Answer:
15 horas
Step-by-step explanation:
Representemos:
El número de horas que Patrice puede pintar solo = P = 10 horas
El número de horas que April puede pintar por su cuenta = A = X horas
El número total de horas que pueden trabajar juntos para hacer el mismo trabajo = T = 6
Por tanto, nuestra fórmula es:
1 / P + 1 / A = 1 / T
1/10 + 1 / A = 1/6
1 / A = 1/6 -1/10
Denominador común más bajo = 30
1 / A = 5 - 3/30
1 / A = 2/30
1 / A = 1/15
Multiplicar cruzada
A × 1 = 15 × 1
A = 15 horas
Por lo tanto, la cantidad de horas que April puede pintar cuatro habitaciones si trabaja sola es de 15 horas.
Bonjour, pouvez-vous m'aider s'il vous plaît.
Un grand père de 70ans a réuni ses 5 petits enfants.
Adélaïde est la plus jeune. Viennent ensuite les jumeaux Alain et Alex qui ont 4ans de plus. Coralie a deux ans de plus que les jumeaux et Dorothée a 7ans de plus qu'Adélaïde.
Le grand père remarque: "C'est amusant, à vous tous, vous avez le même âge que moi.".
Quel est l'âge d'Adélaïde ? (Utilisez une question).
Merci de votre compréhension.
Qu'est-ce que cela a à voir avec quoi que ce soit?
can someone explain, i'm literally sweating trying to figure it out
Answer:
54 degrees.
Step-by-step explanation:
So a fun fact is that the exterior angle is equal to the sum of the opposite two interior angles (at least within triangles).
Given this, set these values equal to each other to get the value of a.
d = a + b
2a = (a+10)+44
2a = a + 54
a = 54
The measure of the exterior angle is 54 degrees.
What value of x makes AD|| EH
Answer:
x = 3
Step-by-step explanation:
92 - 8x = 68
-8x = -24
x = 3
The two angles mentioned in the problem, if AD || EH, are congruent because they are corresponding angles.
pls tell me the answer . I am only having 10 minutes
no links
if we subtract the didgit of a two digit number, we get 4. if we interchange the digits of the number and subtract the new number from the original number we get 44. What is the original number
Answer:
Assume that the two digits are x and y (x is at ones position and y is at tens position)
if we subtract the digit of a two digit number, we get 4.
this means,
x-y=4 ..................... (1)
if we interchange the digits of the number and subtract the new number from the original number we get 44.
this means,
old no. 10y+x
new no. 10x+y
10y+x-(10x+y)=44
10y+x-10x-y=44
9y-9x=44 ........................... (2)
solve the two equations:
id these two equations are solved, we get no solution.
meaning, such a number with these given conditions do not exist
Step-by-step explanation:
What is the volume of the tank, in terms of PI?
Answer:
48[tex]\pi[/tex] cubic feet
Step-by-step explanation:
Have a good day :)
Write an inequality, in slope-intercept form, for the graph below. If necessary,
use '<="for < or ">" for >.
(-3,0)
X
5
(0, -3)
-5
Given:
The graph of an inequality.
To find:
The inequality in slope intercept form.
Solution:
The slope intercept form is:
[tex]y=mx+b[/tex]
Where, m is slope and b is y-intercept.
From the given graph it is clear that the boundary line passes through the points (-3,0) and (0,-3).
[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
[tex]y-0=\dfrac{-3-0}{0-(-3)}(x-(-3))[/tex]
[tex]y=\dfrac{-3}{3}(x+3)[/tex]
[tex]y=-1(x+3)[/tex]
[tex]y=-x-3[/tex]
From the given graph it is clear that the boundary line is a solid line and the shaded region lies above the line, so the sign of inequality must be "≥".
[tex]y\geq -x-3[/tex]
Therefore, the required inequality is [tex]y\geq -x-3[/tex].
please help meeeeeeeee
Answer:
Point D is at 3 this is the only correct point...
Step-by-step explanation:
a candle is in the shape of a cylinder. The candle has a diameter of 6 inches and a height of 5 inches, what is the volume of the candle
Answer:
141.37167in³
Step-by-step explanation:
V=
π
d
2
2
h
=
π
6
2
2
5
≈
141.37167in³
Answer:
exact: V = 45pi in.^3
approximate: V = 141.4 in.^3
Step-by-step explanation:
V = (pi)r^2h
r = d/2 = 6 in./2 = 3 in.
