5x+7y=25
5x-2y=-65
subtract both of the equations
5x-5x=0
7y--2y= 7y+2y=9y
25--65=25+65=90
0+9y=90
9y=90
divide both sides by 9 to get y by itself
9y/9=90/9
cross out 9 and 9 which becomes 1*1*y=y
90/9=10
y=10
find x by using the substitution method
5x+7y=25
5x+7(10)=25
5x+70=25
move +70 to the other side
sign changes from +70 to -70
5x+70-70=25-70
5x=-45
divide both sides by 5 to get x by itself
5x/5=-45/5
cross out 5 and 5 then becomes 1*1*x=x
-45/5=-9
x=-9
answer:
(-9,10)
Question 3
The equation y = 3x − 3 can be used to find y when x is given. Which question can be answered using this equation?
Select one:
Daniel is 3 years younger than 3 times Allison's age. How old is Daniel?
The cost of the necklace is more than 3 times the cost of the earrings. What is the cost of the earrings?
Mr. Byrd worked 3 hours less than 2 times his regular shift on Tuesday. How many hours is his regular shift?
Jacqui and Alex spent 3 hours more than 3 times the original time planned to build the new deck on their house. How much time did they spend?
Please help! Tysm if you do!
Answer:
A
Step-by-step explanation:
We can solve this problem by eliminating wrong answers
It can be b because there is no 3
It can be c because the equation would be 4+3
And it can be d because the equation would be 3x+4
so it must be a
Answer:
option A is correct
as additional page costs is not fixed so there will be any value of x with multiply by 4
and the fixed remain only one time so it remains fixed and 3 is also fixed.
A line that passes through the point (-3,-6) has a slope of 4/3. What is another point on this line
Answer:
3,3
Step-by-step explanation:
Dog food bad contains 18 cups to fill it up his friend dog eats 1 1/2 each day he says he'll be able to feed his dog for 27 days that true?
Answer:
It's not true because 18 cups will only last 12 days, not 27 days.
Step-by-step explanation:
1 1/2 = 3/2
3/2(27) = 40.5 cups
18 = 3/2c
c = 12
If x =7/8 cm, y =1/4 cm, and z = 5/8 cm, what is the volume of the rectangular prism above?
Answer:
35/256
Step-by-step explanation:
Assuming x,y, and z are the sides of the prism, then you have to multiply all the sides to the the volume.
Do that, and you get 35/256
I hope this helped, and please mark this as brainliest!
for what value of x does the function have an output of 9, given that f(x)=2x+5
x= 2
2(2) + 5 = 9
Hope this helps!
PLEASE HELP!!
Find the volume of the following
square pyramid.
Help Resources
8 cm
6 cm
6 cm
V = [?] cm3
Enter
Answer:
96
Step-by-step explanation:
The volume of the square pyramid is 96 cm³.
How to find the volume of a square pyramid?
You can locate the extent of a normal square pyramid with the use of the volume formula= base location² × height / 3. Take be aware that the bottom vicinity equals the square of the pyramid's base side period. However, the peak is the perpendicular distance between the pyramid's base and the pyramid's vertex.
By using the given formula, we get
V= a² h/3
=6² * 8 / 3 = 96
The answer is 96 cm³.
The volume of a pyramid is found using the formula V = (1/3) B*h, where 'B' is the base area and 'h' is the height of the pyramid.
Learn more about the volume of a pyramid here: https://brainly.com/question/21510592
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Romeo has captured many yellow-spotted salamanders. He weighs each and
then counts the number of yellow spots on its back. Which trend line best fits
the data?
Answer: D.
Step-by-step explanation:
Answer:
It's D
Step-by-step explanation:
I took the AP3X quiz and got it right. Just make sure you don't just click D on your end without looking at the graph in the question.
The system of equations
(2x - y = 2(x+1)
has
ly=-2
no solution
one solution
infinitely many solutions
An item that originally cost 50$ is marked down 20%. Find the new cost of the item after the discount
Help me now or else
Answer:
the answer is C
Step-by-step explanation:
Answer:
c. -3.8
Step-by-step explanation:
i hope this helps, have a nice day :)
Find the volume of the composite figure
2 in.
3 in
6 in
5 in.
8 in
The volume of the composite figure is
cubic Inches.
Select all expressions that are equivalent to 2 · 2 · 2 · 2 · 2 · 2
A. 23. 23
B. 22. 24
C. 25
D. 4(22)
E. (22)
Answer:
its 64
Step-by-step explanation:
2 x 2 = 4
4 x 2 = 8
8 x 2 = 16
16 x 2 = 32
32 x 2 = 64
If you flip a coin and spin a ten-part spinner numbered from 1 to 10, what is the probability that you will get heads and an even number?
Answer:
1/4
Step-by-step explanation:
Coin 2 sides, 1/2 chance to get heads.
Spinner 10 numbers, 5 even, 1/2 change to get even.
1/2x1/2
1/4
I NEED HELP FAST!!!! WILL GIVE BRAINLIEST.
Answer:
Step-by-step explanation:
Ok what’s the problem
5 5+4x6 =
Orders of operation
Answer:
i got u fam
its 4x^6 + 10
PLEASE HELP ASAP!!!. :)
Answer:
it is the 3rd one on the page
Evaluate the expression. 1/7^9⋅1/7^−6 The value of the expression is .
Answer:1/343
Step-by-step explanation:
you can use the exponent rule so you would be left with (1/7)^9-6 which would simplify to (1/7)^3. The if you not using a calulater, you can take 1/7 and individually cube the numbers to find the final answer. So 1^3/7^3. This would simplify to 1/7^3. 7^3 is 343. This leaves you with the final answer.
peter pays $6.20 for a gallon of petrol in Canada. His friend Doug pays $1.50 per liter in Barbados. Which petrol is more expensive?
