Answer:
72 students
Step-by-step explanation:
1. change 60% to decimal= 0.6
2. multiply 0.6 by 120
3. 72
is 3pi rational or irrational I keep getting mixed answers.
Answer:
Irrational.
Step-by-step explanation:
π, or pi, is an irrational number. 3 times π would still be irrational, as its decimal never ends.
3pi is an irrational number an irrational number (pi) multiplied by a rational number is irrational
Which rate is equivalent to the unit rate of 17 miles per gallon?
Answer:
B.
Step-by-step explanation:
51 miles / 3 gallons = 17 miles per gallon
its b i did the test
List all number sets that apply to each number.
There are 10 questions in a quiz. Using the reference image, find how many questions must be answered correctly to earn at least 14 points.
Find the x plz help
[tex]\tt Step-by-step~explanation:[/tex]
To solve for x, we need to know that the angles inside of a triangle is always equal to 180º.
[tex]\tt Steps:[/tex]
Since all the angles added together are equal to 180º, we simply have to add the two given angles and subtract that from 180º.
[tex]\tt 43+60=103\\180-103=77\\x=77[/tex]
[tex]\large\boxed{\tt Our~final~answer: ~x=77}[/tex]
(-4x2 + 2) - (-7ac2 + 10x + 1)
Answer:
-4[tex]x^{2}[/tex]+1+7[tex]a^{c} ^{2+10}[/tex]x
Step-by-step explanation:
Help me out please thank u
Explanation:
Points A, C, U, D, S and E are all in the bottom floor plane. A plane is a flat surface, and saying "points are coplanar" means the points are all on the same plane.
Points like R, T and B are not on the floor plane, so they are not coplanar with the other points mentioned in the previous paragraph.
In other words, point R is not coplanar with points C, D and E since R is not on the floor plane with C,D,E.
g(x) = x^2 - 3x. Find g (-4)
Step-by-step explanation:
g(-4)=(-4)^2-3(-4)
=16+12
=28
Is -43 a rational number?
Peter is five years more than half kim’s age. kim is 16 years old.
how many years old is peter
A) 8
B) 13
C) 21
D) 32
Answer:
B)13
Step-by-step explanation:
Answer:
Peter would be 13 years old.
Step-by-step explanation:
Gavin borrowed $250 from his parents to buy a new mp3 player. Each week he pays his parents back $10. The function, m(w) = 250 – 10w, represents how much money Gavin still owes his parents. What does the value of w represent when m(w) = 0? Explain your reasoning. What is the value of w when m(w) = 0?
Answer:
m=25
Step-by-step explanation:
You want to divide 250 by 10 to find the number of weeks it would take him to pay back his parents. which would be 25. It would take Gavin 25 weeks to pay his parents back. m(w)=0 just is telling you the worth of that part of the equation.
3x-10
25
X+15
Find the value of x
X= type your answer...
Concepts Used:
Exterior Angle PropertyFinding x:_____________________________________________
From the Exterior angle property, we know that the measure of an exterior angle is the sum of the 2 opposite interior angles
So, using the property
(3x-10) = (25) + (x + 15)
3x - 10 = 25 + x + 15
3x - 10 = 40 + x
3x-x - 10 = 40 [subtracting x from both sides]
2x - 10 = 40
2x = 50 [adding 10 on both sides]
x = 25 [dividing both sides by 2]
Hence, the value of x is 25
PLEASE HELP
Solve each given equation and show your work. Tell whether it has one solution,an infinite number of solutions, or no solutions, and identify each equation as an identity, a contradiction, or nethier.
(A) 5x+9=2x+7+3x-15
(B) 7x+5x-7=21+10x
(C)24-3x=8-2x+16-x
5x+9=2x+7+3x-15
0=17
7x+5x-7=21+10x
2x=28
x=14
24-3x=8+2x+16-x
-4x=0
~
answer:c
A triangle has perimeter 37 cm
Two sides of the shapes are put
together to make a pentagon
A square has perimeter 56 cm.
What is the perimeter
of the pentagon?
Write the equation of a line with a slope of 3 and a y-intercept of 4. Do not use spaces
in your response.
Answer:
Y=3x+4
Step-by-step explanation:
Why do waves move faster at higher temperatures and in a solid phase?
There is more energy and the particles are farther apart.