V = (pi) * (3 in.)^2 * 5 in.
V = 45pi in.^3
V = 141.4 in.^3
What is the solution of the system of equations?
y = 6x2 + 3x – 11
у =3x-5
-
А
(x, y) = (1, -2) and
(x, y) = (-1, -8)
B
(x, y) = (1, -1)
С
(x, y) = (-2, 1) and
(x, y) = (-8,-1)
D
(x, y) = (-1,-8)
Answer:
A) solutions (1,-2) & (-1,-8)
Step-by-step explanation:
i just used desmos, so im sorry that im not able to explain
ASAP
-WILL MARK BRIANIST
Answer: The Answers are A, and C.
Answer:
The answer is C and D
Step-by-step explanation:
If you find the percentage of 95% of 6 it will give you an answer of 5.7
.95 x.006 equals 0.0057
95x6 equals 570
0.95 x 6 equals 5.7
95/100 x 6 equals 5.7
A town has a population of 2000 and grows at 4% every year.
What would the exponential function be if you were trying to predict what the
town's population would be after 12 years?
A 2000(04)12
B 2000(0.4)12
C 2000(1.04)12 D 0.04(2000)12
Answer:
[tex] \frac{4}{?100} \times \frac{2000}{1?} = 80 \\ \\ 2000 + 80 = 2080 \\ \\ \\ 2080 \times 12 = 24960[/tex]
Given f(x) = 3 and g(x) = cos(x). What is Limit of left-bracket f (x) minus g (x) right-bracket as x approaches negative pi?
Answer:
C
cos pie= -1
so (3-(-1)=3+1=4
Step-by-step explanation:
PLEASE HELP ME ASAP !! EXPLAIN UR ANSWER
Question 9 options:
The city of Redmond is planning to build a new park by enlarging the current park by a scale factor of 3. The current park has an area of 30,125 yd².
The area of the new park is ___ yd².
30,125 × ( 3 )^2 =
30,125 × 9 =
271,125 yd^2
When the sun is at a certain angle in the sky, a 50 foot building will cast a 20 foot shadow. What is the length of the shadow in feet cast by a 20 foot pole at the same time?
Answer:
Prepara a bar graph. (Mention the scale)
Potato= 25 per kg
Tomato= 40 per kg
Cauliflower= 10 per kg
Chilli= 15 per kg
Lemon= 30 per kg
Answer:
8 ft
Step-by-step explanation:
The height of the building/pole and shadow of each are in proportion.
let x be the length of shadow of the pole, then
[tex]\frac{50}{20}[/tex] = [tex]\frac{20}{x}[/tex] ( cross- multiply )
50x = 400 ( divide both sides by 50 )
x = 8
The shadow cast by the pole is 8 ft
C
y
0
5
1
1
20
2
80
3 320
Answer:
yes
Step-by-step explanation:
HELP
find the length of the diagonals of rectangle QRST
Answer:
11:
since diagonal are equal of rectangle
QS=RT
4x+6=6x-4
6+4=6x-4x
2x=10
x=10/2
x=5
now
diagonal :4x+6=4*5+6=26
12.
again
QS=RT
9x+12=11x-10
12+10=11x-9x
2x=22
x=11
now
diagonal=9*11+12=99+12=111
What is the approximate volume of the cylinder?
Use 3.14 for r.
8cm 6cm
226.08 cm3
150.72 cm3
904.32 cm3
301.44 cm
Step-by-step explanation:
[tex](3.14){(6)}^{2} (8) \\ (3.14)(36)(8) \\ 288(3.14) \\ 904.32 {cm}^{3} [/tex]
Answer:
904.32
Step-by-step explanation:
i ready
Is 5.585786438 rational or irrational
From what I have learnt:
The number has an ending so it is rational
Irrational numbers don't end, e.g. π (3.1415926...)
Answer question b and c
Question b: find the value of x
Question c: find the value of y
Pls help me I need to get 5 points by the end of the day. so even if you arn’t 100% sure just put your answer anything helps.
Answer:
24
Step-by-step explanation:
Hanna: 20 1/4 cups per 9 servings.
