solve 15-2x=3x
the solution is x=
Answer:
x=3
Step-by-step explanation:
15-2x=3x
solve for x:
15=5x
divided by 5:
3=x
Answer:
x = 3
Step-by-step explanation:
15 -2x = 3x {Add 2x to both sides}
15 = 3x + 2x
15 = 5x
15/5 = x {divide both sides by 5}
x = 3
A cookie recipe calls for 4.5 cups of flour, makes 3 dozen cookies. How much flour is needed to make 6 dozen cookies?
Group of answer choices
Answer:
9 cups
Step-by-step explanation:
3 dozen of cookies : 4,5 cups
6 dozen : more
6
--- × 4,5 = 9 cups
3
A sales associate at a computer electronics store
is given a choice of two different salary plans.
One plan pays a weekly salary of $180 with a
commission of $30 for every computer sold. The
other plan pays no salary but offers $75
commission on each computer sold. How many
computers must the sales associate sale to make
the same amount of money under both plans?
Answer:
the sales associate has to sell 4 computers to make the same amount of money under both plans
Step-by-step explanation:
y=money
x=computers sold
Plan 1: y=30x+180
Plan 2: y=75x
75x=30x+180
45x=180
x=4
PLEASE HELP WILL GIVE BRAINLIEST
Answer:
Step-by-step explanation:
in tri ADC and tri BDC
∠ADC =∠BDC = 90
DC is common
AD = BD (given)
triangle ADC ≅ tri BDC by SAS congruency
hence AC = BC by CPCT ( congruent parts of congruent triangles)
hence, BC = 13
Answer:
13
Step-by-step explanation:
in a proof, you could say that since AD is congruent to BD, since that is given to you, and angle ACD is congruent to angle CDB since a perpendicular bisector makes both sides a right angle, and CD is congruent to CD, (I forgot the reasoning for this part). after this, you can assume that triangle ACD is congruent to triangle CDB. and that would mean AC is congruent to CB because of CPCTC (Corresponding Parts of Congruent Triangles are Congruent), which would then mean that since AC is 13, CB would be 13 as well.
A new amusement-park ride that lasts 1 minute can have up to 1200 riders per hour. How many riders can ride per minute?
Answer:
20 riders can ride per minute.
Step-by-step explanation:
The picture says to divide to find the number of riders. If we apply this here, we can see that 1200 ÷ 60 is 20.
The reasoning behind this is:
There are 60 minutes in an hour.
If the park ride lasts a minute, then the ride can have 60 rides per hour.
The question states that the ride can have up to 1200 riders per hour, so you need to divide 1200 by 60.
1200 ÷ 60 = 20.
The price of a DVD is 24.00 plus 8%tax. What is the total Price on this DVD in dollars and cents?
Answer: $25.92
Step-by-step explanation: Using proportions, I found what 8% of 24 is. 8/100 = x/24, as shown in the photo. 8 x 24 = 192. Divide by 100 for 1.92 and that is the tax. Add 1.92 to the original of 24 to get $25.92
Help Asap! Use the triangle sum theorem to solve for x in the triangle.
x+53+90+46 = 180 because the sum of all the interior angles of a triangle are always 180 degrees
x+189 = 180 here this proves that in this problem, x is negative
subtract 189 from both sides
x = -9 and that's your answer! hope this helps!
If my emplover offers to pay me using a payroll card, do I have to accept
It?
0.7 bigger than 7/9 ?
Answer: no it’s the opposite
Step-by-step explanation: 7/9is greater than 0.7
Describe the series of rigid transformations that maps PQS onto P’’’ Q’’’ S’’’
Would love an answer by tomorrow!!! Due: 10/6/20 9AM (thanks!!)
Answer: Look in the pdf I attached
Step-by-step explanation:
On the second page it has answers
i need some help ill give brainly
Answer:
Step-by-step explanation:
7/4 as a whole number
Answer:
[tex] \frac{7}{4} is \: not \: a \:w hole \: number \: \\ it \: is \: a \: mixed \: number \: \\ we \: can \: simplify \: it \: in \: to \: 2 \frac{1}{4} \\ thank \: you[/tex]
Dividing a number by 2 is the same as multiplying that number
by:
John has 1 1/4 acres of land. it takes 80 1/2 pounds of fertilizer to cover one acre. How much fertilizer does John need to cover his land.
[tex]area \: of \: land \: with \: john \: = 1 \frac{1}{4} \: acres \ \\ \\ = \frac{(4 \times 1) + 5}{4} \\ \\ \\= \frac{9}{4} \: acres[/tex]
Quantity of fertilizer needed to cover 1 acre of land :-
[tex] \: \ \\ = 80 \frac{1}{2} \: pounds \\ \\ = \frac{(2 \times 80) + 1}{2} \\ \\ = \frac{81}{2} \: pounds[/tex]
Quantity of fertilizer needed by John to cover his land :-
[tex] \frac{9}{4} \times \frac{81}{2} [/tex]
[tex] \frac{(9 \times 2 ) \times (81 \times 4)}{8} [/tex]
[tex] \frac{(18 \times 324)}{8} [/tex]
[tex] = \frac{5832}{8} [/tex]
[tex] = 729 \: pounds[/tex]
∴ John needs 729 pounds of fertilizer to cover his land .
