Answer:
x = [tex]\frac{1}{4}[/tex]
y = [tex]\frac{3}{4}[/tex]
z = 0
Step-by-step explanation:
You first need to solve for a variable, it won't be as easy as x = 3, you are looking to replace a variable with another equation.
For example, the second equation, 4y-z=3, I can either solve for y or z. It won't be a numerical value but it will get you a step closer.
4y-z=3
4y=z+3
y = [tex]\frac{z}{4} +\frac{3}{4}[/tex]
Then you are able to use substitution to negate one of the variables and solve for the other two variables. I won't type that but I think you get the idea.
Resuelve el siguiente ejercicio:
Este inicio de ciclo escolar, la maestra no nos pidió útiles escolares, pero para
realizar mis tareas necesitaba algunas cosas que había extraviado en estas
vacaciones así que me dirigí a lapapelería. Por el momento solo compré 1 lápiz en
$3.50, dos plumas a $7.90 y una libreta a $12.60. ¿Cuánto dinero voy a pagar?, si
pague con un billete de $100 ¿Cuánto recibiré de cambio?
Answer:
Cuanto dinero voy a pagar 24 $
Cuanto recibiré de cambio 76 $
Step-by-step explanation:
Mis compras son:
1 lápiz 3,50 $
2 plumas 7,90 $
1Libreta 12,60 $
Lo que quiere decir que compre:
3,50 + 7,90 + 12,60 = 24 $
Si cancelo mis compras con un billete de 100 $ me tienen que dar vuelto por:
100 $ - 24 $ = 76 $
How do I solve this I get so confused on fractions if you can solve can I have an explanation
7. What Is the volume
of the rectangular
prism shown below
Greetings! Hope this helps!
Answer
D) 5633.712
__________
13.8 x 12.6 x 32.4
Have a good day!
_______________
A brainliest would help tons! :D
rational number?
square root 97square root 98, square root 99, square root 100
Answer:
square root 97 is 100, square is root 98 is 100, square root 99 is 100, square root 100 is 100
I need help with #13, with an explanation...please help <3
Answer:
Step-by-step explanation:
d= c/ pi
multiply both side by pi
d*pi = c
divide by d
pi= c/d
help pleaseeee . i’m not good
The picture above should help
solve the equation 5(x-3) = 11 -3 (x-2)
Answer:
x = 4
Step-by-step explanation:
5 multiplied by x and 5 multiplied by -3
5x - 15 = 11 -3(x - 2)
-3 multiplied by x and -3 multiplied by -2
5x - 15 = 11 - 3x + 6
Add 15 to both sides
5x = 26 - 3x + 6
Add 3x to both sides
8x = 26 + 6
Add 26 + 6
8x = 32
Divide 32 by 8
x = 4
15. Before oil is added to a certain road surface material, the other ingredients are mixed. The mixture contains
45% 3/4 inch stone and 32% % inch stone. The balance of the mixture is made up of sand. If the mixture weighs
15,000 pounds before the oil is added, how many pounds of each ingredient are in the mixture?
Answer:
sand = 3450 pounds
3/4 inch stones =6750 pounds
1 inch stones =4800 pounds.
Step-by-step explanation:
The mixture composition is :
45% three-quarter inch stones
32% inch stones and
sand for balance
The percent here is by mass of material used.
Weight of mixture is 15,000 pounds before oil addition.
Use the percent by weight for the two types of stones and calculate real values in pounds
Formula to apply is:
Mass percent = (mass of a material/ total mass of mixture) * 100
For 3/4 inch stones it will be:
[tex]0.45= \frac{x}{15000} *100\\\\0.45=\frac{x}{150} \\0.45*150=x\\x=6750[/tex]
The 3/4 inch stones weigh 6750 pounds
The 1 inch stones will be
[tex]32/100 * 15000 =4800[/tex]
The 1 inch stones weigh = 4800 pounds
Total for the two items : 4800+6750 =11550 pounds
The sand used weighs : 15000 - 11550 = 3450 pounds
Seven times a number is greater than 28.
Answer:
Inequality would be
7x>28
The answer to the inequality would be
X>4
Step-by-step explanation:
Divide 7 on Both sides
x>4
check
7(5)>28?
35>28☑️
The length of one leg 20 inches and the hypotenuse is 52 inches
Answer:
48 inches
Step-by-step explanation:
Remember the Pythagorean theorem, where a and b are legs and c is the hypotenuse
a^2 + b^2 = c^2
a= 20
c = 52
now substitute in the given values
20^2 + b^2 = 52^2
400 + b^2 = 2704
solve using inverse operations
400 + b^2 = 2704
-400 -400
b^2 = 2304
b= sqrt(2304)
b=48
‼️WILL LIST BRAINLIEST ‼️Nick ran 4.8 miles on the treadmill in 0.6 hours. What is the average number of miles he ran per hour?
Answer:
4.8 divided by-____ is 8 i think lol
Step-by-step explanation:
Answer:
The average number of miles he ran per house is 8.
Step-by-step explanation:
4.8 divided by 0.6 = 8
If the ratio of two complementary angle is 2:3, find them
HOPE THIS IS THE ANSWER FOR YOUR QUESTION
Answer:
2+3=5 90/5=18
Step-by-step explanation:
Let one angle be 2x,,,and other angle be 3x
2x +3x = 90,,,,,,,def of complement
5x = 90
x=18
angles are 2x = 36, and 3x = 54
check,,,,,36 +54 = 90 ,,,,,,ok
36 /54 = 2/3,,,,,ok
I hope that helped!! ^^
Find the domain and range of each relation. Then determine if the relation is a function.
Answer:
There is no fixed domain, meaning it is ongoing
The range is from -1 ≤ x ≤ 3
It is a function
Step-by-step explanation:
Domain refers to the x values. If there was a domain then there would be a dot or a point signalling that there is a fixed domain, however, there are arrows meaning that it will keep going.
The range refers to the y-values. The lowest y-value is -1 and the highest is 3.
It is a function because, when you do the vertical line test, each x-value has its own y-value.
step by step explanition for all pleasee
I'll do the first three problems to get you started
=====================================================
Problem 40
Plug in x = 0 to find the y intercept
x+y = 5
0+y = 5
y = 5 is the y intercept
Plug in y = 0 to find the x intercept
x+y = 5
x+0 = 5
x = 5 is the x intercept
------------
Answer: The x intercept is 5. The y intercept is 5.=====================================================
Problem 41
Use the same idea here as well
Plug in x = 0 to get
x-y = 5
0-y = 5
-y = 5
y = -5 is the y intercept
Now plug in y = 0 to solve for x
x-y = 5
x-0 = 5
x = 5 is the x intercept
------------
Answer: The x intercept is 5. The y intercept is -5.=====================================================
Problem 42
Plug in x = 0 and solve for y
3x+4y = 12
3(0)+4y = 12
0+4y = 12
4y = 12
y = 12/4
y = 3 is the y intercept
Plug in y = 0 and solve for x
3x+4y = 12
3x+4(0) = 12
3x+0 = 12
3x = 12
x = 12/3
x = 4 is the x intercept
------------
Answer: The x intercept is 4. The y intercept is 3.a+c=r-d covert the equation to solve for a plz answer asap!!!!
Answer:
[tex]a= r- d - c[/tex]
Step-by-step explanation:
Converting the equation to solve for a really just means getting a alone on one side of the equation.
[tex]a + c = r - d[/tex]
To get a alone on the left, we can subtract c from both sides:
[tex]a+ c = r -d\\a = r - d - c[/tex] (Since c - c = 0, c will disappear from the left side.)
Answer: [tex]a= r- d - c[/tex]
Answer:
[tex] \longmapsto \: a + c = r - d \\ (a + c) - c = (r - d) - c \\ \boxed{a = r - d - c}✓[/tex]
a = (r - d - c) is the right answer.PLEASE GIVE AN EXPLANATION WITH YOUR ANSWER! 6 cm are cut from a 24 cm board. What is the percent decrease in length?
Answer:
75%
Step-by-step explanation:
24/6=4
1/4=6
4*6=24
24-6=18
3/4 of 24=18
3/4=75%
The percentage decrease in length of the board is 25%
From the given statement we can deduce the following:
original length of the board = 24 cmnew length after cutting 6 cm = 24 cm - 6 cm = 18 cmThe change in the length of the board is calculated as:
Change in length = original length - new lengthChange in length = 24 cm - 18 cmChange in length = 6 cmThe percentage decrease in the length is calculated as;
[tex]Percentage \ decrease = \frac{change \ in \ length }{original \ length} \times 100\%\\\\Percentage \ decrease = \frac{6}{24} \times 100\%\\\\Percentage \ decrease = 25\%[/tex]
Thus, the percentage decrease in length of the board is 25%
Learn more here: https://brainly.com/question/2140235
WILL MARK BRAINLIEST! Marla bought one necklace and two bracelets for $67.50. Use the following information to determine the amount she paid for each bracelet: • The price of the necklace was $27. • The bracelets were both the same price.
