Answers
Answer:
y= -45x + 380 based on how many pages are left or
y= 45x based on how much he read
Step-by-step explanation:
Anyways, lets solve with the first formula
1. A week is seven days, so substitute 7 as x.
y= -45(7)+380
-45 (7) = -45 x 7 = -315
-315+380= 65
He has 65 pages left after the week which means he has not finished the book
2. The Formula
Use the formula y=mx+b
m is the slope or the rate of change. What is affecting the constant number of 380?
The 45 pages he is reading change how many pages he has left right?
That means the 45 that is changing b is the slope or m, but it is negative because its affecting how many pages he has left in a negative way.
b is the starting value
That is 380 pages left, which is what he starts off as the slope
Hence the equation is
y=-45x+380
Answer: y= -45x + 380 based on how many pages are left or
y= 45x based on how much he read
Step-by-step explanation: 1. A week is seven days, so substitute 7 as x.
y= -45(7)+380
-45 (7) = -45 x 7 = -315 2. The Formula
Use the formula y=mx+b
m is the slope or the rate of change. What is affecting the constant number of 380?
The 45 pages he is reading change how many pages he has left right?
That means the 45 that is changing b is the slope or m, but it is negative because it's affecting how many pages he has left negatively.
b is the starting value
That is 380 pages left, which is what he starts as the slope
Hence the equation is
y=-45x+380
Related Questions
Write in slope-intercept form an equation of the line that passes through the given points.
(−1,4),(3,8)
Answers
step by step explanation:
Answer:
y = x + 5
Step-by-step explanation:
Slope (m) formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m=\frac{y_2-y_1}{x_2-x_1}\\\\m=\frac{8-4}{3-(-1)}\\\\m=\frac{8-4}{3+1}\\\\m=\frac{4}{4}\\\\m=1[/tex]
y = mx + b
y = 1x + b OR y = x + b
(-1, 4)
y = x + b
4 = -1 + b
+1 +1
5 = b
y = x + 5
Check your answer using y = x + 5 and (3, 8):
y = x + 5
8 = 3 + 5
8 = 8
This statement is true
Therefore, our final answer is, y = x + 5.
Hope this helps!
please help i need this soon
Answers
Hii :)
We know that there are 2 boys, so we should divide 2 by 43. But first..
We need to add the total amount the boys spent together, then subtract,then divide
13+5=18.
The boys spent a total amount of 18 cents.
Next, we need to subtract 18 by 43.
43-18=25.
So, if we were to spilt the 25 evenly, or divide by 2, the answer would be 12.5 cents. But, we need to find what they had to start with.
43 divided by 2 is 21.5. So each boy had 21.5 cents to start with.
Hope this helps~
Learning with natalia
The volume of a right cone is 3975pi units^3. f its radius measures 15 units, find its height.
Answers
Answer:
53
Step-by-step explanation:
right cone equation: [tex]V=\pi r^{2} \frac{h}{3}[/tex] where V is volume, r is radius, and h is height.
deanna bought the poster shown below for her wall if a=11 cm,b=28cm,c=15cm,and d=17cm,what what is the area of the poster
Answers
Answer:
409[tex]cm^{2}[/tex]
Step-by-step explanation:
The area of the box wuld be c times d which is 15 times 17 which is 255.
the area of the triangle is [tex]\frac{1}{2}\\[/tex] (base x height) = [tex]\frac{1}{2}\\[/tex](28 x 11) = 14 x 11 = 154
154 + 255 = 409. area of 2D shape's unit is squared, so 409 [tex]cm^{2}[/tex]
you find the area of the rectangle which is 15 x 17 = 255
then you find the area of the triangle which is
(28 x 11)/2 =154
abs 154 + 255 = 409
7th grade math help pls i've had to redo this question 3 times cause my teacher.
Answers
Answer:
neon: 0 percent change oxide: -2 percent change copper: 2 percent change tin: 0 percent change
Step-by-step explanation:
Neon: -10+10=0
Oxide: -10+8=-2
Copper: -27+29=2
Tin: -50+50=0
Hope this helps
PLease HELP MEEEEE WITH THIS PROMLEM
Answers
Answer:
The conclusion is not correct
Step-by-step explanation:
At first it might seem as though the conclusion is correct, seeing as the table has the correct input and is done correctly, but it is the wording of the second sentence next to the table. The question says "you ask 100 randomly chosen high school students..." , Yet the second sentence says "You conclude that 15% of Residents in your town..." Therefore, they aren't relevant to the graph which means the conclusion is wrong
in the figure, each of the small squares has an area of 1. what is area of the shaded region?