What is the square root of 30 rounded to the 2 decimal places.
Answer:
5.48
Step-by-step explanation:
Convert
√30 to a decimal.
5.47722557
Find the number in the hundredth place 7 and look one place to the right for the rounding digit 7. Round up if this number is greater than or equal to 5 and round down if it is less than 5.
What is an equation of the line that passes through the point (5, 4) and is parallel to
the line 6x – 5y = 15?
Someone please help me
Answer & Step-by-step explanation:
When two lines are parallel, their slopes are the same. To find the slope of the given equation, convert to slope-intercept form:
[tex]y=mx+b\\\\[/tex]
m is the slopeb is the y-intercept, which is the value of y when the value of x is zerox and y are the corresponding coordinate points (x,y)[tex]6x-5y=15[/tex]
Solve for y. Subtract 6x from both sides:
[tex]6x-6x-5y=15-6x\\\\-5y=-6x+15[/tex]
Divide both sides by -5:
[tex]\frac{-5y}{-5} =\frac{-6x}{-5} +\frac{15}{-5} \\\\y=\frac{6}{5}x-3[/tex]
The slope is [tex]\frac{6}{5}[/tex].
Now you need to make an equation in point-slope form:
[tex]y-y_{1}=m(x-x_{1})[/tex]
m is the slope[tex]x_{1}[/tex] and [tex]y_{1}[/tex] are the coordinate pointsInsert known values:
[tex]y-4=\frac{6}{5}(x-5)[/tex]
You can use this equation, or you can convert to slope-intercept form by solving for y:
Use the distributive property:
[tex]y-4=\frac{6}{5} x-6[/tex]
Add 4 to both sides:
[tex]y-4+4=\frac{6}{5}x-6+4\\\\ y=\frac{6}{5}x-2[/tex]
:Done
The equation of the perpendicular line is [tex]y = \frac 65x - 2[/tex]
The equation of the line is given as:
[tex]6x -5y = 15[/tex]
Start by calculating the slope (m) of the line as follows:
[tex]6x -5y = 15[/tex]
Subtract 6x from both sides
[tex]-5y = 15 - 6x[/tex]
Divide both sides of the equations by -5
[tex]y = -3 + \frac65x[/tex]
Rewrite as:
[tex]y = \frac65x-3[/tex]
For a linear equation, y = mx + b, the slope of the line is m
So, the slope is:
[tex]m = \frac65[/tex]
The equation of the line is said to be parallel to the above equation
So, the slope of the line is:
[tex]m = \frac65[/tex]
The line is said to pass through point (5,4).
So, the equation of the line is:
[tex]y = m(x - x_1) +y_1[/tex]
This gives
[tex]y = \frac 65(x - 5) +4[/tex]
Expand
[tex]y = \frac 65x - 6 +4[/tex]
[tex]y = \frac 65x - 2[/tex]
Hence, the equation of the line is [tex]y = \frac 65x - 2[/tex]
Read more about line equations at:
https://brainly.com/question/14323743
Is this rational or irrational? If so why ?
Answer: 0.12 repeating is a Rational number
Step-by-step explanation:
Any number with a terminating or repeating decimal representation is a rational number <!>Brainiest Appreciated<!>
Point V is the midpoint of line MP.
If VP = 4x – 6, and MP = 6x + 2.
Find the length of line MP.
Answer:
44
Step-by-step explanation:
1. Since point V is the midpoint of line MP, VP is half of MP.
2. Since VP is half of MP, 2(4x-6) = 6x+2
3. [tex]\frac{2(4x-6)}{2} =\frac{6x+2}{2}[/tex]
4. 4x-6 = 3x+1
5. x = 7
6. Substitute x with 7 on equation 6x+2. 6(7)+2
7. Answer 44.
The Babysitter's Block charges a rate of $15 an hour per child plus an initial fee of $25 per household. Super Sitters charges a flat rate of $20 an hour per child.
For hours ______ of service, both babysitting services would cost the same.
Answer:
i think its 7500
Step-by-step explanation:
What is the zero of f?
Answer:
be more specific
Step-by-step explanation:
For me to answer it
Think of a three digit number whose product is twenty and whose sum is nine
PLZ RESPOND ASAP
1:The total earnings from mowing a lawn for 3 hours is $19.50. What equation can be used to model the total earnings for mowing a lawn x hours?
2:The ratio of students to adults at a school is 14 : 2. Suppose there are a total of 490 students. How many adults are at the school?
