Answer:
C. Infinite Solutions
Step-by-step explanation:
In order to solve this we fist have to simplify the equation so we do the following:
[tex]\frac{1}{7}(63n -77) = -11 + 9n\\\\(\frac{1}{7})(7)(63n - 77) = (7)(-11 + 9n) \\\\63n - 77 = -77 + 63n\\63n - 77 = 63n - 77[/tex]
From here we know that any value of n is the solution of this equation so the answer is option C.
We get the same result if we multiply a number by 4 or if we multiply the number by 7 and then add 9. Find the number.
Answer:
I think it’s when you multiply by 7 then add 9 but it’s just what I think.
Step-by-step explanation:
Which is an equation of a direct proportion?
Answer:
y=6x-6
Step-by-step explanation:
i think not sure tho
Answer:
y = 6x
Step-by-step explanation:
i just got it right on TTM
Solve the system using elimination,
2x - 3y = - 19
7x + 7y = 21
Answer:
x = -2
y = 5
Step-by-step explanation:
2x - 3y = -19 ---------------------------(I)
7x+ 7y = 21 -----------------------------(II)
Multiply equation (I) by 7 and equation (II) by 3.Then add and so y will be eliminated and you will get the value of x
(I)*7 14x - 21y = - 133
(II)* 3 21x + 21y = 63 {Now add}
35x = -70
x = -70/35
x = - 2
Plug in x = - 2 in equation (I)
2*(-2) - 3y = -19
-4 - 3y = -19
-3y = -19 + 4
-3y = -15
y = -15/-3
y = 5
HELPPP!!!!!
A system of equations is given below:
x + 2y = 7
-3x + 4y = 9
Nicole says she would multiply the first equation by 3 and add the two equations together to eliminate the x's. Michael says he would multiply the first equation by 2 and add the two equations to eliminate the y's.
Who is correct? and explain why.
Answer:
Nicole is correct
Step-by-step explanation:
by multiplying the first equation by 3 it becomes:
3x + 6y =21
this can cancel the -3x in the second equation when adding them together
Answer:
Nicole is correct, since when she multiplied by 3, she cleared the x's, since one x was already negative, and the other one was positive. Michael is incorrect since when he multiplied by 2, he didn't realize that both y's were positive, so they didn't clear.
Step-by-step explanation:
Let's see what will happen if we do what Nicole says:
x+2y=7
-3x+4y=9
multiply the first equation by 3 on both sides
3(x+2y)=7(3)
3x+6y=21
-3x+4y=9
now let's add them.
10y=30
We can see that the x's are cleared, since one x is positive and the other is negative.
Now let's try what Michael says.
x+2y=7
-3x+4y=9
multiply first equation by 2
2(x+2y)=7
2x+4y=7
-3x+4y=9
now let's add
-x+8y=16
the y's aren't eliminated, since both of them are positive.
Nicole is correct, since one x is positive and another was negative, and when opposite numbers are added together, they cancel out and equal zero.
Hope this helps!
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match each situation to its corresponding expression.
Answer:
I mean how can I answer this???????????????????????
7th grade math help me please :))
Answer:
40
Step-by-step explanation:
s = 2;
h = 4
Surface area = 2s² + 4sh
= 2*2² + 4 * 2 * 4
= 2 *4 + 32
= 8 + 32
= 40 sq. units
Pls help
Show workings
Answer:
2:3
3:2
Step-by-step explanation:
Write the following decimals in order from smallest to largest:
0.021, 0.12, 0.2, 0.02
Help me with this pls
Answer:
x=145
Step-by-step explanation:
There are two ways to solve:
-Vertical angles Theorem states that opposite angles are congruent, so x=145 degrees.
-Sameside angles are supplementary so:
35+x=180
Subtract 35 from both sides:
x=145
please help me!!!!!!!!!!!!!!!! (problem above)
Finding Missing Angle Measures in a Quadrilateral A trapezoid has angles 54 degrees, 54 degrees, x, and x. Look at the trapezoid shown. What is the measure of angle x? The measure of each angle x is 54° 90° 126° 252°
Answer:
the answer is C 126°
Step-by-step explanation: well first i picked B 90° and it was wrong then i picked C and i got it right
CAN SOMEONE ACTUALLY HELP ME NOW PLEASE HURRY!
Answer:
the answer has to be C
if you were to.find the slope of K
y1-y1 / x1-x2
which will get you slope of 3
..now we do see that the slope of J is 2 and we foind slope of K to be 3 the diffrence is 1
6 boy students make up 24% of the total class how many total students are in class
Answer:
There are 25 students in the class.
Step-by-step explanation:
1. Set up an equation. The equation would be 6 = 24/100x.
2. Solve the equation. You can solve this by multiplying both sides by 100/24, and 100/24 * 6 = 25. You would then get that x = 25, which means that the number is 25.
Answer:
25 students
Step-by-step explanation:
25 x 0.24 = 6
1/5 ÷ 2. simple for a couple of points lol
0.1
Have a amazing day!!
Answer:
1/10 and in decimal form, it would be 0.1
7560 in the ratio 4:5
Step-by-step explanation:
Divide 7560 by 9 you get 840. Then you times 840 by 4 you get 3360, Multiply 840 by 5 you get 4200.
Which ordered pairs make the equation true?
2x+5y=−1
Select each correct answer.
(−3, 1)
(5, −3)
(2, −1)
(−4, 2)
Answer:
(-3, 1) and (2, -1)
Step-by-step explanation:
We'll just substitute in these coordinates.
First Pair:
2(-3) + 5(1) = -1
-6 + 5 = -1
-1 = -1
This works!
Second Pair:
2(5) + 5(-3) = -1
10 - 15 = -1
-5 ≠ -1
This does not work.
Third Pair:
2(2) + 5(-1) = -1
4 - 5 = -1
-1 = -1
This also works!
Fourth Pair:
2(-4) + 5(2) = -1
-8 + 10 = -1
2 ≠ -1
This does not work.
Can someone help me I’ll mark brainliest thank you
Answer:
[tex]x = 2 \: cups[/tex]
Step-by-step explanation:
Step 1: Lay out the proportion.
[tex] \frac{ \frac{1}{3} \: cups}{16 \: brownies}= \frac{x}{96 \: brownies} [/tex]
Step 2: Multiply 1/3 cups by 96 brownies.
[tex] \frac{1}{3} \: cups \: \times \: 96 \: brownies \: = 32[/tex]
Step 3: Divide by 16 brownies.
[tex]x = 32 \div 16 \: brownies = 2 \: cups[/tex]
Find the common factors of the following
25x2y. 30xy2
Plz the 2 is square2
Answer:
5xy is the answer
Step-by-step explanation:
plz check it
Find the volume of the conical paper cup.
Answer:
i think it is A sorry if I am worng
Answer:
21 is the correct answer
Step-by-step explanation:
Will give brainliest!!! The MTC Theater holds 250 people, and last night’s performance sold out! Students under the age of 16 paid $2.50 per ticket, while everyone else paid $4.00 per ticket. Last night’s show brought in $910.
Write a system to represent the given equations.
How many adult tickets were sold?
How many under the age of 16 tickets sold
*
What type of number can -14 be classified as?
O Whole Number
O Irrational Number
O Integer
What type of number can 1.758 be classified as?
O Irrational Number
O Integer
O Whole Number
O Rational Number
Answer:
[tex] - 14 = integer \\ 1.758 = rational[/tex]
plzz mark it as brainliest..
Two numbers have a sum of 9 when added together.
The same two numbers have a product of 20 when multiplied together.
Complete the table and write a system of equations to represent the two numbers.
Answer:
5 + 4 = 9 5 × 4 = 20
the numbers are 5 and 4
the answer is 5 and 4
hope this helps!!
so sorry if its wrong!!
Love: Deku~ <3
Help help help help
22
Answer:
(-10)² = -10 x -10 = 100
- 10² = - (10 x 10) = - 100
Step-by-step explanation:
(-10)² = -10 x -10 = 100
- 10² = - (10 x 10) = - 100
A rectangle has a length of (2x-7) and a width of (x+5) perimeter
Answer:
6x - 4
Step-by-step explanation:
Perimeter is equal to double the length plus double the width, and if you use this to find perimeter, you would get that the perimeter = 2(2x-7)+2(x+5), which simplifies to 4x - 14 + 2x + 10, which simplifies to 6x - 4. That means that the rectangle's perimeter is 6x-4.
Is (10,2) a solution to the equation 3y+14=2x?
Answer:
yes
Step-by-step explanation:
Use substitution method
3(2)+14=2(10)
6+14=20
20=20
Hope this helps. Have a nice day you amazing bean child.
If a movie trailer offends 45 people in a theater, and then the feature movie disturbs 25 more people every scene the villain appears in, which of the following equations expresses the number of people offended or disturbed after "x" villain scenes in the movie? * A. y = 45 B. y = 25 C. y = 70x D.y = 25x + 45
Answer:
D. y = 25x + 45
Step-by-step explanation:
If it has already offended 45 people, that is our b. Now, we substitute 25 for m because it disturbs 25 more people per villain scene.
A clothing designer has a square piece of fabric with a length of 16 inches. The designer cuts a circle with the largest area possible from the square
To the nearest tenth, what is the circumference of the circular piece of fabric? (Use 3.14 for T)
Answer:
50.2
Step-by-step explanation:
Answer:
50.24 should be correct, (2 * pi) * r. With pi = 3.14 and radius = 8, we get 50.24.
Tenley is making a square frame for her painting. She is using 4 pieces of wood that are each 3.55 feet long. How much wood will Tenley use to make the frame?
Answer:
14 feet of wood
Step-by-step explanation:
Find the explicit formula for
arithmetic
sequences.
38, 238, 438, 638, ..
Answer:
200n - 162.
Step-by-step explanation:
first trem a1 = 38
common difference d = 200
nth term = a1 + (n-1(d
= 38 + 200(n-1)
= 200n - 162
The explicit formula for arithmetic sequences is 200n - 162.
What is an arithmetic sequence?The sequence in which every next number is the addition of the constant quantity in the series is termed the arithmetic progression.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
The given sequence is 38, 238, 438, 638,
first trem a₁ = 38
Common difference d = 200
nth term = a₁ + (n-1(d
nth term = 38 + 200(n-1)
nth term = 200n - 162
To know more about arithmetic progression follow
https://brainly.com/question/6561461
#SPJ2
What is the slope from the following equation?
52x - 620 = y
Answer:
m=52
Step-by-step explanation: