Resolviendo el sistema de ecuaciones veremos que:
niña = 23kgniño = 28kgperro = 18kg.¿Como resolver el sistema de ecuaciones?
Aqui tenemos el sistema de ecuaciones:
Niña + niño = 51kg
Niño + perro = 46 kg
Niña + perro = 41kg
Para resolver esto, lo primero que debemos hacer es aislar una variable en una de las ecuaciones, por ejemplo, podriamos aislar "perro" en la tercera:
perro = 41kg - niña
Ahora reemplazamos eso en la segunda para obtener:
niño + (41kg - niña) = 46kg
niño - niña = 46kg - 41kg = 5kg
niño = niña + 5kg
Ahora logramos obtener la variable "niño" en terminos de la variable "niña". Podemos reemplazar esto en la primera ecuacion del sistema.
niña + niño = 51kg
niña + (niña + 5kg) = 51kg
2*niña = 51kg - 5kg = 46kg
niña = 46kg/2 = 23kg.
Ahora que sabemos esto, usamos las otras ecuaciones para encontrar el peso del niño y el perro:
niño = niña + 5kg = 23kg + 5kg = 28kg
perro = 41kg - niña = 41kg - 23kg = 18kg.
Sí quieres aprender más sobre sistemas de ecuaciones, puedes leer:
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Jodha wants to tip the pizza delivery person 20%. If the cost of the pizzas is $15.99, what would be a reasonable amount to tip?
Answer:
$3.20
Step-by-step explanation:
20%-> .20
15.99*.20
Answer:
$3.20
Step-by-step explanation:
divide 15.99 by 100
[tex]\frac{15.99}{100}[/tex]=0.1599
you now have 1%of the cost
multiply by 20 to get 20%
0.1599*20=3.198
round to 2 decimal places to get the amount he will tip
3.20
Find rise, run and slope values
From the given graph, the rise, run and slope of this graph are 1, 5, and 1/5 respectively.
Slope of a LineThis is the ratio between the rise and run i.e y-axis and x-axis.
The rise any graph is the change in the y-axis.
Rise[tex]\delta y = y_2 - y_1[/tex]
The rise in this graph will be
[tex]\delta y = 1 - 0 = 1[/tex]
RunThe run on any graph is the change in the x-axis.
[tex]\delta x = x_2 - x_1[/tex]
The run on this graph is
[tex]\delta x = 5 - 0 = 5[/tex]
Having the values of rise and run, we can find the slope of this graph
[tex]m = \frac{\delta y}{\delta x} = \frac{1}{5}[/tex]
The rise, run and slope of this graph are 1, 5, and 1/5 respectively.
Learn more on slope here;
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When a country imports more than its exports,it has a(n)
When a country imports more than how much it gives, it has a trade deficit.
i’ll mark brainlest to whoever answers this! :)
Wendi is 6 years older than Zaviel. The sum of their ages is 30. Which of these systems of equations can be used to find Wendi's age (w) and Zaviel's age (z)?
The system of equations for the ages of Wendi and Zaviel can be obtained as x = y + 6 and x + y = 30 respectively.
What is a system of linear equations?A system of linear equations is a group of equations having same number of variables and degree.
For the n number of variables n number of equations are required.
On the basis of number of solutions a system of equations can be classified as consistent and inconsistent.
Suppose the age of Wendi and Zaviel be x and y respectively.
Then, the equation for their age can be written as,
x = y + 6
And, the equation for the sum of ages is given as,
x + y = 30
Hence, the equations that represent the given case are x = y + 6 and x + y = 30 respectively.
To know more about system of equations click on,
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Evaluate the function below for x = 4.
F(x) = x3 + 2x^2 + 1
Given parameters:
x = 4
Function;
F(x) = x³ + 2x² + 1
Solution:
This is a function related problem.
A function shows the relationship between two sets usually a domain and its range.
