Write an equation equivalent to the verbal statement “The sum of three times a number n and 7 is 16.”
3n + 7 = 16 (equation)
3n = 9
n = 3 (answer
What is the value of x in the equation 3- 2x = -1.5х?
Answer:
x = 6
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define Equation
3 - 2x = -1.5x
Step 2: Solve for x
Add 2x on both sides: 3 = 0.5xDivide 0.5 on both sides: 6 = xRewrite: x = 6Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: 3 - 2(6) = -1.5(6)Multiply: 3 - 12 = -9Subtract: -9 = -9Here we see that -9 does indeed equal -9.
∴ x = 6 is the solution to the equation.
Answer:
x= 6
Step-by-step explanation:
3-2x= -1.5x
-3 -3
-2x= -1.5x - 3
+1.5x +1.5x
-.5x= -3
divide both sides by -.5
x = 6
Find the slope this is my last question hurry ASAP D:
Answer:
-12
Step-by-step explanation:
5-17=-12
-1-(-2)=1
-12/1
-12
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Answer:
x=28
Step-by-step explanation:
180= 38 + (4x+30)
142= (4x+30)
112=4x
x=28
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Answer:
8.246 units long
2sqrt(17) units long in simplest radical form
Step-by-step explanation:
Use the Pythagorean Theorem to find the missing leg length:
a^2+b^2=c^2
4^2+b^2=sqrt(84)^2
16+b^2=84
b^2=68
b=sqrt(68)
b=2sqrt(17) <-- Simplest Radical Form
b=8.246
So the third side is approximately 8.246 units long
can someone help me please
Answer:
74
Step-by-step explanation:
because it is alternate angle
Answer:
1. 106º
2. 146º
Step-by-step explanation:
1. The two angle are supplementary which means that together they will equal 180º
2. The acute angle next to the angle in question is completing the 180º of both the triangle and the line meaning that the 90º of the triangle plus 56º of the other angle must be the same amount of degrees as angle x.
What is the sum of the interior angles of a polygon with 28 sides? Include the formula in your answer and show your work. Be sure to include the units of measure in your final answer.
Help asap will give brainliest
What % of 250 is 50?
Answer:
20 %
Step-by-step explanation:
tell me if I'm wrong , your welcome and merry Christmas !!
Answer: 20%
Step-by-step explanation: 50 times 5 is 250. If you take 5 out of 100 you get 20’s
I need help will mark brainliest
Answer:
[tex]y=\frac{3}{2} x - 2[/tex]
There are 20 triangles and 4 squares. What is the simplest ratio of squares to total shapes?
helpppppppppppppppppp asap
Answer:
97o im pretty sure
Step-by-step explanation:
Answer:
Your answer should be C
Step-by-step explanation:
63+44=107
Help me please on this problem
Answer:
-1/2
Step-by-step explanation:
The slope of the line on the graph is 2, determined by counting up from one point and over to another point.
Perpendicular lines have opposite reciprocal slopes.
Henry runs each lap in 4 minutes. He will run at most 11 laps today. What are the possible numbers of minutes he will run today?
Answer:
Step-by-step explanation:
Time taken in each lap = 4 min
Total laps = 11
Total time = 11 x 4 = 44min
Answer:
44 minutes
Step-by-step explanation:
4 minutes per lap . He is running 11 laps. Multiply 4 times 11 and it equals 44
[HELP FAST] Write an equation of the line below.
Answer:
y=x-2
Step-by-step explanation:
the line is linear with a slope of 1/1
the y int is -2
plug into y=mx+b
y=x-2
Solve for x: 2 | x -1 | = 8
Answer:x=4
Step-by-step explanation:
Answer:
x=5,-3
hope that helped you:)
please mark me brainiest
tryina to get 4 brainiest
Need help to solve this ASAP #6
Answer:
x = 20
Step-by-step explanation:
The length of the segment EG can be obtained as the sum of the segments EF and FG, that is:
EG = EF + FG
We are given:
EF = 4x + 14
FG = 50
EG = 144
Thus, we set the equation:
144 = 4x + 14 + 50
Simplifying:
144 = 4x + 64
Subtracting 64:
80 = 4x
Dividing by 4:
x = 80/4 = 20
x = 20
Help me i really need help please
Answer:
16.4%
Step-by-step explanation:
$1665=100%
$53.40=?
