-2x-3=-7
add 3 to both sides
-2x=-4
isolate x by diving both sides by -2
Answer: x=2
Hope that helps!
Please mark brainliest
Answer:
x = 2
Step-by-step explanation:
The whole goal when solving problems like this is to get the x alone. So the first step would be to get the -3 over to the other side. To do this, you would add 3 to each side of the equation, so that the -3 on the left side cancels out.
-2x - 3 = -7
+3 +3
-2x = -4
The next thing you need to do is divide each side by -2. You would do this because right now, the equation reads "negative two times x equals negative four". When you divide a multiplication problem, it cancels out, so you are left with just the x.
-2x = -4
÷ -2 ÷ -2
x = 2
You now have the value of x.
Please let me know if you need any more help. I hope this explanation helps you understand a bit better. Have a great day! :)
Please Answer ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
Answer:
3/2 because you divide both by 2
Step-by-step explanation:
hope this helps. :)
Find the measure of.. (Image included)
I'll take all the help I can get please :)
Answer:
[tex]\sf\Huge\boxed{C.40}[/tex]
Step-by-step explanation:
Hello There!
Remember: sum of interior angles of a triangle = 180
so to find x we use this equation
180 = 90 + 7x + 5 + 9x + 5 ( the little square in the triangle indicates that the angle is a right angle. right angles have a measure of 90 so that's where the 90 came from.)
now we solve for x
step 1 combine like terms
90 + 5 + 5 = 100
7x + 9x = 16x
now we have 180 = 16x + 100
step 2 subtract 100 from each side
180 - 100 = 80
100 - 100 cancels out
now we have 80 = 16x
step 3 divide each side by 16
80/16 = 5
16x/16=x
we're left with x = 5
Finally we plug in 5 into x for angle a
7(5)+5
7*5=35
35+5=40
so we can conclude that the measure of angle A is 40 degrees
In a classroom, there are 3 more girls than boys and the ratio of girls to boys is 6 to 5.
What equation represents "there are 3 more girls than boys?"
A. G = B + 3
B. B = G + 3
C. 6B = 5G
D. 6G = 5B
Answer:
the answer is d
Step-by-step explanation:
I came to this answer with simple deduction and process of elimination.
Given f (x) = 1.5x-7, what value of x makes f (x) = 5?
Answer:
f(5) = 0.5
Step-by-step explanation:
f (5) = 1.5(5) - 7
f (5) = 7.5 - 7
f(5) = 0.5
Hope this helps!
select all of the trips that would take 2 hours
Answer:
a field trip
a road trip
a trip to a far antique museum
Uhm I would also appreciate if i had options.
Identify the following for the following graph:
X-Intercept(s):
2. Y-Intercept:
3. Vertex:
4. Maximum or Minimum
5. Axis of Symmetry
6. Roots/Solutions/Zeros:
7. Domain:
8. Range:
Answer:
X- Intercepts: (-1,0) and (-3,0)
Y- Intercepts: (0,-6)
Vertex: (-2,2)
Maximum
Axis of Symmetry x=-2
I don't know what the roots/solutions/zeroes are
7. Domain: All real #
8. Range: y is less than or equal to 2
Step-by-step explanation:
Tell me if you need explanation
Jordan wants to play a basketball game at a carnival. The game costs the player $ 5 $5dollar sign, 5 to play, and the player gets to take two long-distance shots. If they miss both shots, they get nothing. If they make one shot, they get their $ 5 $5dollar sign, 5 back. If they make both shots, they get $ 10 $10dollar sign, 10 back. Jordan has a 40 % 40%40, percent chance of making this type of shot. Here is the probability distribution of X = X=X, equals the number of shots Jordan makes in a randomly selected game, and M = M=M, equals the amount of money Jordan gains from playing the game. X = # of shots made X=# of shots madeX, equals, \#, start text, space, o, f, space, s, h, o, t, s, space, m, a, d, e, end text 0 00 1 11 2 22 M = money gained M=money gainedM, equals, start text, m, o, n, e, y, space, g, a, i, n, e, d, end text − $ 5 −$5minus, dollar sign, 5 $ 0 $0dollar sign, 0 $ 5 $5dollar sign, 5 Probability 0.36 0.360, point, 36 0.48 0.480, point, 48 0.16 0.160, point, 16 Calculate the mean of X XX. μ X = μ X =mu, start subscript, X, end subscript, equals shots made
The mean is the average of the numbers divided by the total number of variables, and the further calculation can be defined as follows:
Calculating the Mean of X:
[tex]= \sum X \times p(X)[/tex]
[tex]= 0\times 0.36 + 1 \times 0.48 + 2 \times 0.16\\\\= 0 + 0.48 + 0.32\\\\=0.80\\\\[/tex]
Therefore, the final answer is "0.8".