For the given function;
F(x) = x³ + 2x² + 1
F(4) = 4³ + 2(4)² + 1
F(4) = 64 + 32 + 1 = 97
The value of the function is 97.
Answer: would be 97 :)
Step-by-step explanation:
Solve the following proportion for x
Answer:
x=500
Step-by-step explanation:
[tex] \frac{2}{3} = \frac{x}{750} \\ 3 \times x = 2 \times 750 \\ 3x = 1500\\ \frac{3x}{3} = \frac{1500}{3 } \\ x = 500 [/tex]
1. A point is a position, true or false
true true true true true true true
Lucas wants to write
3 ÷ 2 as a mixed number. He performs the division below.
3÷2=1 R1
Explain how to write the quotient as a mixed number. Drag the words to complete the explanation. Words may be used once or not at all. quotient added to remainder divisor Use the whole number part of the as the whole number part of the mixed number. Write the quotient in the numerator of the fraction and write the dividend in the denominator of the fraction.
Lucas wants to write 3 ÷ 2 as a mixed number. He performs the division below.
3 ÷ 2 = 1 R1
[tex]\sf \dfrac{3}{2} \rightarrow 1\dfrac{1}{2}[/tex]
remainder : 1
divisor : 2
quotient : 1
dividend : 3
================================================================
Use the whole number part of the Quotient as the whole number part of the mixed number.
Write the Remainder in the numerator of the fraction and write the
Divisor in the denominator of the fraction.
5a x 3 x 2b
simpilist form???
Answer:
30a[tex]x^{2}[/tex]b
Step-by-step explanation:
When you simplify an expression, you're basically trying to write it in the simplest way possible. In the end, there shouldn't be any more adding, subtracting, multiplying, or dividing left to do. For example, take this expression: 4 + 6 + 5.
Hope it helps!!!Brainliest pls!!!how to solve 7,579 x 189 pls I need help
HURRY I'LL GIVE YOU BRAINLYST At lunch, Allan drank 2 pints of chocolate milk. How many fluid ounces is this equal to?
8 fl oz
16 fl oz
64 fl oz
32 fl oz
Answer:
32 flucold correct
Step-by-step explanation:
please mark me as brainlist please
Answer:
32 FL oz
Step-by-step explanation:
16 x 2 is 32
If p and q vary inversely and p is 29 when q is 16, determine q when p is equal to 116.
Answer:
q = 4
Step-by-step explanation:
given p and q vary inversely then the equation relating them is
p = [tex]\frac{k}{q}[/tex] ← k is the constant of variation
to find k use the condition p = 29 when q = 16 , then
29 = [tex]\frac{k}{16}[/tex] ( multiply both sides by 16 )
464 = k
p = [tex]\frac{464}{q}[/tex] ← equation of variation
when p = 116 , then
116 = [tex]\frac{464}{q}[/tex] ( multiply both sides by q )
116q = 464 ( divide both sides by 116 )
q = 4
What is the surface of this rectangular prism? I-Ready
Answer:
290 square inches
Step-by-step explanation:
A=2(wl+hl+hw)=2·(5·5+12·5+12·5)=290
If Tommy gets 9 more quarters, what fraction of the bank will be quarters?
ignore the writing (18)
Answer:
it will be 18/54 I hope this helps
The area of a sector of a circle with a central angle of 6pi/5 rad is 31 km2.
Find the radius of the circle.
r =
km
Answer:
4.06 km
Step-by-step explanation:
The area of the sector of a circle is given by the formula ...
A = 1/2r²θ
Filling in the given information, we have ...
31 km² = 1/2(r²)(6π/5)
Solving for r gives ...
r² = (31 km²)(5/(3π)) ≈ 16.446 km² . . . . divide by the coefficient of r²
r ≈ 4.055 km . . . . . . take the square root
The radius of the circle is about 4.06 km.
how does y=mx+b go along with this?
