Answers
And the second one is x=-11
Answer: 3. x = 20/3 4. x = -11
Step-by-step explanation:
3. 3x - 5= 15 Add 5 to both sides
+5 +5
3x = 20 Now divide both sides by 3
x = 20/3
4. -2x + 7 =29 Subtract 7 from both sides
-7 -7
-2x = 22 Divide both sides by -2
x = -11
Related Questions
DUE IN 10 MINUTES. PLEASE HELP. WOULD BE VERY THANKFUL
Solve the following problems. Remember that all reasoning must be explained, and all steps of math work must be shown!
Answers
Answer:
1. y = 36°
a = 9.7
2. No.. wire H to P/Q is not a tangent
Step-by-step explanation:
see below
for geometry:(
please help, will give brainist
Answers
Answer:
The coordinates are (5.5,2)
Step-by-step explanation:
We simply use the internal division formula here
The formula is as follows;
(x,y) = (nx1 + mx2)/(m+n) , (ny1 + my2)/(m+ n)
From the question;
m = 5
n = 3
(x1,y1) = (3,-3)
(x2,y2) = (7,5)
we simply proceed to insert these into the formula above;
That will be;
(x,y) = (3)(3) + 5(7)/(5+3) , (3(-3) + 5(5)/(5+ 3)
(x,y) =( 44/8, 16/8)
(x,y) = (5.5, 2)
Solve the following system of equations algebraically:
4x - 5y = 18
3x – 2y = 10
Answers
Answer:
D
Step-by-step explanation:
Given the 2 equations
4x - 5y = 18 → (1)
3x - 2y = 10 → (2)
Multiplying (1) by 3 and (2) by - 4, then adding will eliminate the x- term
12x - 15y = 54 → (3)
- 12x + 8y = - 40 → (4)
Add (3) and (4) term by term to eliminate x, that is
- 7y = 14 ( divide both sides by - 7 )
y = - 2
Substitute y = - 2 into either of the 2 equations and solve for x
Substituting into (1)
4x - 5(- 2) = 18
4x + 10 = 18 ( subtract 10 from both sides )
4x = 8 ( divide both sides by 4 )
x = 2
solution is (2, - 2 ) → D
What would be the most appropriate first step if you wanted to solve this system of equations using elimination? 3x+2y=7 x+4y=−8 A. Multiply the first equation by −1 B. Multiply the second equation by −2 C. Multiply the first equation by −2 D. Multiply the second equation by -1−1
Answers
Answer:
A. Multiply the first equation by −1
Step-by-step explanation:
From the above question, our system of equations is
3x+2y=7... Equation 1
x+4y=−8..... Equation 2
Hence, solving by Elimination, the first step would be if we are eliminating x first, we are to Multiply Equation 1 by -1
Option A is the correct option
Corey bought 2 1/2
liters of paint for 60dollars
What was the cost per liter of paint?
Answers
Answer:
24 dollars per liter
Step-by-step explanation:
Take the number of dollars and divide by the number of liters
60 dollars / 2.5 liters
24 dollars per liter
Answer:$24 per litter
Step-by-step explanation:
Convert the improper fraction to a mixed number.
17
3
Answers
Answer:
is it 17 over 3 is that what u need to be improper
Answer:
5 2/3
Step-by-step explanation: just divide 17/3
if angle P measures 60 degrees , what is the measure of angle c?
Answers
Answer:
120 degrees
Step-by-step explanation:
Hope this helped, Have a Great Day!!
A game increased in price by 1/2 . After the increase it was priced at £27. What was the original price of the game? (Hegarty Maths)(SSSOOOO hard)(anyone know?)
Answers
Answer:
£18
Step-by-step explanation:
Let
x = original price of the game
Increase in price = 1/2
New price = £27
x + 1/2x = £27
2x+x/2 = 27
3/2x = 27
x = 27 ÷ 3/2
= 27 × 2/3
= 54 / 3
x = £18
Therefore, the original price of the game is £18
Answer:
£18
Step-by-step explanation:
Step-by-step explanation:
Let
x = original price of the game
Increase in price = 1/2
New price = £27
x + 1/2x = £27
2x+x/2 = 27
3/2x = 27
x = 27 ÷ 3/2
= 27 × 2/3
= 54 / 3
x = £18
Therefore, the original price of the game is £18
ASAP pls help me with this question
Answers
Answer:
120
Step-by-step explanation:
1. Find the value of x.
The angles in a triangle have a sum of 180 degrees. To find x, add up the other two inside angles and subtract the sum from 180.
