Answers
Answer:
Step-by-step explanation:
For A, 7x=21, it is asking, 7 multiplied by what number is 21? We can try to figure it out. Let's start with 0.
7(0)≠21
Then 1.
7(1)≠21
7(2)≠21
7(3)=21
Therefore, for question a, the answer is 3.
For question b, it's asking 6 minus what is 2.
With this one, we can say it is 4, since 6-4=2.
Now moving on to B.
a) 2x+4=16
We need to isolate x in order to find it's value.
So we can begin with subtracting 4 from both sides, getting us:
2x=12
Then, if we divide both terms by 2, we get x.
x=12/2
x=6.
b)
3 x (z/4)=9
Again, we need to isolate z.
So, we multiply both sides by 4, getting us
3z=36
then we divide by 3
z=36/3
z=12
c) 16-x=2
Here we simply subtract 16 from each side, then flip the signs to get positive x.
So, 16-x=2
-x=-14
x=14
d) 4k=20
This is essentially asking, 4 times what number is 20?
So we can divide both sides by 4 and get
k=20/4
k=5
Related Questions
Describe a way to make the arithmetic problem 45% x 680 mentally
Answers
Answer:
306.
Step-by-step explanation:
Firstly, we are aware 100% of 680 is obviously 680,
Next, we know half of a 100% is 50% therefore half of 680 is 340.
Then, we know 45% is 5% less than 50%
To find 5% of a number mentally, divide it by 10 as 100÷5=20
680÷20=34
Lastly 50% subtracted by 5%: 340-34=306.
Now we know, 45% of 680 is 306.
Hope this helps.
Hope this helps.Please mark BRAINLIEST.
Graph and solve the following system.
у= 2x + 3
y = -2x + 3
Answers
graphed in the image attached with points,
hope this helps :D
1. find the measure of each angle
Answers
Step-by-step explanation:
adding both equations together makes the straight line that is QRS. straight lines are 180
you should picture a windshield wiper going side to side and you're trying to see how much farther it has to move until it straightens out at the bottom
(3x-5) + (10x-7) = 180
How many 10-bit strings have weight 1?
How many 10-bit strings have weight 5?
How many 10-bit strings have weight 9?
Answers
Answer:
ok so it will be 16-bit
Step-by-step explanation:
If f(x) = 4x - 1 and g(x) = 2x - 4, what is (f o g)(x)?
View image for answer choices!
HELP
Answers
____________
[tex] \: [/tex]
f(x) = 4x - 1
g(x) = 2x - 4
Soo :
(f o g)(x) = ...
= f(g(x))
= f(2x - 4)
= 4(2x - 4) - 1
= 8x - 16 - 1
= 8x - 17✔ (D.)
.
Ten times the smallest of three consecutive integers is 213 more than the sum of the other two integers. Find the integers.
Answers
Answer:
27,28 and 29
Step-by-step explanation:
10*a = a+1+a+2+213
10a - 2a = 216
8a = 216
a = 27
27, 28, and 29
Keith plays basketball at a gym. He can get a $20 membership card and pay $2 for every visit, or he can go any time and just pay $5 for each visit. Which two equations represent the two options for his
number of visits with his total ccost?
Answers
Step-by-step explanation:
Got it. Hope this will help.
Find the gradient of the line Joining the points p(-2,6) and Q(3,-2)
Answers
Answer:
[tex] - \frac{8}{5} [/tex]
Step-by-step explanation:
[tex]\boxed{gradient = \frac{y1 - y2}{x1 - x2} }[/tex]
(x₁, y₁) is the 1st coordinate while (x₂, y₂) is the 2nd coordinate.
Gradient of the line
[tex] = \frac{6 - ( - 2)}{ - 2 - 3} [/tex]
[tex] = \frac{6 + 2}{ - 5} [/tex]
[tex] = - \frac{8}{5} [/tex]
what is the total surface area of the prism in square inches
Answers
Answer:
Surface area of a square prism = 4 × (s × h) = 4sh, where, s is the length of the side of the square and h is the height of the square prism.
First convert the equation -x+y=-5 into slope intercept form. Graph the line by plotting the y-intercept first, then another point using the given slope.
Answers
Step-by-step explanation:
-x + y = -5
Transform to slope-intercept form, y = mx + b:
-x + x + y = x - 5
y = x - 5 (Slope-intercept form where m = 1, b = -5).
Plot the y-intercept (0, -5) on the graph. Using the "rise over run" of the slope, m = 1, the next point will be: (1, -4).
I also plotted other points (please see the attached screenshot of the graph).
1.) if a person weighs 160 pounds, what is his mass in kilograms
Answers
Answer:
72.56
Step-by-step explanation:
Divide the number of pounds by 2.205
160/2.205 = 72.56
y=4x+2 and y=-x-3. Graph
Answers
Answer:
(Hope this helps can I pls have brainlist (crown)☺️)
Step-by-step explanation:
In pic
(Credit: M a t h w a y )
What is the value of b?
b
B+42
B-20
Answers
Answer:
b=22°
Step-by-step explanation:
because b+42=b+b-20
b+42=2b-20
b-2b=-20-42
-b=-22
b=22°
How to type a line above the number 6 on chromebook.