Answer:6.5x=y
Step-by-step explanation:1- divide 19.50
2- get 6.5
3- add variable
4- get 6.5x=y
Answer:
1.) 3x = 19.50 (they got 6.5 and hour)
2.) 70 adults
Step-by-step explanation:
Work for #2
[tex]\frac{14}{2}[/tex] [tex]\frac{490}{x}[/tex] then cross multiply. 14*x = 14x 490*2 = 980
So 980 = 14x (divide by 14)
x = 70
So 70 adults
Hope this helps!!!
Solve the system by substitution. 12x+6y+7z=−35 7x−5y−6z=200 x+y=−10
Answer:
BiG ChUnGuS moo
Step-by-step explanation:
Answer:
Read Below
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
( 10 , −20, − 5 )
Equation Form:
x =10, y =−20, z = −5
Worth all my points plus Brainlist answer number 14 please it’s due in three hours
Answer:
Answer below
Step-by-step explanation:
2.08
2.082
2.8
2.82
√8 (it's 2.8284)
Answer:
let me know if im incorrect!
Step-by-step explanation:
2.082, 2.08, 2.8, 2.82, 8 squared (2.828)
Math | Big Ideas Mini-Project Calculating the Cost of Travel How much does a group vacation cost? Write a proposal for the vacation you are planning. Your goal is to persuade your travel company to offer the group vacation you are planning. Use the information in problems 1-3 to help you. Your proposal must include the following information: a destination a list of 3 to 5 attractions or activities that everyone will visit on the trip, such as museums, amusement parks, etc. (this will help determine the activities costs) the total cost for each person and the specific cost for each category: airfare, hotel, meals, and activities the total cost for the entire group of 12 people and the total cost for each category: airfare, hotel, meals, and activities a recommended price to charge each person that is slightly higher than the cost per person so that the travel company can earn money by offering this group vacation
Answer:
okyyyy
Step-by-step explanation:
I explain the answer of question
To find the volume of a box that has a 19 by 22 base and 27 layers, I multiply the area of the base times the height.
HELP PLS MY TEACHER NEEDS IT DONE NOW
Answer:
11286
Step-by-step explanation:
The volume of a box or a cube is base time height times height.
base × width × height = volume
19 x 22 x 27 = volume
=11286
Hope this helps!
It can be concluded that, the statement made by the student - multiply the area of the base times the height is correct method to find the volume of box.
What is the volume of a Cuboid?
The volume of a cuboid is given by -
V = L x B x H.
where -
L is the length
B is the breadth
H is the height
Given is a statement made by a student who says - To find the volume of a box that has a 19 by 22 base and 27 layers, I multiply the area of the base times the height.
Since the dimensions of the base represent a rectangle, We can place 27 layers over it one after the another, the resulting figure will be a cuboid, such that the height of the cuboid will 27 units. The volume of the box will be -
Area of its base x 27
Or we can write -
19 x 22 x 27
11286 units³
Therefore, it can be concluded that, the statement made by the student - multiply the area of the base times the height is correct method to find the volume of box.
To solve more questions on Cuboids, visit the link below-
https://brainly.com/question/24175529
#SPJ2
A recipe calls for 3 cups of flour to make 7 cookies. If Nancy made 98 cookies, how many cups of flour did she use?
Answer:
42
Step-by-step explanation:
7 cookies : 3cups
98 cookies: more
98
--- × 3 = 42 cups
7
use the distributive property 15(4n-2)=
Answer:
60n-30
Step-by-step explanation:
you would do 15 * 4n
that would give you 60. since 15 *4 is 60 and then you would just put the n
15*2 equals 30. You would make it a negative 30 since it is a negative 2.
then you would combine them and get the answer
60n-30
Hope this helps!
Find the slope of the line through the points (-1,3), and (2,-6)
(PLEASE HELP)
Answer: slope = -3
Step-by-step explanation:
m = y2 - y1 / x2- x1
m = -6 -3 / 2+1
m = -9 / 3
m = -3
HELLLPP!!!!
Which series of transformations will move the triangle in quadrant 1 onto the similar triangle in quadrant three?
Answer:
Its D if you think about it
Step-by-step explanation:in your mind move the triangle on the top right down 6 units and then turn your triangle 90 degrees counter clockwise (quick maths)
The only transformation that will move the triangle in quadrant 1 onto the similar triangle in quadrant three is;
Option D; translation 6 units down and rotation 90° counterclockwise
The y-coordinate of the right angle vertex of the triangle in quadrant 1 is y = -2. Meanwhile the y-coordinate of the same right angle point of the triangle in quadrant 3 is y = -4.
Thus, for the triangle in quadrant 1 to be on the same level with that in quadrant 3, we need to translate the triangle in quadrant 1 downwards by 6 units.
Now, since we want to map this newly translated triangle to the one in quadrant 3 and as such we need to rotate it 90° counterclockwise
Read more at; https://brainly.com/question/18308401