87 + 33 = 120
180 - 120 = 60 degrees.
x = 60
2. Angle y is supplementary to angle x, meaning that the sum of the two angles equals 180.
180 - 60 = 120
y = 120
The work of a student to solve the equation 2(3x − 4) = 8 + 2x + 4 is shown below:
Step 1: 2(3x − 4) = 8 + 2x + 4
Step 2: 5x − 6 = 12 + 2x
Step 3: 5x − 2x = 12 + 6
Step 4: 3x = 18
Step 5: x = 6
In which step did the student first make an error and what is the correct step?
Step 2; 6x − 6 = 2(6 + x + 2)
Step 2; 6x − 8 = 12 + 2x
Step 3; 5x − 2x = 12 − 6
Step 3; 5x + 2x = 12 + 6
Answers
Answer:
step 2; 6x-8=12+2x; she added instead of multiplying
Last year 858 people attended the Middleton County Fair. This year 1,635 people attended. What was the percent increase from last year to this year? (Round to the nearest percent) *
Answers
Answer:
28
Step-by-step explanation:
Answer: 389
Step-by-step explanation: because I’m heading
Find the correct values for the variables that make
х
cos(H)
the statement
y true
Answers
Answer: H: 57
X: GH
Y: 80
43.57 cm
Step-by-step explanation:
Deans pencil box
5 pencils
2 erasers
3 pens
12 markers
24 crayons
What’s 2 equivalent ratios representing the erases to markers .
Jamie has 1 eraser to 12 crayons Do Jamie and dean have the same ratio of erasers to crayons ?
Answers
Please help with this
Answers
Answer:
142.75
Step-by-step explanation:
NEED ANSWERED NOW
ALGEBRA 2
POLYNOMIL FUNCTION
WHICH STATEMENT ABOUT THE FUNCTION IS F(x) = x ^3 is true
A. the functiom is positive where x<0
B. The function never increases
C. the function is off
Answers
Answer:
B
Step-by-step explanation:
I was solving steps and I kept seeing 0 so I dont if I'm completely sure but I hope im right
The function is negative when x < 0 as shown by the graph.
The function does increase. Look at the graph.
Therefore the answer is C.
Pleasee help 25 POINTS AND BRAINLY PLEASE!! theres 4 graphs look at all pics below
Answers
Answer:
i think its the first graph
Step-by-step explanation:
sry if this isn't right i wish i
could help
ANSWER:
LAST GRAPH
EXPLANATION:
First, we need to know the equation. The equation is:
y=-2/5x-4.
"-4" is the "b" or the y-intercept. So, the line that is going through the y-intercept, or (0, -4) is the last two graphs. The "-2/5x" is the slope. Since it's a negative, it should be going from the top left to bottom right. Both graphs are. Now, we will look at the 2/5. When it states, "2/5" it means "y/x" NOT "x/y"
Since it's a negative, we will go down by 2 studs and go right by 5. (If it was positive, we will go up by 2 studs, but since this is a negative..)
Once you do that, you should see that the slope matches the last graph.
---
You can also tell by substituting points. For example, one is (5,-6) for the answer. You can substitue y as -6 and x as 5.
-6 = -2/5(5)-4
-6 = -6 / TRUE
I need the reasoning?
Answers
Answer:
2. This is only true when x=-3.
3. This is only true when x=3.
4. This is only true when x=12.
5. This has no solution.
6. This has an infinite number of solutions.
Answer:
Step-by-step explanation:
try
Maggie bought 4 tacos for $3 each and a burrito for $7. She paid with two $10 bills. Which equation could be used to find how much change Maggie received? Let C stand for the total cost and G stand for the change.
Answers
Answer:
20-(4(3)+7)=20 or 20-C=G
Step-by-step
The money allowed is $20 so the cost of everything subtracted from 20 is equal to the amount of change received a.k.a G
Angela bought gifts for her friends, and each gift cost $10. Let y represent the total cost and x represent the number of gifts. Write an equation to represent the proportional relationship between the total cost and the number of gifts she bought. (4 points)
a
y = 9x
b
y = 10x
c
y = one-tenth x
d
y = one-ninth x
Answers
Answer:
B
Step-by-step explanation:
Y=money x number of gift
Y=10x
Answer:
Y=10x
Step-by-step explanation:
I took the quiz! :)
how do u solve this ???
Answers
Answer:
28°
Step-by-step explanation:
Subtract 152° from 180° becuase a straight line angle is 180°
This leaves you with 180-152 = 28
Answer:
28°
Step-by-step explanation:
A straight angle created by JNM and MNP add up to 180. We know that one of them is 152 so 180-152 to find the remaining angle
The short sides of a rectangle are 2 inches. The long sides of the same rectangle are three less than a certain number
of inches.
Suppose that you are given the value of the unknown number. Verbally describe two methods for finding the area of
this rectangle. Use complete sentences in your answer.
Answers
Method 1: The width was given as 2 inches and the length is x-3. If given the value of x you subtract 3 from x and multiply the product of the subtraction by the width (2 inches)
2(x-3) = area of rectangle
I’m drawing a blank for a second method so hopefully someone else can help with that.
10. Write quadratic function with zeros -4, -7
Answers
What is the x-coordinate of the point that divides the directed line segment from J to K into a ratio of 2:5? X = (StartFraction m Over m + n EndFraction) (x 2 minus x 1) + x 1 –4 –2 2 4
Answers
Answer:
-2
Step-by-step explanation:
The equation of a segment C(x, y) that divides the line segment AB with endpoints A([tex]x_1,y_1[/tex]) and B([tex]x_2,y_2[/tex]) in the ratio m:n is:
[tex]x=\frac{m}{n+m} (x_2-x_1)+x_1\\\\y=\frac{m }{n+m} (y_2-y_1)+y_1[/tex]
A point (x, y) divides the directed line segment from J(-6, -2) to K(8, -9) into a ratio of 2:5. Hence:
[tex]x=\frac{2}{2+5}(8-(-6))+(-6)\\\\x=4-6\\\\x=-2\\\\[/tex]
Also:
[tex]y=\frac{2}{2+5}(-9-(-2))+(-2)\\\\y=-2-2\\\\y=-4[/tex]
The point is (-2, -4)
Answer:
B) -2
Step-by-step explanation:
14.9+1/3(-12 -27x) - 33.2
x=-3
Answers
Answer:
4.7
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
14.9 + 1/3(-12 - 27x) - 33.2
x = -3
Step 2: Evaluate
Substitute in x: 14.9 + 1/3(-12 - 27(-3)) - 33.2Multiply: 14.9 + 1/3(-12 + 81) - 33.2Add: 14.9 + 1/3(69) - 33.2Multiply: 14.9 + 23 - 33.2Add: 37.9 - 33.2Subtract: 4.7Which statement is true about the length of a square with an area of 200 square inches?
A.
The length is less than 14 inches.
B.
The length is between 19 inches and 20 inches.
C.
The length is exactly 100 inches.
D.
The length is between 14.1 inches and 14.2 inches.
Answers
Answer:
D
Step-by-step explanation:
the square root is between 14.1 and 14.2.
Answer:
Between 14.1 and 14.2
Step-by-step explanation:
D
Find the missing dimension of each prism.
look at the picture above and help me out a little bit.
Answers
Given:
Volume of the prism = 60 in³
Breadth = 2.5 in
Height = 4 in.
To find:
The length of the prism.
Solution:
We know that, volume of a prism is
[tex]V=l\times b\times h[/tex]
where, l is length, b is breadth and h is height.
Putting V=60, b=2.5 and h=4, we get
[tex]60=l\times 2.5\times 4[/tex]
[tex]60=l\times 10[/tex]
Divide both sides by 10.
[tex]\dfrac{60}{10}=l[/tex]
[tex]6=l[/tex]
Therefore, the missing dimension of the prism is 6 in.
What is the value of x that satisfies the equation?
27^(3x)=81^(x+10)
Answers
Answer:
x=7.999996
Step-by-step explanation:
273x=81x+10
log(273x)=log(81x+10)(Take log of both sides)
3x*(log(27))=(x+10)*(log(81))
3x=(
log(81)
log(27)
)*(x+10)
3x=1.333333*(x+10)
3x=1.333333x+13.33333(Simplify both sides of the equation)
3x−1.333333x=1.333333x+13.33333−1.333333x(Subtract 1.333333x from both sides)
1.666667x=13.33333
1.666667x
1.666667
=
13.33333
1.666667
(Divide both sides by 1.666667)
PLEASE HELP ME WITH THIS PROBLEM! PLEASE
Answers
Answer:
when I find out the two others ill edit this,sorry i'm kinda slow lol
Step-by-step explanation:
Team Wins Losses
Tigers 20
Vikings 25 10
Cougars 30 12
Pirates 35
what is the answer to the question?
Answers
Answer:
C
Step-by-step explanation:
y is 2 less than the product of 3 and x
Answers
Answer:
y=2<3x
Step-by-step explanation:
