55 is 40% of what number?
a. 137.5
b. 110
c. 72.7
d. 13.8
Answer:
Answer Is A
Step-by-step explanation:
Just trust me
The cost to rent a rug cleaner is $25 plus $15 per hour at Floors, Inc. At Rugs R Clean the rug cleaner costs $45 plus $7 per hour. Which inequality can be used to show how many hours you need to rent the rug cleaner so that Floors, Inc.'s charges will be same the charges at Rugs R Clean?
Answer:
25 + 15x < 45 + 7x
Step-by-step explanation:
Given:
Floors, Inc. Fixed charges = $25
Floors, Inc. Variable charges = $15 per hour
R rug clean Fixed charges = $45
R rug Variable charges = $7 per hour
Computation:
Assume number of hour = x
Floors, Inc. total cost = 25 + 15x
R rug total cost = 45 + 7x
So,
25 + 15x < 45 + 7x
please help me fill out the blanks in the bottom!
Answer:
2: 67
3:67
4: 113
Step-by-step explanation:
Answer: 67 degrees, 67 degrees, 113 degrees
Step-by-step explanation:
Angle 2: 180-113= 67 degrees
Angle 3: angle 3=angle 2
67 degrees
Angle 4: angle 4=angle 1
113 degrees
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. The Smiths are sending out a batch of holiday cards. Emily signed of the cards. Then Josh signed of the remaining cards. Tatiana signed 20% of what Josh had left. If there were 75 cards in all, how many cards are left to be signed? There are cards yet to be signed.
Answer:
You will get 75 cards
Step-by-step explanation:
The answer is 32
Emily signed 2/5 so 75 divided by 5 is 15
15x2 is 30
75-30=45
45 divided by 1/9 is 5
30+5=35
so then 45-5=40
20% of 40 is 8
30+5+8 = 43
75-43=32
I need help!
And if you can explain that would be good!
Answer:
meema, papa, and then auntie jo
Step-by-step explanation:
you need to find the slope of each of them and then determine which one is the fastest and which one is the slowest.
meema: 48-24/4-2 = 4/2 = 2
papa: 40-24/5-3 = 16/2 = 8
auntie jo: 45-18/5-2 = 27/3 = 9
im in algebra two so you can trust my answer. happy holidays and stay safe!
TR = 3x + 5, and RA = x + 17. Find the value of x.
Answer: x=6
Step-by-step explanation:
TR=RA since TR and RA are congruent
3x+5=x+17
3x+5-5=x+17-5
3x=x+12
3x-x=x-x+12
2x=12
2x/2=12/2
x=6
PLEASE HELP ill give brainlist to the first right answer
Answer:
how do i say this uh...
Step-by-step explanation:
i wanna say 3 up and 4 across, then alighn. then 2 up and 1 across there.
What is the common ratio of this sequence: 4, 20, 100...?
pls
Step-by-step explanation:
5 is the answer
..................
NEED HELP WILL GIVE YOU EXTRA POINTS BY BRAINLIEST
Answer:
(-2,4)
Step-by-step explanation:
When you reflect over y = x, the x and y change places. F' is at (4,-2) .
Answer: (-2, 4)
Step-by-step explanation:
Swap x and y coordinates since you're reflecting over y=x.
(4, -2)==>(-2, 4) ==> The slope between these two points should be -1(y=-x). That way, you know the graph is being reflected over y=x.
m=(y2-y1)/(x2-x1)
m=(4-(-2))/(-2-4)
m=(4+2)/(-6)
m=6/(-6)
m=-1 ==> These two points are confirmed to be reflected over the line y=x.
Old coordinates: (-2, 4)
Choose the missing step in the given solution to the inequality -2x - 14> -4 + 3x. (1 point)
-2x-14>-4+3x
-5x - 14 >-4
X<-2
O-5x< 10
O-5x>-18
O-5x > 18
O-5x > 10
10. (01.04 MC)
Answer:
-5x > 10
Step-by-step explanation:
1. We know that when -14 thrown to the right hand side, it will turn to +14
2. +14 -4 = +10
3. Left hand side will remain -5x
4. Hence, -5x > 10
5. and the equation divided by -5, the > sign will change to <
6. x< -2
7. Since you're finding the missing step so it's -5x > 10
Collin is collecting rocks for a science project. So far, he has collected 36 rocks, which is 90% of the total he needs. How many total rocks does Collin need for his science project?
Answer:
40 total rocks
Step-by-step explanation:
100 * 36 / 90 = 40
Answer:
he needs 4 more
Step-by-step explanation:
What is the answer to the problem: 1.234x139.893
and 674.983x278.475
Step-by-step explanation:
172.627962
187965.890925
Answer:
1.234 × 139.893 = 172.62796
674.983 × 278.475 = 187965.890925
Hope this helps! :)
Select the correct answer. A model rocket was launched from the top of a building. The rocket's approximate height can be modeled by the quadratic equation h = -4.9t2 + 53.9t + 127.4, where h is the rocket's height, in meters, after t seconds. When factored, this equation is h = -4.9(t - 13)(t + 2). What is a reasonable time for it to take the rocket to land on the ground? Answer A 11 seconds Answer B 13 seconds Answer C 2 seconds Answer D 15 seconds
Answer:
13 seconds.
Step-by-step explanation:
Given
[tex]h = -4.9(t - 13)(t + 2).[/tex]
Required
Determine a reasonable solution for t
To do this, we equate h to 0.
[tex]h = -4.9(t - 13)(t + 2).[/tex] becomes
[tex]0 = -4.9(t - 13)(t + 2).[/tex]
Divide through by -4.9
[tex]0 = (t - 13)(t + 2).[/tex]
Reorder the expression
[tex](t - 13)(t + 2) = 0.[/tex]
Split
[tex]t-13 = 0[/tex] or [tex]t + 2 = 0[/tex]
This gives:
[tex]t = 13[/tex] or [tex]t = -2[/tex]
But time can't be negative, So:
[tex]t = 13[/tex]
What is 4x3.14x9x9x9
Answer:
9156.24
Step-by-step explanation:
calculator
Answer:
its 9156.24
Step-by-step explanation:
what did he do wrong
Answer:
He did nothing wrong in this problem.
Step-by-step explanation:
determine the rate of change for the graph
Answer:
D) 1.5 centimeters per night
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (0, 30)
Point (20, 60)
Step 2: Find slope m
Substitute: [tex]m=\frac{60-30}{20-0}[/tex]Subtract: [tex]m=\frac{30}{20}[/tex]Simplify: [tex]m=\frac{3}{2}[/tex]Divide: [tex]m=1.5[/tex]At what point does the line y = -1/3x + 5 cross the x-axis? Write your answer as an ordered pair. (x, y)
PLEASEEEEEE HELPPPPPPPP I’ll MAKE YOU BRAINLY
When viewed from the side, the frame of a ball-return net
angles with the ground.
forms a pair of supplementary
Find m/BCE and mZECD.
Answer:
BCE= 115 ECD=65
Step-by-step explanation:
(5x+10)+(3x+2)=180
8x+12=180
8x=168
x=21
5(21)+10=115
3(21)+2=65
Answer:
<BCE=115°
<ECD=65°
And their sum is 180°
Step-by-step explanation:
< BCE + <ECD =180° ( Being sum of supplementary angle which is formed in the given diagram is 180°)
(5x + 10)° + (3x + 2)°= 180°
5x + 10 + 3x + 2 = 180°
5x + 3x + 10 +2 = 180°
8x + 12= 180°
8x = 180°-12°
8x = 168
x= 168/8
x=21°
Now,
<BCE = 5x+10
= 5*21+10
=105+10
=115
<ECD
= 3x+2
= 3*21+2
=65
1. A box of fruit has 12 plums and 15 bananas. The
cost of each plum is p and the cost of each banana is
25 cents. What expression gives the total cost for all
of the fruit in the box?
Answer:
12p x (15 x 25) I might not be correct :')
Answer:
12p+15x0.25
Step-by-step explanation:
Triangles ABC and DEF are similar.
Find the length of segment AC.
Answer:
4.6 I think
Step-by-step explanation:
Terrance's homework grade was a 72, his project grade was an 80 and his exam grade was an 82.
Homework is worth 10% of the final grade, the project was worth 50%, and the exam was worth 40%.
What was Terrance's final grade?
Answer:
80%
Step-by-step explanation:
home work = 10%
project grade = 50%
final exam = 40%
so
homework = 72
100=10
72=? cross multiply and get 7.2%
project grade = 80
100 = 50
80 = ? cross multiply and get 40%
final exam = 82
100 = 40
82 = ? cross multiply and get 32.8%
then add them altogether getting a total of 80%.
Answer in about 20 minutes please.
Grant went on an 8-week diet. If he lost at least 1.5 pounds each week, which inequality gives his total weight loss?
A. 8p (less than or equal to sign)-1.5
B. 8p (greater than or equal to sign)-1.5
C. p/8 (less than or equal to sign)-1.5
D. p/8 (greater than or equal to sign)-1.5
What is the exact value of tan(195°)?
Given:
The value is tan(195°).
To find:
The exact value of tan(195°).
Solution:
We have,
[tex]\tan (195^\circ)=\tan (180^\circ+15^\circ)[/tex]
[tex]\tan (195^\circ)=\tan (15^\circ)[/tex] [tex][\because \tan (180^\circ-\theta)=\tan \theta][/tex]
It can be written as
[tex]\tan (195^\circ)=\tan (45^\circ-30^\circ)[/tex]
[tex]\tan (195^\circ)=\dfrac{\tan (45^\circ)-\tan (30^\circ)}{1+\tan (45^\circ)\tan (30^\circ)}[/tex] [tex][\because \tan (A-B)=\dfrac{\tan A-\tan B}{1+\tan A\tan B}][/tex]
[tex]\tan (195^\circ)=\dfrac{1-\dfrac{1}{\sqrt{3}}}{1+(1)(\dfrac{1}{\sqrt{3}})}[/tex]
[tex]\tan (195^\circ)=\dfrac{\dfrac{\sqrt{3}-1}{\sqrt{3}}}{1+\dfrac{1}{\sqrt{3}}}[/tex]
[tex]\tan (195^\circ)=\dfrac{\dfrac{\sqrt{3}-1}{\sqrt{3}}}{\dfrac{\sqrt{3}+1}{\sqrt{3}}}[/tex]
[tex]\tan (195^\circ)=\dfrac{\sqrt{3}-1}{\sqrt{3}+1}[/tex]
Therefore, the exact value of tan(195°) is [tex]\dfrac{\sqrt{3}-1}{\sqrt{3}+1}[/tex].
Answer:
It's C
Step-by-step explanation:
If p and a vary inversely and p is 26 when q is 5, determine q when p is equal to 10
Answer: q = 13
because p and q are inverse
=> 26/10 = q/5
⇔ q = 26/10.5
⇔ q = 13
Step-by-step explanation:
solve the inequality |4x + 4| < 12
It’s 8x unless x has a known value
What is -2 (3x + 12y - 17x - 16y + 4) simplified?
Answer:
28x + 8y -8 is the answer for the question
Answer:
28x + 8y + 2
Step-by-step explanation:
hope it helps
Find the 101st term: 0, 0.1, 0.2, 0.3,
Answer:
the correct answer is 10.1 on the goggle forms it is 10
Step-by-step explanation:
0.1 multiplied by 101 is 10.1
Which systems of equations intersect at point A in this graph?
Y = 4 x - 9
y = - 3 x - 5
I hope this will help you
i looked this up and this is what i got
The answers are written but I am not sure how they got them. Can someone please explain it to me? Thank you! (Worth 50 points :))
Answer:
x = 2.4
I'm not sure how the answer is 4.5 but I'm pretty sure this is right unless I'm missing something
Step-by-step explanation:
So we need to find how much shorter is the short line compared to the longer one. Basically we need a scale factor, for this we can use the side lengths already given to us, 10 and 15. So u can choose either enlarge the short line or shorten the longer one.
If u want to enlarge the short line then do 15/10 which is 3/2 which u will then multiply the shorter line's equation with it, if u want to shorten the longer line then do 10/15 which is 2/3 and multiply the longer lines equation with it.
I'll be using the 3/2 one cause why not:
3/2(x + 6) = 4x + 3
3/2x + 18/2 = 4x + 3
multiply the entire equation with 2 to make 3/2 no longer a fraction
(3/2x + 18/2 = 4x + 3)2
6/2x + 18 = 8x + 6
3x + 18 = 8x + 6
subtract 18 from both sides
3x = 8x - 12
subtract 8x from both sides
-5x = - 12
divide -5 from both sides
x = 2.4
U can input x into the equation to check:
3/2(2.4 + 6) = 4(2.4) + 3
12.6 = 12.6, it's right
-3х - y + 4 = 28
2х - 3y+ 2 = 2
3х - 2y + 2 = 2
Solve each system by elimination
Answer:
x=-72/11 y=-48/11
Step-by-step explanation:
yw !