Answer: 14 pieces
Step-by-step explanation:
Let the number of pieces of paper she had at first be x.
Before starting she got seven more pieces to use. This can be written as:
= x + 7
When she was done she had 28 half pieces of paper. This can then be written as:
x + 7 = (28 × 1/2)
x + 7 = 14
x = 14 - 7
x = 7
Since x = 7, she started with:
= x + 7
= 7 + 7
= 14 pieces
12, 6, _, 1.5, 0.75 what is this its on my math assignment im slow sitting doing virtual my teacher wont help me
a water turck is filling a swiming pool. the euqation that represents this relationship is y = 19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool choose true or false for each statement
Answer:
TrueStep-by-step explanation:
Given the expression
y = 19.75x
let us see the solution from this angle
we know that
speed=distance/time
distance=speed*time
i.e quantity=rate*time
y = 19.75x
y=the quantity =number of gallons
19.5= the rate of flow
therefore
x= the time in minutes
Please help! A line has a slope of -2 and a y-intercept of -3. Graph the line using the slope and y-intercept. Which of the following points lie on this same line? Check all that apply.
Answer:
2. -1.5, 0
3. -6, 9
5. 3, -9
Step-by-step explanation:
Given parameters:
Slope = -2
y - intercept = -3
Unknown:
The point that lies on the line = ?
Solution:
To do the equation of the line,
y = mx + c
y and x are the coordinates
m is the slope
c is the y -intercept
Input the parameters:
y= -2x -3
The points that lie on the line will conform with the equation:
y + 2x = -3
1. -2, 0
y = 0 and x = -2
0 + (-2)2 = -4
2. -1.5, 0
y = 0 and x = -1.5
0 + 2(-1.5) = -3
3. -6, 9
y = 9, x = -6
9 + 2(-6) = 9 - 12 = -3
4. 2, -3
y = -3 and x = 2
-3 + 2(2) = -3 + 4 = 1
5. 3, -9
y = -9, x = 3
-9 + 2(3) = -9 + 6 = -3
6. -4, 4
y = 4 , x - 4
4 + 2(-4) = 4 - 8 = -4
The boldened coordinates line on the same line.
There are 200 students in the 7th grade class. 98% of the students in the grade are going on the field trip . How many students are going on the field trip? Please show your work :)
Answer:
196 students are going on the field trip
Step-by-step explanation:
Y = 98% * 200
Converting percent to decimal:
p = 98%/100 = 0.98
Y = 0.98 * 200
Y = 196
I hope this helps
Simplify the expression
Answer:
33
Step-by-step explanation:
You have to do the problem in the brackets and then multiply by 3
Answer:
33
Step-by-step explanation:
{(3+5)x2-5}x3
{8x2-5}x3
{16-5}x3
{11}x3
33
PLS HELP CAN SOMEONE ANSWER B AND C!!! I NEED THE GRAPHS!!! 2. The restaurant bill you and your friend received was not itemized. You ordered 2 drink refills and the egg
breakfast, for a total of $8.40. Your friend ordered 3 refills and the egg breakfast for $9.35.
(a) Write a system of equations for the situation User for the amount charged for a refill and b for the
amount charged for the egg breakfast.
(b) Graph the equations in the system
(c) Use your graph to estimate how much each item cost.
Answer:
Answer:
(a) The system of equations is:
2r + b = 8.40
3r + b = 9.35
(b) The graph is attached down
(c) By using the graph
The cost of the refill is $0.95
The cost of the egg breakfast is $6.5
Step-by-step explanation:
Let r is the amount charged for a refill and b for the amount charged for the egg breakfast
∵ r is the amount charged for a refill
∵ b is the amount charged for the egg breakfast
∵ You ordered 2 drink refills and the egg breakfast, for a total of $8.40
∴ 2r + b = 8.40 ⇒ (1)
∵ Your friend ordered 3 refills and the egg breakfast for $9.35
∴ 3r + b = 9.35 ⇒ (2)
(a) The system of equations is:
2r + b = 8.40
3r + b = 9.35
(b) The graph is attached down
From the graph
The red line represents equation (1)
The blue line represents equation (2)
The two lines intersected at point (0.95, 6.5)
(c) By using the graph
The cost of the refill is $0.95
The cost of the egg breakfast is $6.5
Order from least to greatest
Answer:
|-3|, |-3.52|, |8|, |-11|
Step-by-step explanation:
Hope this helps my guy
Answer:
Well, this is fairly simple.
Step-by-step explanation:
Those | | on either side of all the numbers are absolute value lines.
Those things are everyone's best friend. They turn every number positive, and essentially make your day better.
So, using that knowledge, I can look at your numbers and tell you with confidence that the correct order is |-3|, |-3.52|, |8|, |-11|.
If I'm wrong, go ahead, shoot me. Sounds lovely.
SIMPLE EQUATIONS
81
EXERCISE 4.1
1. Complete the last column of the table.
S.
No.
Equation
Value
Say, whether the Equation
is Satisfied. (Yes/No)
(1)
x + 3 = 0
x=3
x + 3 = 0
r-0
Answer:
Step-by-step explanation:
I think the answer should be
x + 3 = 0
x = 0 - 3
x = - 3
In the winter, a town has a low of -5°F. In
the summer, the same town has a high of
98°F. What is the difference in temperature?
[? ]°F
Answer:
-5f is lower than summer 98°f
Step-by-step explanation:
n the winter, a town has a low of -5°F. In
the summer, the same town has a high of
98°F. What is the difference in temperature?
A ticket to see your favorite baseball team cost $43.32. The price decreases by $0.25 for every game loss during the regular season. What equation could you use to find the cost C of a ticket after L losses? Represent the total change in the cost of a ticket after the team loses 24 games. What is the price of a ticket after the team loses 24 games?
Answer:
$37.82Step-by-step explanation:
Given that the cost of the ticket is
$43.32
and the price decrease is by $0.25
let the cost be C
and let the number of losses be L
the expression for the cost we be
C=43.32-0.25L
for the number of losses which is 22 we have
C=43.32-0.25(22)
C=43.32-5.5
C=37.82
Therefore the price after 22 losses is $37.82
6. Given: angle 1 and angle 2 are supplementary
Prove: p Il a
Answer:
Look at the picture. M angle1= M angle 3 might be wrong
Angle 1 and angle 2 are supplementary, so p and a are parallel by transversal properties and angle congruence.
as it is already stated that Angle 1 and angle 2 are supplementary.
from the angle 2 and 3 are supplementary according to linear pair postulate
Supplementary angles add up to 180 degrees, so we have:
angle 1 + angle 2 = 180
Using the characteristics of parallel lines and transversals, we can determine that if angles 1 and p are complementary and angles 1 and 2 are congruent, then angles p and 2 are also complementary.
according to transitive property of equality
angle1 +angle 2= angle 3+ angle 4
consecutive interior angle theorem
angle 1 = angle 3
∠1≅∠3
lines converse angles converse.
p║q
learn more about Supplementary angles here
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Find the GCF of 12, 16, and 20
Answer:
4
Step-by-step explanation:
4 is the GCF od 12, 16 and 20
Answer:
4
Step-by-step explanation:
The greatest common factor is the largest number that is a shared factor of all 3 numbers (the greatest number they can all divide into). To find the GCF, we can list all the factors of the 3 numbers and then find the largest one that is common to all three sets.
Factors of 12 are: 1,2,3,4,6,12
Factors of 16 are: 1,2,4,8,16
Factors of 20 are: 1,2,4,5,10,20
We can see that 1,2 and 4 are the numbers common to all three sets but 4 is the largest so 4 is our greatest common factor.
Hope this helped!
Renee hiked for 434 miles. After resting, Renee hiked back along the same route for 3 14 miles. How many more miles does Renee need to hike to return to the place where she started?
1 12 miles
1 12 miles
8 miles
8 miles
−1 12 miles
−1 12 miles
7 48 miles
Answer: -1 1/2
Hope it helps :)
Sixty percent of the profit was used to pay the investors. If $15,000 was not used to pay the investors, what was the
total amount of profit?
please please help i have a pretest that’s due in 40 mins i will mark anyone as 5 stars
PLSSS HELPPP I WILL GIVE BRAINLIESTTTT!!!!!!!
Answer:
yes this is a function because you cannot touch more than one point at any location on the line
Step-by-step explanation:
Answer:
Step-by-step explanation:
yes it is a function because it goes in a straight line and goes through x and y
How do you solve 25-3x40
Answer:
-95
Step-by-step explanation:
multiply before you subtract
What is the value of p? (Please Help Me!!! ASAP)
p+2−4=14
A. -2
B. 8
C. 12
D.16
E.22
Answer: D
Step-by-step explanation:
16 + 2 - 4 = 14
Which of the following functions best describes this graph
Answer: y=x^2+8x+12
Step-by-step explanation:
PLEASE HELP THIS IS DUE TODAY
jack and jill are going tubing and it costs $50 for the first 2 hours to rent the tubes and $20 for each additional hour. if they have $100 to spend, at most, how many hours can they rent the tubes?
Step-by-step explanation:
Four and half hour yes omg
Answer:
4 1/2 hours
Step-by-step explanation:
What expression is equivalent to: 100
Answer:
10 x 10, 2 x 50
Step-by-step explanation:
Two rival cleaning companies charge to dust houses. Captain Dustsalot charges
$20 per house call plus $ 12 per room, and Dedusters charges $30 per house call
plus $10 per room. Abigail wants to know how many rooms she must get dusted
so that Captain Dustsalot is more expensive than Dedusters. Which inequality
should she use to figure this out if x represents the number of rooms she gets
dusted?
Answer:
6 rooms
Step-by-step explanation:
20+12x=30+10x
12-10=2
20+2x=30
30-20=10
2x=10
10/2=5
5 rooms to make them equal so 6 rooms to make captain datalot more
The inequality is 20+12x> 30 +10x.
what is an inequality?A statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.
Given:
Captain Dustsalot charges
$20 per house call
$ 12 per room
Dedusters charges
30 per house call
$10 per room
let x represents the number of rooms she gets dusted.
so, inequality that represents rooms she must get dusted so that Captain Dustsalot is more expensive than Dedusters.
20+12x> 30 +10x
Learn more about inequality here:
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The scale factor to dilate from rectangle A to rectangle B is ?
Answer:
c
Step-by-step explanation:
a line in point-slope form that goes through the points (8,-9) and (-4,15).
Answer: The answer is 1/2
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
Which number best represents the slope of the graphed line?
A. -2
B. -1/2
C. 1/2
D. 2
Answer: b. -1/2
Step-by-step explanation:
First you need to choose 2 points in the graph
I chose (0,4) and (-2,3)
After chosing 2 points you have to plug them in the slope formula
m= y2-y1/x2-x1
m= 3-4/-2-0
m= -1/-2
Answer:
B. - 1/2
Step-by-step explanation:
Just took the test on edmentum and a got it right
Which of the following equations has a slope of -2 and passes through the point (3,-4)?
Answer:
B
Step-by-step explanation:
y=-2x+2
y=mx+b
m is slope so.here m is -2
y=-2+10.passes through the point (3,-4)
because -4=-2*3+2
-4=-6+2
-4=-4
there are 36 fifth graders in art class. The art teacher wants to arrange their picture on the wall so that one is in the first row , two are in the second row, three are in the third row, etc. How many rows of pictures will there be?
Answer:8
Step-by-step explanation:
please answers soon and answer correctly.
DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA
Answer:
da de da da da de do re mi fa so la mi AAAAAAAAAAA
Step-by-step explanation:
I can speak the language of the gods xD
Evaluate the expression m +(3n - 5)2 when m = 6 and n = 4.
m+ (3n - 5)2 = 6+ (3. 4 – 5)2
What’s the answer
Answer: 55
Step-by-step explanation:
M + (3n - 5)² = 6 + (3 x 4 – 5)^²
* 6 + (7)²
* 6 + 49 = 55
Sorry if the other answer misleads you. Here is the real answer!
The answer to the expression m +(3n - 5)² is 55.
What is Expression?A mathematical operation such as subtraction, addition, multiplication, or division is used to combine terms into an expression. In a mathematical expression, the following terms are used:
An absolute numerical number is referred to as a constant.Variable: A symbol without a set value is referred to as a variable.Term: A term can be made up of a single constant, a single variable, or a mix of variables and constants multiplied or divided.Coefficient: In an expression, a coefficient is a number that is multiplied by a variable.Given:
m +(3n - 5)²
Now, put the value of m= 6 and n= 4 we get
m +(3n - 5)²
= 6 +(3(4) - 5)²
= 6 +(12 - 5)²
= 6 +(7)²
= 6+ 49
= 55
Hence, the answer is 55.
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Huang Yi works as a paleontologist and a sculptor. She earns \$5{,}500$5,500dollar sign, 5, comma, 500 per month as a paleontologist and \$4{,}500$4,500dollar sign, 4, comma, 500 per month as a sculptor. Huang Yi wants to make more than \$50{,}000$50,000dollar sign, 50, comma, 000 this year. In the inequality shown above, PPP represents the number of months Huang Yi can work as a paleontologist and SSS represents the number of months she can work as a sculptor to reach her goal. If Huang Yi worked for 666 months as a paleontologist this year, what is the minimum whole number of months that she must work as a sculptor to reach her goal?
Answer:
4 months
Step-by-step explanation:
Let P represents the number of months Huang Yi can work as a paleontologist and S represents the number of months she can work as a sculptor to reach her goal.
If she works for P months as an paleontologist, her income would be 5500P while if she works for S months as a sculptor her income would be 4500S.
Her total income = 5500P + 4500S
Since she wants to earn more than $50000, hence:
5500P + 4500S > 50000
Given she worked as a paleontologist for 6 months, therefore:
5500(6) + 4500S > 50000
33000 + 4500S > 50000
4500S > 50000 - 33000
4500S > 17000
S > 17000/4500
S > 3.78
S > 4
The minimum whole number of months that she must work as a sculptor to reach her goal is 4 months
