Answers
Answer:
x = 2
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityStep-by-step explanation:
Step 1: Define
10.5x - 1.9 = 19.1
Step 2: Solve for x
Add 1.9 to both sides: 10.5x = 21Divide 10.5 on both sides: x = 2Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: 10.5(2) - 1.9 = 19.1Multiply: 21 - 1.9 = 19.1Subtract: 19.1 = 19.1Here we see that 19.1 does indeed equal 19.1.
∴ x = 2 is a solution to the equation.
Related Questions
Note: Figure not to scale
What is the measure of the angle marked y?
Answers
Answer:
y = 48°
Step-by-step explanation:
In parallelogram STVU,
[tex] m\angle TVU + 60\degree = 180\degree[/tex] (linear pair angles)
[tex] m\angle TVU = 180\degree - 60\degree [/tex]
[tex] m\angle TVU = 120\degree [/tex]
[tex] m\angle UST= m\angle TVU =120\degree [/tex](Opposite angles of a parallelogram)
[tex] m\angle USR= 120\degree(\because S-R-T) [/tex]
[tex] 108\degree + m\angle USR+m\angle PSR= 360\degree[/tex]
[tex] 108\degree + 120\degree+m\angle PSR= 360\degree[/tex]
[tex] 228\degree + m\angle PSR= 360\degree[/tex]
[tex] m\angle PSR= 360\degree - 228\degree [/tex]
[tex] m\angle PSR= 132\degree [/tex]
[tex] y+m\angle PSR= 180\degree [/tex]
(Adjacent angles of a parallelogram)
[tex] y+ 132\degree= 180\degree [/tex]
[tex] y= 180\degree-132\degree[/tex]
[tex] y= 48\degree[/tex]
Steve decreased the number of miles he ran from 25 to 18 . By what percent did the number of miles decrease
Answers
Answer:
Percentage decrease = 28%
Step-by-step explanation:
Original distance = 25 miles
New distance = 18 Miles
Change in distance = 25 - 18
= 7 miles
Percentage decrease = change in distance / original distance × 100
= 7/25 × 100
= 0.28 × 100
= 28%
Percentage decrease = 28%
please help first person gets brainlist
Answers
Answer:
180 degrees
Step by step explanation:
it's two 90 degree angles put together.
Scott earned 20 points more on his most recent math test than he earned on the previous test. If he earned at least 80 points on the most recent math test, how many points did he earn on the previous test?
Question 16 options:
s 60
s ≤ 60
Answers
Answer:
it would be 60 on the previous test because 80-20=60
i dont know what the answer choice would be
hope this helps
have great day/night
I NEED HELP ASAP!!! DUE AT 11:45
Answers
If the radius is 11 mm, what is the height? Round the answer to the nearest tenth of a millimeter. 3.8 mm 3.8 mm3 14.7 mm 14.7 mm3
Answers
Answer: the answer is C. 14.7 mm
Step-by-step explanation:
Just took the quiz :)
Answer:
It's 14.7
Step-by-step explanation:
I just did the assignment(:
Determine whether this equation has no solution, one solution, or infinitely many solutions
8p + 1 = 4p +2
Answers
Answer:
the equation has one solution, p = 1/4
Step-by-step explanation:
8p + 1 = 4p + 2
subtract 4p from both sides of the equation
8p - 4p + 1 = 4p - 4p + 2
8p - 4p + 1 = 2
4p + 1 = 2
subtract 1 from both sides of the equation
4p + 1 - 1 = 2 - 1
4p = 2 - 1
4p = 1
divide both sides of the equation by 4
4p/4 = 1/4
p = 1/4
A mail truck picks up two boxes of mail from the post office. The total weight of the boxes is 35 pounds. One box is 5 pounds heavier than the other box.
How much does each box weigh?
The lighter box weighs pounds and the heavier box weighs pounds.
Answers
Answer:
30
Step-by-step explanation:
Can someone help me I tried many ways but got a different answer
Answers
Answer:
v = 21
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Algebra I
Terms/Coefficients/DegreesGeometry
All angles in a triangle add up to 180°Step-by-step explanation:
Step 1: Set Up Equation
2v + 3v + 75 = 180
Step 2: Solve for v
Combine like terms: 5v + 75 = 180Isolate v term: 5v = 105Isolate v: v = 21Answer:
21 degrees
Step-by-step explanation:
3v + 2v + 75 = 108
3v + 2v = 5v
5v + 75 = 108
-75 -75
÷5. 105
÷5 = 21
X=21
Compare A and B if 70% of A is equal to $0.7a and 35% of B is equal to $0.35a
Please help! I'm stumped
Answers
Answer:
A=B
Step-by-step explanation:
Equation 1: 70% of A = 0.7a
Equation 2: 35% of B = 0.35a
Equation 3 = (Equation 2) • 2
Equation 3: 70% of B = 0.7a
Equation 3 = Equation 1
A = B
The required solution of the given condition is A = B.
