Answer:
La edad actual de Beatriz es de:
30 años
Step-by-step explanation:
Planteamiento:
5e = 4b
(e+3) + (b+3) = 60
e = edad actual de José
b = edad actual de Beatriz
Desarrollo:
de la segunda ecuación del planteamiento:
e + b + 6 = 60
e + b = 60 - 6
e + b = 54
e = 54 - b
sustituyendo este último valor en la primer ecuación del planteamiento:
5(54-b) = 4b
5*54 + 5*-b = 4b
270 - 5b = 4b
270 = 4b + 5b
270 = 9b
b = 270/9
b = 30
e = 54 - b
e = 54 - 30
e = 24
Comprobación:
5e = 4b
5*24 = 4*30 = 120
what is the least common denominator of the fractions 2/3 and 3/5? HELP PLEASE
Answer:what is the least common denominator of the fractions 2/3 and 3/5? HELP PLEASE
Step-by-step explanation:
Answer:
I think the LCM is 4/5
Step-by-step explanation:
Determine if each set of ordered pairs represents a function.
Answer:
h is the a
Step-by-step explanation:
what do I do this is my lat question and I forgot how to do this
Cuanto es la respuesta de -126=14k?
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \text{k = - 9}}}}}[/tex]
Step-by-step explanation:
[tex] \star{ \text{ - 126 = 14k}}[/tex]
[tex] \text{step \: 1 \: : Intercambia los lados de la ecuación}[/tex]
[tex] \hookrightarrow{ \sf{14k = - 126}}[/tex]
[tex] \text{step \: 2 : Divide ambos lados por 14}[/tex]
[tex] \hookrightarrow{ \sf{ \frac{14k}{14} = \frac{ - 126}{14}}} [/tex]
[tex] \text{step \: 3 \: : Calcular}[/tex]
[tex] \hookrightarrow{ \sf{k = - 9}}[/tex]
[tex] \text{el valor de k es - 9}[/tex]
------------------------------------------------------------
Translation in English:
Step 1 : Swap the sides of the equation
Step 2 : Divide both sides by 14
Step 3 : Calculate
[tex] \sf{Hope \: i \: helped ! }[/tex]
[tex] \sf{Best \: regards !!}[/tex]
~[tex] \sf{TheAnimeGirl}[/tex]
Please help me this is due in 20min please!!! i’m suppoes to make a graph of that... please someone.
Answer:
im assuming this is what you mean considering the little information given.
Step-by-step explanation:
NEED HELP ASAP!!!
TEN POINTS!
I need help! I don't know how to do this
The volume of a pyramid, V, is calculated using the formula V = 1/3 AH, where A is the area of the base and H is the height of the pyramid.
Rearrange the formula to solve for the base area (A)
Answer:
A= 3V/H
Step-by-step explanation:
V=1/3 AH
multiply 3 on both sides
3V=AH
divide both sides by H
3V/H=A
which is longer 5 miles or 5 kilometers?
Answer:
im pretty sure its kilometers
Joes mother gave him 1/3 of the money in her purse. His father gave him 5.00. If they gave joe a total of 12.00, How much money did his mother have in her purse. Joes mother had $ money in her purse (Enter a number only and make sure to include the decimal and 2 numerical decimal places.)
Answer:
$21Step-by-step explanation:
let the money in her purse be $x
1/3 of the money is 1/3x
Since his father gave him $5 and the total amount became $12
the expression for the total amount would be
12= 1/3x+5
We can now solve for x
12-5= 1/3x
1/3x= 7
cross multiply we have
x= 7*3
x= $21
Therefore the money in joes mother's purse is $21
What is 79.7 rounded to the nearest ten?
Answer:
80
Step-by-step explanation:
Which equation is in standard form?
