Answer:
1,172 minutes
Step-by-step explanation:
Answer:
35 minutes
Step-by-step explanation:
Let's say that the percentage of the battery's capacity that is charged increases by VVV percent each minute. Then, it increases by V\cdot TV⋅TV, dot, T percent in TTT minutes. In addition, we know that when the charging began, the battery was 232323 percent full.
The percentage of the battery's capacity that was charged at any given time is found by taking the percentage the battery was already charged when the charging began and adding to it the percentage that was additionally charged since then. We can express this with the equation C=23+V\cdot TC=23+V⋅TC, equals, 23, plus, V, dot, T, where:
CCC represents the percentage of the battery's capacity that is charged at a given time
VVV represents the charging rate (in percent per minute)
TTT represents the time (in minutes)
Hint #22 / 4
We know that after 303030 minutes (T=\blue{30})(T=30)left parenthesis, T, equals, start color #6495ed, 30, end color #6495ed, right parenthesis, the battery was 898989 percent full (C=\pink{89})(C=89)left parenthesis, C, equals, start color #ff00af, 89, end color #ff00af, right parenthesis. Let's plug these values into the equation to find the value of VVV.
\qquad \begin{aligned}\pink{89}&=23+V\cdot\blue{30}\\ 30V&=66\\ V&=2.2\end{aligned}
89
30V
V
=23+V⋅30
=66
=2.2
Therefore, the battery was charged at a rate of 2.22.22, point, 2 percent per minute.
Hint #33 / 4
To find how long it took the battery to be fully charged, we can plug C=100C=100C, equals, 100 into the equation and solve for TTT.
\qquad\begin{aligned}100&=23+2.2T\\ 2.2T&=77\\ T&=35\end{aligned}
100
2.2T
T
=23+2.2T
=77
=35
Hint #44 / 4
The battery was charged at a rate of 2.22.22, point, 2 percent per minute.
It took the battery 353535 minutes to be fully charged.
HELP
The cost of an iPhone X is $1,149.00. The cost of an iPhone 4 is $199.00. How many times greater is the
cost of an iPhone X than an iPhone 4? Round your answer to the nearest tenth.
show your work please
Answer:
The answer you are looking for is 5.8 times greater
Answer:
5.8 or 6
Step-by-step explanation:
round 1149 to 1150
round 199 to 200
your answer would be 5.75 round that to 6
6 +(-1)=math please help
Answer:
5
Step-by-step explanation:
[tex]Steps\\\\6+\left(-1\right)\\\\\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a\\=6-1\\\\\mathrm{Subtract\:the\:numbers:}\:6-1=5\\=5[/tex]
Solve for x.
50x + 54 = 34x + 46
Answer:
x = -1/2
Step-by-step explanation:
50x + 54 = 34x + 46
Subtract 34x from each side
50x-34x + 54 = 34x-34x + 46
16x +54 = 46
Subtract 54 from each side
16x+54-54 = 46-54
16x = -8
Divide by 16
16x/16 = -8/16
x = -1/2
Answer:
[tex]x=-\frac{1}{2}[/tex]
Step-by-step explanation:
So we are given an equation and we are asked to solve for x.
50x + 54 = 34x + 46
Subtract 54 from both sides.
50x = 34x - 8
Subtract 34x from both sides.
16x = -8
Divide both sides by 16.
[tex]x=-\frac{1}{2}[/tex]
So now we have solved for x. We have found that [tex]x=-\frac{1}{2}[/tex].
I hope you find my answer and explanation to be helpful. Happy studying.
I need help graphing
Lmk if this helped if not im sorry
Which of the following is equal to -24? Choose all that apply
what is the slope of the line 3y-x=-6
Choices:
(x + 0, y -12)
(x + 8, y - 6)
(x + 1, y - 13)
(x - 7, y - 3)
(x + 10, y + 0)
Answer:
(x + 10, y + 0)
Step-by-step explanation:
in the graph, all points of the triangle (a, b, and c) are translated 10 units to the right. when things are translated to the right, the x is the number being affected.
To measure a stone face carved on the side of a mountain, two sightings 700 feet from the base of the mountain are taken. If the angle of elevation to the bottom of the face is 35 and the angle of elevation to the top is 38 , what is the height of the stone face?
Answer:
75feet
Step-by-step explanation:
To measure a stone face carved on the side of a mountain, two sightings 700 feet from the base of the mountain are taken. If the angle of elevation to the bottom of the face is 35 and the angle of elevation to the top is 38 , what is the height of the stone face?
Iet us say we have two right triangles. With a base of 700. The first has angle of 35o and the other has an angle of 38degree
Then we need the Height
From trigonometry
Tan = opposite/adjacent.