What is the percentage?The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
Here,
70% of A = 0.7a
A = 0.7 / 0.7a
A = a - - - - (1)
Now,
35% of B = 0.35a
B = 0.35 / 0.35a
B = a - - - - - (2)
From equation 1 and 2
A = B
Thus, the required solution of the given condition is A = B.
Learn more about percentages here:
brainly.com/question/13450942
#SPJ2
Lucy is driving to her aunt's house. The table shows the amount of gasoline in Lucy's car after the given number of hours driving. Determine the
initial amount of gasoline in the car when she started the trip. Assume that the relationship between the two quantities is linear.
a. 14
b. 12
c. 2
d. 0
Answers
Answer:
the answer is b 12
Step-by-step explanatio
If i roll 2 dice what is the probability that both of them are prime and even?
Answers
Answer:
[tex]\frac{1}{36}[/tex]
Step-by-step explanation:
Think of the possibilities of #s each dice can roll: 1 - 6. Only 2 is prime and even meaning that's only one of six possibilities. Since rolling two dice are two subsequent events, multiply the probabilities which should be exactly the same. [tex]\frac{1}{6} *\frac{1}{6}=\frac{1}{36}[/tex]
Uhm help pleaseeee ?
Answers
Answer:
8=73 degrees
5=107 degrees
Step-by-step explanation:
Please mark me brainliest :D
Answer:
Angle 5 is 107 degrees
Angle 8 is 7s degrees
Step-by-step explanation:
First find angle 5. Since the lines are parallel and cut by a transversal, we can say that Angle 3 and Angle 5 are congruent (same measure) since they are alternate interior angles.
Since Angle 3 is 107 degrees, Angle 5 would also be 107 degrees.
Angle 8 is supplementary to Angle 5.
Angle 5 + Angle 8 = 180
Since we know Angle 5 is 107: 107 + Angle 8 = 180
Angle 8 would then be 73 degrees.
What is the measure of
Answers
Answer:
measure of what?
Step-by-step explanation:
which value does w make true PLS HELP ME NOW IF U HELP U GET BRAINLISTED
Answers
Answer:
A is the answer ,I am very sure
Step-by-step explanation:
111 is what percent of 300
Answers
Step-by-step explanation:
111/300 x 100
111/3
=37%
I will mark you as BRAINLIEST if you give me the correct answer in details
Do 9, 11, 12, 13
PLEASE GIVE ALL DETAILS
Answers
Answer:
The answer is below
Step-by-step explanation:
9) The area of the platform = length * width = 9 m * 12 m = 108 m²
Area = 108 m²
11) 1 km² = 1 km × 1 km = 1000 m × 1000 m = 1000000 m²
But 1 hectare = 10000 m², hence:
1000000 m² = 1000000 m² / 10000 m² per hectare = 100 hectares
1 km² = 100 hectares
12) Area of each paper = 16 cm * 12 cm = 192 cm²
There are 48 sheets, hence:
Total area of sheets = 192 cm² * 48 = 9216 cm²
13) Area of each tile = 12 cm * 10 cm = 120 cm²
The kitchen contains 500 tiles, therefore:
Area of kitchen = 120 cm² * 500 tiles = 60000 cm²
1 m² = 10000 cm²
60000 cm² = 60000 cm² / 10000 cm² per m² = 6 m²
Area of kitchen = 6 m²
How many acute angles does a heptagon have?
Answers
Answer:
4 side is the answer I am sure
Answer:
None.
Step-by-step explanation:
I assume we are talking about a regular heptagon.
This has 7 sides and 7 internal angles.
Each internal angle = 180 - (360/7) = 128.6 degrees which is an obtuse angle.
the sum of two number is 45.if one of them is 27 ,find another
Answers
Answer:
is 18
Step-by-step explanation:
simple you just subtract 27 for the original number
you need to do 45 subtract 27 which gives you 18
The slope of a line ST = −1. What is the value of y if S = (3,−2) and T = (−3,y).
How would I solve this?
Answers
Answer:
hope it helps thnk u .....ask if any queries
What is the slope of the points
(-2,5) and (4,-6)?
Answers
Answer:
-11/6
Step-by-step explanation:
35PTS if u can solve!!!
What is the value for y?
Answers
Answer:
y=14
x=25
Step-by-step explanation:
A line has a slope of 1 and passes through the point (13,1) What is its equation in slope intercept form?
Answers
Answer:
y = x - 12
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 1 , then
y = x + c ← is the partial equation
To find c substitute (13, 1) into the partial equation
1 = 13 + c ⇒ c = 1 - 13 = - 12
y = x - 12 ← equation of line
Need help
Use <,>,= to make a true statement
The square root of 54_7.4
Answers
Answer:
Answer is<
Step-by-step explanation:
the square root of 54 is 7.34<7.4
simplify the following expression as much as you can use exponential properties. (6^-2)(3^-3)(3*6)^4
Answers
Answer:
Simplifying the expression [tex](6^{-2})(3^{-3})(3*6)^4[/tex] we get [tex]\mathbf{108}[/tex]
Step-by-step explanation:
We need to simplify the expression [tex](6^{-2})(3^{-3})(3*6)^4[/tex]
Solving:
[tex](6^{-2})(3^{-3})(3*6)^4[/tex]
Applying exponent rule: [tex]a^{-m}=\frac{1}{a^m}[/tex]
[tex]=\frac{1}{(6^{2})}\frac{1}{(3^{3})}(18)^4\\=\frac{(18)^4}{6^{2}\:.\:3^{3}} \\[/tex]
Factors of [tex]18=2\times 3\times 3=2\times3^2[/tex]
Factors of [tex]6=2\times 3[/tex]
Replacing terms with factors
[tex]=\frac{(2\times3^2)^4}{(2\times 3)^{2}\:.\:3^{3}} \\=\frac{(2)^4\times(3^2)^4}{(2)^2\times (3)^{2}\:.\:3^{3}} \\[/tex]
Using exponent rule: [tex](a^m)^n=a^{m\times n}[/tex]
[tex]=\frac{(2)^4\times(3)^8}{(2)^2\times (3)^{2}\:.\:3^{3}} \\=\frac{2^4\times 3^8}{2^2\times 3^{2}\:.\:3^{3}}[/tex]
Using exponent rule: [tex]a^m.a^n=a^{m+n}[/tex]
[tex]=\frac{2^4\times 3^8}{2^2\times 3^{2+3}}\\=\frac{2^4\times 3^8}{2^2\times 3^{5}}[/tex]
Now using exponent rule: [tex]\frac{a^m}{a^n}=a^{m-n}[/tex]
[tex]=2^{4-2}\times 3^{8-5}\\=2^{2}\times 3^{3}\\=4\times 27\\=108[/tex]
So, simplifying the expression [tex](6^{-2})(3^{-3})(3*6)^4[/tex] we get [tex]\mathbf{108}[/tex]
Find 0.2 of 0.5 Plz help
Answers
Answer:
The answer is 0.001.
Step-by-step explanation:
1% of 0.5 = 0.5/100 = 0.005.
0.2% of 0.5 = 0.2 x 0.005 = 0.001.
Answer:
0.10
Step-by-step explanation:
Solution given:
Over here
of means multiplication.
so
0.2 of 0.5=0.2*0.5=0.10
Compatible numbers 655 divided by 35 ——divided by 40 What is the Compatible Number for 655? I have tried every multiple five and the computer program won't let me move on because I have the wrong answer
Answers
Answer:
600 is compatible of 655 and 40 is compatible of 35
Step-by-step explanation:
Compatible number is the number which is easy to calculate without using pen and paper or in other words mentally
compatible number of 655 divided by 35 is 600 and 40
where 600 is compatible of 655 and 40 is compatible of 35
5+5+10-10 can someone please help me on this
Answers
Answer:
10
Step-by-step explanation:
5+5=10
10+10=20
20-10=10
please mark me as brainliest!!<3
Answer:
it is 10
5+5=10
10+10=20
20-10=10
If there are 24 boys and 60 girls in a room, fill out all of the possible ratios of boys to girls that could be made.
Answers
Answer:
equivalent to 24 out of 60: 12/30, 6/15, 2/5
Step-by-step explanation:
the product of age of a person 10 year ago and 10 year after is 156.find
Answers
Answer:
The age of the person now is 16 years old
Step-by-step explanation:
Let us solve the question
Assume that the age of the person now is x years old
∵ The age of the person now is x years old
∵ His age 10 years ago = x - 10
∵ His age 10 years after = x + 10
∵ The product of his ages 10 years ago and 10 years after is 156
→ Multiply his ages before and after and equate the product by 156
∴ (x - 10)(x + 10) = 156
∵ (x - 10)(x + 10) = (x)(x) + (x)(10) + (-10)(x) + (-10)(10)
∴ (x - 10)(x + 10) = x² + 10x - 10x - 100
→ Add the like terms
∴ (x - 10)(x + 10) = x² + (10x - 10x) - 100
∴ (x - 10)(x + 10) = x² - 100
→ Substitute it in the equation above
∵ x² - 100 = 156
→ Add 100 to both sides
∴ x² - 100 + 100 = 156 + 100
∴ x² = 256
→ Take √ for both sides
∴ √x² = √256
∴ x = 16
∵ x represents his age now
∴ The age of the person now is 16 years old