A. -3(x + y) = 10
B. y = 4x + 2
C. 5x –y = 15
D. 0.5x + 6y = 1.9
4x+12y+4z=-16 12x-12y+8z=8 4x+12y-4z=0
Rectangle PQRS will be reflected over the y-axis. What will be the coordinates of Q'M
Answer:
Coordinates for Q' Option (A) : (-5, 2)
these days more and more appliances are talking to each other and with the internet. How will all this talk help in the development of AI systems
Answer:
please mark brainliest!
Step-by-step explanation:
The internet today is driven by smartphones, tablets, and personal, given in the system Explanation, AI makes the appliances talk to each other by decoding.
Help ASAP pls
Three cars are for sale car a £14240 or car b £15870 or car c £11690 The price of car is rounded to the nearest £100. Which price changes by the greatest amount
Answer:
1 st car is your answer to the question
Solve the equation
|-2y+5|=2|4y-1|
I need help fast please, thanks
Answer:
|-2y+5|=2|4y-1|
-2y+5=8y-2
-2y-8y=-2-5
-10y=-7
y=7/10
Step-by-step explanation:
3x - 6 = 2(x + 4). find the value
Please solve for X get it done ASAP, please.
Answer:
x=150
Step-by-step explanation:
40+(x-20)+(x-10)+1/3x=360 add all like terms
x=150
solve for the equation 5x+5=3x+11
Randy is four times as old as Kenneth and Randy is 36 years older than Kenneth
i) How old is Kenneth?
ii) How old is Randy?
Answer:
Kenneth: 12 years old
Randy: 48 years old
Step-by-step explanation:
For this problem, we can use system of equations to solve. Let's use r for Randy and k for Kenneth.
Equation 1
r=4k
This equation comes from the first part, where Randy is four times as old as Kenneth.
Equation 2
r=36+k
This equation comes from the second part, where Randy is 36 years older than Kenneth.
Since we have r=, we can use substitution method.
4k=36+k [subtract both sides by k]
3k=36 [divide both sides by 3]
k=12
Now that we have found k, we can plug that into any equation to find r.
r=4(12) [multiply]
r=48
Now, we know that Randy is 48 years old and Kenneth is 12 years old.
Two fifteenths times 10
Answer:
1.3
Step-by-step explanation:
evaluate 2x^2-3x+6 for x=4
Answer:
999
Step-by-step explanation:
99l
Answer: 26
Step-by-step explanation:
x is equal to 4 so we will input 4 into the expression for x and solve.
2(4)^2 - 3(4) + 6
2(16) - 12 + 6
32 - 12 + 6
32 - 6 = 26
which answer is it ????
Answer: it is option 2 person
Step-by-step explanation:
2. What properties do you notice in the right triangle
Answer:
It has three sides
Step-by-step explanation:
Common sense
Answer:
The properties in a right triangle include
-one 90 degree angle
-the two angles that are not the right angle (90 degree angle) will always be acute angles
-the hypotenuse can easily be found by using the Pythagorean Theorem (a squared plus b squared equals c squared
-it has three sides
-it has three angles
Solve.
1) (-85) ÷ 20 =
2] 100 ÷ 60 =
[tex] - 85 \div 20 = - 4 \frac{1}{4} = - 4.25[/tex]
[tex]100 \div 60 = \frac{5}{3} = 1 \frac{2}{3} [/tex]
is it possible to build a triangle with side lengths of 5, 5, 10
Please how to do this 4−(3−5)=
Answer:
Well, subtract 3 and 5 first, you get 2, then subtract 4-2. you get 2.
Step-by-step explanation:
(3-5) = 2
4-2=2
Together a refrigerator and a desk cost $216. Find the price of each if the refrigerator costs three times as much as the desk
Refrigerator 162$ and desk cost 54
Step-by-step explanation:
Cost of refrigerator and desk =$2163x+x=2164x=216x=216/4x=54now, Cost of refrigerator = 3x = 3*54 = 162write a word phrase for
[tex] - 5 - 4n[/tex]
-5: negative five
-: minus
4n: a number times four
Put everything together.
Negative give minus a number times four.
Best of Luck!