Answer:
c. (1/2, 8)
Step-by-step explanation:
To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the result for that variable in the other equation.
Choose one of the equations and solve it for x by isolating x on the left hand side of the equal sign.
-2x + y = 7
Step 1: Subtract y from both sides of the equation.
-2x = -y + 7
Step 2: Divide both sides by -2
x = 1/2y - 7/2
Substitute what you see above this statement for y in the other equation.
6(1/2y - 7/2) + y = 11
Step 3: Multiply 6 by 1/2y - 7/2.
3y - 21 + y = 11
Step 4: Combine y and 3y.
4y - 21 = 11
Step 5: Add 21 to both sides
4y = 11 + 21
4y = 32
Step 6: Divide both sides by 4.
y = 32/4
y = 8
Step 7: Substitute 8 for y in x = 1/2y - 7/2 Because the resulting equation contains only one variable, you can solve for x directly.
x = 1/2(8) - 7/2
Step 8: Multiply 1/2 by 8.
x = 4 - 7/2
Step 9: Add -7/2 to 4.
x = 1/2
The system is now solved, and we get C (1/2, 8) as our answer.
Answer:
C
Step-by-step explanation:
I did the test myself
3 3/4- 2 1/5 as a mixed number
The expression written as a mixed number is 1 (11/20).
What is a fraction?A fraction is a part of the whole represented by a/b, where a and b are any integers.
The given expression is 3 (3/4) - 2 (1/5).
Rewrite the expression as a mixed number:
3 (3/4) - 2 (1/5)
= 15/4 - 11/5
= (75 - 44)/20
= 31/20
= 1 (11/20)
Hence, the expression written as a mixed number is 1 (11/20).
Learn more on fractions here:
brainly.com/question/10354322
#SPJ2
What is the answer tho this problem 315+1.4x
Answer:
316.4 in the calculator it came out like this
Step-by-step explanation:
what is seven and nine tenths in standard form
Answer:
0.9 that is how you write nine-tenths in standard form
What type of dilation is formed when the scale factor K is greater than one
Answer:
Enlargement
Step-by-step explanation:
When k > 1, the dilation is an enlargement. When k > 0 and k < 1, the dilation is a reduction. In a dilation, the original figure and its image are similar. The ratio of the side lengths of the image to the corresponding side lengths of the original figure is the scale factor of the dilation.
I went to the mall with $75 and bought a pair of shoes and a few candy bars for $1.25 each. How much did I spend?
Write an expression for the situation.
75 - X - 1.25y
75 - x - 1.25
75 + x + 1.25y
Answer:
75 - x - 1.25y
Step-by-step explanation:
Pls help mee with this
The water will rise 10 in each hour after 4 hours the water will be 40 in deep and it will take 8 hours for the water to reach a depth of 80 in
Step-by-step explanation: POV: your a giga chad!
what are all the possible ratios that can be made out of 32:56
is 6 the same answer as the answer you would get directly finding the square root of 36
Answer:
yes tha
Step-by-step explanation:
Yes the answer is the same. Indeed, the answer to the square root is 6.
Step-by-step explanation:[tex] \sf square \: root \: of \: 36[/tex]
[tex] \sf = \sqrt{36} [/tex]
[tex] \sf = \sqrt{6 \times 6} [/tex]
[tex] \sf = 6[/tex]
Each number in a list of numbers is 3 more than the number before it. The first number in the list is −4. What is the fifth number?
Answer:
- 16
Step-by-step explanation:
-4 - 3 = -7 (1st and 2nd)
3rd) - 7 - 3 = - 10
4th) -10 - 3 = -13
5th) -13 - 3 = -16
Answer:
a. -8
Step-by-step explanation:
Explain how to add integers that have like signs (all + or all -).
Answer:
Step-by-step explanation:
If there is two - signs you make it a positive
Answer:
Step-by-step explanation:
To add integers having the same sign, keep the same sign and add the absolute value of each number. To add integers with different signs, keep the sign of the number with the largest absolute value and subtract the smallest absolute value from the largest. Subtract an integer by adding its opposite.
Sarah and Emily ran a 324m race. If Sarah ran it in 61.3 seconds and Emily ran it in 60.4 seconds, how much faster was Emily than Sarah? Round to the nearest hundredth and give your answer in meters per second.
Please answer quick people keep answering it with links 3
Answer: 1.015 meters per second
I need help pls and thx
Answer: the answer is 21√10
Step-by-step explanation:
Step-by-step explanation:
ini bahasa apa goblaok
When solving a two step equation, how do we know which number is the constant?
We know that we have completely solved a two-step equation if the variable, usually represented. Then, we eliminate the number “closest” to the variable.
I Hope it helps! o.o
A negative to a even power is always
Answer:
a positive number
Step-by-step explanation:
i hopw this help chu:>
2. A baseball game has a total of 9 innings. In each inning, there are 2 teams that each have
to make 3 outs in order for the inning to be complete. Which statement is true?
9
A. Each out is of all the outs in a 9-inning baseball game.
B. Each out is of all the outs in a 9-inning baseball game.
C. Each out is of all the outs in a 9-inning baseball game.
27
D. Each out is
of all the outs in a 9-inning baseball game.
18
Using proportions, it is found that each out is [tex]\frac{1}{54}[/tex] of all the outs in a 9-inning baseball game.
Supposing a 9-inning baseball game, each team has the right to 27 outs.
Two teams, thus, there are [tex]2 \times 27 = 54[/tex] outs.
This means that each out in a game [tex]\frac{1}{54}[/tex] of all the outs in a 9-inning baseball game.
A similar problem is given at https://brainly.com/question/24342347
Which expression is equivalent to 10s+s-3s10s+s−3s?
Answer:
9s-3s10s or 3-10s
Step-by-step explanation:
10s+s-3s10s+s-3s
first of all, we collect like terms
10s+s+s-3s-3s10s
=9s-3s10s
it could also be equal to
9s/3s-(3s10s/3s)
3-10s
when we divide through by 3s
PLzzzzzzz help and give an actual answer plzzzzzzzzzzzzzzzzzzzzz its for an exam and i need it really badd
what was the average wait time in a drive-thru in 2013?
Answer:
In 2003 there was only a short waiting time of 116 seconds!
That's less than TWO minutes.
However, over the years, the drive-thru wait time has gone up 20%
In 2021, due to a study/survey, the drive-thru wait time has been 3+ minutes on average.
Answer:
in 2013 the average time was 180.83
Step-by-step explanation:
Calcula la suma de las longitudes de los catetos, si la hipotenusa mide 15 u y la altura relativa a ella mide 6 u.
UwU
Answer:
9 sqrt(5)
Step-by-step explanation:
La altura relativa a la hipotenusa corta la hipotenusa en dos segmentos.
Defina x como
x = la longitud de uno de esos segmentos
Entonces, la longitud del otro segmento = 15 - x.
Entonces, por el teorema, tenemos que (15-x) (x) = 36, de modo que
15x - x ^ 2 = 36
x ^ 2 - 15x + 36 = 0
(x-3) (x-12) = 0
Entonces, x = 3 o x = 12.
Sin pérdida de generalidad. sea x = 3.
Entonces, la suma de las dos piernas es
raíz cuadrada (6 ^ 2 + 3 ^ 2) + raíz cuadrada (12 ^ 2 + 6 ^ 2) =
raíz cuadrada (36 + 9) + raíz cuadrada (144 + 36) =
raíz cuadrada (45) + raíz cuadrada (180) =
raíz cuadrada (9 * 5) + raíz cuadrada (36 * 5) =
3 raíz cuadrada (5) + 6 raíz cuadrada (5) =
9 cuadrados (5)
pls help asap !!!!!!!!!!!!
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The criteria required to prove the given triangles congruent is :
B. ASA
2. A rectangle has an area of 12 square feet and a length of
5 feet. What is its width?
Area of rectangle = l × w
12 ft² = 5ft × w
w = ¹²/₅ ft or 2.4 ft
∴ the width is ¹²/₅ ft or 2.4 ft-3(x+3)+5<-3
How do you solve this inequality
Answer:
x<1/-3
Step-by-step explanation:
Distribute -3 to (x+3)
-3x-9+5<-3
add like terms (-9+5=-4)
-3x-4<-3
add 4 to both sides
-3x<1
divide both sides by -3
x<1/-3
Please heeeelp
The following set of ordered pairs represents a function. (1,8), (3,6), (5,4), (7,2)
What is the domain of the function?
A- All odd integers from 1 to 7
B-All integers from 1 to 8
C- All rational numbers from 1 to 7
D- All even integers from 2 to 8
Answer:
I believe it would be all positive numbers 1-7. You have to look at the x, or, input values. I hope I got this right.
Step-by-step explanation:
Question 29
How many factors does 100 have?
10
9
6
5
Answer:
It has 9 factors.
Step-by-step explanation:
The factors of 100 are 1, 2, 4, 5, 10, 20, 25, 50, and 100. Therefore, if you count both 1 and 100, it has 9 factors.
PLEAS HELP GRADE 9 MATH ( surface area ) NEED HELP ASAP!! how do I find the surface area of this cylinder?
Answer:
1231.50432 [tex]m^{2}[/tex]
Step-by-step explanation:
A=2πrh+2π[tex]r^{2}[/tex]
h = 21 m
r = 7 m
A = 2π(7)(21) + 2π([tex]7^{2}[/tex])
A = 1231.50432 [tex]m^{2}[/tex]
could someone please help answer this, no spam, thank you, will give brainliest, (homework help)!
Answer:
the answer would be ...... x > 5
Answer:
x>5
Step-by-step explanation:
Find the distance between (-6,-1) and (4,-5)
2,889 mi
Distance from South Atlantic Ocean to Gulf of Guinea
help with a,b,and c please
Answer:
same need answer!!
Step-by-step explanation:
Solve the inequality for x
12x>9(2x-3)-15
Step-by-step explanation:
12x > 9(2x - 3) - 15
12x > 18x - 27 - 15
12x > 18x - 42
42 > 6x
7 > x
so, this is true for all values < 7
so, x is in (-infinity, 7)
both ends but included - therefore the round brackets.
Help please !!!!!!!!