There are 24 students in Ms. Woodall's class. 1/2 of the students are boys. 1/3 of the boys have brown hair. what is the number of the boys in Ms. Woodall's class who have brown hair?
Answer:
the answer is 4
Step-by-step explanation:
1/2 of 24= 12
1/3 of 12=4
hope this helps
work
Determine whether each triangle with sides of given lengths is a right
triangle. Justify your answer. (Example 3)
30 cm, 122 cm, 125 cm
5
Answer:
It is not.
Step-by-step explanation:
The formula of a right triangle is "[tex]a^{2}+b^{2} =c^{2}[/tex]" where c is the hypothenuse (the longest side of the triangle) if we replace the formula with the values we will get
"[tex]30^{2} +122^{2} =125^{2} \\900 + 14884 = 15625\\15784\neq 15625[/tex]
-4h - 2 = -6h - 8 i need all the steps pls!!
Answer:
h=-3
Step-by-step explanation:
-4h-2=-6h-8
+6h +6h
2h-2=-8
+2 +2
2h=-6
h=-3
What is the sum of 25% of 2018 and 2018% of 25?
Answer:
1009
Step-by-step explanation:
0,25 x 2018 = 504,5
20,18 x 25 = 504,5
504,5 + 504,5 = 1009
Answer:
1,009
Step-by-step explanation:
[tex] \frac{25}{100} \times 2018 = 504.5[/tex]
[tex] \frac{2018}{100} \times 25 = 504.5[/tex]
[tex]504.5 + 504.5 = 1009[/tex]
hope it helps you ☺️
HELPPP THIS IS DUE IN 2 HOURS PLZZZZZ HELPPP I WILL GIVE BRAINLIST
Answer
Input= 5
Output= 120
Step-by-step explanation:
The input goes up by 1, so m=5
The output shows how many hours there are in that many days so blank=120
Answer
output for m is 5
Step-by-step explanation
- multiply the input by a number to get the output
- to get the number to multiply it by you can divide a given out put by the input
( 24/2) = 12
- notice patterns
input- output
2 24
3 36
4 48
5 120
10,295 - 3,429 = N
N = ?
Answer:
The Answer is 6,866
Which one is it???????
What fraction is shown on the ruler below?
Correct answer pls!
Answer:
The last one, I think
Step-by-step explanation:
Answer: 4 5/16
Step-by-step explanation: becuase i got 100 on quiz
factor 4a^2-b^2-2a+b
Answer:Equation at the end of step 1
STEP
2
:
4a2 - b2
Simplify ————————
2a - b
Trying to factor as a Difference of Squares:
2.1 Factoring: 4a2 - b2
Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
A2 - B2
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : 4 is the square of 2
Check : a2 is the square of a1
Check : b2 is the square of b1
Factorization is : (2a + b) • (2a - b)
Canceling Out :
2.2 Cancel out (2a - b) which appears on both sides of the fraction line.
Final result :
2a + b
Step-by-step explanation:
Will mark brainliest! help asap! Don’t scam
Select all of the choices that are equal to (-5) - (-12)
-7
7
(-5)+12
(-5)+(-12)
Answer:
the awnser is. (-5) + (-12)
Answer: 7, -5+12
Step-by-step explanation:
Minus a negative is just like adding so -5 -( -12) would be the same as -5+12 which is 7
50/20 equals 20 over X
Answer:
50/x
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
cross multiply:
50*x = 20*20
50x=400
divide by x (50)
50x/50 = 400/50
x=8
please help i need this rn. no spammers please.
Answer:
x = -6 & y= 42
Step-by-step explanation:
I hope this helps :)
x = 6, y = -42
Substitution:
-7x = -5x - 12
-2x = -12
x = 6
When x = 6,
y = -7(6) = -42
Kahleela starts the engine on her small private airplane. The engine drives a propeller with a radius of 8.5 feet and its centerline 11.5 feet above the ground. At idle, the propeller rotates at a constant speed of approximately 800 revolutions per minute. The height of one propeller tip as a function of time is given by h = 11.5 + 8.5 sin(800t), where h is the height in feet and t is the time in minutes. Find h when t = 5.5 minutes.
Answer:
a=21.1
Step-by-step explanation:
You can use the given (incorrect) equation and fill in the value of t to find h:
h = 12.5 +9sin(750(3.5)) = 3.68 . . . . feet
__
Or, you can use the correct equation, or just your knowledge of revolutions:
h = 12.5 +9sin(750(2π·3.5)) = 12.5 . . . . feet
in 3.5 minutes at 750 revolutions per minute, the propeller makes 2625 full revolutions, so is back where it started — at 12.5 feet above the ground.
Answer:
A. 3.1 feet is the answer i believe.........
Step-by-step explanation:
I urgently need help!!!!!!
Answer:
You are given a right triangle. The sum of the two acute angles should add up to 90 degrees. Set up an equation using the expressions given and solve for x. Once you know the value of x plug it back into each expression to find the measure for each angle.
Step-by-step explanation:
Angle 1 + angle 2 = 90
solve for x = ____
Plug the value into each expression to find the measure of each angle.
Answer:
D
Step-by-step explanation:
(2x+6)+(5x+14)=90
7x+20=90
7x=70
x=10
(2x+6)=26°
(5x+14)=64°
I need help with solving this math problem please I will give brainliest to whoever gets it correct!!!!
