = x1+x2/2
Y = y1+y2/2
Given
X = 5, Y = 1, x1 = 3, y1 = 6
Get x2
X = x1+x2/2
5 = 3+x2/2
10 = 3+x2
x2 = 10-3
x2 = 7
Get y2;
Y = y1+y2/2
1 = 6+y2/2
2 = 6+y2
y2 = 2-6
y2 = -4
Hence the coordinate of B is at (7, -4)
please find the m∠DEF
Answer:
m∠DEF=29
Step-by-step explanation:
4y-7=2y+11
4y=2y+18
2y+18
y=9
2(9)+11= 29
4(9)-7=29
Everyone keeps on ignoring me): please help will mark brainliest):
Answer:
Step-by-step explanation:
They are testing whether you remember the basic 30,60,90 degree triangle side relationship. The ratio of sides for this triangle are 1 opposite the 30 degree angle, square root of three opposite the 60 degree angle and a hypotenuse of 2 opposite the 90 degree angle.
x/2=2/1
x=4/1=4
bottom answer choice
x/4=3^(1/2)/1
x=4(3^(1/2))
third answer choice
Find the slope of the line that passes through the following points: E(1.4). F(5,-2)
Answer:
-1.5
Step-by-step explanation:
m=-6/4
m=-3/2
-1.5
Answer:
-3/2
Step-by-step explanation:
[4-(-2)] / [1-5] = 6 / -4 = -3/2
Dario is finding the percent of change from the original price of $75 to new price of $125.
Answer:
66.66666% increase (6 goes on forever, can be rounded to 66.67%)
Step-by-step explanation:
The change is 125 - 75 = 50, so it increased by 50/75 = 2/3 = 0.666666... = 66.6666%
what is the range of possible sizes for x?
Answer:
0.5 < x < 15.5
Step-by-step explanation:
Triangle Inequality Theorem
Let y and z be two of the side lengths of a triangle. The length of the third side x cannot be any number. It must satisfy all the following restrictions:
x + y > z
x + z > y
y + z > x
Combining the above inequalities, and provided y>z, the third size must satisfy:
y - z < x < y + z
The two side lengths given in the triangle of the figure are y=8.5, z=8.0, thus the possible values of x lie in the interval
8.5 - 8.0 < x < 8.5 + 8.0
0.5 < x < 15.5
You decide to make and sell bracelets. The cost of your materials is $84. You charge $3.50 for each bracelet.
c. You will break even when the cost of your materials equals your income. How many bracelets must you sell to break even?
Answer:
You would need to sell 28 bracelets.
Step-by-step explanation:
28 x $3.50 = $85.48
27 bracelets is too little, 27 x $3.50 = $82.35
So it's 28
3(x^2-1) + 4(x^2 - 3) = 13
solve for x
Answer:
x=2, x=-2
Step-by-step explanation:
3x²-3+4x²-12=13
7x²=13+12+3
7x²=28
x²=4
x=-2
x=2
The distance from your home to the school is 4 9/10 miles. From your house to the pool is 3 1/2 miles. How much farther are you from the school than from the pool?
The number of seeds found in a sample of 7 different oranges were: 3, 3, 4, 5, 7, 8, and 12. What is the range of the number of seeds in the sample of oranges?
A:5
B:6
C:7
D:9
PLz help me i need this answer
Answer:
9
Step-by-step explanation:
Range is Biggest Number - Smallest Number.
12 is the biggest number and 3 is the smallest number.
So, 12 - 3 = 9
Answer:
9
Step-by-step explanation:
becauses 12-3=9
hope it helps
Victim but jeans on sale for $60 the silver 20% off what was the original price of the
Answer: i beleive $72
Step-by-step explanation:
How many people ate at least 1 banana last week?
Explain your answer.
Answer:
11 people ate at least 1 banana.
Is 4( 3b - 4) equivalent to 2( 6b - 8) ?
Answer:
YES
Step-by-step explanation:
4(3b-4)=2(6b-8)
12b-16=12b-16
YES
Answer:
yes
Step-by-step explanation:
because 4*3=12 and 2*6=12 , and 4*4=16 and 2*8=16
POSSIBLE POINTS: 0.83
On Saturday, Breanne drove 25 miles. On Sunday, she
drove 125 miles. The number of miles Breanne drove on
Sunday is what percent of the number of miles she drove
on Saturday?
%
Answer: 500%
Step-by-step explanation:
125 / 25 = 5 = 500%
We can check this answer by doing 5×25 = 125 so our answer is correct.
I am not a professional, I am simply using prior knowledge!
Note- It would mean the world to me if you could mark me brainliest!
HELPPPPPP DUE AT 5PM
Answer:
1.B 2.B 3.B 4.B
Step-by-step explanation:
They are all B 0_0
What 3.8in nearest tenth
Answer:
3.8
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
Since the tenths place is where the 8 is 8 is over 5 and is closest to ten
what is 892.42 rounded tents place
892.4
May Nilbin Be With You
Find the maximum or minimum value of the graph below. Indicate whether it is a maximum or minimum value.
value=
a. -3
b. -1
c. 4
d. 1
HELP ME WITH THIS PLEASE
Answer:
2x+11=25
7
Step-by-step explanation:
I think of a number (x) and double it (multiply it by 2) and then add 11
put this all together and get
2x+11=25
Solve for x
2x=14
x=7
Answer:
2x+11=25
Step-by-step explanation:
x=7
Can somebody help???
Answer:
first box - 2.10
second box - 2.14
Answer:
2.10 & 2.14
Step-by-step explanation:
its basic adding by 2 yk
Help me I need the answer ASAP I’ll give brainliest
Answer:
number 2
Step-by-step explanation:
4/10 and 10/25 are equal : proportionate
Answer the following.
(a) A certain solution has a hydrogen ion concentration of 0.0000448 moles per liter. Write this number in scientific notation.
Answer:
35554555
Step-by-step explanation:
25/35 Marks
Find the midpoint of A and B where A has coordinates (8, 2)
and B has coordinates (3,8).
Answer:
[tex]\displaystyle (\frac{11}{2},5)[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Coordinates (x, y)Midpoint Formula: [tex]\displaystyle (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]Step-by-step explanation:
Step 1: Define
Point A(8, 2) → x₁ = 8, y₁ = 2
Point B(3, 8) → x₂ = 3, y₂ = 8
Step 2: Find Midpoint
Simply plug in your coordinates into the midpoint formula to find midpoint
Substitute in points [Midpoint Formula]: [tex]\displaystyle (\frac{8+3}{2},\frac{2+8}{2})[/tex][Midpoint] [Fraction] Add: [tex]\displaystyle (\frac{11}{2},\frac{10}{2})[/tex][Midpoint] Divide: [tex]\displaystyle (\frac{11}{2},5)[/tex]Numbers 6 , 3 , (X – 4) are length of sides of an isosceles triangle , X =
PLEASE HELP i suck at math
What are the coordinates of the image of A(2, 5) after it is rotated
180° clockwise about the origin?
Two of the following numbers add up to seventeen. 6 - 13 - 2 - 12 - 7 - 14
FALSE
TRUE
Answer:
false
Step-by-step explanation:
i tried everything
In the above question is 400 the part or the whole?
Answer:
What is it?
Step-by-step explanation: