Answer:
80% are 15 years old
Step-by-step explanation:
To find the percent , we need to know how many out of 100
20/25
Multiply the top and bottom by 4
20*4
-----------
25*4
80/100
This is 80%
80% are 15 years old
An aircraft flies due north from West to Z if y is equidistant from X and Z, find the bearing of X and Z
Lucy went to the pet store to buy 17 fish for her aquarium. She bought Fancy Goldfish for $13.49 each and Plecos for $3.25 each. She spent a total of $198.61. How many of each kind of fish did Lucy buy?
Step-by-step explanation:
let gold fish= X
let Plecos fish= Y
X +Y = 17................(I)
13.49X + 3.25Y =198.61........(II)
solve simuteniously to get
X = 14
Y = 3.....therefore
she bought 14 gold fish and 3 plecos fish
RECTANGULAR PRISM, I know this is simple but my brain is malfunctioning under pressure. Will give a brainlist to fastest answer. Thanks :)
L = 7 in
W = 8 in
H = 9 in
Answer: lxWxH
7x8x9=504in
Step-by-step explanation:
Determine the type of triangle that is drawn below.
Answer:
Step-by-step explanation:
Since each angle is different it is scalene. Since all angles are less than 90 degrees it is acute.
So this is a Scalene Acute triangle.
Answer: Scalene Acute
Step-by-step explanation:
An acute triangle has all three angles less than 90 and a scalene triangle has no equal sides.
3x + 5 > 16
x is an integer.
Find the smallest value of x.
Answer:
4
Step-by-step explanation:
3x + 5 > 16
3x > 16 - 5
3x > 11
x > 11 / 3
x > 3.6666...
The smallest value would be 4.
Answer:
4
Step-by-step explanation:
Given
3x + 5 > 16 ( subtract 5 from both sides )
3x > 11 ( divide both sides by 3 )
x > [tex]\frac{11}{3}[/tex] , that is
x > 3 [tex]\frac{2}{3}[/tex]
If x is an integer then the smallest value of x is 4
um- answer and explanation please
Answer:
a. 11
b. 18
Step-by-step explanation:
8 + 3 = 11
8 + 8 + 2 = 18
Answer:
I do not know I think the person that did is on somthing
Step-by-step explanation:
Find AC please, help is very much appreciated.
Answer:
AC ≈ 67.9
Step-by-step explanation:
15² = 9 (3x + 1 + 9)
225 = 9 (3x + 10)
225 = 27x + 90
135 = 27x
x ≈ 19.29
AC = (3x + 1 + 9)
AC = 3 (19.2857...) + 1 + 9
AC = 57.857... + 1 + 9
AC = 57.857... + 10
AC ≈ 67.9
Do the side lengths 9, 12, and 16 make a Pythagorean Triple?
Answer:
hmmmmmm i think im not 100% sure
Step-by-step explanation:
mark brainliest if right and if wrong then give 2 stars please
Redbox rents out both video games and movies. They charge $2 for each video game and
$1 for each movie rented. Last week the total number of rentals was 114 and the machine
made a total of $177. How many movies and games were rented? What are the two
equations we can make? One is about the price, the other is the total rentals.
Answer:
1x + 2y = 177 (price)
x + y= 114 (rentals)
Step-by-step explanation: x= movies y= video games
Answer:
56
Step-by-step explanation:
add and then multiply
I NEED HELP
A-2x-y
B- x^2/y
C-x^2-y
D- 2x/y
Answer:
Answer is A hope this helps
Step-by-step explanation:
The line y = mx + c passes through the points (-2, 1) and (4,4).
Write down a pair of simultaneous equations involving m and c.
Solve the simultaneous equations.
Answer:
Step-by-step explanation:
Insert x for -2 & 4 and y for 1 & 4
1=-2m+c, 4=4m+c
solve the equation, m=1/2, c=2
Answer:
y = 1/2m + 2
Step-by-step explanation:
1 = -2m + c (1)
4 = 4m + c (2)
2 = -4m + 2c (1*)
(1*) + (2) = 6 = 3c
c = 2
y = mx + 2
4 = 4m + 2
2 = 4m
m = 1/2
so y = 1/2m + 2
please help me simplify this
Answer:
................................
A teacher is planning a class trip to the aquarium. The aquarium requires 2 chaperones for every 15 students. The teacher plans accordingly and orders a total of 85 tickets. How many tickets are for chaperones, and how many are for students?
Answer:
75 student tickets and 10 chaperone tickets
Step-by-step explanation:
First find out how many groups there are total by dividing 85 by 1 group total of 17 (15 students 2 chaperones).
85 / 17 = 5
Since you now know there are five groups of 15 students and 2 chaperones all you have to do is multiply 5 time 15 students and 5 times 2 chaperones.
15 x 5 = 75 for students
5 x 2 = 10 for chaperones
HELP PLEASE
find the solution to the system of equations
PLEASE HELP ME I HAVE A HW DUE AFTER 30 MIN
Answer:
C
Step-by-step explanation:
Mean for the ferret: 44
Mean for the fisher: 56
Answer: C
HELP ASAP PLEASE!!!
What is the degree measure of ABC given that A=25 & C=135?
Answer:
m∠ABC = 110°
Step-by-step explanation:
By the property of exterior angle of a triangle,
"Exterior angle of a triangle is equal to the sum of two opposite interior angles"
m∠BAC + m∠ABC = 135°
25° + m∠ABC = 135°
m∠ABC = 135° - 25°
= 110°
Therefore, measure of angle ABC is 110°.
PERCENTS!!
due today help!!!! (:
Few more questions due tonight help is greatly appreciated!! Here is the questions:
1. Jose is making a pitcher of lemonade. The recipe requires 4 cups of water for every 1/2 cup of sugar. How many cups of water will he need if he uses one cup of sugar?
2. Marquise uses 1/3 of a yard of fabric to make 1/2 of a blanket. If Marquise wants to make a blanket for his sister, how many yards of fabric will he need?
3.
On a map of Durham, Hillside High School and Rogers-Herr Middle School are 6 1/2 inches apart. If every inch represents 1/4 of a mile, how many miles apart are the two schools?
4.Walter is making a paper-mache statue for art class. To make the paper-mache sticky, he needs to combine 1/2 a cup of flour for every 1 cup of water and 2/3 cup of glue. If Walter used one cup of glue, how many cups of flour will he need?
Answer:
1) 8 cups
2)2/3 of a yard
3)1 5/8 miles
4) 3/4 cups
Step-by-step explanation:
I hope this helps :)
Let me know if you need an explanation for any of them
Which is the best prediction for the number of minutes
of exercising Sam will do if she spends 30 minutes
watching television that day?
45 minutes
0 72 minutes
O 83 minutes
O 118 minutes
Answer:
72 mins
Step-by-step explanation:
The number of minutes Sam spent on exercising is 72 minutes. Therefore, option B is the correct answer.
What is the function?Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.
The given function is y = -0.78x + 95
Let x be the number of minutes of television Sam watched each day and y the number of minutes she spent exercising.
Here, x=30
Substitute x=30 in the given function, we get
y = -0.78(30)+95
= -23.4+95
= 71.6
≈ 72 minutes
Therefore, option B is the correct answer.
To learn more about the function visit:
https://brainly.com/question/28303908.
#SPJ7
"Your question is incomplete, probably the complete question/missing part is:"
The table compares x, the number of minutes of television Sam watched each day, to y, the number of minutes she spent exercising. The function y = -0.78x + 95 models the data in the table.
Which is the best prediction for the number of minutes of exercising Sam will do if she spends 30 minutes watching television that day?
A. 45 minutes
B. 72 minutes
C. 83 minutes
D. 118 minutes
Need help on this I don’t understand.
Answer:
(9.2 , 0)
Step-by-step explanation:
vertex: (4.6 , 12.2)
parabola: y = a (x-4.6)² + 12.2
pass (0,0): 0 = a (0-4.6)² + 12.2
a = - (12.2/21.16)
2nd root (x , 0): y=0
0 = a (x-4.6)² + 12.2 (x-4.6)² = - 12.2 / a = -12.2 / (- (12.2/21.16)) = 21.16
x - 4.6 = ± √21.16 = ± 4.6
x = 0 or x = 9.2
Please help due today I will give brainliest!
Find the slope of the line that passes through each pair of points
2. (0,1), (1,-2)
3. (2,5), (3,6)
4. (6,1), (-6,1)
5. (4,6), (4,8)
6. (5,2), (5,-2)
7. (2,5), (-3,-5)
8. (9,8), (7, -8)
9. (-5,-8), (-8,1)
10. (-3,10), (-3,7)
11. (17,18), (18,17)
12. (-6,-4), (4,1)
13. (10,0), (-2,4)
14. (2,-1), (-8,-2)
15. (5,-9), (3,-2)
16. (12,6), (3,-5)
17. (-4,5), (-8,-5)
18. (-5,6), (7,-8)
Answer:
Step-by-step explanation:
2. (-2-1)/(1-0)= -3/1 = -3
3. (6-5)/(3-2)= 1/1= 1
4. (1-1)/(-6-6)= 0/-12= 0
6. (-2-2)/(5-5)= -4/0 = undefined
5. (8-6)/(4-4)= 2/0 = undefined
7. (-5-5)/(-3-2)= -10/-5= 2
8. (-8-8)/(7-9)= -16/-2= 8
9. (1+8)/(-8+5)= 9/-3= -3
10. (7-10)/(-3+3)= -3/0= undefined
11. (17-18)/(18-17)= -1/1= -1
12. (1+4)/(4+6)= 5/10 = 1/2
13.(4-0)/(-2-10)= 4/-12 = -1/3
14. (-2+1)/(-8-2)= -1/-10= 1/10
15. (-2+9)/(3-5)= 7/-2= -7/2
16. (-5-6)/(3-12)= -11/-9= 11/9
500 photos in a album each page holds 5 if 55% of the album is empty how many pages are filled with photos
Answer:
45 pages are filled with photos
Step-by-step explanation:
500 * 0.55 = 275
500 - 275 = 225
225/5 = 45
R
=
3
x
+
9
y
Find
x
when
y
=
6
and
R
=
7
TWINKLE TWINKLE LITTLE STAR
HOW I WONDER WHAT YOU ARE
UP ABOVE THE WORLD SO HIGH
LIKE A DIAMOND IN THE SKY
lol sorry-
your question ain't properly readable-
For a sample size of 120 and a population parameter of 0.4, what is the standard deviation of the normal curve that can be used to approximate the binomial probability histogram?
I need help!! thanks. Will crown.
Answer:
d(10)=20?
Step-by-step explanation:
Hope it helps
can i have the crown(brainliest)?
what is the equivalent slope intercept for 5x = 4 + y
Answer: -5
Step-by-step explanation:
Answer:
y = 5x - 4
Step-by-step explanation:
pls help! No wrong answers pls ;v;
5 × 0.8 = 4
and that's all there is
Which item in nature does NOT follow the Fibonacci Sequence *
Pinecone
Artichoke
Nautilus Shell
Pineapple
Answer:
all follow the sequence
Step-by-step explanation:
Pinecone and Pineapple - Scales and bracts are modified leaves, and the spiral arrangements in pine cones and pineapples reflect the spiral growth habit of stems. To confirm this, bring in a leafless stem from some tree or shrub and look at its buds, where leaves were attached.
Artichoke - The spiral of an artichokes leaves can be described by the Fibonacci Sequence. This sequence is a simple mathematical pattern where each successive number in the sequence is equal to the sum of the two preceding numbers, beginning with 0 and 1.
Nautilus shell - Each number is the sum of the two previous numbers. An approximation of a logarithmic spiral, created by drawing circular arcs connecting the opposite corners of squares in the Fibonacci tiling; this one uses squares of sizes 1, 1, 2, 3, 5, 8, 13, 21, and 34.
What is the definition of a tangent in math
Answer:
In geometry, the tangent line (or simply tangent) to a plane curve at a given point is the straight line that "just touches" the curve at that point. Leibniz defined it as the line through a pair of infinitely close points on the curve. ... The word "tangent" comes from the Latin tangere, "to touch".
Step-by-step explanation:
A straight line touching a curve at a single point without crossing it there is tangent.
The side of a hill makes a 12° with the horizontal. A wire is to be run from the top of a 175 foot tower on the top of the hill to a stake 120 ft down the hillside from the base of the tower. What length of wire is needed
Answer:
231.9ft
Step-by-step explanation:
We would be solving this problem by using the cosine rule.
The length = (pq)² + (qr)² -2 * pq * qr * cos102⁰
= 120² + 175² - 2*120*175 (-0.2079)
= 14400 + 30625 + 8731.8
= 53756.8
Length² = 53756.8
We take the square root of both sides
Length = √53756.8
Length = 231.89 feet
This is the length of the wire that is needed.
Thank you