Answer:
6^2+8^2=10^2
5^2+x^2=6^2
Step-by-step explanation:
Find the area of the triangle, show work and hurry
Answer:
Area=[tex]\frac{13(6)}{2}[/tex]
=[tex]\frac{78}{2}[/tex]
=39
Step-by-step explanation:
Answer:
39 ft
Step-by-step explanation:
use the formula for the area of the triangle (base*height)/2
(13*6)/2=78/2= 39 ft
WILL AWARD 20 BRAINLY POINTS!
What does a=? b=? Angle B=?
Answer:
If you were solving the right triangle, it would be:
m∠A = 46°
m∠B = 44°
m∠C = 90°
AB = 32
BC ≈ 23
AC ≈ 24
Step-by-step explanation:
To solve this right triangle, you can use trigonometric ratios to solve for the sides. To find the angle measures:
m∠A = 46° (given)
m∠B = x
m∠C = 90° (given)
180 - (46 + 90) = x
180 - 136 = x
44 = x
m∠B = 44°
To find the side measures, you can use tangent, sine, cosine, and the Pythagorean Theorem.
Recall that:
tangent = opposite side/adjacent side
sine = opposite side/hypotenuse
cosine = adjacent side/hypotenuse
So:
sin46 = BC/32
BC = 32 (sin46)
BC ≈ 23
tan46 = BC/AC
AC = BC/tan46
AC = (23.01887361...) (tan46)
AC ≈ 24
Help lol I dunno what to do
Answer:
same
Step-by-step explanation:
Answer:
The answer is 9.2
Step-by-step explanation:
n= 3.7. 12.8 + 6(n - 0.5)
Answer:
im assuming its 6n+9.8 given that this has no context
Step-by-step explanation:
Write as a repeated addition. Use fraction
strips or a number line to calculate each
answer.
a) 2 x 1/3
b) 2 x 5/4
c) 4 x 5/2
d) 5 x 1/6
e) 6 x 3/5
f) 7 x 7/6
Please answer it it as quickly as possible....
Answer:
A) 2/3
B) 5/2
C)5/2
D) 5/6
E) 9/5
F) 49/6 (LOWEST TERM IT URSELF PLS)
Write the equation of the line in slope-intercept form: y=mx+b
Given: Point (-3,-1) Slope: 0
Answer:
Y=-1
Step-by-step explanation:
The slope of line is zero
Choose the expression that is equivalent to the expression
n/4 n/4 n/4 n/4. A. N. B. 1/4n. C. 4n. D. 0
Answer:
A. n
Step-by-step explanation:
n/4 + n/4 + n/4 + n/4 = 4n/4 = n
On solving the expression, n/4 + n/4 + n/4 + n/4 , we get n.
What is a expression? What is a mathematical equation? What is equation modelling?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators. A mathematical equation is used to equate two expressions. Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.
We have the following expression -
n/4 + n/4 + n/4 + n/4
We can write -
n/4 + n/4 + n/4 + n/4
n/4(1 + 1 + 1 + 1)
4 x n/4
n
Therefore, on solving the expression, n/4 + n/4 + n/4 + n/4 , we get n.
To solve more questions on Equations, Equation Modelling and Expressions visit the link below -
brainly.com/question/14441381
#SPJ2
4.
-4 + 5n = 18 + 3n
a. -12
b. -11
C.
1.5
d. 11
Answer:
d
Step-by-step explanation:
-4+5n=18+3n
step 1 add 4 to each side
5n=22+3n
step 2 subtract each side by 3n
2n=22
step 3 divide each side by 2
n=11
Evaluate a + (-6) where a =
4 and b= 2.
Answer:
-2
Step-by-step explanation:
a + (-6), a = 4
(4) + (-6)
4 - 6
= -2
which of the following is the best estimate for 487 divided by 67
Answer: 7.26
Step-by-step explanation:
calculator
Which is equivalent to 243 Superscript two-fifths?
3
6
9
12
Answer: Answer is 9
Step-by-step explanation:
Answer:
the answer to this question is C. 9
Step-by-step explanation:
At this pace, how many miles can she run in 88 minutes?
Answer:
What is her pace?
Step-by-step explanation:
Find her pace, then do 88/p to find how many miles she can run.
If her pace is 11 minute/mile, then she can run 8 miles.
8*11=88
Phyllis invested $13,000, a portion earning a simple interest rate of 5¼% per year and the rest earning a rate of 5% per year. After one year the total interest earned on these investments was $672.50. How much money did she invest at each rate?
Answer:
Phyllis invested $9000 at the rate of 5.25% and $4000 at the rate of 5%.
Step-by-step explanation:
Formula for the simple interest is,
Interest = [tex]\frac{P\times r\times t}{100}[/tex]
Here, P = Principal amount
r = rate of interest
t = Duration of investment
Let Phyllis invested amount (at 5.25% rate of interest) = $x
Therefore, Interest on this amount,
Interest = [tex]\frac{5.25\times x}{100}[/tex]
= $0.0525x
If he invested the rest amount $(13000 - x) at the rate of 5%,
Interest earned on this amount = [tex]\frac{(13000-x)\times 5\times 1}{100}[/tex]
= $(650 - 0.05x)
Interest earned on total amount = $672
Therefore, $0.0525x + $(650 - 0.05x) = $672.5
0.0025x + 650 = 672.5
0.0025x = 22.5
x = $9000
Rest amount = 13000 - 9000
= $4000
Phyllis invested $9000 at the rate of 5.25% and $4000 at the rate of 5%.