Answers
Answer:
in the figure, each of the small squares has an area of 1. what is area of the shaded region?
45
Answer:
45
Step-by-step explanation:
Area of each shaded small square = 1
Number of shaded small squares = 45
Area of 45 shaded small squares
= 45 x 1
= 45
Which system of equations below will have infinite solutions?
A
Set of Equations A
B
Set of Equations B
C
Set of Equations C
D
Set of Equations D
Answers
Answer:
All
Step-by-step explanation:
Because there are no equations for them so for all we know they all could have infinite solutions.
Which of these statements are true select all that apply. Please and thank you.
Answers
Answer:
B & C
Step-by-step explanation:
Below are the hours each of three stores are open for business.
Which of the stores were open for 9 hours and 45 minutes? (TESTING QUESTION)
Gift Shop 8:45 AM – 6:30 PM
Grocery Store 8:00 AM – 5:45 PM
Hardware Store 7:30 AM – 6:15 PM
Answers
Answer:
Grocery store is the correct one ...
brainleaist please
Answer:
Yes it is grocery store.
Step-by-step explanation:
PLS HELP ME GIVING BRAINLIEST TO -FIRST- COEECT ANSWER!!
find the value of x.
Answers
Subtract 146° from both sides
-39° + x = 34°
Add 39° to both sides
x = 73°
Hope this helps
A coffee shop surveyed three groups of 5 customers to find out how many cups of coffee the customers drink in one day. This table shows the results of the three samples.
Survey Cups of Coffee
Group 1 {1, 3, 2, 2, 4}
Group 2 {4, 1, 3, 2, 1}
Group 3 {5, 4, 6, 4, 6}
Identify any surveys that are likely biased. Based on the unbiased surveys, estimate the mean number of cups of coffee the customers drink in one day.
Enter your answer in the box. Round to the nearest whole number.
cups
Answers
Answer:
The mean number of cups of coffer per person was 3.2 cups.
There is nothing in the problem that leads me to believe that the surveys were biased (Was there more to this problem?).
Therefore, we will use all of the values to find the mean. Add up all the values and we have a total sum of 48. Now, divide by 15 to get a mean on 3.2.
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
The person above is wrong
(2a) Solve the equation: 2x = 5 *
Answers
Answer:
The answer is 2.5
Step-by-step explanation:
See if you divide 5 by 2 then you get 2.5 because basically (5 hours later) so thats how you get 2.5 and I am so smart
Thank you now please give me brainliest
i need help with this pls
Answers
Answer:
1). y = -3 - 7
2). 1/4
3). 1. 117° 2. 63°
4). There are 42 students in the yearbook club and 61 in the drama club
5). 1). both are 45 ° 2). both are 3 units
Step-by-step explanation:
Valen recorded the number of siblings (brothers and sisters) each of his classmates has in the dot plot below.
Which of the following would be the best measure of center?
A.
mean absolute deviation
B.
mean
C.
median
D.
interquartile range
Answers
Answer:
it is c
Step-by-step explanation:
im is smart
To measure the center, median is the best method.
What is median?The value that divides the mathematical numbers or expressions in half is known as the median. The middle data point is known as the median value.
To find the median:
First, organize the data points in ascending order before calculating the median.
The middle number on the list is the median if the number of observations is odd.
Take the value of the (n+1)/2-th term, where n is the total number of observations, to determine this.
Otherwise, the median is the simple average of the middle two figures if the number of observations is even.
Therefore, the median is the best method to find the measure of the center.
To learn more about the median;
https://brainly.com/question/28060453
#SPJ2
Leila is buying a dinosaur model. The price of the model is x dollars, and she also has to pay a 7% tax. Which of the following expressions could represent how much Leila pays in total for the model?
Choose 2 answers:
Answers
Evaluate.
12 2/3+(9 6/8 − 3 1/4)
Enter your answer as a mixed number in simplest form by filling in the boxes.
Answers
Answer:
It is 19.7, Simplified
Step-by-step explanation:
For more, add the "Boxes" because, I don't know what you mean by "the boxes"
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is in place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Create a proportion using the form %/100 = is/of to represent the following word problem.
What is 60% of 20?
Answers
Answer:
60% of 20 is 12
Step-by-step explanation:
60 / 100 * 20 = 12
Metric Units of Length, Mass, and Capacity (PLEASE HELP)
Answers
2. cm
3. km
4. m
5. g
6. kg
7. litres
8. litres
What are the measures of Angles a, b, and c? Show your work and explain your answers.
