Answers
Answer:
B, C, E, F
Step-by-step explanation:
Related Questions
To solve the system of linear equations 3 x + 5 y = 2 and 6 x + 10 y = 8 by using the linear combination method, Laura correctly multiplied the first equation by –2 to get Negative 6 x minus 10 y = negative 4 and then correctly added the equations Negative 6 x minus 10 y = negative 4 and 6 x + 10 y = 8 to get 0 = 4. How many solutions are there to the system of equations?
0
1
2
4
Answers
Answer:
x = 1
y = 1/5
Step-by-step explanation:
Given the system of linear equations
x + 5 y = 2 .... 1 ×2
6 x + 10 y = 8 .... 2×1
___,_______
2x+10y = 4
6x+10y = 8
Subtract
2x-6x = 4-8
-4x = -4
x = 1
Substitute x =1 into 1
x+5y = 2
1+5y = 2
5y = 2-1
5y = 1
y = 1/5
Hence the solution to the system of equation is (1, 1/5)
Answer:
is a:0
Step-by-step explanation:
those linear lines will never intersect
What's the equation of a line that passes through point (–1, 3) with a slope of 1?
Answers
Answer:
y = 1x + 4
OR
y = x + 4
Step-by-step explanation:
Please help me with this
Answers
Answer:
1/5
Step-by-step explanation:
Hi there!
To find the answer, use inverse operations to solve.
Multiply 7/15 by 3/7 to isolate the unknown number.
7/15 * 3/7 is equal to 0.2, which can be simplified into fraction form as 1/5.
I hope this helps!
:)
Solve the inequality x+4>6. Then graph the solutions. What are the solutions? Select the correct choice below and fill in the answer box to complete your choice.
Answers
Answer:
The ineqaulity is x > 2
Step-by-step explanation:
what 5/8x + 1/2 (1/4x + 10)?
Answers
5x+1/2(1/4+10). Distributive property
5x+x/8+5. Combine like terms
5+3x/4
3/4x + 5
Solution:
5/8x + 1/2 (1/4x + 10)
5/8x + 1/8x + 5
3/4x + 5
dos numeros sumados dan como resultado 5 y el doble de uno mas el doble del otro da como resultado 15 ¿cuales son esos numeros?
Answers
Answer:
Sean dos números A y B.
Sabemos que la suma de estos dos números es igual a 5, entonces:
A + B = 5
Y sabemos que el doble de uno mas el doble del otro da como resultado 15.
entonces:
2*(A + 2*B) = 15
esta es la única forma de interpretar esta ecuación, si en lugar de esta expresión tuviéramos 2*A + 2*B = 15 (pues tambien se puede interpretar como esto), entonces:
tenemos dos ecuaciones:
A + B = 5
2*A + 2*B = 15
Ahora, si sacamos el 2 como factor común en la segunda ecuación tenemos:
2*(A + B) = 15
si dividimos ambas partes por 2:
(A + B) = 15/2 = 7.5
(A + B) = 7.5
Esto se contradice con la primer ecuación:
(A + B) = 5.
Entonces podemos concluir que dichos números no existen.
Dejando esto de lado, nuestras ecuaciones van a ser:
A + B = 5
2*(A + 2*B) = 15
Para resolver esto, el primer paso es aislar una de las variables en una de las ecuaciones, yo voy a aislar A en la primera:
A = 5 - B
Ahora podemos reemplazar esto en la otra ecuación:
2*(5 - B + 2*B) = 15
2*(5 + B) = 15
10 + 2*B = 15
2*B = 15 - 10 = 5
B = 5/2 = 2.5
Y con la primer ecuación:
A + B = 5
reemplazamos el valor de B:
A + 2.5 = 5
A = 5 - 2.5 = 2.5
Ambos números son 2.5.
