Answer:
x=20
Step-by-step explanation:
-12+x=8
Add 12 on both sides (-12 + 12 + x = 8 + 12)
which crosses out -12
and then you get x=20
x-16=9(2x+3)-9 find x
Answer:
x= -2
TO MUCH STEPS
For what value of x is line f parallel to line g?
Answer:
13
Step-by-step explanation:
So the concept is that co-interior angles add up to 180 in parallel line. This means:
3x + 9 + 9x + 15 = 180
So we solve for x.
12x + 24 = 180 ( What I did was simplifying the equation).
12x + 24 - 24 = 180 - 24
12x / 12= 156 / 12
x = 13
HOPE THIS HELPED
Is ""2.345432543..."" a rational number
Answer:
Yes, it is a rational number
Step-by-step explanation:
A rational number is any integer, fraction, terminating decimal, or repeating decimal.
Question 11 of 40
Solve the inequality.
4x < 20
A. X> 5
B. x < 5
C. x < 80
D. X> 80
I know it’s 5 just which way is the sign supposed to point?
Answer:
b
Step-by-step explanation:
4x<20
4/4 x < 20/4
x<5
Consider the linear equation y=4x-7 find the value of y that makes the given ordered pair a solution to the equation (3, y) Y=
The ____ of the ratio of two proportional qualities?
Answer:
2
Step-by-step explanation:
its 2
Herman and his dad are leaving early in the morning for his lacrosse tournament. Their house is 210 miles from the tournament. They plan to stop and eat after 2 hours of driving, then compete the rest of the trip. Herman's dad plans to drive at an average speed of 60 miles per hour. How long will the second part of the trip take
The second part of the trip took 1.5 hours.
Average Speed is the ratio of the total distance travelled to the total time taken to cover that distance. It is given by:
Average Speed = total distance ÷ total time
Given that the distance from the house to the tournament is 210 miles, hence:
Total distance = 210 miles
Also, The journey was in two parts, the first part took 2 hours. Let the second part take t hours. Therefore:
Total time = t + 2
The average speed of 60 miles per hour, hence:
60 = 210 ÷ (t + 2)
60(t + 2) = 210
60t + 120 = 210
60t = 90
t = 1.5 hours
Therefore the second part of the trip took 1.5 hours.
Find out more at: https://brainly.com/question/9834403
Find the midpoint of (-6,2) (-4,-11)
Answer:
(-5,-4.5)
Step-by-step explanation:
0.8% of 150 is what numbers and how do you write the equation with a variable in it.
Answer:
1.2
Step-by-step explanation:
1. First, we have to write an equation with a variable! Given 0.8%, we know that it's equal to (0.8/100), and "of" means to multiply. Therefore, the equation will looks like this: [tex]\frac{0.8}{100} * 150 = x[/tex]
2. Now, let's solve for x!
[tex]\frac{0.8}{100} * 150 = (0.008)(150)[/tex] [tex](0.008)(150) = \frac{6}{5}[/tex] [tex]\frac{6}{5} = 1\frac{1}{5}[/tex] [tex]1\frac{1}{5} = 1.2[/tex] [tex]1.2[/tex]Therefore, 0.8% of 150 is 1.2!
solve for the value of r
Answer:
[tex]r = 13[/tex]
Step-by-step explanation:
[tex](8r + 5) + (5r + 6) = 180 \\ 13r + 11 = 180 \\ 13r = 180 - 11 \\ 13r = 169 \\ \\ r = \frac{169}{13} \\ \\ r = 13[/tex]
Liv earns $9.50 for every two bracelets she sells. The equation y = 4.75x can be used to represent this situation.
What is the constant of proportionality? Express your answer in decimal form.
Answer:
2.58
Step-by-step explanation:
A REALITY OF RATIONAL ALGEBRAIC EXPRESSIONS
Rational equations can be used to solve a variety of problems that involve rates, times and work. Using rational expressions and equations can help you answer questions about how to combine workers or machines to complete a job on schedule.
Statement (Mathematical Steps) 12 > 7(4 + 5) − 19 show ecah reasonReason
Answer:
4 23/42 ≅ 4.547619
Step-by-step explanation:
Kayleigh has 2 apples for every 3 oranges in her fruit basket. If Kayleigh has 15 oranges altogether in her basket, how many apples must she have in her basket?
5 apples 10 apples
25 apples 15 apples
She will have 10 apples because there is a 2:3 ratio.
Answer:
10 apples.
Step-by-step explanation:
Consider the graph of f(x).
12
10
-6
- 4
120
2 4 6 8
Which statements are true about tthe function represented by the graph?
Select all that apply.
The y-interceptis (0.-2).
The x-interceptis (0,5).
The domain of the function is (-3.3)
The domain of the function is all real numbers.
Answer:
The domain of the function is all real numbers.
Step-by-step explanation:
The answer is not A because the y-axis is the vertical (straight up and down) axis, and it crosses of that at positive 5.
The answer is not B because the x-axis is the horizontal axis, and it crosses that at negative 2.
Don't let them confuse you by saying the intercepts of one is the other!
It is also not C because the answer is D, we know this because the arrows at each end of the arrow signify that the line keeps going infinitely in each direction.
Hope this helps!
Could someone please help answer this (homework help) will give brainliest, please no spam, thank you!
Answer:
m= 4(25) + 2(7)
m= 100 + 14
m= 114
5. Which of the following is a sign that you have a budget deficit?
Your savings account balance grows every month.
. You overdraw your checking account on a consistent basis (with a $25 cost per overdraft).
Your checking account balance grows every month.
3/5 × 7 1/2 ÷ 2 7/10
Answer:
simplify??
Step-by-step explanation:
Exact form:5/3
Decimal form:1.6
Mixed number form:1 2/3
Please when giving answer please show the work my teacher won’t let me turn it in with just the answer
Answer:
5000 millimeters
Step-by-step explanation:
5*1000=50
Solve the equation. 6x+7=8x−15
x=11
Step-by-step explanation:
6x+7=8x-15
7+15=8x-6x
22=2x
x=22/2
x=11
9 to the power 18 = 27 to the power x work out the value of x
Answer:
Step-by-step explanation:
27^x = 9÷(3^x)
So (3^3)^x = (3^2)÷(3^x)
So 3^3x = 3^(2-x)
Comparing powers on both sides,
3x = 2 - x
So, 4x = 2
So, x = 1/2
Given ( 27 ) ^ x = 9 / 3 ^x
⇒ ( 3 × 3 × 3 )^x = ( 3 × 3 ) / 3^x
⇒ ( 3 ³ )^x = 3² / 3^x
⇒ 3 ^ 3x × 3^x = 3² [ since ( a ^m)^n = a ^mn ]
⇒ 3^ (3x +x) = 3² [ since a^m × a^n = a ^m+n ]
⇒ 3^4x = 3²
⇒4x = 2 [ since If a ^m = a ^n then m = n ]
⇒ x = 2 / 4
∴ x = 1 / 2
I hope this helps you.
the sum of three numbers is 106. the first number is 6 less than the second. the third is 2 times the first
Answer: 31/25/50
Explanation: 31 is the second one. 6 less than second is 25 which is the first one, and third is 2x the first so 50
50 + 25 + 31 = 106
3x²-x+1 is a factor of ax⁴+bx³+12x² - 6x + 1 . Then a-b equals
Answer:
a-b = 31 (a ≠ b)
Step-by-step explanation:
(3x²-x+1)(px²+qx+1) = ax⁴+bx³+12x² - 6x + 1
3px⁴+(3q-p)x³+(3+p-q)x²+(q-1)x+1 = ax⁴+bx³+12x² - 6x + 1
q-1 = -6 q = -5
3+p-q = 3+p-(-5) = 8+p = 12 p = 4
b = 3q-p = 3*(-5) - 4 = -19
a = 3p = 3*4 = 12
a-b = 12 - (-19) = 31
what is 9,340 x 4/3.
Answer:
12453.3333333
Step-by-step explanation:
4/3 is the same things as 4 ÷ 3 which is 1.33333333333
1.33333333333*9340 = 12453.3333333
Hope this helps!
A recipe called for the ratio of sugar to flour to be 8 : 7.If you used 48 ounce of sugar, how many ounces of flour would you need to use?
Answer:
42 ounces of flour
Step-by-step explanation:
8 - 48
7 - x
When you cross multiply, you get:
8x = 7*48
8x = 336
x = 336/8
x = 42
Feel free to mark this as brainliest! :D
Please helpppppp!!!!
Answer:
3 times
Step-by-step explanation:
In class today, we had 98 notebooks and 70 children.If each child gets two notebooks, how many more notebooks will we need?
Answer:
42
Step-by-step explanation:
times 70 by two to get how many notebooks needed total.
70*2=140
subtract how many notebooks you already had.
140-98=42
The no. of notebooks we need more will be equal to 42 notebooks.
It is given that no. of notebooks available is 98 and there are 70 children in class.
We have to find no. of notebooks needed more if each child gets two notebooks.
What is algebra ?
Algebra is the branch of mathematics that deals with various symbols and the arithmetic operations and the symbols are called variables.
As per the question ;
No. of notebooks we had in class = 98 notebooks
And
Total no. of children = 70 children
The no. of notebook each child gets = 2 per child
So ;
70 children will get no. of notebooks ;
= 70 × 2
= 140 notebooks
The no. of notebooks we need will be ;
= 140 - 98
= 42 notebooks
Thus , the no. of notebooks we need will be equal to 42 notebooks.
To learn more about algebra click here ;
https://brainly.com/question/22516053
#SPJ2
B is the midpoint of AC. if ac =10 and BC =x+1 find the value of x
Answer:
x=9
Step-by-step explanation:
x+1=10
*subtract 1 from both sides
x=9
A factory uses 220,000 gallons of water to produce
2 tons of steel. How many gallons of water are
needed to produce 1 pound of steel?
A 55 gallons
B 110 gallon
C 110,000 gallon
D 440,000 gallon
what is the estimate of 19,369
Answer:
19,500
Step-by-step explanation:
This is probably a good one.