Answer:
- 4/5
Step-by-step explanation:
Step 1:
n + 7/10 = - 1/10
Step 2:
n = - 1/10 - 7/10
Answer:
n = - 4/5
Hope This Helps :)
Step 1: –3x – 5 = 13 Step 2: –3x = 18 Step 3: x = –6 Which sequence describes the inverse operations used for steps 2 and 3 to solve the linear equation?
Answer:
Apply inverse law
a a⁻¹ = 1
The solution of the given linear equation is x = -6
Step-by-step explanation:
Step(i):-
Given equation -3 x-5=13
Adding '5' on both sides, we get
- 3 x - 5 + 5 = 13 + 5
- 3 x = 1 8
step(ii):-
apply inverse law
a a⁻¹ = 1
(- 3)(-3)⁻¹ x = 18 (-3)⁻¹
x = 18/-3 = -6
(or)
Dividing '-3' on both sides , we get
[tex]\frac{-3 x}{ -3} = \frac{18}{-3}[/tex]
x =- 6
l= a+(n-1)d
SOLVE FOR N
Answer:
[tex]n = \frac{l-a}{d}+1[/tex]
Step-by-step explanation:
[tex]l= a+(n-1)d\\[/tex]
[tex]l -a =(n+1)d[/tex]
Divide both sides of the equation by d
[tex]\frac{l-a}{d} = \frac{(n-1)}{d}\\ \\\frac{l-a}{d} = n-1\\\\\frac{l-a}{d}+1 = n[/tex]
The set of factors below show the common factors of which set of numbers?
Set: 1,2,4,8
Answer:
C
Step-by-step explanation:C
Which of the following ratios are equivalent to 60%?
Check all that apply.
O A. 4:6
OB. 10:20
O C. 12:36
O D. 3:5
O E. 15:25
Answer:
D. 3:5 and E. 15:25
Step-by-step explanation:
If it is 60%, it means that the ratio is 6:10 (60/100).
Because both 6 and 10 are divisible by 2, we can then simplify the ratio to 3:5.
Therefore it is D. 3:5
We can then multiply both sides by 5 which will give us 15:25, so E is also correct.
The others of not correct because they are not equivalent to the ratio 3:5.
Hope this helped!
A taxi cab charges $1.50 for the flat fee and $0.50 for each mile. Write an inequality to determine how many miles Sharon can travel if she has $25 to spend
Answer:
agree with previous answer
1. Given: AB = 64; M lies on the line AB
AM = 4x + 4 BM= 6x-10
Prove: M is a midpoint.
Statements: Reason:
1) M lies on AB 1) Given
AB= 64
2) AM+MB=AB 2) ?
3) 4x+4+6x-10=64 3) ?
4) 10x- 6 = 64 4) ?
5) 10x=70 5) ?
6) x = 7 M 6) ?
7) AM= 4(7) + 4 7) substitution
MB = 6(7) - 10
8) AM=32 and 8) simplify
Mb = 32.
9) M is a midpoint. 9) ?
Reasoning bank for #1
Addition Property of equality
Combine like terms
Definition of midpoint.
Division property of equality
Segment addition postulate
Answer:
Step-by-step explanation:
Given the following lengths AB = 64, AM = 4x + 4 and BM= 6x-10, If M lies on the line AB then AM+MB = AB (addition property)
Substituting the given parameters into the addition property above;
AM+MB = AB
4x + 4 + 6x - 10 = 64
combine like terms
4x+6x = 64+10-4
10x = 74-4
10x = 70
Divide both sides by 10
x = 70/10
x = 7
Note that for M to be the midpoint of AB then AM must be equal to BM i.e AM = BM
To get AM ;
Since AM = 4x+4
substitute x = 7 into the function
AM = 4(7)+4
AM = 28+4
AM = 32
Similarly, BM = 6x-10
BM = 6(7)-10
BM = 42-10
BM = 32
Since AM = BM = 32,. then M is the midpoint of AB
The medicinal thermometer commonly used in homes can be read to pm0.1°F, whereas those in the doctor's office may be accurate to pm0.1°C. In degrees Celsius, express the percent error expected from each of these thermometers in measuring a person's body temperature of 38.7°C.
Correct question is;
The medical thermometer commonly used in homes can be read +/-0.1 °F, whereas those in the doctor's office may be accurate to +/- 0.1 C in degrees Celsius, express the percent error expected from each of these thermometers in measuring a person's body temperature of 38.9 °C
Answer:
A) percent error in homes = 0.144 %
B) percent error in doctors office = 0.257 %
Step-by-step explanation:
A) Temperature is 38.9° C
Converting to Fahrenheit using the formula; (°C × 9/5) + 32
So;
(38.9°C × 9/5) + 32 = 102.02 °F
Since thermometer in homes can be read to +/-0.1 °F, then
Expected values = 102.02 +/- 0.1 = 102.12 °F or 101.92 °F
Since we want to find the error from °C, let's convert to °C.
We will use 101.92 °F.
Thus; 102.12 °F = (101.92 - 32) × 5/9 = 38.844 °C
Thus percent error = (38.9 - 38.844)/38.9) × 100% = 0.144 %
B) Temperature is 38.9 °C
Since thermometer in Doctors office can be +/- 0.1 °C, then;
Expected values = 38.9 +/- 0.1 = 38.8 °C or 39 °C.
We will use 38.8°C
Thus;
percent error = (38.9 - 38.8)/38.9) × 100% = 0.257 %
what is the value of 8 to the power of 0
Answer:
1
Step-by-step explanation:
:)
Subtract. (3x+3)–(3x+3)
your answer will be 0.
Determine whether the equation represents a direct variation. If it does, find the constant of variation. 4y=3x+5
Answer:
Step-by-step explanation:
A car travels 200 meters, then turns right and travels 80 meters and finally makes a U-turn and travels another 120 m. If this is all done in 200
seconds, what is the average speed ?
help pleaseeeee
Answer:
2 m/s
Step-by-step explanation:
Since speed is total distance over time, we first need to find the total distance the car traveled.
Total distance = 200 + 80 + 120 = 400 m
total time = 200 sec
speed = distance/time = 400/200 = 2 m/s
If you would like more help in math or other subjects for FREE, check out growthinyouth.org.
Solve each equation –7x = 63
-7x=63
-x=63/7
-x=9
-9x
seven kilometers is how many meters
Answer:
Step-by-step explanation:
Hello,
1km=1000m, right?
so 7km = 7 * 1000 m = 7000m
thanks
somebody help. which one?
Answer:
45
Step-by-step explanation:
you can use m a th w ay to help you
.Write the product of 4x104
Answer:
416
Step-by-step explanation:
what is 90 percent of 20 percent
Answer:
18
Step-by-step explanation:
Every 2 is 10 percent.
2 x 9 = 18.
The answer is 18.
Answer:
18%
Step-by-step explanation:
change 90 to a decimal and 20 and multiply then you would get 18 add a % sign and you have your answer
15 points!! easy question please help, need it asap! will mark brainliest to whoever gets it right, please!!
Answer:
x = 6
Step-by-step explanation:
find the x value for one triangle then times it by 2
Pythagorean Theorem: [tex]a^{2}+b^{2}=c^{2}[/tex]
[tex]c=\sqrt{13}[/tex]
[tex]a=2[/tex]
Square c and subtract a from it.
[tex]13-4 = 9[/tex]
square root 9 to get have of the x value, then multiply it by 2
[tex]2\sqrt{9}=6[/tex]
[tex]x=6[/tex]
Find the domain of fg. f(x)=x+2 g(x)=1/x+2 a. all real numbers b. all real numbers, except 2 c. all real numbers, except -2 d. (-2,0) U [2, -2)
Answer:
all real numbers
Step-by-step explanation:
the domain will always be all real numbers
6 1/4 - 2 3/8 explain
it is 3.875
if you subract the two fraction it makes 31/8. then devide it which makes 3.875
6. State the absolute maximum using the correct notation. Start answer with abs max: Please do not put any spaces in answer.