Answers
Answer:
a= 40, b= 50, c= 115
Step-by-step explanation:
a-
There is a theorem for a that gives you the answer:
Vertical angles are congruent
If the vertical angle of a is 40°, then a is also 40°.
That is what the theorem says.
b-
This one is kind of difficult, but let me break down the steps.
Now you already know that a is 40°, and the other angle besides b is a right angle because it shows a square, or 90°.
And now you need to know another law:
Every single triangle's angle adds up to 180°.
Now, this is basically a subtraction problem.
If two of the angles are there, and you know that all of the angles of a triangle add up to 180°, then you just need to know what 90 + 40 + x = 180 is
90 + 40 = 130
130 + x = 180
Subtract 130 from both sides
130 + x = 180
-130 -130
x=50, which means that all of the angles add up to 180°, or following the law.
c-
This one is different as well.
You can very clearly see that it is a straight line that crosses 65° and c.
There is one more law as well:
A straight line is 180°.
If that line that 65 degrees and c sits on is straight, that means that-
65 + x = 180, or
180 - 65 = x
180-65 = 115, and c=115.
It also follows that law; 115 + 65 = 180, which means that it is correct.
Hope this helps :)
-jp524
The sales tax in your city is 8.8%, and an item cost $63 before tax. How much tax would you pay on that item?
Round to the nearest hundredth or cent.
Answers
Answer:
The tax would be $ 5.54
Step-by-step explanation:
You would pay $5.54
63×8.8% or 63×0.088
=5.54
find the area! please show your work (image attached)
Answers
help????????????????
Answers
.Edward deposited $9,500 into a savings account 3 years ago. The simple interest rate is 4%. How much money did Edward earn in interest?
Answers
Answer:
first, converting R percent to r a decimal
r = R/100 = 3%/100 = 0.03 per year.
Solving our equation:
A = 6000(1 + (0.03 × 4)) = 6720
A = $6,720.00
The total amount accrued, principal plus interest, from simple interest on a principal of $6,000.00 at a rate of 3% per year for 4 years is $6,720.00.
Hope it helps!!!!!!!!brainliest pls!!!!!!!Answer:
$380
Step-by-step explanation:
If he got 4% interest over the three years then he gained $380 because 9,500 divided by 100 is 95 multiplied by 4 is 380 and thats how much he gained. Total he would now have $9,880.
How do we use fractions that equal 1 to create equivalent fractions?
Do you think that we should always express fractions in the lowest terms? (9/12 = ¾)
Answers
Answer:
no
Step-by-step explanation:
The reason is if you have to add 3/4 + 7/12 you would have to convert it to have the same denominator for both fractions.
Hope this Helps!
Apply the Distributive Property to solve the equation below. What operation will you need to use first? What operation would you need to use last?
6 (t+12) =114
Answers
Answer:
See below.
Step-by-step explanation:
6(t+12)=144
6t+72=144
-72 -72
6t=72
/6 /6
t=12
So, multiplication is the first operation used, and division is the last.
-hope it helps
⟟ need help with this question:((
Answers
Answer:
73
Step-by-step explanation:
180-107=73
Answer:
B
Step-by-step explanation:
QUICK, I NEED HELP!!
Calculate the simple interest to the nearest cent.
$283 at 4.9% for 8 years.
$___
Answers
Explanation: 4.9% of $283 is $1.73. Multiply the $1.73 by 8years. This brings you to $13.64 interest. After the 8 years you will have $296.64 in your account.
help??
The figure shown is composed of three identical rectangular prisms and a cube.
Find the surface area.
Answers
Answer:
282
Step-by-step explanation:
282
Use the Distributive Property to solve the equation.
3/4 (12a + 8) = 31.2
CHECK THE PHOTO BELOW!!
Answers
Answer:
a=2.8
Step-by-step explanation:
Answer:
(3/4 * 12a) + (3/4 * 8) = 31.2
a = 2.8
Step-by-step explanation:
[tex](\frac{3}{4}*-)+(-*8)=-[/tex]
[tex]\frac{3}{4} (12a + 8) = 31.2\\\\\frac{3}{4} (12a)+\frac{3}{4} (8)=31.2\\\\9a+6=31.2\\\\\ \ \ -6 \ \ \ \ \ \ \ \ -6\\\\9a = 25.2\\\\/9 \ \ \ \ \ /9\\\\a=2.8[/tex]
Answer:
(3/4 * 12a) + (3/4 * 8) = 31.2
a = 2.8
Hope this helps!