Answer:
A Leticia le falta siete doceavos de las páginas del libro por leer.
Step-by-step explanation:
Constatamos que la proporción de páginas por leer es igual a la totalidad de páginas menos las proporciones leídas durante los tres días:
[tex]r = 1 -r_{1}-r_{2}-r_{3}[/tex] (Eq. 1)
Donde:
[tex]r_{1}[/tex] - Proporción leída en el primer día, adimensional.
[tex]r_{2}[/tex] - Proporción leída en el segundo día, adimensional.
[tex]r_{3}[/tex] - Proporción leída en el tercer día, adimensional.
Si sabemos que [tex]r_{1} = \frac{1}{3}[/tex], [tex]r_{2} = \frac{2}{8}[/tex] y [tex]r_{3} = \frac{3}{9}[/tex], entonces la proporción de páginas por leer es:
[tex]r = 1-\frac{1}{3}-\frac{2}{8}-\frac{3}{9}[/tex]
[tex]r = 1-\frac{1}{3}-\frac{1}{4}-\frac{1}{3}[/tex]
[tex]r = 1-\frac{2}{3}-\frac{1}{4}[/tex]
[tex]r = 1-\frac{8-3}{12}[/tex]
[tex]r = 1-\frac{5}{12}[/tex]
[tex]r = \frac{7}{12}[/tex]
A Leticia le falta siete doceavos de las páginas del libro por leer.
The school cafeteria orders 4 cartons of regular milk for every 5 cartons of chocolate milk. The ratio of cartons of regular milk to cartons of chocolate milk is 4 to 5. Type a ratio that is equivalent to 4 to 5
Answer:
20:25
Step-by-step explanation:
To find an equivilant Ratio is very simple. You only need to multiply both numbers by the same number. FOr example 3:6. To find an equivilant ratio for that you can multiply 3 by 4 and 6 by 4 to get 12:24 or 1:2
Hope this helps!
What is 3/7 to the 2nd power?
Answer:
9/49
Step-by-step explanation:
(3/7) 2
(3/7)(3/7)=
3^2/7^2
=9/49
I hope this is right!
1. Henry is using a total of 40 ft. of lumber to make a bookcase. The left and right sides of the bookcase are each 8 ft. high. The top, bottom, and two shelves are all the same length, labeled .
Part A: Construct an equation to model the situation. (5 points)
Part B: Solve the equation. Show all your steps.
(5 points)
Part C: Use the solution to answer the question in a complete sentence. (5 points)
Answer:
Part A:
40 = 16 + 4·s
Part B:
The length of the top and bottom and the two shelves are each = 6 ft.
Part C:
The width of the bookshelf is 6 feet
Step-by-step explanation:
The given parameters are;
The length of the lumber Henry is using to make the book case = 40 ft.
The height of the left and right side of the book case = 8 ft. each
The length of the top and bottom and the two shelves are each = s
Therefore, we have;
Part A:
The equation is given as follows;
40 = 8 × 2 + 4·s = 16 + 4·s
40 = 16 + 4·s
Part B:
The solution of the equation is given as follows;
40 = 16 + 4·s
4·s= 40 - 16 = 24
s = 24/4 = 6 ft.
s = 6 ft.
The length of the top and bottom and the two shelves are each = 6 ft.
Part C:
The width of the bookshelf is 6 feet
f(x) = -x2 – 10
Find f(-4)
Answer:
-2
Step-by-step explanation:
susitute for x and solve
what is the range of the function?
a. 1,2,3,4
b. 2,4,9,16
c. 1,2
d. 1,2,3,4,9,16
Answer:
the answer is b
Half a number increased by 4 is the same as six less than that number
Answer:
the number is 20
Step-by-step explanation:
Denote the number as "x",
write out the problem:
(1/2(x)) + 4 = x - 6
inverse operations
(1/2(x)) + 4 = x - 6
+6 +6
(1/2(x)) + 10 = x
-(1/2(x)) -(1/2(x))
10 = ((1/2)x)
*2 *2
20 = x
PLEEASE help as soon as posible
factor 18x^2 - 98y^2
Answer:
(3x+7y)⋅(3x−7y)
Step-by-step explanation:
hopefully this helps!
Write the equation of the line that contains the points (0, -5) and (3,-1).
rfeahjuiol;grehujil;keuipyhraeglhui;aSEDVFRIULGH C
Can someone tell me the answer plz I’ll give you a brainlist and points NO WRONG ANSWERS
Answer:
x=43
Step-by-step explanation:
Subtract 61 from both sides giving:
x=43
Answer: x=43
Step-by-step explanation:
subtract 61 on both sides to isolate the variable. Divide 1x by 43 to get 43
could someone explain how to do this? i don't get it
Answer:
y=29x+5, I think that's the answer
There were
32
3232 volunteers to donate blood. Unfortunately,
n
nn of the volunteers did not meet the health requirements, so they couldn't donate. The rest of the volunteers donated
470
470470 milliliters each.
How many milliliters of blood did the volunteers donate?
Answer:
470(32 - n)
Step-by-step explanation:
Here are the given:
> 32 volunteers
> n volunteers who didn't donate
> 470 mL each
So your expression is: 470(32 - n).
Why?
Subtract the 32 volunteers who want to donate blood from the volunteers who were not able to donate then multiply it by 470.