A fruit sekker buts 50 boxes of mangoes each containing 100 m mangoes at the rate of ₹1200 per box he sells each mangoes for ₹20 find his total profit and profit %
Answers
Answer:
₹40000, 66.6%
Step-by-step explanation:
Given data
Number of boxes= 50
Cost per box= ₹1200
Total cost= 50*1200= ₹60000
Total number of mangoes in all 50 boxes= 50*100= 5000 mangoes
Cost price per mago= 60000/5000= ₹12
Selling price per mango= ₹20
profit = selling price- cost price
profit= 20-12
proft= ₹8
Total profit = 8*5000
Total profit= ₹40000
%profit = 40000/60000*100
%profit= 0.666*100
%profit= 66.6%
Find the simplest form
2 2
+
9.7
Answers
there's a random space in between the 2 and 2. not sure if it's meant to be 2.2 or 22 but i'll do both.
2.2 + 9.7 = 11.9
22 + 9.7 = 31.7
Find the missing leg?
Answers
Answer:
11
Step-by-step explanation:
13×13 = 169
17 × 17 = 289
289 - 169 = 120
Square root of 120 is 10.95
Round answer to 11
How do you find the original price from a coupon or discount?
Answers
Answer: ,GJHGFHJGJH HJGLHGLKG HKLGKL G LKJKJLGKJGKGKJKKJ K
Step-by-step explanation:
How many turning points are there in the graph of y = x^3 - 2x^2 - 2 ?
A. 1
B. 2
C. 3
D. 4
Answers
Answer:
D, i think
Step-by-step explanation:
3(x+4/9)-1/2(x+ 1/3)=5/6
PLEASE HELP
Answers
Answer:
x=-2/15
Step-by-step explanation:
HELP URGENT PLEASE !!!!!!!!!!!!!!!!!!
Answers
Answer:
y=69*43
Step-by-step explanation:
this is not correct because the words are writen
Tyler has $415 in his savings Tyler has $415 in his savings account account. He earns $45 a week mowing lawns. Write and solve an equation.using b for the variable to find how many weeks will he to work to have $1315 saved?
Answers
Answer:
20 weeks
Step-by-step explanation:
1315$-415$=900$
900/45=20
Hence 20 weeks
Answer: 45b
Step-by-step explanation: Divide 1315 with 45xb.
WHAT VALUE ARE SOULTIONS TO X<7
Answers
Answer:
h M dan MB URL e5kei5
Step-by-step explanation:
h NBC qy2 il e5jrs
1 pts
An adult blue whale can eat about 102,000,000 krill a day. Write this number in
scientific notation.
Answers
help again i need help
Answers
Answer:
2.25
Step-by-step explanation:
32 divided by 14 2/9
can I please have brainiest
Help?
1. List the terms in the expression using a comma to separate each term.
This question will be graded by your teacher. *
10x + 5 + 3x + 1
Vhur answer
2. list the coefficients in the expression,
Answers
Answer:
10x, 5, 3x, 1 There are four terms
2) The coefficients are 10 and 3
PLS HELP 5TH GRADE MATH GIVING BRAINLIEST TO CORRECT ANSWER
Answers
9514 1404 393
Answer:
line A
Step-by-step explanation:
The "+6" in the equation is the y-intercept. That is the point where the graph crosses the y-axis. Line A has a y-intercept of 6, so that is the graph of the equation.
in 10 years time a father Will be twice as old as his daughter.10 years ago he was six time as old as his daughter.How old is each now
Answers
Answer:
Step-by-step explanation:
let fathers age now be x
daughters age now be y
10 years hence
(x+10)= 2(y+10)
x+10 = 2y+20
x-2y=10
10 years ago
(x-10)= 6(y-10)
x-10 = 6y-60
x-6y=-50
x-2y=10
x-6y=-50
subtract the equations
4y=60
y=15 daughter's age now
substitute y in x-2y=10
so x=40 present father's age
pls mark brainliest
Answer:
Let the age 10 years ago of daughter be ( x years ) and age of father would be ( 6x years )
After 10 years, age of father = ( 6x + 10 + 10 )
= ( 6x + 20 ) years
And Age of daughter will be = ( x + 10 + 10 )
= ( x + 20 ) years
ATQ,
6x + 20 = 2( x + 20 )
=> 6x + 20 = 2x + 40
=> 6x - 2x = 40 - 20
=> 4x = 20
=> x = 5
Hence, Present age of daughter = ( x + 10 )
= ( 5 + 10 )
= 15 years
Present age of father = ( 6x + 10 )
= 6( 5 ) + 10
= 30 + 10
= 40 years
Step-by-step explanation:
your answer Miss.