Answer:3.5:80
Step-by-step explanation:
common sense
Jane is in charge of making a banner for the basketball game this Saturday. She measures how long the banner is before painting it. She finds it measures 10meter
Answer:
It can either be length , width or the perimeter of the banner
Step-by-step explanation:
The measurement of 10 meters that Jane took after measuring how long the banner is before painting is the LENGTH of the banner.
This is clear from the unit of what she finds (meters). It only indicates the measurement of one part of the banner, even though a banner has two parts, the length and width.
HELP!! 13 POINTS OFFERED
15 = 2x – 10 step and solution
Answer:
12.5 =x
Step-by-step explanation:
15 = 2x – 10
Add 10 to each side
15+10 = 2x – 10+10
25 = 2x
Divide by 2
25/2 = 2x/2
12.5 =x
Answer:
25/2
Step-by-step explanation:
2x-10=15
+10 +10
2x=25
divide both sides by 2 to get 25/2
the product of eleven and five times a number multiplied by four
Answer:
220
Step-by-step explanation:
I hope this helps you
Nicole used 3/8 of her ribbon to wrap a present. If she used 6 feet of ribbon for the present, how much ribbon did Nicole have at first? Rewrite the problem as a multiplication question.
Answer: 16
Step-by-step explanation:
From the question, we are informed that Nicole used 3/8 of her ribbon to wrap a present and that she used 6 feet of ribbon for the present,
To know how much ribbon did Nicole have at first goes thus:
Let the ribbon Nicole has at first be y
Since she used 3/8, this will be:
3/8 × y = 6
3y/8 = 6
Cross multiply
3y = 6 × 8
3y = 48
y = 48/3
y = 16
She had 16 ribbons at first
Last week, Donnell practiced the piano 3 hours longer than Marcus. Together, Marcus and Donnell practiced the piano for 11 hours. For how many hours did each young man practice the piano?
Answer:
4 hours and 7 hours
Step-by-step explanation:
Marcus = x hours
Donnell = x + 3 hours
Total = 11 hours
x + x + 3 = 112x + 3 = 112x = 8x = 4So Marcus practiced 4 hours and Donnell practiced 7 hours
Answer:Marcus=4 Donnell=7
Step-by-step explanation:11-3=8
8÷2 =4
4+3=7 hours used by Donnell
Remaining 4 hours is used by Marcus
which expression describes the set of numbers given by the interval:
Answer:
A
Step-by-step explanation:
Looking at the interval, we can see that this includes all of the numbers coming from negative infinity all the way up to -1.
In other words, the set being described here are all the numbers less than or equal to -1.
Another way to write this is all numbers no more than -1.
Thus, our answer is A.
And we're done!
HELP PLEASE
Order the numbers from LEAST to GREATEST
-5/6, -1/2, 2/3
Answer:
-5/6,-1/2,2/3
Step-by-step explanation:
ABC and QRS are complementary angles. ABC:41 so what is QRS
Answer:
49
Step-by-step explanation:
Complementary angles always add up to 90 degrees, so make and equation. First, say that angle ABC and angle QRS add up to ninety degrees. Substitute the values to get 41 degrees plus angle QRS equals 90 degrees, and once you subtract 41 from both sides, you get angle QRS equals 49 degrees.
Hope this helps. :)
The QRS is 49
Important information:ABC and QRS are complementary angles. ABC:41 calculation:We know that
The complementary angles are those whose sum is 90 degrees
So,
x + 41 = 90
x = 49
So, QRS = 49
Learn more about the angle here: https://brainly.com/question/2368234
What is -3 to the power of 5?
Answer:
-243
Step-by-step explanation:
-(3)^5
-3 x -3 x -3 x - 3 x - 3
=>-243