Answer:
1.75 + 0.3x = 7.45; 19 minutes
Step-by-step explanation:
The cost of the phone call is found by 1.75 + 0.30 multiplied by the number of minutes the calls lasts. The cost of the call is 7.45 so 1.75 + 0.3x = 7.45. Begin by subtracting 1.75 from each side of the equation. That leaves 0.3x = 5.7. Then divide both sides by 0.3. This gives x = 19.
(6.7 x 10 5) – (2.3 x 102) =
-Answer:-10
Step-by-step explanation:
Answer:
6.7 x 105 = 703.5
2.3 x 102 = 234.6
703.5 - 234.6 = 468.9
Step-by-step explanation:
A triangle has vertices at (3, 3), (6, 15), and (3, -3). What are the coordinates of the orthocenter?
A. (-69, 15)
B. (3.5, 3)
C. (4.2)
D. (9, 0)
Answer:
The answer would be A) (-69, 15)
Solution:
Finding 1st and 2nd
m = (y2 - y1)/(x2 - x1)
m = (15 - 3 )/(6 - 3)
m = 12/3
y = 4x + b
3 = 3(3)+b
3=9+b
-9 -9
-6=b
Finding 3rd
repeat the above process for 1 and 2, so now use 2 and 3 in the equation.
m = -9/3
m=-3
y=-3x+b
15=-3(6)+b
b=-3
Step 2
140 - (16 7/8) x 7 =
_______________
Thank you!
Answer:
−49 / 8
decimal form- -6.125
Step-by-step explanation:
140− 167 / 8 (7)
=
140− 1169 / 8
=
−49 / 8
what's better getting 14 out of 17 or 31 out of 39
Answer:
14 out of 17 is a 82% and 31 out of 39 is a 79%.
14 out of 17 is better
Answer:
it's better to get 14 out of 17
Step-by-step explanation:
14 out of 17 is 82% while 31 out of 39 is 79%
Increase by the given percentage
272 by 249%
Which conic section is represented by the following equation? –5x2 10xy – 5y2 2x – y 4 = 0 circle ellipse parabola hyperbola.
A conic section can be an ellipse, a parabola or a hyperbola.
The equation of the conic section represents a hyperbola
How to determine the conic sectionThe equation of the conic section is given as:
[tex]\frac{-5x^2}{10} - \frac{5y^2}{2} = 1[/tex]
The equation of a hyperbola is represented as:
[tex]\frac{x^2}{a^2} - \frac{y^2}{b^2} = 1[/tex]
By comparing the given equation of the conic section and the general equation of a conic section, we can see that both equations are similar in some aspect
Hence, the equation of the conic section represents a hyperbola
Read more about conic section at:
https://brainly.com/question/8320698
Answer:
it is C on edg2020
C.) parabola
Step-by-step explanation:
In the Long Beach Air Race, six planes are entered and there are no ties, in how many ways can the first three finishers come in?
Answer:
swim bike and run.
Step-by-step explanation:
Evelyn drove 248 miles in eight hours if she continues at the same rate how far would she travel in 6hours
Answer:
186miles
Step-by-step explanation:
248 divided by the 8 hours she traveled means she was going 31 miles per hour. and 31 mph for 6 hours is 186 miles.
What is the value of p?
140°
90°
p
Answer:
230 or 50
Step-by-step explanation:
but i think it os 230
Answer:
50
Step-by-step explanation:
Jada has 12 pencils and 24 erasers. She wants to create identical groups. What is the
greatest number of groups that Jada can make?
Answer:
12
Step-by-step explanation:
Find the following measures of central tendency for the given set of data.
{785, 985, 456, 351, 153, 246, 794, 159}
a. Mean =
b. Median =
c. Mode =
What is the equation in point-slope form of a line that passes through the points (−4, −1) and (5, 7) ?
y+1=8/9(x+4)
y+4=9/8(x+1)
y+1=8/7(x+4)
y−1=8/9(x−4)
Answer:
y+1=8/9(x+4)
I took the quiz and it was correct and i go to k-12
The time to assemble a television at a factory is 2.5 hours. A stereo only requires 1.5 hours. The factory workers can supply at least 580 and at most 750 hours of assembly time each week. The factory is producing 3 times as many televisions as stereos. What is the inequality?
A) 580=<4x=<750
B) 580<4<750
C)580=<9=<750
D)580<4<750
Answer: a
Step-by-step explanation:
15 - 12 ÷ 4 x 3
To simplify this problem, you need to follow _______ of ________.
First you need to ________.
Then you need to _______.
Lastly you would ... To get the answer of __.
Answer: Look below.
Step-by-step explanation: To simplify this problem, you need to follow order of operations.
First you need to multiply (or divide, doesn't matter.)
Then you need to divide.
Lastly, you would subtract to get the answer of 6.
Use PEMDAS for order of operations.
Step-by-step explanation:
order of operations devide 12by 4 to get 3 and multiple the answer by 3 to9 and substract it from 15 to get 6
if you have 3 gallons of 95% alcohol, how much pure water should be added to be able to produce 70% alcohol?
Answer: Approximately 1.0714 gallons
===========================================
Work Shown:
x = amount of pure water
3 gallons of 95% alcohol means you have 3*0.95 = 2.85 gallons of pure alcohol.
If we add on x gallons of pure water, we'll have 3+x gallons of solution
So we'll have 2.85/(3+x) representing the ratio of the amount of pure alcohol to total solution. Set this equal to 0.70 and solve for x
2.85/(3+x) = 0.70
2.85 = 0.70(3+x)
2.85 = 0.70(3)+0.70(x)
2.85 = 2.10+0.70x
2.85-2.10 = 0.70x
0.75 = 0.70x
0.70x = 0.75
x = 0.75/0.70
x = 1.07142857142858 which is approximate
x = 1.0714
So if you add about 1.0714 gallons of pure water, you'll go from 95% alcohol to 70% alcohol.
A pet store has 9 dogs, 6 cats, 8 gerbils, and 7 parrots. A pet is chosen at random. What is the probability of choosing a cat or dog?
A) 22/30 = 11/15
B) 14/30 = 7/15
C) 17/20
D) 1/2
Answer: D I believe since 15 is 50% of 30
Step-by-step explanation: Sorry if I'm wrong, If I'm right can you mark brainliest :)
Answer: 1/2
Step-by-step explanation: We all know that their 30 pets altogether and if you add cat and dogs together you get 15 and 15/30 is 1/2. So It is D)1/2
(62 - 3) X (2 + 8) =
Answer:
590
Step-by-step explanation:
(62-3)=59
(2+8)=10
59x10
=590
Answer:
590
Step-by-step explanation:
Solve what's in parentheses:
62 - 3 = 592 + 8 = 10Multiply:
59 × 10 = 590I hope this helps!
7) A deck of cards has 4 yellow, 5 orange, and 5 blue cards. You pick 4 cards from the deck. Cards are
A not returned to the deck after they are picked.
P(four orange cards in a row)
Answer:
Please Brainliest
2/13
Step-by-step explanation:
So firstly, know that there are 13 cards in the deck (3 + 6 + 4).
Therefore, the probability of drawing a green is 4/13.
After you draw the green card, there will be 12 cards left. Therefore, the probability of drawing a purple card next is 6/12.
To find compound probability, multiply the probabilities of the two separate events happening together:
4/13 * 6/12
= 2/13
Which values of x are point(s) of discontinuity? x = –6 x = –2 x = 0 x = 2 x = 4.
Discontinuity is the value of x or y for which the function is not defined. The function is discontinued at points x=0 and x=4.
What is discontinuity?The discontinuity is the value of x or y for which the function is not defined. It is represented by a blank dot at the point at which it is not defined.
The discontinuity of the function is represented by a blank dot, and it is the point where the function is not defined.
If we look in the graph, we will find that there are three blank dots, which are at:
x = -2
x = 0
x = 4
Now, since discontinuity means that the function is not defined but as we can see that the value of the function is defined at x = -2, therefore, we are left with only two options which are x=0 and x=4.
Hence, the function is discontinued at points x=0 and x=4.
Learn more about Discontinuity:
https://brainly.com/question/2750981
Answer:
1. b,c,e
2. c
Step-by-step explanation:
solve for m
75°
150°
105°
90°
Answer:
first of all we don't know where m is so I will give you all the degrees for all the angles so angle DAB is equals to 75 degrees angle ABC is equals to 105 degrees angle ADC is equals to 105 degrees
The measure of the angles ∠A will be 105°. Then the correct option is B.
What is a trapezoid?It is a polygon that has four sides. The sum of the internal angle is 360 degrees. In a trapezoid, one pair of opposite sides are parallel.
In the isosceles trapezoid, the sum of opposite angles will be equal to 180°. Then the equations are given as,
∠A + ∠C = 180°
Then the measure of the angle ∠A is calculated as,
∠A + 75° = 180°
∠A = 105°
The measure of the angles ∠A will be 105°. Then the correct option is B.
More about the trapezoid link is given below.
brainly.com/question/22607187
#SPJ2
3. $37 dinner; 15% tip
Answer:
$5.55 tip
Step-by-step explanation:
The two-way table below describes the car rental habits of sales representatives attending a conference. Sales Representatives’ Car Rentals, by Length of Stay Staying Fewer than Two Nights Staying at Least Two Nights Rented a Car 9 11 Did Not Rent a Car 21 14 What percentage of representatives staying at least two nights rented a car? 20% 44% 55% 79%.
The percentage of representatives staying at least two nights renting a car is 44%. Then the correct option is B.
What is the percentage?The amount of something is expressed as if it is a part of the total which is a hundred. The ratio can be expressed as a fraction of 100. The word percent means per 100. It is represented by the symbol ‘%’.
The two-way table below describes the car rental habits of sales representatives attending a conference.
The percentage of representatives staying at least two nights rented a car will be
[tex]\rm Percentage = \dfrac{11}{25}*100 \\\\Percentage =0.44*100\\\\Percentage = 44 \%[/tex]
The percentage of representatives staying at least two nights renting a car is 44%. Then the correct option is B.
More about the percentage link is given below.
https://brainly.com/question/8011401
IF YOU ANSWER FIRST YOU WILL GET BRAINLIEST ANSWER THIS CORRECTLY
Answer:
the last one
Step-by-step explanation:
D.
The last answer is correct
The greatest advantage of SI is that it has only one unit for each quantity (type of measurement). This means that it is never necessary to convert from one unit to another (within the system) and there are no conversion factors for students to memorize.
HOPE THIS HELPED
AND IF IT DOES PLEASE GIVE BRAINLIST
Linda drives 28 miles in 48 minutes, Keeping the same rate, how miles
would she drive in 24 minutes? I
Answer: 14 miles om 48 min.
Graph the equation y = 4x + 6.
All three points displayed are on the line. Find an equation relating x and y.
Answer:
y = 2x - 3
Step-by-step explanation:
The graph is a straight line, thus linear with equation
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (3, 3) and (x₂, y₂ ) = (6, 9) ← 2 points on the line
m = [tex]\frac{9-3}{6-3}[/tex] = [tex]\frac{6}{3}[/tex] = 2 , thus
y = 2x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (3, 3 ), then
3 = 6 + c ⇒ c = 3 - 6 = - 3
y = 2x - 3 ← equation relating x and y
The equation whigh relates x and y points on the graph can be expressed in slope-intercept form as y = 2x - 3
The general form of a slope - intercept equation is :
y = bx + cb = slope ; c = interceptSlope, b = Rise / Run
Rise = 9 - 3 = 6 Run = 6 - 3 = 3Slope, b = 6/3 = 2
Taking a pair of point on the graph :
(3, 3)
3 = 2(3) + c
3 = 6 + c
3 - 6 = c
c = - 3
Therefore equation can be expressed thus :
y = 2x - 3Learn more : https://brainly.com/question/18618957
Jane took a train traveling at an average speed of 60 mph from Boston, MA to Washington, D.C. The trip took 8 hours. On her way back to Boston, Jane decides to take an express train that travels at an average speed of 75 mph. How long will the trip home take?
Answer:
6.4 minutes
Step-by-step explanation:
The question gave us the following details:
Average speed = 60mph
Time spent on trip = 8 hours
Average speed of express train on way back = 75mph
T = distance/speed
D = distance
V = speed
T = d/v
d = v(t)
d = 60 x 8
= 480
Such that
480/75
= 6.4 hours.
That is 6 hours 40 minutes is the length of time it would take on the trip home.
Thank you!
Answer:
6.4 hours / 6 hours 40 minutes
Step-by-step explanation:
Do you do RSM? 6th Grade Advanced?
The previous balance in your check register is $234. 67. You make a deposit of $150. 0. You write a check for $63. 23. What is your new balance?
Answer:
321.44
Step-by-step explanation:
(234.67+150)-63.23
Westwood Grocery Store needs a new freezer for popsicles and ice cream bars. The owner finds a freezer that is 4 feet long, 2 feet wide, and 3 feet tall. What is the volume of the freezer?
Answer:
24 centimeter square
Step-by-step explanation:
Volume = L x W x H
= 4 x 2 x 3
= 24 centimeter square
Bob made 25 free throws out of 40 free throws he attempted every 5 minutes. How many free throw did bob make in 12 minutes
Answer: 300
Step-by-step explanation: 25 times 12 = 300. 20 times 12 = 240. 5 times 12 = 60. 60 + 240 = 300
Answer:
300
Step-by-step explanation:
25 times 12 = 300. 20 times 12 = 240. 5 times 12 = 60. 60 + 240 = 300