We divide 20 1/4 by 9 to find the amount per serving.
20 1/4 / 9 = 81/4 / 9/1 = 81/4 * 1/9 = 9/4
Hanna's recipe uses 9/4 cup per serving.
Pocahontas: 3/4 cup more per serving than Hanna
9/4 + 3/4 = 12/4 = 3
Pocahontas uses 3 cups per serving
3 * 8 = 24
Pocahontas uses 24 cups of flour for 8 servings.
I need help Find x. 13 14 10 8
Answer:
BC/EF=AC/DF
• 24/16=21/x
• 3/2=21/x
• 3x=42
• x=14
------------------
Hope it helps....
Have a great day!!!
Helppppp
No links plz I’m already behind in class
Answer:
Umm i would go with A
*If im wrong im sorry*
if f(x)=35x+25
and g(x)=22x+18
find 5f(4)+2g(10)
Answer:
1301
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
FunctionsFunction NotationStep-by-step explanation:
Step 1: Define
Identify
f(x) = 35x + 25
g(x) = 22x + 18
f(4) is x = 4 for function f(x)
g(10) is x = 10 for function g(x)
Step 2: Find Function Values
f(4)
Substitute in x [Function f(x)]: f(4) = 35(4) + 25Multiply: f(4) = 140 + 25Add: 165g(10)
Substitute in x [Function g(x)]: g(10) = 22(10) + 18Multiply: g(10) = 220 + 18Add: g(10) = 238Step 3: Evaluate
Substitute in function values: 5(165) + 2(238)Multiply: 825 + 476Add: 13014. Which of the following sets of ordered pairs represents a FUNCTION?* 1 point
(11, -7)
(14, 7)
(14, -9)
(15, -7)
(17, 7)
(15, -13)
(13, 1)
A
(10, -6)
(16, 18)
(16, 7)
(-3, 14)
(2, 16)
(16, 20)
(20, 10)
Oo
Answer:
Option DStep-by-step explanation:
The graph of a function should pass the vertical line test in order to be a function.
Option A
Fails as repeat x-values of 14 with different y-valuesOption B
Fails as repeat x-values of 15 with different y-valuesOption C
Fails as repeat x-values of 16 with different y-valuesOption D
All x-values are different so this is a functionThe rule is .
Every domain of the function should have an unique range i.e f(x)=y
#1
f(14) has two values hence not a function
#2
f(15) has two values hence not a function
#3
f(16) has two values hence not a function
#4
Yes it's a function,every domain has an unique range
Which values represent the independent variable? (–2, 4), (3, –2), (1, 0), (5, 5) A. {–2, 3, 1, 5} B. {4, –2, 0, 5} C. {–2, 4, 3, –2} D. {–2, –1, 0, 5}
Answer:
Option A: {-2, 3, 1, 5}
Step-by-step explanation:
A function is a relationship that maps elements from one set (the domain, set of the inputs, the independent variables) into elements from another set (the range, set of the outputs, the dependent variables ).
Such that the standard notation is (x, y)
This says that the function/relation maps the element x into the element y.
So here the independent variable is x.
Now, in a relation:
{ (x₁, y₁), (x₂, y₂), ..., (xₙ, yₙ)}
The independent variable is represented with the set:
{x₁, x₂, ..., xₙ}
then, in the relation:
(–2, 4), (3, –2), (1, 0), (5, 5)
The set that represents the independent variable is a set with the first elements from each one of these four points:
{-2, 3, 1, 5}
The correct option is A.
Two friends, Parker and David, took summer jobs. The graph below represents David's earnings in dollars and cents, yy, for working xx hours.
Given the conversion factor 12/1 in over 1ft, which cube has the larger surface area?
Answer:
Solid A
Step-by-step explanation:
3 feet is 3 x 12 = 36 inches, which is less than 48 inches, so solid A has a larger surface area than solid B.
Help and anyone that helps I’ll kiss you on the lips
Four students are painting a wall mural for their school.Each student paints 5/7 square yard of wall space.What is the total area of the wall mural that is being painted
A. 20/28
B. 2 6/7
C. 4 5/7
D. 5 3/5
(NEED IT PLEASE)
Select all the expressions that have a value of 22 - 33 +29.
Answer:
B. and E.
Step-by-step explanation:
2^(2)-3^(3)+29 = 6