In this case the adjacent is 800
Tan 35 = 0.7002
Tan 38 = 0.781
Bruce owns a business that produces widgets. He must bring in more in revenue than he pays out in costs in order to make a profit. • It costs $10 in labor and materials to make each of his widgets. • His rent each month for his factory is $4,000. He sells each widget for $25. What is the smallest number of widgets Bruce needs to sell each month to make a profit?
Answer:
Bruce needs to sell 267 widgets each month to make a profit.
Step-by-step explanation:
From the information given, you can write that the cost of the monthly rent plus the cost in labor and materials to make each widget for the number of widgets is equal to the amount of sales:
10x +4000 = 25x
Now, you can solve for x:
4000 =25x-10x
4000=15x
x= 266.67→267
According to this, the answer is that Bruce needs to sell 267 widgets each month to make a profit.
13. A discount retail store gives a 8% discount
to senior citizens. If a customer who is a senior
citizen wants to purchase an item that costs
$34.50, what is the final cost after the discount
is applied?
Answer:
the final cost is $31.74
Can zero be a solution of a quadratic equation? Explain
- tysm pooo
Answer:
If the discriminant is less than 0, the equation has no real solution. Looking at the graph of a quadratic equation, if the parabola does not cross or intersect the x-axis, then the equation has no real solution. And no real solution does not mean that there is no solution, but that the solutions are not real numbers. The Zero-Product Property states that for all real numbers a and b, if [tex]ab=0[/tex], then a=0 or b=0.
We can The Zero-Product Property to solve a quadratic equation when we can factor the standard form of the equation. Because when we apply The Zero-Product Property to a factored quadratic equation we can find the x-intercepts of the graph of the related functions. Respectively we can find the solutions to the quadratic equation.
Subtract 1 + ( - 1 ) - ( - 3 ). Hint: Add the first two numbers, then subtract the -3 from the result of that addition.
3
5
-5
-3
Answer:
3
Step-by-step explanation:
1 + (-1) - (-3)
when adding a negative number to a positive number remove the addition sign.
1 - 1 - (-3)
0 - (-3) Make addition sign
0 + 3 = 3
The temperature of a heated swimming pool varies from 78 degrees F by no more than 2 degrees F" Name the least and greatest possible temperatures of the pool. Then write a compound inequality to represent all of the pool's possible temperatures.
Answer:
1 degrees and 60 degrees
Step-by-step explanation:
HELP!!!!!!!!!!!!!!!!!!!!!!!
Answer:
79
Step-by-step explanation:
m<1 = 90 -38 = 52
m<3 = 90 - 52 = 38\
m<2 = 180-38-63 = 79
Answer:
Step-by-step explanation:
<1 + <3 = 90 Parallel lines produce interior angles that add to to 90
<1 + 38 = 90 Substitution
<1 = 90 - 38 52
<3 = 90 - 52
<3 = 38
38 + 63 + <2 = 180 Sum of angles in a triangle always = 180
101 + <2 = 180
<2 = 79
The graph shows a system consisting of a linear equation and a quadratic equation. What is the solution to the system?
PLEASSEEE HELP MEEEEE
Answer:
47°
Step-by-step explanation:
a staight angle equals 180 degrees
180=6x+29+3x+124
x=3
18+29=boc
boc=47
btw, if u know how to do my question could u plz help
thx
Answer: angle BOC is 47°
Step-by-step explanation:
Supplementary angles add to 180°
6x + 29 + 3x + 124 = 180
6x + 3x + 29 + 124 = 180
9x + 153 = 180
9x = 180 -153
9x = 27
x = 3
Substitute 3 for x in ∠BOC = 6x +29
6(3) + 29 = ∠BOC
18 + 29
47° =m∠BOC
Which is the larger value below?
A) 9.54 x 10-3
B) 6.54 x 10-4
Answer:
A
Step-by-step explanation:
a
10-3=7 , so,
9.54 * 7 = 92.4
b
10-4=6
6.54*10 = 61.4
Answer:
A
Step-by-step explanation:
because you need to do Multiplication after subtraction
Ben is starting a business to wash his neighbors cars. He will earn $9.50 per car he washes, plus an additional $50 his mom gave him as a bonus. If 'y' represents total profit, and 'x' represents the cars he washes, what equation can model Ben's profit per car he washes?
A. y = 50x + 9.50
B. y = 9.50x + 50
C. y = 59.50
D. y=9.50% - 50
Answer:
its b
Step-by-step explanation:
y being the total equals 9.50 times x beacause is how many cars he washed and the plus 50 is the money his mom gave him
Answer:
b
Step-by-step explanation:
Twelve less than three times an number is -15. What is the equation ? What is the number ?
Answer:
3x - 12 = -15
x = -1
Step-by-step explanation:
3x - 12 = -15
3x = -3
x = -1
what is 1 and 7/8 + 1/9?
A. 0
B. 1
C. 2
D. 2 and 1/2.
Answer:
D. 2 and 1/2
Hope it helps! Please mark Brainliest!
Answer:
1 71/72
Step-by-step explanation:
1 7/8 + 1/9 = 1 + 7/8 * 9/9 + 1/9 * 8/8 = 1 + 63/72 + 8/72 = 1 + 71/72 = 1 71/72
1. Write a paragraph proof for the following conjecture.
Given: QS bisects ∠PQR.
m∠PQS = 45°
.
Prove: []PQR is a right triangle.
10 points, help asap
QS bisects the ^PQR^ :
So -----¢ PQS = SQR = 45°
_________________________________
PQR = PQS + SQR = 45°+ 45° = 90 °
Q^ = 90° ----¢ So the PQR triangle is a
right triangle.
Translate “58 is less than a number less than 126” into math symbols
Answer:
58 ≤ x ≤ 126
Step-by-step explanation:
hopefully i understood that
Write the equation of the piecewise function. Algebra 2
Answer:
C. [tex]y=\begin{cases}2-x&x<0\\5-3x&x\ge 0\end{cases}[/tex]
D. [tex]y=\begin{cases}-2&x<-3\\4&x>-3\end{cases}[/tex]
Step-by-step explanation:
C. The line to the left of x=0 has a slope of -1 and a y-intercept of 2. That portion of the function does not include x=0. The line to the right of x=0 has a slope of -3 and a y-intercept of 5. That portion of the function includes the case x=0.
[tex]\boxed{y=\begin{cases}2-x&x<0\\5-3x&x\ge 0\end{cases}}[/tex]
__
D. The line to the left of x=-3 is y=-2; the line to the right of there is y=4. The function is not defined at x=-3.
[tex]\boxed{y=\begin{cases}-2&x<-3\\4&x>-3\end{cases}}[/tex]
how many centimeters are there in 5 feet
Answer:
152.4 centimeters
Step-by-step explanation:
If g(x) = 2x2 - 4, find g(-2)
Answer:
2(-2)2=0
Step-by-step explanation:
if you meant to put it a different way tell me and i can do the correct one, just because this one seems weird lol
The value of the function when x = -2 then g(-2) = 4.
What is a function?A function is defined as a relation between the set of inputs having exactly one output each. The Numbers constants, variables, operations, functions, brackets, punctuation, and grouping can be represented by mathematical symbol.
WE have been given an function as g(x) = 2x² - 4
Now plug the value x = -2 in the given function;
g(-2) = 2(-2)² - 4
g(-2) = 2 x 4 - 4
g(-2) = 8 - 4
g(-2) = 4
Therefore, the value of the function when x = -2 then g(-2) = 4.
Learn more about function here:
https://brainly.com/question/2253924
#SPJ2
Write the equation of the line in slope-intercept form that has : slope: 3 and point : (1,0)
Answer: y=3x-3
Step-by-step explanation: First plot your point then use the slope to plot another one and get a line. then use slope-intercept formula y=mx+b. M= slope which is 3 and B= the y-intercept.
Answer:
y=3x-3
Step-by-step explanation:
Solve for the letter A. ab+d=c
Answer:
a=c/b-d/b
Step-by-step explanation:
Answer:
a=c-d/b
Step-by-step explanation:
We first need to isolate the variable "a" by doing the opposite operation.
1. subtract "d" on both sides
After step 1- ab=c-d
2. divide both sides by "b" because that is the only way to isolate a permanently
After step 2- a=c-d/b
Find the distance between the two points rounding to the nearest tenth (if necessary).
(-8,1) and (-4,-5)
Answer the following question from the picture:
Answer:
x°= 67°. it's from 180-130 then it's added with 63 then again substrated from 180.
Y°= 63°. y° same as 63° below.
z°= 32°. 85 is added with y° which is 148 and it's substrate from 180 which is 32°.
YYYYYYYYYYYYYYYYYYYYYYYYYYYY HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
6.723=6.7, 6.538=6.5, 6.647=6.6, 6.49=6.5, 6.687=6.7, 6.56=6.6
Step-by-step explanation:
This should be correct
Answer:
Step-by-step explanation:
Here's the general rule for rounding: If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up. Example: 38 rounded to the nearest ten is 40. If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down.