Answer:
dam just imagen that in real life
Step-by-step explanation:sorry haha ik its not about that but it had to be said
The ratio of two numbers is 2:5 and their difference is 63. The larger number is
Answer:
The larger number is 105
Step-by-step explanation:
When proportionally increased the numbers 2:5 can be multiplied by 21.
This gives you a ratio of 42:105
The difference of those numbers are 63
Hope that helps, let me know if this answer does or don't!
Decimals Decimals Decimals
Answer:
b
Step-by-step explanation:
.7 is in the tenths place. so it is .70
Answer:
B. .7 is equal to .70 which is a C for her grade
Divide 36 into two parts in such a way that 1/5 of one part is equal to 1/7 of the other.
Answer:
I think its going to be 1/6
Step-by-step explanation:
The linear function y
2 + 3
Answer:
your answer is 5y
Step-by-step explanation:
10 A man spends 88% of his salary. He now has £216 left.
What is the man's salary?
Answer:
£1,800
Step-by-step explanation:
Help Needed!! Find The Measure Of Angle A In The Triangle
Answer:
A=40°
Step-by-step explanation:
All angles in a triangle add up to 180°, so we take 60 away from 180 because we know that angle.
180-60=120
Next, we add up the number of x,
10x+20x=30x
Third, we need to find out what x is, so we divide 120 by 30, which gives us 4.
x=4
to find out what 10x is (A), we multiply 4 by 10
4×10=40
A=40
In the year 2003, the age-adjusted death rate per 100,000 Americans for heart disease was 226.8. In the year 2008, the age-adjusted death rate per 100,000 Americans for heart disease had changed to 203.2.
Answer:
we got better
Step-by-step explanation:
203 is lower than 226
The temperature in
Kansas is 95°Fand the
temperature in Arizona is
14° cooler. What is the
temperature in Arizona?
Answer:
it is 81 degrees in Arizona
Step-by-step explanation:
95-14 is 81
Can someone help? I will mark brainlest whenever I get the option to!!
Answer:
8. x=18 9. x=33 10. x=65 11. x=19 12. x=59
Step-by-step explanation:
8. The angles are essentially vertical so they have to be equal to each other.
42=2x+6 subtract 6 from both sides 36=2x x=18
9. These angles are supplementary and equal 180 when added together.
98+(3x-17)=180 subtract 98 and add 17 to both sides 3x=99 x=33
10. Angles are essentially vertical so they are equal to each other.
2x+2=3x-63 add 63 to both sides subtract 2x from both sides 65=1x
11. Angles are supplementary so they equal 180 when added together.
112+(4x-8)=180 subtract 112 and add 8 to both sides 4x=76 x=19
12. Angles are vertical so they are equal to each other.
(3x-33)=(2x+26) add 33 to both sides and subtract 2x 59=1x
what would be the perpendicular slope to 8
Answer:
-1/8
Step-by-step explanation:
perpendicular slope to 8 is -1/8
Please look at the picture! Thank you I
Answer:
I think it’s the line before 0,
Step-by-step explanation: if it’s wrong I’m truly sorry Im just trying to help the best I can
Tenley is making a square frame for her painting. She is using 4 pieces of wood that are each 2.25 feet long.
How much wood will Tenley use to make the frame?
Tenley will use ____________ feet of wood.
Answer:
Tenley will use _9_ feet of wood.
Step-by-step explanation:
The key here is to multiply 4 by 2.25. If just adding 2.25 4 times is easier, go for that. Either way the correct answer will be 9 feet.
please help me quickly!
Answer:
6xy+4
Step-by-step explanation:
You survey the students in your class to find out what kinds of movies they like to watch. The students were given the following choices: Comedy (C), Horror (H), Drama (D), Action (A), Romance (R). The following were the results of your survey: C, C, R, R, D, R, H, H, C, A, A, R, A, A, A, R, R, H, H, H, C, H, A, R, D, D, D, D, H, R a. Make a frequency table for the movie genres.
Answer:
I'm not sure but I think the awnser is
4 C
8 R
5 D
and 7H
Using the data given in the question, given below is the frequency table for the movie genres liked by the students.
Movie genre Number of students
Action 6
Comedy 4
Horror 7
Drama 5
Romance 8
What is frequency distribution table?A frequency table lists a set of values and how often each one appears. Frequency is the number of times a specific data value occurs in your dataset.
Learn more about frequency table here
https://brainly.com/question/12576014
#SPJ3
Add.
-7/2 + 5/4
PLS HELP
Answer:
-9/4 or -2 1/4 (it is the same amount)
Step-by-step explanation:
2 lbs. of halibut costs $16. what does it cost for 7 lbs. of halibut
Answer:$64
Step-by-step explanation:2x3=6 16x3=48 48+16=$64
please answer. i need help.
17. True (bc anything multiplied by 0 equals 0)
18. True (bc 13=13)
19. True (bc 6=6)
20. True (bc 7(x-3)=7x-21)
21. True (bc the negative sign cancels out the positive sign)
22. True (bc y=3 and 3=y are the same)
23. True (bc they are the same just rearranged)
24. True (because x and z both equal -1)
25. True (anything multiplied by 1 stays the same)
can someone please helpppp
passes through (8,-6) perpendicular to 2x+y=-4
Answer: y = 0.5x - 10
Step-by-step explanation:
2x + y = -4
y = -2x - 4
perpendicular, so slope = 1/2
y + 6 = (1/2)(x - 8)
y = (1/2)x - 10
