7( n+3)-4n
=7n+21-4n
=7n-4n+21
=3n+21 you can leave it like this also but
=3(n+7) doing this is best
Suppose that 14 inches of the wire cost 42 cent. At the same rate, how much ( in cent) will 7 inches, of wire cost
Answer:
21 cents
Step-by-step explanation:
All you have to do is divide 42/2
Becuase 14 is 7 doubled
On a map, a hospital is located at (-42,7). A wreck occurs at (13,-14). How far must the Air Care helicopter fly to reach the wreck from the hospital. (Each unit on the map equals one mile.)
Answer:
The helicopter must cover a straight line distance of approximately 61.270 miles from the hospital to the wreck site.
:)
Step-by-step explanation:
Z-8-22
z equals what
Answer:
z=30
Step-by-step explanation:
Can someone answer this question please ASAP
Answer:
x = 2
Step-by-step explanation:
what is 16y - u + 34x when x = 2 u = 14 and y = 3
Answer:
102
Step-by-step explanation:
48-14+68
What is 10x+ 5y =30 in function form
How many minutes are in nine and one fourth hours?
Answer:
555 minutes
Hope this helps!
Answer:
555 9x60=540
540+15=555 there is your answer
remember that 1/4 of an hour is fifteen minutes
pls mark brainliest
Step-by-step explanation:
Need help ASAP please
Answer:
A- no
B- no
C-yes
D- yes
Step-by-step explanation:Anything that is inside the red is a solution. You can also plug in the points into the equation and see if its right. Thats what I did for a.
a cars value starts at $32,000. After 1 year, it is worth $27,200. What is the decay factor?
Answer:
15% × 7 = 1.05
32,000 - 1.05 = 31,998.95
31,998.95 ‐‐‐‐‐> 31,999
$31,999
(If you don't need to simplify, the answer would be $31,998.95, but I did it just incase you do)
Step-by-step explanation:
the seventh grade math classes are going on a field trip. The field trip will cost $6 per student. write an expression to find the cost of the field trip all the students in 7th grade. what is the total cost is 150 students go on the trip?
Step-by-step explanation:
8zjia5aksoo999oiyj9999999999999999999999999
Answer: 150 x 6 = 900
Step-by-step explanation:
if there are 150 students going on the field trip, and it costs 6 dollars for each student, 150 x 6 would give you the total cost, which is 900 dollars
Hello!! I have a question, can you please answer it. ^^
The school nurse is assembling first-aid kits for the teachers. She has 75 bandages and 90 throat lozenges.
All the kits must have the same number of each supply, and all supplies must be used.
a. What is the largest number of kits the nurse can make?
b. How many bandages and lozenges will be in each kit?
Answer:
1. 75
2. 1
Step-by-step explanation:
8x8x8=_______=_______
Answer:
8*8*8= 8^3= 512
Step-by-step explanation:
Answer:
8x8x8= 8^3 = 512
Step-by-step explanation:
Hope this helps
There are 32 students in the class. Of the class 3/8 of the students bring their own lunch. How many students bring their own lunch?
Please Solve so i can complete!!!!!!!! Quick Fasts
ASAP! Which side lengths form a right triangle?
Choose all answers that apply:
Answer:
c
Step-by-step explanation:
4^2+7.5^2=8.5^2
An 11-m tall building casts a shadow. The distance from the top of the building to the tip of the shadow is 14 m. Find the length of the shadow. If necessary,
round your answer to the nearest tenth.
14
11
?
Answer:
8.66 m
Step-by-step explanation:
Given that,
The distance from the top of the building to the tip of the shadow is 14 m
The height of the building is 11 m.
We need to find the length of the shadow. we can see that the length of the shadow forms the base of the triangle.
The distance from the top of the building to the tip of the shadow form hypotensue and height of the building forms perpendicular. So, we can use Pythagoras theorem to find the base.
So,
[tex]H^2=b^2+h^2\\\\b^2=H^2-h^2\\\\b=\sqrt{14^{2}-11^{2}}\\\\b=8.66\ m[/tex]
So, the length of the shadow is 8.66 m.
High-definition televisions have an aspect ratio of 16: 9. The following answer choices are television screen sizes rounded to the nearest inch. Which could be a High-definition television?
Answer:
18.5 in approx
Step-by-step explanation:
Given data
aspect ratio of 16: 9
L= 16in
W= 9 in
We want to find the diagonal of the TV
applying Pythagoras theorem
d^2= l^2+w^2
d^2= 16^2+ 9^2
d^2=256+81
d^2= 337
d= √337
d= 18.35 in
Hence the tv is 18.5 in approx
I don’t know this one pls help me
Answer:
-3, 6
Step-by-step explanation:
The solution is where the two lines intersect.
Answer:
should be (-3,6)
Step-by-step explanation:
In the triangle XYZ, the measure of ∠XYZ is 104°, and the measure of ∠YZX is 19°. What is the measure of ∠ZXY?
Answer:
∠ZXY = 57°
Step-by-step explanation:
According to angle sum property of a triangle, sum of all the angles of the triangle is [tex]180[/tex]°.
In ΔXYZ,
∠XYZ + ∠YZX + ∠ZXY = 180°
Put ∠XYZ = 104°, ∠YZX = 19°
104° + 19° + ∠ZXY = 180°
123° + ∠ZXY = 180°
∠ZXY = 180° - 123°
∠ZXY = 57°
Therefore,
∠ZXY = 57°
Answer:
57
Step-by-step explanation:
How to play the full song fires edge on bb clarinet (actual notes)
Answer:
cool
Step-by-step explanation:
4
What is the result of 2-10?
.
1
5
Answer:
-3.14530027393739338363829263839
-Step-by-step explanation:
Construct a linear function that has a slope of -3 and passes through the point (−2,3)
Answer:
f(x) = -3x - 3
Step-by-step explanation:
you can use the point-slope form to help you.
[tex]y - y_{1} = m (x - x_{1} )[/tex] m = slope and [tex](x_{1} , y_{1}) = (-2, 3)[/tex]
So, y - 3 = -3(x + 2)
y - 3 = -3x - 6
y = -3x - 3 or f(x) = -3x - 3
[tex]f(x) = -3x - 3[/tex]You can use the standard form y = mx + c to build that linear relationship.
Thus, the needed linear function is: [tex]f(x) = -3x -3[/tex]
Given that:The line has slope of -3The line passes through (-2,3)To find:The linear function
Relation between linear function and straight line:A linear function of two variables is always an equation of a straight line and can be converted into standard form y = mx + c (assuming m and c to be finite constants and x and y are variables).
m denotes slope of this line and c denotes intercept on y axis by this line.
If linear function is not of two variables, then we can take the output f(x) as value of second variable.
Since the slope is already given, thus, we have the equation as:
y = -3x + c
Now, since the line passes through (-2,3), thus it must satisfy the equation since the point is member of the family of points who constitute this line(and since the equation shows family of such points, thus the point should satisfy the equation).
Thus,
[tex]y = -3x +c|{(x,y) = (-2,3)}\\ 3 = -3 \times -2 + c\\ 3 = 6 + c\\ c = 3 - 6\\ c = -3[/tex]
Thus, we have the equation of the straight line in consideration as:
y = -3x -3
y is function of x, thus can be rewritten as [tex]f(x) = -3x -3[/tex] (assuming f doesn't represent any other function as we can't use used symbols in a context to prevent ambiguity)
Thus, the needed linear function is: [tex]f(x) = -3x -3[/tex]
Learn more about equation of straight line here:
https://brainly.com/question/19380936
Which of the following results in the difference of two squares?
a. (7x - 3y)^2
b. (4x - 9y)(4x - 9y)
c. 5x^2(4x - 3)
d. (2x + 8y)(2x - 8y)
Answer:d
Step-by-step explanation:
a) 82
b) 42
c) 98
d) 70
Answer:
option d.
let the two angle of mnp be x and y
in the trapezoid NO and MP are parallel.
so the 28° = y and 42°=x(by alternate interior angle)
so the angle mnp= x+y
angle mnp=28°+42°=70°
UM what is 53 x 4? I need to know right now.
Answer:
212 is the correct answer hope it helps
what is the
area of 3in 4in 5in
Answer:
60inches
Step-by-step explanation:
3 times 4 equals 12. 12 times 5 equals 60. so the volume should be 60 inches.
Answer:
60in squared
Step-By-Step explination:
A= L x W x H
A= 3 x 4 x 5
A= 12 x 5
A = 60in
Unit Cost for 500
Which is the better buy? Find each unit cost.
A 12-oz box of Honeycomb cereal for $4.32
Or
Chea
moviex:
COMB
A 16-oz box of Cheerios for $5.92
Put the following numbers in order from least to greatest 6.-3, 0, 4.-5
Answer:
-5, -3, 0, 4, 6
Step-by-step explanation:
Answer:
-5,-3,6,4,0
Step-by-step explanation:
I just did least to greatest
no joke i will give brainliest and thanks for the asnwer and go 5 star all ur past answers if u get this correct pls dont do wrong answers
Answer:
PR = PQ and ST = UT.
If this is not correct then:
PR = 8 ans UT = 2z+3
Step-by-step explanation:
What is the greatest common factor (GCF) of 12x and (3x^2 + 6x)?
(B) 3x
(C) X + 2
(D) 3x(x + 2)
(A) 3