Answer: $ 1.50
Step-by-step explanation:
Sorry if I’m wrong
A school district is planning on buying new desks for its classrooms. Each secondary classroom is to have 5 more desks than an elementary classroom. For 20 elementary classrooms and 25 secondary classrooms, a total of 1,115 desks are needed.
How many desks are to be in each secondary classroom?
Answer:
27
Step-by-step explanation:
Which equation gives the number of 1/4 centimetre that are in 7/8 centimetres
Answer:
2/8
Step-by-step explanation:
Please help
Much appreciated
Answer: First one, 25x^2y^22
Step-by-step explanation:
if you multiply y^5*2 you get y^10 and x^2
that makes x^2y^10
then, if you multiply y^3*4 you get y^12
so you have to add the y s that makes x^2y^22
What is the slope of the line that passes through the following points:
(4,-3), (-5, 10)
Answer:
M= -13/9
Step-by-step explanation:
use y=mx+b formula
name the angle pairs shown. Then find the missing angle measure
1. Angle pair
2. M
Answer:
x would be 110 degrees as well and its pair would be the angle opposite of it. The other pair of angles would be the ones next to it. Those equal250 degrees.
Step-by-step explanation:
Sarah and Jack are selling popcorn and cotton candy at the State Fair. Sarah sold 3 bags of
popcorn and 9 sticks of cotton candy for a total of $75. Jack sold 8 bags of popcorn and 5
sticks of cotton candy for a total of $67. Which is cost of the popcorn?
m=rise/run
m=?
b=?
equation:?
In science class, Mrs. Moore's students were directed to weigh a 300-gram mass on the balance scale. Tina weighed
the object and reported 328 grams.
Answer: 9 1/3%
Step-by-step explanation:
The length of segment EF is 8 units, the length of segment ED is 10 units, and the length of segment EA is 13.33 units. Find the length of FA Explain or show your reasoning,
Answer:
5.33 unit
Step-by-step explanation:
logically FA = EA - EF = 13.33-8 = 5.33 units
Since, E, F and A all lie on the same line EA . The information ED= units is redundant. Therefore we can say that FA= 5.33 unit
The length of FA is 5.33 units
The given parameters are:
[tex]\mathbf{EF = 8}[/tex]
[tex]\mathbf{ED = 10}[/tex]
[tex]\mathbf{EA = 13.33}[/tex]
EF and EA implies that point E is between line FA
So, the length of FA is calculated using:
[tex]\mathbf{FA = EA - EF}[/tex]
Substitute known values
[tex]\mathbf{FA = 13.33 - 8}[/tex]
Subtract
[tex]\mathbf{FA = 5.33}[/tex]
Hence, the length of FA is 5.33 units
Read more about lengths at:
https://brainly.com/question/18983323
Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's profits last month, where x is the number of sandwich lunch specials sold and y is the number of wrap lunch specials sold.
1. Change the equation to slope intercept form. Identify the slope and y- intercept of the equation. Be sure to show all your work.
2x + 3y= 1470
2x + 3y -2 = 1470 subtract 2x from both sides
3y= 1470 -2x simplify
3y/3= 1470/3 -2x/3 divide both sides by 3
y= -2/3x +490 simplify
-⅔ is the slope and 490 is the y- intercept
2. Describe how you would graph this line using the slope- intercept method. Be sure to write in full sentences.
Start at 490 on the y axis. After that you would use rise over run, down 2 units and right three. Do this until you reach the end of the graph, then go oppisite; up 2 left 3
3. Write the equation in function notation. Explain what the graph of the function represents. Be sure to use complete sentences.
I CANNOT figure out how to make the equation into notation form. Can someone please help?
Answer:
y = x^4-6
y=1/ x-2
Step-by-step explanation:
hope this helps
Holly needs to buy some cloth. The following deals are available at various stores. Choose the best deal.
$16.52 per 6 yd
$13.85 per 5 yd
a
$16.52 for 6 yd
b
$13.85 for 5 yd
c
Neither
Answer:
Its A
Step-by-step explanation:
help on 36 pleasee :DD
Answer:8.5%
Step-by-step explanation:
Answer:
0.085
Step-by-step explanation:
I hope this helps! :)
the radius of a circle is 3 cm. Find it's area in terms of pi. 28.27 cm2 is wrong
Answer:
9[tex]\pi[/tex]
Step-by-step explanation:
The reason why that is wrong is because it says in terms o pi which means you do NOT multiply pi by the radius squared.
EQUATION FOR AREA OF A CIRCLE: [tex]\pi r^{2}[/tex]
When you put it all together you get: [tex]\pi * 3^{2}[/tex] which equals [tex]9\pi[/tex]
DO NOT MULTIPLY 9 AND PI. IT'S JUST 9[tex]\pi[/tex]
hope this helped :)
28.What is the slope of the line 2x + 5y = 15?
A. 2
B. -2
C.2/5
D.- 2/5
Answer:
it's -2/5 !
Step-by-step explanation:
10th Grade Algebra/Geometry class
Answer:
x=4
Step-by-step explanation:
divide the x-value by the y-value. 9/36 =0.25.
0.25*16=4
x=4.
Please answer i will give the brainliest
Answer:
∠A is 55°
∠B is 125°
∠C is 55°
∠D is 125°
Step-by-step explanation:
The two acute angles in a parallelogram are equal, and the two obtuse angles are equal too. The angles in all quadrilaterals add to 360°. Since You're given one of the obtuse angles, multiply that number by 2 (125 × 2 = 250) , then subtract that from 360 (360 - 250 = 110) for the value of BOTH acute angles. Divide that by 2 for each individual acute angle (110/2 = 55)
Answer:
A.55
b.125
c.55
d.125
Step-by-step explanation:
thank you
Jesse practices the trumpet for a total of 165 minutes during the first week of school. He practices for 245 minutes during the second week. A. Estimate the total amount of time Jesse practices by rounding to the nearest 10 minutes.
Answer:
410 minutes
Step-by-step explanation:
Given that:
Time for which Jesse practices trumpet in the first week = 165 minutes
Time for which Jesse practices trumpet in the second week = 245 minutes
To find:
The total amount of time rounded to the nearest 10 minutes.
Solution:
To find the total amount of time for which Jesse practices, we need to add the time taken for practice in the first week and the time taken for practice in the second week.
Therefore, total time taken = 165 + 245 = 410 minutes
It is already rounded off to the nearest 10 minutes.
Therefore, the answer is:
Total amount of time for which Jesse practices = 410 minutes
PLEASE HELP!!
Write a paragraph to proof to show that if <1 and <2 are congruent supplementary angles, then <1 and <2 are right angles
Answer:
Step-by-step explanation:
Supplementary angles are two or more angles whose the addition of their measures add up to [tex]180^{o}[/tex].
Given: <1 and <2.
<1 + <2 = [tex]180^{o}[/tex] (supplementary angles)
If <1 ≅ <2 (congruent property), then we have;
<1 + <1 = [tex]180^{o}[/tex]
2<1 = [tex]180^{o}[/tex]
<1 = [tex]\frac{180}{2}[/tex]
= [tex]90^{o}[/tex]
<1 = [tex]90^{o}[/tex]
So that since <1 and <2 are congruent, then;
<1 ≅ <2 ≅ [tex]90^{o}[/tex]
Therefore if <1 and <2 are supplementary and congruent, then they are right angles.
The sum of two natural numbers is 72 and the difference is 28. Let x
represent the greater number and y represent the smaller number. Find the
values of x and y.
Answer:
x= 50 y=22
Step-by-step explanation:
50 + 22=72
50-22=28
y is less than x
sorry im a bit slow could somebody help please
Answer:
The numerator is the number on top of the bottom number (denominator)
Can anyone please answer these? Who ever answers correctly will be marked brainliest.
1. Find the absolute value of |8 + y| when y = 2
2. Find the absolute value of |-8 + y| when y = -2
3. Simplify: 4 + |x + 2| when x = -5
Answer:
1. x = ±3
2. x = 13 over 5
3. –4x + 7
Answer:
1)10
2)10
3) 7
Step-by-step explanation:
Modulus means we always take the positive value for example
|-3| = +3
1) Find the absolute value of |8 + y| when y = 2
[tex]|8+2| \\|10|\\10[/tex]
2) Find the absolute value of |-8 + y| when y = -2
[tex]|-8+(-2)|\\|-8-2|\\|-10|\\10[/tex]
3) Simplify 4 + |x + 2| when x = -5
[tex]4 + |x + 2|\\4+|-5+2|\\4+|-3|\\4+3\\7[/tex]
Solve 8x − 2(x + 1) = 7x + 8. (5 points) Question 3 options: 1) 6 2) −6 3) 10 4) −10
Answer:
3.) 10
Step-by-step explanation:
8x-2(x+1) = 7x+8
8x-2x-1=7x+8
6x-1=7x+8
-1=1x+8
+1 +1
1x+9
/x
x=1+9
x=10
What is equivalent to the quotient of 10 plus x and y minus 3
Answer:
So answer is [tex]\frac{10+x}{y-3}[/tex]
Step-by-step explanation:
We are given with quotient of 10 plus x and y minus 3.
So, we can write 10 plus x as 10+x and y-3
So, quotient of 10+x and y-3 is [tex]\frac{10+x}{y-3}[/tex]
PLEASE PLEASE ANSWER :(
Construct a polynomial function with the stated properties. Reduce all fractions to lowest terms.
Third-degree, with zeros of −3, −2, and 1, and passes through the point (4,10)
Answer:
0
Step-by-step explanation:
PLEASE HURRY I AM ON THE QUIZ!!!
which expression is equivalent to -3(4x-0.50)?
–12x – 1.50
–12x + 1.50
–12x – 2.50
–12x – 3.50
Answer:
number two
Step-by-step explanation:
-3 times 4x equals -12x and -3 times -.5 is +1.5 !
1 , 3 , 6 , 10 , 15
1) What is the nth term of the sequence?
2) Use the nth term to work out the 21st term of the sequence.
First difference,
[tex]\Delta_{1} = a_{2} - a_{1} = 3 - 1 = 2 = 1 + 1[/tex]
Second difference,
[tex]\Delta_{2} = a_{3} - a_{2} = 6 - 3 = 3 = 2 + 1[/tex]
Third difference,
[tex]\Delta_{3} = a_{4} - a_{3} = 10 - 6 = 4 = 3 + 1[/tex]
And so on.
Assuming the pattern holds on, we see that
i-th difference,
[tex]\Delta_{i} = a_{i + 1} - a_{i} = i + 1[/tex]
[tex]\implies a_{i + 1} = a_{i} + i + 1[/tex]
Then, nth term is,
[tex]\implies a_{n} = a_{n - 1} + n[/tex]
[tex]= a_{n - 2}+ (n + (n - 1))[/tex]
[tex]= a_{n - 3} + (n + (n - 1) +(n - 2))[/tex]
[tex]= a_{n - (n - 1)} + \sum \limits^{n - 2}_{k = 0}(n - k)[/tex]
[tex]= a_1 + \sum \limits^{n - 2}_{k = 0}n- \sum \limits^{n - 2}_{k = 0}k[/tex]
[tex]= a_1 +n(n -2 + 1 )- \frac{1}{2} (n - 2)(n - 1)[/tex]
[tex]= a_1 +n(n -1 )- \frac{1}{2} (n - 2)(n - 1)[/tex]
[tex]= a_1 +(n -1 )(n- \frac{1}{2} (n - 2))[/tex]
[tex]= a_1 + \frac{1}{2} (n -1 )(2n- n + 2)[/tex]
[tex]= a_1 + \frac{1}{2} (n -1 )(n + 2)[/tex]
[tex]\implies a_{n} = 1 + \frac{1}{2} (n -1 )(n + 2)[/tex]
Now, the 21st term in the sequence is,
[tex]\implies a_{21} = 1 + \frac{1}{2} (21 -1 )(21 + 2)[/tex]
[tex]= 1 + \frac{1}{2} \times 20 \times 23[/tex]
[tex]= 231[/tex]
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
a) 67
b) x= -8 and 4
c) 31
Step-by-step explanation:
a) if m<1 = (6x - 5) and m<5 = (5x+7), find m<3.
6x - 5 = 5x + 7
-5x + 5 - 5x + 5
x = 12
6(12) - 5 = 5(12) + 7
72 - 5 = 60 + 7
67 = 67
b) if m<4 = 32 and m<8 = (x^2 - 4x), find x.
32 = x^2 - 4x
- 32 - 32
x^2 - 4x - 32
(x - 8)(x + 4)
x - 8 = 0 x + 4 = 0
+ 8 + 8 - 4 - 4
x = -8 and 4
c) if m<4 = (4x - 17) and m<5 = (5x - 29), find m<1.
4x - 17 = 5x - 29
-5x + 17 -5x + 17
-x = -12
/-1 /-1
x = 12
4(12) - 17 = 5(12) - 29
48 - 17 = 60 - 29
31 = 31
A whale descends 382.5 feet in 45 seconds. What operation can be used to find the average elevation change of the whale during its descent, in feet per second.
Answer:
8.5 FPS
Step-by-step explanation:
What is the solution of the system of equations below? Solve for x and y
4x+9y=14
4x+5y=6
Answer:
y = 2
Step-by-step explanation:
(4x+9y)-(4x+5y) = 14-6
4x-4x+9y-5y = 8
4y = 8
y = 2
Hope this helped!
If f (x) = StartRoot x EndRoot + 12 and g (x) = 2 StartRoot x EndRoot, what is the value of (f – g)(144)?
–84
–60
0
48
Answer:
c
Step-by-step explanation:
just did the quiz
Answer:
the answer is 0
hope this helps;)