Answer:
w=3.33
Step-by-step explanation:
you should solve carefully surely u will get that answer...it won't be easy to solve it using phone that is y I didn't send solution
3/7 of the students in a school are girls. If there are 64 boys find how many girls there are
Answer:
About 28
Step-by-step explanation:
Answer:90
Step-by-step explanation:Hi.
Here is your answer---
Let the number of Students in a school be x.
Thus,Number of Girls = 3/7 of the total Students
= 3/7 of x
= 3x/7
We know,
Number of Boys + Number of Girls = Total Students.
64 + 3x/7 = x
64 = x - 3x/7
64 = (7x - 3x) /7 [Taking L.C.M.]
64 × 7 = 4x
x = 60 × 7
x = 420
Total number of Students in a school is 420.
Thus, Number of Girls = 3/7 × x
= 3/7 × 420
= 90
Thus, the number of Girls in a school is 90.
______________________
Hope it helps.
Have a nice day.
Given that R = 4 x + 9 y Find x when y = 1 and R = 1
Answer:
x=-2
Step-by-step explanation:
R=1
Y=1
So the equation is
4x+9=1
4x=1-9
4x=-8
x=-8/4
x=-2
Answer:
x=-2
Step-by-step explanation:
R=1
Y=1
So the equation is
4x+9=1
4x=1-9
4x=-8
x=-8/4
x=-2
plz help me its do today
Answer:
equation= y=4x+6 slope= 4 yint= 6
Step-by-step explanation:
use y2-y1/x1/x2 then look where the zero is on the table. hope this helped.
pLease help and thanks
Answer:
a
Step-by-step explanation:
Every x or domain is unique and doesn't repeat. Therefor, it will pass the vertical line test. You can not have a repeating x.
Enter the number in scientific notation.
4,800,000,000,000 =
x10
Answer:
4.8 x 10^12
Step-by-step explanation:
Move the decimal to the second space so:
4.800000000000
Then count how many spaces the decimal moved so:
12
Then get rid of the 0s and add the x 10^12 so: 4.8 x 10^12.
Step-by-step explanation:
4,800,000,000,000 = 4.8 x 10^12
This is a conversion to standard form question. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)
En la biblioteca hay 400 libros. Si el 25% son de matemáticas. Cuantos libros de matemáticas hay?
Answer:
100.
Step-by-step explanation:
25%*400
=100
¡Espero que esto haya ayudado!
the ratio of the length of a rectangle to its width 3:2. Give 3 possible dimensions of the rectangle in cm
Answer:
1.) 3:2 → length = 3cm ; width = 2cm
2.) 6:4 → length = 6cm ; width = 4cm
3.) 9:6 → length = 9cm ; width = 6cm
Step-by-step explanation:
The ratio 3:2 is length:width. This means that if you were to simplify the values by a common factor, the result would always be [tex]\frac{3}{2} = \frac{length}{width}[/tex].
To find three dimensions, pick any random three numbers and multiply one by one to both numerator and denominator:
[tex]1,2,3\\\\\frac{3}{2}(\frac{1}{1} )= \frac{3}{2} \\\\\frac{3}{2} (\frac{2}{2} )=\frac{6}{4}\\\\\frac{3}{2} (\frac{3}{3} )=\frac{9}{6}[/tex]
Convert the given ratios to length and width:
1.) 3:2 → length = 3cm ; width = 2cm
2.) 6:4 → length = 6cm ; width = 4cm
3.) 9:6 → length = 9cm ; width = 6cm
If you were to simplify each, the result would be 3:2.
:Done
Please help asap! Due tonight!
Answer:
A, [tex]\sqrt{17}[/tex]
Step-by-step explanation:
a^2 + b^2 = c^2
8^2 + b^2 = 9^2
64 + b^2 = 81
b^2 = 17
b = [tex]\sqrt{17}[/tex]
Answer:
by pythagoras theorem
9² = 8² + x²
x² = 81 - 64
x² = 17
x = root 17
option A
If y = -30 when x = 15, what is the value of x when y = 60?
Answer:
If y = -30 when x = 15
then x = 60 when y = 60
1. Which of the following lines is parallel to the line y = -3/2x +1 and contains the point (4,2)?
Answer:
The answer should be y = -[tex]\frac{3}{2}[/tex][tex]x[/tex] + 8, but its not one of the answers, so check the question again.
Step-by-step explanation:
If the second line is parallel, then the gradient will be the same:
y = -[tex]\frac{3}{2}[/tex][tex]x[/tex] + c
Find what c is (y-intercept) by inputting the given point into the equation (4,2):
2 = (-[tex]\frac{3}{2}[/tex] x 4) + c
2 = -6 + c
c = 8
What is DCB? (eeeeee)
Answer:
53 degrees
Step-by-step explanation:
ACB seems to be a right angle so since ACD is 37 degrees:
DCB+37=90
DCB=53
Answer:53 degrees
Step-by-step explanation:
90-37= 53
Put these numbers in ascending order 1,3-3,-5,-7
Answer:
-7 , -5 , - 3 , 1 ,3
Step-by-step explanation:
ascending order is arranging from the lowest number to highest number.
Answer:
-7 ,-5 , -3 , 1 , 3
Step-by-step explanation:
negative value smaller positive value.thus, negative come first before positive value.ascending order is from smaller to greater.
Find the surface area of the prism
=========================================================
Explanation:
The front triangular face is a triangle with base 8 and height 6. Its area is
A = 0.5*base*height
A = 0.5*8*6
A = 24 square feet
The back triangular face is also 24 square feet since these are the base faces of the prism. The base faces are always congruent. It might help to imagine this figure is turned on its side.