Answer:
Canada
Step-by-step explanation:
Multiply $1.50 by the amount of liters in a gallon 3.78541 and it is less than 6.20
Answer:
peter pays more money
Step-by-step explanatipeter is more
because 4 liters is a bit over a gallon and each liter is 1.50 so 1.50 x 4 is 6 dollars so peter pays more money
Tiya flipped a coin 40 times. The coin landed heads up 16 times and tails up 24 times.
Part A: Based on the results, what is the experimental probability of the coin landing heads up? Show your work.
Part B: What is the theoretical probability of the coin landing heads up? Show your work. no files please
Answer:
A) 16/40 or 4/10
B) 1/2
Step-by-step explanation:
Please help me as soon as possible; your help is highly appreciated .The topic is Probability. I will give 5 stars rating and 15 points to whoever helps me first ,and correctly does so.NO LINKS OR I WILL REPORT!!!
Answer:
1/3 because he took one red and there were 4 but now there is 3.
I WILL GIVE YOU 58 POINTS!!!!!!!!!
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Input(x) Output(y) 32 20 14 2 ? − 6 -2 -14 -10 ? Complete the function table and write the function rule.
Answer:
3rd box = 6
6th box = -22
y=x-12
output = input-12
Step-by-step explanation:
The input value correspond to output value = -6 is +6
The output value correspond to input value = -10 is -22
What is function Rule?A function rule is the relationship between the dependent and independent variables in the form of an equation.
As per the given data if we follow the pattern we get a relation between Output and Input as:
Output= Input-12
or, input= Output + 12
So, we have to find the input when output= -6
Input = -6+12
=+6
Now, to find the output when input is -10
output= -10-12
=-22
Learn more about function rule here:
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Please answer this fill it to least to greatest
Answer:
7, 7 1/8, 7 3/8, 7 5/8, 7 3/4, 8, 8 1/4, 8 1/2, 8 7/8
Step-by-step explain:
7 is the smallest number in the given numbers. 7 1/8 is the second smallest because 1/8 is smaller than 1/4. You can also think of it like you have a pizza/pie/cake and 1/8 of that cake is 1 piece of the cake that has 8 pieces in total. 1/4 on the other hand is a bigger piece. You can use this information to figure out future problems. 1/4 is the same as 2/8. In other words, 1/4 is equal to 2 slices of pie/cake/pizza/whatever you want it to be because if you take a cake, cut it into 4 pieces, then cut the 4 pieces in half. You will get 8 pieces.
Piensa y escribe un caso estadístico en el que pueda identificar POBLACIÓN, MUESTRA, VARIABLE Y RECORRIDO DE LA VARIABLE
ANSWER:
Caso estadístico: Altura de las mujeres de la poblacion indigena Sikuani.
Step-by-step explanation:
Población: Mujeres de la comunidad sikuani
Muestra: se toma una muestra de 20 datos para calcular la altura ,este dato se toma de la población total de 165 mujeres.
M: ( 1.30, 1.20, 1.50, 1.52, 1.60, 1.37, 1.28, 1.55,1.46, 1.26, 1.57, 1.58, 1.54, 1.38, 1.56, 1.23, 1.59, 1.62, 1.48, 1.40)
Variable: Altura
Recorrido de la variable: El recorrido de la variable es la diferencia entre el valor máximo de la muestra y el valor mínimo.
Altura máxima: 1.62 m.
Altura mínima : 1.20
Como ya tenemos el valor máximo y el valor mínimo ,podemos hallar el recorrido de la variable.
R=( 1.62m -1.20m)
R= 0.42
An aluminum can has a capacity of 2.37 L. What is the capacity of the can in milliliters?
(1 L = 1,000 mL)
Answer:
2,370 mL
Step-by-step explanation:
1000mL = 1 L, so I multiplied 1000 by 2.37
If they ask for it to be set up as a proportion, I would write 1/1000 = 2.37/x and cross multiply. x = 2,370
What is the net area of the figure (please help!!!!)
Answer:
352 inches
Step-by-step explanation:
I did the math
YOU WILL GET MARKED BRAINLIEST:)
Answer:
Z = 2
Step-by-step explanation:
This tape diagram is split into two equal parts.
Since 2 and 2 are equal, and since 2 and 2 have a sum of 4, then z is equal to 2.
Answer:
z = 2
Step-by-step explanation:
if two z go into 4 then it's 2 because 2 is the only number that goes into 4 twice
A 4 pound force acting in the direction of (4,-2) moves an object just over 7 ft from point (0,4) to point (5,-1). Find the work done to move the object to the nearest foot-pound
Answer:
[tex]W=59.7408J[/tex]
Step-by-step explanation:
From the question we are told that:
Force [tex]f=4N[/tex]
Force Direction [tex]\arrow (4,-2)[/tex]
Distance traveled [tex]d_t=7ft \aprrox\ 2.1336m[/tex]
Distance traveled Direction point (0,4) to point (5,-1)
Generally the equation for work done is mathematically given by
[tex]W=force*distance[/tex]
[tex]W=f*d_t\\W=4*7*2.1336[/tex]
[tex]W=59.7408J[/tex]
plsss help asap edge
Answer:
10 units
10000 units
10100101 units and 20 units
What are the coordinates of the point (-8,5) if it is reflected across the x-axis?
a. (8,5)
b. (8, -5)
c. (-8,5)
D. (-8,-5)
I’ll mark branliest
Answer:
D:(-8,-5)
Step-by-step explanation:
It is already negative and if plotted the coordinates then reflected, it will give this answer