53.40×100÷1665
=16.4%
If angle DEF is an isosceles triangle with DE congruent to EF, Find x
Answer:
Fourth choice, 16
Step-by-step explanation:
The 2 angles are both 74 degrees, so the side that is facing each angle will be the same length, so:
9x - 73 = 3x + 23
add 73 to both sides
9x = 3x + 96
subtract 3x from both sides
6x = 96
divide by 6
x = 16
Because commons foods have been labeled with scientific terms in the past, the FDA instituted regulation in 2006 that says the label must use the common names (i.e., milk).
False
True
Answer:
True
Step-by-step explanation:
Five times the sum of a number and six is equal to three times the difference of a number and ten.
Answer: 6x + 6
Step-by-step explanation:x = the number 5x + (x + 6) {five times the number added to the sum of the number and six} = 5x + x + 6 {took out parentheses}
Which amount is largest? 1kg 1dg 100g 1000mg
Answer:
your answer would be 1kg
Step-by-step explanation:
Answer: The largest one is 1kg
Step-by-step explanation:
what is f(x)=4*(1/2)^x
Answer:
f(x)=4/2x
i dont have no explanation
[50 pts] An even number, n, times the next consecutive number, n + 2, is equal to 168. Find the original number.
We are given:
An even number 'n', multiplied by the next consecutive even number is 168
Solving for n:
From the given statement, we can say that:
n(n+2) = 168 [n multiplied by the next even number 'n+2']
n² + 2n = 168
n² + 2n - 168 = 0 [subtracting 168 from both sides]
We can see that we now have a quadratic equation, solving using splitting the middle term
n² + 14n - 12n - 168 = 0
n(n + 14) -12(n + 14) = 0 [factoring out common terms]
(n-12)(n+14) = 0
Here, we can divide both sides by either (n-12) OR (n+14)
Checking the result in both the cases:
(n + 14) = 0/(n-12) (n-12) = 0/(n+14)
n + 14 = 0 n - 12 = 0
n = -14 n = 12
Both these values are even and since we are not told if the number 'n' is positive or negative, both 12 and -14 are the possible values of n
Multiply (use the distributive property): 4(x-3)
Pls don't mess around I need this
Step-by-step explanation:
you need to mulitiply the 4 to x and -3
4x-12
if you need to solve for x: 4x=12
X=3
The answer is 4x-12
if you multiply 4 times x it is 4x, and if you multiply 4 by negative 3(-3) the answer is negative 12 (-12), so you put 4x together with -12 that would be 4x-12
help plzzz ill give extra points dawg
Answer:
The answer is z= 7.5
Step-by-step explanation:
Answer:
Step-by-step explanation:
56
How do I solve 2-2|7+2x|=0
Answer:
x=-3
x=-4
Step-by-step explanation:
-2|7+2x|=-2
|7+2x|=1
7+2x=1
x=-3
7+2x=-1
x=-4
need help ASAP midterm
- 70 points
Answer:
I believe it is c
Step-by-step explanation:
yes they are the same triangle
Step-by-step explanation:
G(-4)=?
=>Khan Academy Algebra question<=
Which algebraic rule describes the 90° clockwise rotation about the origin?
A) (x, y) = (-x, y)
B) (x, y) = (x,-y)
C) (x, y) - (y, -x)
D) (x,y) - (-y, x)
Answer:
c
Step-by-step explanation:
How do you expand and simplify :
(x+3)^2
Answer: x^2 + 6x + 9
Step-by-step explanation:
first, you square everything.
x^2 + 2x x 3 + 3^2
then, you calculate/evaluate.
x^2 + 6x + 9