Pedro tiene 335 en monedas de 5 y de 10, si en total tiene 52 monedas ¿cuantas monedas tiene de cada una?
ayuda por favor
Answers
Answer:
37 monedas de $5 y 15 monedas de $10
Step-by-step explanation:
37 x 5 = 185
15 x 10 = 150
185 + 150 = $335
The number sentence 4×6 = 6×4 is an example of what property?
Answers
Answer:
Multiplication property of equality
Step-by-step explanation:
Katrina drinks 0.5 gallons of water per day. Which expression shows how to find the number of cups of water she
drinks in a week?
There are 16 cups in a gallon.
Answers
Answer:
Katie drinks 56 cups (3.5 gallons) of water in one week.
Step-by-step explanation:
16 - 0.5 (1/2) = 0.5 (1/2)
16 - 1/2 = 8
8 x 7 days (1 week)
= 56 cups
Katie drinks 56 cups (3.5 gallons) of water in one week.
Las medidas interiores de una piscina portátil cilíndrica son 0.85 m de radio y 0.60 m de altura.
¿Cuántos litros de agua le caben?
Answers
Answer:
es ovio
Step-by-step explanation:
investiga xd xd xd
The blizzard company sent a survey to their world of warcraft subscribers and asked if they were expected about the up coming expansion. From the survey, 16 people of the 20 people surveyed said they were excited. A) the probability that 2 people were excited without replacement is
Answers
Answer:
0.6316
Step-by-step explanation:
The computation of the probability that 2 people were excited without replacement is shown below:
There is a total of 20 people
out of which 16 are excited and the remaining 4 would be non-excited
Now the probability would be
[tex]= \frac{^{16}C_2}{^{20}C_2}[/tex]
= 0.6316
What equation has a line passing through (-1,-4) with zero slope.
Answers
Answer:
y=-4
Step-by-step explanation:
Graph a line with a slope of 1 and a y-intercept of 4.
Answers
Answer:
Step-by-step explanation:
Plot the y-intercept (0, 4). Starting at (0, 4), move your pencil point 1 space to the right, to (1, 4), and from (1, 4) up 1 space to (1, 5). Draw a straight line through (0, 4) passing through (1, 5) also.
Round 0.9271 to the nearest whole number.
Answers
Answer:1
Step-by-step explanation:
Because 9 is a rich numbers uwill borrow one to the other side so it will become 1.0000
Answer:
1 is round off of 0.9271to the nearest whole number.
Problem 2: Raylin wants to buy a new bike for $85. She already has $22 saved and her mom will
give her $2.50 for each chore she does. What is the least amount of chores Raylin must do in order
to save enough money to buy the bike?
Answer
22
23
24
25
26
Answers
Cost of a bike Raylin wants to buy = $85
Money Raylin already has = $22
Money she needs :
[tex] = \tt85 - 22[/tex]
[tex] = \tt\$63[/tex]
Thus, money Raylin still needs = $63
Money she gets from doing one chore = 2.50
Number of chores the needs to do :
[tex] = \tt \frac{63}{2.50} [/tex]
[tex]\color{plum} =\tt 25 \: chores[/tex]
Thus, Raylin needs to do 25 chores to be able to buy the bike.
Therefore, the correct option is (d) 25
use greatest common factor and distributive property to write equivalent expressions 5x+20y
Answers
Answer:
I think it is 5 if I did it right
S