Answer:
y=mx + b is doing fine
Step-by-step explanation:
THAT WAS A JOKE, but im good at linear equations can you restate the question please?
A local bakery did a survey to determine if customers preferred glazed doughnuts or frosted doughnuts. They found the ratio of glazed to frosted was 8:5. If they surveyed 260 customers,which.proportion can be used to find the number of customers who preferred glazed, x?
Answer:
73
Step-by-step explanation:
because i said so
Find the cube of 6
please tell me cube of 6
Answer:
6^3 = 216 ( to the power of three )
Answer:
here's your answer
cube of 6 is 216
please mark me as brainliest
A says to B ,"give me rupees 900 and I shall be twice as Rich As You".B replied "if you give me rupees hundred, I shall be thrice as rich as you". How much money has each?
Answer:
kindly help of the wisdom ushers believers
Step-by-step explanation:
the number important not me in the email Your the and triplets
What is an equation of the line that passes through the points
(
4
,
8
)
(4,8) and
(
−
2
,
−
7
)
(−2,−7)?
.
Answer:
[tex]y = \frac{15x + 30 - 42}{6} [/tex]
Larissa had 25 feet of ribbon. She equally divided
all the ribbon to make 8 bows for gift boxes. How
many feet of ribbon were used for each bow?
Answer:
3 feet of ribbon
Step-by-step explanation:
Simply divide 25 by 8. Then you get 3 feet with a remainder of 1.
Write 7/10 as a sum of fractions two different
ways.
Answer:
0.70, 70/100 and 14/20
Step-by-step explanation:
hope this helps
If f(x) = 3x + 2 and g(x) = 2x - 1, find gof(x).
Answer:
6x + 3 depending if i read it right
Step-by-step explanation:
if you mean
g(f(x)) then:
2(3x + 2) - 1
6x + 4 - 1
6x + 3
The theatre sold 52. Tickets to the concert at a price of 6 $ each use the distributive property to find the product of 6 x 562
52×3= 104×3=312 so its 312
im confused on this, anyone have an idea what they mean?
Answer:
This looks like the perimeter formula for a rectangle :)
Step-by-step explanation:
I could be wrong but i hope this helps
100 POINTS
The graph of f ′ (x), the derivative of f(x), is continuous for all x and consists of five line segments as shown below. Given f (0) = 6, find the absolute maximum value of f (x) over the interval [0, 5].
graph of line segments increasing from x equals negative 4 to x equals negative 3, decreasing from x equals negative 3 to x equals 0, increasing from x equals 0 to x equals 3, constant from x equals 2 to x equals 4 and decreases from x equals 4 to x equals 5. x intercepts at x equals negative 4, x equals 0, x equals 5
2
8
11
13
If x = 6 and y= 4, evaluate the following expression:
3x^2 + 3xy + y^2
Answer:
plz refer the attachment
Answer:
3*6^2 + 3*6*4 + 4^2
18^2 + 72 + 4^2
324 + 72 + 16
412
Answer: 412
(2-8j)(5+6j)
please help answer this
Answer:
-48j²-28j+10
Step-by-step explanation:
Multiple each term in the first parentheses by each term in the second parentheses (FOIL)
2×5 + 2×6j - 8j×5 - 8j×6j
Multiple the numbers
=10 + 2 × 6j - 8j × 5 - 8j × 6j
=10 + 12j - 8j × 5 - 8j × 6j
=10 + 12j - 40j - 8j × 6j
= 10 + 12j - 40j - 48j²
Collect like terms
10 - 28j - 48j²
Reorder the terms using the commutative property
-48j² - 28j + 10
Hope this was timely!
Have a great week (or weekend)…!
;-)
Please help I need this done by 3 I don't wanna fail
Answer:
(x,y)= (x+4, y+6)
Step-by-step explanation:
The translation is right 4 up 6
Answer:sorry ave trobule with this but there is a app about it it is
Step-by-step explanation:
Scientific Notation Calculator rapid tables it helps alot