The slanted lateral face is a rectangle of length 10 ft and width 5 ft, so its area is L*W = 10*5 = 50 square feet
The rectangular face on the left is 6 ft by 5 ft giving an area of 6*5 = 30 square feet.
Lastly, the bottom rectangular face is 8 ft by 5 ft giving an area 8*5 = 40 square feet
Overall, the total surface area is: 24+24+50+30+40 = 168 square feet
We just add up all the individual areas of each face to get the total surface area.
IS 2/7
an irrational number?
yes
no
Answer:
no, it is rational
Step-by-step explanation:
a rational number is one that can be expressed as division of an integer by a nonzero integer. So it is rational, not irrational.
Can someone show me an orthographic drawing that can make different isometric diagrams?
Answer:
Step-by-step explanation:
please please help me!!
Answer:
Domain (4, 18, 45, 58)
Range (-6, 5, 10)
Step-by-step explanation:
(4x3 + x2 - 9) - (- 5x3 + 7x - 16)
Answer:
34-5x
Step-by-step explanation:
(12+2x-9)-(-15+7x-16)
(3+2x)-(-31+7x)
3+2x+31-7x
34-5x
2.5
Read the Math Notes box for this lesson, which
describes how to find the area and perimeter of a
shape. Then examine the rectangle at right. If the
perimeter of this shape is 120 cm, which equation
below represents this fact? Once you have selected
the appropriale equation, solve for c.
2.1 + 5 + 61-1= 120
4(
6-1-20
2(6x-1)+220+5)= 120
d.
(2x + 56.X-1 = 120
Find full question attached
Answer and explanation:
The perimeter of a rectangle is the sum of all the sides of the rectangle.
From the question(attachment) we can see the length and width of the rectangle given. Therefore, to find the perimeter of the rectangle we add up the length(2 sides) and the width(2 sides).
The width = 6x +1
The length = 2x-5
Therefore the equation of the perimeter 120 :
6x-1+6x-1+2x+5+2x+5 =120
Also same thing as
2(6x-1)+2(2x+5)=120
Hence, correct option is C
What is 8^3 * 7^-3 simplified?
Answer:
Exact form: [tex]\frac{512}{343}\\[/tex]
Decimal Form:1.4927
Mixed Number Form: 1 [tex]\frac{169}{343}[/tex]
Brainliest pleaseWhat is an equation of the line that passes through the points (4, -2) and (8,3)?
Solve the equation for y.
3x + jy= 7
Answer:
[tex]y=\frac{7-3x}{j}[/tex]
Step-by-step explanation:
First, subtract 3x. This leaves you with jy=7-3x. Then, divide by j, leaving you with [tex]y=\frac{7-3x}{j}[/tex] .
Right Answer Gets Brainliest
A number b minus 6.9 is less than or equal to 12. Write this word sentence as an inequality.
Answer:
b-6.9 ≤ 12
Step-by-step explanation:
PLS HELP ME!
You buy 3.17 pounds of peaches, 1.15 pounds of pears, and 2.26 pounds of grapes. What is your total bill?
Answer:
Step-by-step explanation:
just add
3.17
1.15
2.26
-------
7. 48 lbs
im pretty sure
the distance between two towns is 300 km two cars start simultaneously from this towns and move towards each other the speed of one car is more than the other by 7 km per hour if the distance between the cars after 2 hours is 34 kilometre find the speed of the cars
Answer: I think its 131.19, but not too sure.
Step-by-step explanation:
To find the speed, you would do distance/time, so I added 300 and 7. I got 307, then I divided 307 (distance) from 2.34 (time). I got 131.19
Do you want the speed of both cars? then the answer would be:
(300)- first car= 128.20
(307)- second car= 131.19 (if you need to round this answer, it would be 131.2)
help please I do not understand but could someone tell me what to do??
Answer:
the answer is 4
Step-by-step explanation:
you plug in the 8 into the y variable. Then you divide 8 by 2. The answer comes out as 4.
Annabella Works in a deli and has been tracking the daily sales of different items over several months Annabelle found that when there was an increase in the number of cups of hot chocolate sold the number of cups of coffee sold also increased similarly where there was a decrease in the number of cups of hot chocolate sold the number of cups of coffee also decrease which of the following is a valid conclusion
Answer:
The increase in the sale of hot chocolate is correlated to, but not caused by, the sale of coffee.
Step-by-step explanation:
For Plato
Compute the variances in dollar amount and in percentage. (Round to the nearest whole percent.) Indicate whether the variance is favorable (F) or unfavorable (U). Budgeted Amount - Expense $255.00 Actual Amount $225.00
Answer:
Variance is the difference between a Budgeted Amount and the Actual Amount. In terms of expenses, if the Budgeted amount is more than the Actual amount, the variance is Favorable because less was spent than was supposed to be spent.
The reverse is true.
Variance = Budgeted Amount - Actual amount
= 255 - 225
= $30
Percentage = Variance / Budgeted amount
= 30/255
= 11.76%
The variance is FAVORABLE because the actual amount was less than the budgeted amount.
what is the measure of <x
On the number line, Point B is between points A and C . The distance between points A and B is 1/3 of AC. What is AB?
I think the answer is b
I think the answer is b
I think the answer is b
I think the answer is b
The school is having a dance as a fundraiser. Tickets cost $. Each
Answer:
How are we supposed to know .???
we can only see half of the problem
Step-by-step explanation: