Answer:46.6%
Step-by-step explanation: multiply 42 by 100 than divide that by 90
why do i suck at math
the world may never know
Answer:
Yeah, what the dude above me said.
Step-by-step explanation:
F(x) =3x-10 when x=3
when x = 3,
y = -1
F(x) = 3(3) - 10 = 9 - 10 = -1
Solve the system using the substitution method
x = -6y - 4
6x - 12y = 24
Answer:
x = 2, y = -1
Step-by-step explanation:
We have a solution system, x = -6y - 4 and 6x - 12y = 24.
Now, since are not only asked to use the substitution method, but at the same time know the value of x, let's plug the first system into the second.
x = -6y - 4
6(-6y - 4) - 12y = 24
-36y - 24 - 12y = 24
-48y - 24 = 24
Add 24 to both sides :
-48y = 48
Divide -48 by both sides :
y = -1
Now that we have y, we can replace it into the second system again to get x.
6x - 12(-1) = 24
6x + 12 = 24
Solve for x by first getting rid of 12 from both sides :
6x = 12
Divide 6 by both sides :
x = 2
Therefore, x = 2 and y = -1
1. Each spring, Genevieve helps her mom plant flowers. There are 24 rows of
flowers and she plants 18 flowers in each row. How many flowers does Genevieve
plant?
Answer:
Genevieve plants a total of 432 flowers.
Step-by-step explanation:
18 flowers go in every row so you have to multiply the number of rows (24) by the number of flowers in each row (18) to get the total of 432 flowers.
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
The answer is 60
Step-by-step explanation:
How to find what percent of X is Y. Use the percentage formula: Y/X = P% Example: What percent of 60 is 12? Important! The result will always be in decimal form, not percentage form.
(i know this isn’t the clearest formula but its what i used)
Answer:
60
Step-by-step explanation:
To make this problem a little easier, think of 80% as 4/5.
(4/5 = 48/x) ~the unknown is represented by x
After cross multiplying, or "the butterfly method" you would get:
4x = 5(48)
4x = 240
240/4 = 60!
how do you write the point-slope form of the equation that has a slope of -5/6 point (8,-4)
Answer:
Step-by-step explanation:
the equation of a line in
point-slope form
is.
xy − y1 = m(x−x1)
where m is the slope and (x1 - y1 ) a point on the line
to calculate m use the
gradient formula
m= y2−y1
x2−x1
let ( x1 , y1) =( 8, 5) and ( x2 ,y2 ) = (0, −4)
⇒ m= -4-5/0-8= -9/-8= 9/8
using m= 9/8 and (x1- y1) = (8,5) then
y-5= 9/8(x-8)
Jerry has two same size circles divided into same number of equal parts. One circle has has 3/4 of the parts shaded and the other has 2/3 of the parts shaded. His sister says the least number of pieces could be divided into 7,
Answer:
Step-by-step explanation:
What is the distance between (4, 6) and (5, 0)
Answer:
6 units
Step-by-step explanation:
Given data
x1=4
y1=6
x2=5
y2=0
substitute in the formula for the distance between two points
d=√((x_2-x_1)²+(y_2-y_1)²)
d=√((5-4)²+(0-6)²)
d=√((1)²+(6)²)
d=√36)
d=6
Hence the distance is 6 units
Write the rate as a fraction in simplest form: 492 miles in 8 hours.
Nick can read 3 pages of his book in 1 minute. At this rate how many pages can he read in 30 minutes?
Answer:
90
Step-by-step explanation:
3/1=3
30x3=90
Find the lcd between 1/6 and 2/9. Show your work.
Function C gives the cost, in dollars, of buying n apples. What does this equation represent in this situation?
C(5)=4.50
help pls
Answer:
The cost of 5 apples.
Step-by-step explanation:
Typically the equation would be written as C(n) = 4.50
Since 5 is where 'n' should be, then that means the number of apples in the equation is five.
C(5) = 4.50
Means, that 5 apples cost $4.50
Asha is hungry. She eats her best friend, Skye. She also eats 10 other people. 10% of them are female. How many males did Asha eat?
Answer:
9.9, if rounding 10
Step-by-step explanation:
1 (best friend) + 10 (other people)=11 (total people)
10% are female
90% are male
.9*11=9.9
5) The diagram below shows a ramp connecting the ground
to a loading platform 4.5 feet above the ground. The ramp
measures 11.75 feet from the ground to the loading
platform. What is the angle of elevation formed by the
ramp and the ground to the nearest degree?
Step-by-step explanation:
///////hope it helps:)
The trigonometric function gives the ratio of different sides of a right-angle triangle. The Sine or Sinθ in a right angle triangle is the ratio of its perpendicular to its Hypotenuse.
What is Sine (Sinθ)?The Sine or Sinθ in a right angle triangle is the ratio of its perpendicular to its Hypotenuse. it is given as,
Sin(θ) = Perpendicular/Hypotenuse
where,
θ is the angle,
Perpendicular is the side of the triangle opposite to the angle θ,
The hypotenuse is the longest side of the triangle.
The angle of elevation is equal to,
The angle of elevation = Sin⁻¹ (4.5/11.75)
= 22.5183° ≈ 23°
Hence, the angle of elevation formed by the ramp by the ground to the nearest degree is 23°.
Learn more about Sine:
https://brainly.com/question/21286835
#SPJ2
Round to the nearest hundred 428÷31 round answer to the nearest thousandth
Answer:
13.81
Step-by-step explanation:
Answer:
The Correct Answer Is 13.806
Step-by-step explanation:
428 divided by 31 is equal to 13806...46363284632463247864782647832648237...367842634862349236498324698324...yeah i dont know, but in thousands that is 13.806.
Therefore your answer is 13.806.
Hope it Helps!
Electric circuit consisting of 20 lights, 25% of the lights did not work. How many lights did not work?
Answer:
5 Lights
Step-by-step explanation:
L = .25 * 20 = 5 Lights.
Answer:
20 X 1/4 (25%)=5
5 lights didn't work
Step-by-step explanation:
Question Help
Suppose you deposited $300 in a savings account 2 years ago. The simple interest rate is 2.9%
The interest that you eamed in those 2 years is $17.40. Which of the following is/are true?
= 2.996
r=17-40 D=300
Answer:
account 2 years ago. The simple interest rate is 2.9% The interest that you eamed in those 2 years is $17.40. Which of the following is/are true? = 2.996 r=17-40 D= 300.
The mathematical model C = 800x + 100,000 represents the cost in dollars a company has in manufacturing x items during a month. How many items were produced if costs reached $580,000?
O A 579,200 items
OB 600 items
OC. 850 items
Can someone please help me
Answer:
A. 1200
Step-by-step explanation:
Speed in meter per minute
= (216*1000)/(3*60)
= 216000/180
= 1200
Answer:
A. 1200
Step-by-step explanation:
Distance travelled (d)
= 216 km
= 216000 m
time taken (t)
= 3 hours
= 3 * 60
= 180 min
Speed (s)
= d / t
= 216000/180
= 1200 m / min
The speed of the car is 1200 metres per minute.
XYZ are referred to as the area number. The number is associated with where you registered for your social security card. X is a number 1 – 7. Y and Z can be any number 0 – 9. How many area code numbers are possible?
9514 1404 393
Answer:
700
Step-by-step explanation:
The numbers can range from 100 to 799. There are 700 possible numbers.
WILL MARK BRAINLYIST
Answer:
C
Step-by-step explanation:
Hope it helps!
Find the unit rate
$87.75 in 6.75 minutes
Answer:
The ubite rate is 13
Step-by-step explanation:
help me, please!!!!!!!
9514 1404 393
Answer:
2
Step-by-step explanation:
Alex has 10 money units. Annie has 5 money units. The ratio of amounts is ...
Alex : Annie = 10 : 5 = 2 : 1
Alex has 2 times as much money as Annie.
Classify the equation as a conditional equation, an identity, or a contradiction. 4x+5x−15=9x−10−5
Answer:
Identity
Step-by-step explanation:
Conditional equation, an identity, or a contradiction.
Conditional equation: Two sides are equal for some value of x.
Identity: Two sides are equal for every value of x.
Contradiction: We have 0x = number that is not 0.
4x+5x−15=9x−10−5
Lets solve
[tex]4x + 5x - 15 = 9x - 10 - 5[/tex]
[tex]9x - 15 = 9x - 15[/tex]
Equal on both sides, so identity.
Answer:
conditional equation
Step-by-step explanation:
Collecting terms on both sides, we get
−4+3x−5x−2x−4=−1−10+x=x−11
Subtracting x and adding 4 to both sides of the equation, we get
−3x=−7
This can be solved by dividing by −3 on both sides of the equation, which gives a unique solution of 73. So, this is a conditional equation.
Solve for a.
12 =-2a + 6
Answer:
a=-3
Step-by-step explanation:
First, subtract 6 from both sides
6=-2a
divide -2 from both sides
-3=a
How much thyme leaves would you need to make 24 servings?
A) 1/12 tsp
B) 3/12 tsp
C) 3/4 tsp
D) 1/4 tsp
Answer:
c
...................
Answer:
3/4 tsp
Step-by-step explanation:
To find out how much thyme you would need, set up a proportion of thyme to servings and solve: 1/4 tsp/8 servings = x tsp/24 servings
What is the slope of a line with points (3, 12)(7, 16)?
2
-2
-1
1
Which graph is the solution to the following inequality
Step-by-step explanation:
-8x+5 > 21
Minus 5 from both sides
-8x > 16
Then divide 8 from both sides (also I am pretty sure the sign would change because you are dividing by a negative number)
x < -2
So the answer is x is less than or equal to -2
or C
I hope this helps!
Stuck on this one question qwq
*12 points*
I'm 99% sure your answer is B!
I hope this answer helped! please mark brainliest and vote 5 stars >:)
Rotate the figure 90 degrees about vertex A.
Answer:
A' is (1,1) B is (4,1) C is (1,-1)
Step-by-step explanation:
Since we rotating the figure about point a, we know a is the center of the rotation meaning no matter how far we rotate point a new image will stay on where point a pre image was which in this case is (1,1). Also since we know the rules of rotating a angle 90 degrees About the origin we are going to translate the figure to have the one point we are rotating about at the orgin. Since translations are a rigid transformations, the figure will stay the same A. Move the figure 1 to the left and 1 down so A becomes 0,0 B becomes 0,3 and C becomes 2,0. Then apply the rules of 90 degree clockwise rotation rules. (x,y) goes to (y,-x) . A stays (0,0) B becomes (3,0) and C becomes (0,-2). Then translate the figure 1 to the right and 1 down since we rotating about point a which is 1,1 and it at 0,0 rn. A' is 1,1. B' becomes (4,1). C' becomes (1,-1).