Learn more:
brainly.com/question/9087018
Answer:
-1 dollars
Step-by-step explanation:
find the nth term - 8,14,20,26
A rectangular photograph is 8 cm wide and 12 cm long. The photograph is enlarged by increasing the length and width byan equal amount in order to double its area. What are the dimensions of the new photograph?
a. 12 cm by 16 cm
b. 16 cm by 24 cm
C. 20 cm by 30 cm
d. 48 cm by 72 cm
Answer:
16 cm by 24 cm
Step-by-step explanation:
Well if you want an equal amount you will have to multiply both numbers by the same thing. I used 2 and 16 cm by 24 cm would be your answer.
The dimensions of the new photograph is b. 16 cm by 24 cm.
What is the area of the rectangle?The area of the rectangle is the product of the length and width of a given rectangle.
The area of the rectangle = length × Width
A rectangular photograph is 8 cm wide and 12 cm long.
The original area is
8 x 12 = 96
The photograph is enlarged by increasing the length and width by an equal amount in order to double its area.
The new area is 96 x 2 = 192
So the dimensions are b. 16 cm by 24 cm.
Learn more about the area;
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Find the measures of the interior angles of the triangle
Answer:
m∡A = 59°
m∡B = 48°
m∡C = 73°
Step-by-step explanation:
'x' = measure ∡A
73 + x - 11 + x = 180
2x + 62 = 180
2x = 118
x = 59
Kim was asked to explain to her friends how to solve 3x? - 2x = 1. She will be using the quadratic formula. What would be the first step?
Please Show your work.
Answer:
Equation: y = 2.5x
Answer: 43.75 drawers
Step-by-step explanation:
Equation: 10 - 7.5 = 2.5 and when you subtract 2.5 until the Number of Drawers (x) is 0, then you get 0 for Total Volume (y), so y =2.5x+0 or y = 2.5x
Answer: Substitute 17.5 into x.
y = 2.5(17.5)
y = 43.75 drawers
An art supply store typically sells 7 bottles of green paint for every 6 bottles of blue paint. How many bottles of blue paint does it sell when it sells 35 bottles of green paint?
Cam, Yusef, and Spencer have resolved to drink more water each day. The recommended amount of water per day is 64 ounces.
a. Cam has 10% of the recommended amount of water left to drink before bed. How many ounces of water does she need to drink to reach her goal? Show your work and/or explain your reasoning.
9514 1404 393
Answer:
6.4 ounces
Step-by-step explanation:
10% of 64 ounces is ...
0.10 × 64 = 6.4 . . . . ounces
Cam needs to drink 6.4 ounces to reach the recommended amount.
This is a portion of the graph of a polynomial function. Apparently the function has a double zero -
a. between -2 and 1
b. between 3 and 4
c. between -2 and -1
d. between 1 and 2
PLZZZ HELP. Celeste makes 6% Commission on her sales, if her sales for a week total %4580 what is her commission
1. $274
2. $274.50
3. $275.80
4. $272.00
Answer: 3
Step-by-step explanation:
FIFTY POINTS AND ILL GIVE BRAINLIEST TO THE RIGHT ANSWER!
Find the sum, difference, product, and quotient of 6 x 10^-4 and 1.5 x 10^
-4. Write your answers in scientific notation.
The sum is__
The difference is__
The product is__
The quotient is__
Answer:
The sum is
6 × 10⁻⁴ + 1.5 × 10⁻⁴ = 7.5 × 10⁻⁴The difference is
6 × 10⁻⁴ - 1.5 × 10⁻⁴ = 4.5 × 10⁻⁴The product is
6 × 10⁻⁴ × 1.5 × 10⁻⁴ = 9 × 10⁻⁸The quotient is
6 × 10⁻⁴ ÷ 1.5 × 10⁻⁴ = 4Given the side measurements, classify the triangle as acute, right, obtuse, or not a triangle.