GIVEN:MN is an angle bisector of ∠JMK
Prove:m∠JMN=1/2m∠JMK
Answer:
Step-by-step explanation:
Statements Reasons
1. MN is an angle bisector of ∠JMK 1. Given
2. ∠JMN ≅ ∠NMK 2. Definition of an angle bisector
3. m∠JMN ≅ m∠NMK 3. Definition of congruent angles
4. m∠JMN + m∠NMK = m∠JMK 4. Angle addition postulate
5. m∠JMN + m∠JMN = m∠JMK 5. Substitution property
6. 2(m∠JMN) = m∠JMK 6. Addition property of equality
7. m∠JMN = [tex]\frac{1}{2}(m\angle JMK)[/tex] 7. Division property of equality
factor 10x^3-12x^2+5x-6
Answer:
(5x-6)(2x²+1)
Step-by-step explanation:
10x³-12x²+5x-6
2x²(5x-6)+5x-6
(5x-6)(2x²+1)
Determine the value of the variables when simplifying and evaluating the expression (302)0 .
What is the value of m in the simplified power?
(302)0= 30m
m =
What is the value of (302)0?
(302)0 =
Any value that is raised to the power of zero is 1. The value of the expression given in its simplified form is 1
Exponents and functionsAny value that is raised to the power of zero is 1. Given the expression
(30^2)^0
Simplify
30^2 = 900
Substitute into the original function to have:
(30^2)^0 = 900^0
(30^2)^0 = 1
Hence the value of the expression given in its simplified form is 1
Learn more on exponents here: https://brainly.com/question/11975096
A square box lid has an area of 40 square inches. Which is the best estimate of the length of one side?
Answer:
10 OR 8
Step-by-step explanation:
Area is length times width, so with that being said you could say 10 times 4 is 40 or you can say 8 times 5 is 40
Please help me on this: it’s 10 points pls help me
Answer:
10^4 ---------------- 10,000
10^-4* 10^2 ------- 1/10^2 = 0.01
10^-4 ---------------- 1/10^4 = 0.0001
10^-4/10^2 -------- 1/10^6 = 0.000001
what is 7.63x19pls help
Answer:
144.97
Step-by-step explanation:
Use long multiplication to evaluate.
pls help -
Caleb types 100 words in 5 minutes. What is the unit rate? 100 words to 5 minutes 5 minutes per 100 words 20 words per minute 1 minute to 20 words
Answer:
Unit rate= 20
words per minute/ 0.3
words per second
Step-by-step explanation:
We could work out the unit rate in 2 ways:
Per Minute or Per second.
First we will start of with per minute:
Rate=Word/minute=100/5=20
Answer:
100 words to 5 minutes
Step-by-step explanation:
PLEASE HELP I WILL MARK YOU BRAINLIEST
Answer:
C. $17.00
Step-by-step explanation:
Which situation involving Raul’s bank account would be modeled by a positive number?
Raul deposited his paycheck.
Raul wrote a check to his grandmother.
Raul withdrew cash from an ATM.
Raul paid for groceries with his debit card.
Answer: deposited
Step-by-step explanation:
That means that he put in
Everything is was a withdrawal(taking out)
Answer:
Raul deposited his paycheck.
Step-by-step explanation:
The reason it's 'A' is because when you deposit your paycheck, you are depositing money.
I hope this helps!
What would be the anwser
Abby is adopting kittens from the pet store. if there are 18 kittens, how many ways can she choose 2 kittens?
Answer:
I think its 32
what is the answer to 4 (-5.4)?
Answer:
-21.6
Step-by-step explanation:
When a number, like 4 in your equation, is next to parentheses without a sign (ex. plus or minus) it means to multiply. 4(-5.4) is equal to 4x5.14 which is -21.6
1. (02.05)
Choose the missing step in the given solution to the inequality -x - 10 > 14 + 2x (1 point).
-X-10 > 14 + 2x
-3x -10 > 14
X<-8
-3x > 24
-3x < 4
-3x > -4
8
Answer:
-3x > 24
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