There is less energy and the particles are closer together.
There is less energy and the particles are farther apart.
O There is more energy and the particles are closer together.
Answer:
its d
Step-by-step explanation: im taking the quiz right now and this is what i chose i am 100% sure that this is the answer! Hope this helps!
The waves move faster at higher temperatures and in a solid phase because there is more energy and the particles are closer together.
What is Energy?Energy is a quantifiable quality that may be imparted to a body or a physical system and is visible in the way things work as well as in the way that things radiate heat and light.
Higher temperatures imply more energy, and particles are close together in a solid phase.
As a result, highly energetic particles collide with nearby particles, which then collide with further particles.
Higher temperatures cause waves to move more quickly; in a solid phase, more energy is there but the particles are farther apart.
less energy is present but the particles are closer together; more energy is present but the particles are farther apart.
Learn more about energy here:
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5x + 3 < -7 or -2x - 6 < -8
Answer:
-2x - 6 < -8
Step-by-step explanation:
when the first one is smiplfid it gives us x<−2
when the second one is smiplfid it gives us x>1 which means it's correct because 8 is greater than 1
plz mark brainliest
Answer:
( −∞ , −2 ) ∪ ( 1 , ∞ )
Step-by-step explanation:
5x + 3 < -7 → x < −2 → ( −∞ , −2 )
-2x - 6 < -8 → x > 1 → ( 1 , ∞ )
5x + 3 < -7 or -2x - 6 < -8 → x < −2 or x > 1 → ( −∞ , −2 ) ∪ ( 1 , ∞ )
Graph 1) 5x + 3 < -7
Graph 2) -2x - 6 < -8
Graph 3) 5x + 3 < -7 or -2x - 6 < -8
Mrs. Johnson is buying a car that costs $15,000. She has $3,000 for a down payment. If each of her four children want to pay for the rest of the car, how much does each child need to pay?
Answer: 15-3=12 12/4=3 each child will pay 3,000
Given that
R
=
4
x
+
6
y
Find
x
when
y
=
4
and
R
=
11
Give your answer as an improper fraction in its simplest form
Answer: x= -3.25
Step-by-step explanation:
R=4x+6y 11=4x+6(4) 11=4x+ 24 11-24=4x -13=4x -13/4=x x=-3.25
11=4(-3.25)+ 6(4) 11= -13+24
how do you solve this equation by completing the square2x² + 16x - 11 = -7
SHOW YOUR WORK!!!
Answer:
x = -4 ± 3√2Step-by-step explanation:
See the steps
2x² + 16x - 11 = -72(x² + 8x) = 4x² + 8x = 2x² + 8x + 16 - 16= 2(x² + 8x + 16) = 16 + 2(x + 4)² = 18x + 4 = ± 3√2x = -4 ± 3√2Type the correct answer in the box. Use numerals instead of words.
Consider this expression.
a2 + 12 + 181
When a = -2 and b =
14, the value of the expression is
Answer:
√(-2)²+12+14=√16+14=4+14=18
Step-by-step explanation:
The value of expression (√a² + 12) + |b| when a = -2, b = 14 is 16.
What is an expression?An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division. The terms involved in an expression in math are:
Constant: A constant is a fixed numerical value.
Variable: A variable is a symbol that doesn't have a fixed value.
Term: A term can be a single constant, a single variable, or a combination of a variable and a constant combined with multiplication or division.
Coefficient: A coefficient is a number that is multiplied by a variable in an expression.
Given expression
(√a² + 12) + |b|
a = -2
b = 14
Substituting value of a and b in the expression
(√-2² + 12) + |14|
= (√4 + 12) + 14
= (√16) + 14
= 4 + 14
= 16
Hence, 16 is the value of expression (√a² + 12) + |b| when a = -2, b = 14 .
Learn more about expression here:
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X<1 is the solution to which of the following compound inequalities?
O A.X < 3 and x < 1
O B.X < 3 or < 1
O C.X > 3 and < 1
O D.X > 3 or <1
Answer: a. x<3 and x<1
can someone help check my work pls
Answer:
Rectangle T, Rectangle P, Rectangle S
Step-by-step explanation:
With a quick use of a calculator, we can convert all the diagonal lengths into decimals for easy comparison
Rectangle P = 6.7 cm
Rectangle S = 34/5 = 6.8 cm
Rectangle T = [tex]\sqrt{36.5}[/tex] = 6.04 cm
Hence from the shortest to the longest, we have
T, P, S
The circumference of a soda can is 62.8 mm. Find the radius of the soda can?