Answers
Answer:
you put in the number 6 but you leave room uptop so enter and then put 6 for the----- so in other words
-----
6
Anyone know this im stuck on it.
Answers
Answer:
I believe the answer is C
Step-by-step explanation:
Answer:
A vertical line at a specific x-value of the domain will intersect the graph of a relation at each y-value in the range that
the x-value is mapped to by the relation. If even one such line has more than one intersection, then one input has two
or more outputs and the relation is not a function.
Happy to Help And brainliest please... I do this all the times sense I'm a honors student, let me know if you need help!
Step-by-step explanation:
what is the answer to 28.2 divided by 2
Answers
Answer:
14.1
Step-by-step explanation:
Our material handlers make $15 per hour, and it takes them about 15 minutes to complete this process. How much is our handling cost?
Answers
Answer: $3.75
Step-by-step explanation: $15x15=225/60= 3.75
Our material handling cost is $3.75.
What is cost?A cost function is a mathematical formula used to used to chart how production expenses will change at different output levels.
How to find the cost per process?Material handlers make $15 per hour
If it takes them about 15 minutes to complete this process then process in an hour is 60/15 =4
The cost per process is 15/4 =3.75.
Learn more about cost here- brainly.com/question/25233348
#SPJ2
help please if you can. Thank you
Answers
Answer:
6/11
Step-by-step explanation:
I don't know that's what my mom said
Scarlett has 14 gallons of gas in her car at the beginning of a trip. Every hour Scarlett drives, she uses 2.5 gallons of gas. Answer the questions below regarding the relationship between the gallons of gas remaining in the tank and the total hours driven.
Answers
Answer:N(5)=1.5
Step-by-step explanation:The independent variable x represents the Number of hours driven and the dependent variable is the gallons of gas remaining, because the gallons of gas remaining depends on the number of hours driven.
A function relating these variables is Nx=14-2.5
So N(5)=1.5 meaning 5 hours of driving will result in 1.5 gallons left in the tank.
Consider the rational function:
f(3) = 22-53-6
22 +31-10
Which values are restrictions on the domain of f(x)?
theres also an answer option of x=5 but it wouldnt fit in the picture
Answers
2&3
Step-by-step explanation:
You have to factorise the second equation and you have to solve it. so you have x²-2x-3x+6
x(x-2)-3(x-2)
(x-2)(x-3)=0
Then you have to find x for each equation.
x-2=0
x=2
x-3=0
x=3
So the restricions are 2&3.
Patty is ordering vests for her scout troop to wear in the Veterans Day parade. She ordered 12 vests from the Festive Features clothing shop. Since this was a bulk order, Festive Features reduced the price of each vest by $6. The total came to $132.
Which equation can you use to find the amount, v, Festive Features normally charges for a vest?
Answers
Answer:
Step-by-step explanation:
If a motorist asks for ten dollars
worth of gasoline and gasoline
is selling at $1.29 per gallon,
find the number of gallons she
will receive, to the nearest tenth
of a gallon.
Answers
Which of the following is equivalent to 6.32 X 10^-3
Answers
Answer:
c is it
Step-by-step explanation:
Rawr hope it helps
What is the slope-intercept form of -8x-2y=-24
Answers
Answer:
y=−4x+12
Step-by-step explanation:
y=−4x+12
Hope that helps
(two digit number with the sum of the digits being 8)
Answers
Answer:
The two digit numbers having sum equal to 8 are: 17,26,35,44,53,62,71,80.
Step-by-step explanation:
Fred borrows $2710 at 3.8% simple interest per month. When Fred pays the loan back 3 months later, what is the total amount that Fred ends up repaying?
Answers
Answer:
3,018.94
Step-by-step explanation:
What is the sum of the columns and rows?
Answers
Answer: 90
6+15+24=45
45*2=90 (the numbers are the same so just x2)
Is is possible to divide Pi aka : 3.14159
Answers
Answer:
If you WANT to divide pi, there is half a pi left.
Step-by-step explanation:
There are 2pi radians in a circle. So one quarter of the circle corresponds to half of pi (If you want to divide to get half of pi) . So it would then be: one quarter corresponds to a half.
(if that makes sense! sorry if it doesn't :\ )
please help with question.
Answers
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The given pair of lines are parallel to one another ~
The solution is in attachment
Answer:
neither
Step-by-step explanation:
In BOMAMS 'M' stands for
Answers
⠀⠀⠀⠀⠀⠀⠀⠀⠀➥ B = Bracket
⠀⠀⠀⠀⠀⠀⠀⠀⠀➥ O = Open
⠀⠀⠀⠀⠀⠀⠀⠀⠀➥ D = Division
⠀⠀⠀⠀⠀⠀⠀⠀⠀➥ M = Multiplication
⠀⠀⠀⠀⠀⠀⠀⠀⠀➥ A = Addition
⠀⠀⠀⠀⠀⠀⠀⠀⠀➥ S = Subtraction
Answer:
B= Bracket
O= Open
D=Divide
M=Multiplication
A=Addition
S=Subtraction