Of the 40 students in a class , 2/5 are girls. Of the girls , 1/4 wear glasses. How many girls do not wear glasses
Answer:
12 girls
Step-by-step explanation:
2/5 x 40 = 16
1/4 x 16 = 4
16 - 4 = 12
Find the length of side w.
43.6 cm
18.0 cm
36.5 cm
21.4 cm
Answer:
It's 36.5
Step-by-step explanation:
fill in the missing parts: 1/3 of ..... is 1/27
Answer:
Abhay Patel
Roll 1
class 4th
the diameter of a circle is 7 m. find its area and perimeter.Answer fast!!!!!
Answer:
Area≈38.48m²
perimeter≈43.98
What are 3 numbers that are in the fact family of the number 12
Plz help me!!
I have no clue how to do this because my teacher moves to fast for me. If you can help out that would be really appreciated!!
Answer:
1. x = 65
2. x = 40
3. x = -7
4. x = -4
5. x = -7
6. x = 4
Step-by-step explanation:
Angles in a triangle always add up to 180 degrees.
Thus, for each triangle you can write an equation setting the sum of the three angles equal to 180, and solving for x.
1. 180 = 80 + 35 + x
180 - (80 + 35) = x
180 - 115 = x
65 = x
2. 180 = 70 + 70 + x
180 - (70 + 70) = x
180 - 140 = x
40 = x
3. 180 = 76 + 41 + (x+ 70)
180 - (76 + 41) = x + 70
180 - 117 = x + 70
63 = x + 70
63 - 70 = x
-7 = x
4. (the red square means its a right angle = 90 degrees)
180 = 90 + 25 + (x + 69)
180 - (90 + 25) = x + 69
180 - 115 = x + 69
65 = x + 69
65 - 69 = x
x = -4
5. 180 = 50 + (57 +x) + (x + 87)
180 - 50 = (57 +x) + (x + 87)
130 = (57 +x) + (x + 87)
combine like terms
130 = 144 + 2x
130 - 144 = 2x
-14 = 2x
-7 = x
6. 180 = 80 + (9x + 4) + (16x - 4)
180 - 80 = (9x + 4) + (16x - 4)
100 = (9x + 4) + (16x - 4)
combine like terms
100 = 25x + 0
100 = 25x
4 = x
Let f(x) = - 3x – 1 and g(x)=x2 + 1.
Find (fog)(-4).
Amy and Roger both wash windows at a large downtown building. Amy can wash 25 windows in 4 hours. Roger can wash 32 windows in 6 hours.
washes windows faster.
AMY washes the widows faster than roger
mark brainliest pls i did this in class yesterday
If you monthly salary is 5,167 and 28% is withheld for taxes and social security. How much money will be withheld from your check?
Answer:
jjjjjjj
Step-by-step explanation:
nnnnnnn
una fracción equivalente a 3/4
Answer:
6/8
Step-by-step explanation:
Multiplica el numerador y el denominador por el mismo número para obtener una fracción equivalente
What is the area of this triangle?
A=bh2
54 cm²
90 cm²
108 m²
216 m²
I will give brainlest and 5/5 stars to the first person I see
Answer:
area = 1/2 *base* height
= 1/2 * 12* 9
= 54 cm^2
right triangle...
Hope this helps...
geometry need helppppppppp
Answer:
Corresponding angles:
E=P
F = Q
G=R
H=N
Corresponding side:
EF=PQ
GH=RN
FG=QR
EH=PN
Step-by-step explanation:
Just match them=)
Which ordered pair best represents the coordinates of
a point that could be the third vertex of the right
triangle?
A (5,-5)
B (-4,6)
© (-3,-6)
D (3,4)
PLS HURRY I HAVE A TEST
I need help on this problem for 50 points 3000x9000
Answer:
The answer is 27,000,000
The fractions 2/5 and 4/10 are equivalent.
A. True
B. False
Answer:
its false
꧁hope its help꧂
ฅ^•ﻌ•^ฅ #
Which conic section is represented by the following equation? 9x^2 – 5x – 3y^2 – 2y + 4 = 0
Answer:
D. Hyperbola
Step-by-step explanation:
I put B but it was wrong
D is the right answer
The given equation is represent a ''Hyperbola''.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The equation is,
⇒ 9x² - 5x - 3y² - 2y + 4 = 0
Now, We know that;
The standard form of the equation is,
⇒ ax² + by² + 2gx + 2fy + 2hxy + c = 0
For Hyperbola, The condition is,
⇒ h² > ab
For Ellipse , The condition is,
⇒ h² < ab
Here, We have;
⇒ h = 0
⇒ a = 9
⇒ b = - 3
⇒ ab = 9 x - 3 = - 27
⇒ h = 0
Hence, We get;
⇒ 0 > - 27
⇒ h² > ab
Thus, This equation is represent a ''Hyperbola''.
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ3
PLEASE HELP!!!!!
Todd and his friends are painting 5 equal sections of a wall. The wall is 10 feet tall, but its length
is unknown.
Each section will be a different color, so they need to know the area of each section.
10 ft
Total length unknown (x)
1. Write an expression for the total area of the wall. Explain how you came up with your
expression.
Write your answer in the space below.
2. To find the area of each section, what do you need to do to the total area?
Write your answer in the space below.
3. Write an expression for the area of each section of the wall.
Write your answer in the space below.
Can y’all help me a question 25?!
Answer:
19.8839 miles away
Step-by-step explanation:
:)
Which of the following is the solution set of x2 + 8x + 12 = 0?
(-2.-6
2.6
To solve this polynomial equation, we first factor the left side.
To factor x² + 8x + 12 = 0, look for factors of 12 that add to 8.
These factors are 6 and 2 so we have (x + 6)(x + 2) = 0.
So either x + 6 = 0 or x + 2 = 0 and solving for
x in each equation, our answer is {-6, -2}.
-5y < -15 Help Me Please
Answer:
y>3
Step-by-step explanation:
-5y<-15
-5/-5<-15/-5
y>3
y can equal anything more than 4. the products value has to be greater than 15, but it has to be on the negatives
An item is on sale for $56. If this price represents a 25% discount from the original price, what is the original price?
9514 1404 393
Answer:
$74.67
Step-by-step explanation:
Let p represent the original price. Then the relation is ...
$56 = p - 0.25×p
$56 = 0.75p
$56/0.75 = p ≈ $74.67
The original price was $74.67.
Can you guys help me on question eight?!
Answer: Car Rental Company A and B
Step-by-step explanation: Everyone else charges higher prices! Good luck! :D
20. Rafael has a business selling computers. He buys computers from the manufacturer for $450
each and sells them for $800. Each month, he must also pay fixed costs of $3000 for rent and
utilities at his store. If he sells n computers in a month, which of the following equations can be used
to calculate his profit?
A. P = n(800 - 450)
B. P = n(800 - 450 - 3000)
C. P = 3000n(800 - 450)
D. P = n(800 - 450) - 3000
E. P = n(800 - 450) + 3000
Yeah
Answer: D , p = n (800 - 450) - 3000
Step-by-step explanation: Firstly, you have to account for how much money Rafael is making off of each computer (800 - 450). That factor is then multiplied by the variable "n" which represents the amount of computers sold. Lastly, since this is an equation to calculate his monthly profits, you have to subtract the rent that he is paying ($3000) from the total profit that he made off of selling the computers. Therefore, giving you the equation
P (profit) = n (amount of computers sold) (800-450) - 3000 (rent).
The equation that represents Rafael's monthly profit selling 'n' numbers of computers is D. P = n(800 - 450) - 3000.
What is an equation?An equation represents equality for the terms that are on the both side of the equal sign.
Given Rafael buys computers for 450 dollars and sells them for 800 dollars each.
He also had to pay 3000 dollars for rent and utilities for the store and the number of computers sold in each month is given by 'n'.
∴ The equation that represents his profit(P) in a month is,
P = n(800 - 450) - 3000.
learn more about equations here :
https://brainly.com/question/10413253
#SPJ2
Find the measure of the arc or central angle indicated. Assume that lines which appear to be
diameters are actual diameters.
This diagram shows three small squares and two rectangles composed of 10 small squares.
Jada says this diagram can represent 230. What does a small square represent for Jada?
Answer:
230 is the answer for this
Step-by-step explanation:
etrs grvbtczb
Answer:
yes
Step-by-step explanation:
heyyyyyy besties plz answer this question correctly and u will get brainliest plz thanks
Answer:
Nicole is more expansive
Step-by-step explanation:
x for Rhonda replaced by 2 = 21. X for Nicole replaced by 2=24
What is the % difference between $88 and $122?
Answer:
Maths
Step-by-step explanation:
The diffrence between $88 and $122 is $88+$34=$128 and $128--$34=88
3. (6a? - 8a +9) + (5a3 – 12a? - 1)
4. (8y2 – 15y-5)-(-2y2 – 4y + 20)
I want the answer and the steps
Answer:
Simplify the expression 3: 5 a ^3 − 6 a ? − 8 a + 8
Simplify the expression 4: 10 y ^2 − 11 y − 25
What is m angle H + m angle J?
Answer:
180°
Step-by-step explanation:
The measure of an inscribed angle (inscribed inside a circle) is half the measure of its inscribed arc.
m∡H = (1/2)(m arc GJI)
m∡J = (1/2)(m arc GHI)
m∡H + m∡J = (1/2)(m arc GJI + m arc GHI)
But those two arcs added together on the right side are the whole circle, so they add to 360°.
m∡H + m∡J = (1/2)360°
m∡H + m∡J = 180°
.........help me please
Answer:
no veo nada xd
Step-by-step explanation:
nose