8, 14, 12
A) obtuse
B) right
C) acute
D) not a triangle
Answer:
this triangle would either be acute triangle or not a triangle. I'm not sure which one of those two. sorry.
Answer:
Step-by-step explanation:
Since a^2+b^2>c^2 this is an obtuse triangle.
64+144>196
3 times the difference of a number and 4 equals 12. Find the number.
Answer:
Step-by-step explanation:
9
If a=b-2x/x+c,then what is the value of x in terns of a,b & c ?
Answer:
[tex]x=\frac{b-ac}{a+2} ; a\neq -2[/tex]
Step-by-step explanation:
Multiply both sides: by x+c
a(x+c)=[tex]\frac{b-2x}{x+c}[/tex] (x+c)
Simplify: a(x+c)=b-2x
Expand: ax+ac=b-2x
Subtract ac from both sides: ax+ac-ac=b-2x-ac
Simplify: ax=b-2x-ac
Add 2x to both sides: ax+2x=b-2x-ac+2x
Simplify: ax+2x=b-ac
Factor ax+2x: x(a+2)
x(a+2)=b-ac
Divide both sides by a+2: [tex]\frac{x(a+2)}{a+2}[/tex] = [tex]\frac{b}{a+2}[/tex] - [tex]\frac{ac}{a+2}[/tex] ; a≠-2
Simplify: [tex]x=\frac{b-ac}{a+2} ; a\neq -2[/tex]
|(x-19)+11| considr all posibilyties
ill give you brainlyest
Answer: Here Is the answer
Step-by-step explanation: hoep this helps :)
20 POINTS! PLEASE HELP ME! WILL GIVE BRAINLIEST! A large pizza has a circumference of approximately 43.96 inches. What is the diameter of the pizza? Use 3.14 for pi
Answer:
d = 14
43.96/3.14 = 14
hope that helps
Answer:
The diameter of the pizza should be 14.
Suppose that appoximately 261,000,000 people live in the united states. Of these people 37,600,000 speak a language other than english at home who speak another lanague at home over 45 percent speak spanish
Answer:
16,920,000 people speak Spanish at home in the United States, which represents 6.48% of the country's population.
Step-by-step explanation:
Given that approximately 261,000,000 people live in the United States, and of these people 37,600,000 speak a language other than English at home, of which over 45 percent speak Spanish, to determine the number of people who speak Spanish in the United States, the following calculation has to be done:
37,600,000 x 0.45 = X
16,920,000 = X
261,000,000 = 100
16,920,000 = X
16,920,000 x 100 / 261,000,000 = X
6.48 = X
Thus, some 16,920,000 people speak Spanish at home in the United States, which represents 6.48% of the country's population.
hi please help i’ll give brainliest please
Answer:
4
Step-by-step explanation:
15y = 60
60 / 15 = 4
Answer:
Y=4
Step-by-step explanation:
60/15=4
therefore y=4
What is the volume of a sphere if it has a radius of 3 centimeters? (Use 3.14 for TT.)
Answer:
9.52
Step-by-step explanation:
Need help with this!
Answer:
1 = b
2 = a
Step-by-step explanation:
hope that helped
A cone has a volume of 715.92 cubic feet and a radius of 6 feet. What is its height?
Answer:
The answer is 4295.52
Step-by-step explanation:
PLEASE HELP URGENT!!!!!!
Answer:
a, b & c are possible solutions.
Answer:
I'm no mathematician but I'd say yes. If I'm wrong, I'm sorry
Please I will give brainliest
Answer:
The answer is 91 bags.
Step-by-step explanation:
You divide 45.5 by 0.5
Please help me with the question please ASAP ASAP please please help ASAP ASAP please please help please
Answer:
x = 15 ft
Step-by-step explanation:
Triangle ACD is similar to triangle ABE based on the information given, therefore we can set up a proportion to compare the sides:
side AE / side EB = side AD / side DC
4/6 = 10/x
Solve for x
x = (10)(6) / 4
x = 60 / 4
x = 15 ft