Answer:
9.99493
Step-by-step explanation:
You divide the circumference by pi to get the diameter. Then if you want the radius, you just simply cut the diameter in half!
Is the following statement true or false?
The intersection of two lines can be a line segment.
Answer:
True
Step-by-step explanation:
Answer:
false
Step-by-step explanation:
Given h(x) = 2x – 3, find h(9)
Answer:
h(9) = 14
Explanation:
h(x) = 2x - 3
h(9) = 2(9) - 4
h(9) = 18 - 4
h(9) = 14
Chelsea baby sister is 25 inches long she is weari pajamas that fit babies up to 32 inches long.which inequality can be used to find the number of inches (x) the baby can grow and still fit into pijamas
Answer:
7
Step-by-step explanation:
Answer:
32>25
it will be 7 inches
if the m
a. complementary angles
b. supplementary angles
c. linear pair
d. vertical angles
quickly plzz!!
Answer:
you're question is not clear enought
Step-by-step explanation:
I'm so confused.
Points P, Q, and S are collinear. What is m∠PQR? Straight angle P Q S is divided into 2 angles, P Q R and R Q S, by ray Q R. Angle P Q R has measure 3 x minus 5 degrees and angle R Q S has measure x plus 1 degrees. m∠PQR =
Answer:
Step-by-step explanation:
If P, Q and S are collinear, then the three points lies on the same straight line.
If the Straight <P Q S is divided into 2 angles, <P Q R and <R Q S, by ray Q R, then;
<P Q R + <R Q S = 180
Given
<R Q S =x+1
<P Q R = 3x-5
Substitute the given expression into the formula and calculate x;
3x-5+x+1 = 180
collect like terms
3x+x - 5+1 = 180
4x-4 = 180
4x = 180+4
4x = 184
divide both sides by 4
4x/4 = 184/4
x = 46°
To get m∠PQR, we will substitute x = 46 into the expression for m∠PQR.
m∠PQR = 3x-5
m∠PQR = 3(46) - 5
m∠PQR = 138 - 5
m∠PQR = 133°
Hence the measure of angle m∠PQR is 133°
The measure of angle m∠PQR is 133° and the measure of angle m∠RQS is 47° on straight angle ∠PQS.
Given that, points P, Q and S are collinear, then the three points lies on the same straight line.
The straight ∠PQS is divided into 2 angles as ∠PQR and ∠RQS, by ray QR, then ∠PQR + ∠RQS = 180°
Here, ∠PQR = (3x-5)° and ∠RQS =(x+1)°
So, (3x-5)°+(x+1)°=180°
4x-4=180
4x=184
x=184/4
x=46
Now,
∠PQR = (3x-5)°
= 3×46-5
= 138-5
= 133°
Hence, the measure of angle m∠PQR is 133° and the measure of angle m∠RQS is 47° on straight angle ∠PQS.
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Sophie has 30 coins, all nickels and dimes.
She has five times as many nickels as
dimes. How much money does she have?
Equivalent to 175 cents
She has 5 dimes and 25 nickels
====================================================
Explanation:
n = number of nickels
d = number of dimes
n+d = 30 since she has 30 coins of just these two types
n = 5d because she has five times as many nickels compared to dimes
-----------------
We'll use substitution to solve this system
n+d = 30
5d+d = 30 ... replace n with 5d
6d = 30
d = 30/6 ... divide both sides by 6
d = 5
Sophie has 5 dimes
n = 5d
n = 5*5 ... plug in d = 5
n = 25
Sophie also has 25 nickels
(5 dimes) + (25 nickels) = 30 coins total
This confirms we have the right coin counts.
-------------------
Let's find the value of each stack of coins
1 nickel = 5 cents
25 nickels = 125 cents (multiply both sides by 25)
1 dime = 10 cents
5 dimes = 50 cents (multiply both sides by 5)
(5 dimes) + (25 nickels) = (50 cents) + (125 cents) = 175 cents
175 cents = (175/100) dollars = 1.75 dollars
