Answer: x=40
Step-by-step explanation x-0.3x=28
Add similar elements x-0.3x=0.7x
0.7x=28
Multiply both sides by 10
0.7x · 10= 28 · 10
Refine
7x=280
Divide both sides by 7
Simplify
x = 40
Simplify the following radical expression square root of 20
Answer:
2 radical 5
Step-by-step explanation:
i am smart
Answer:
[tex]\sqrt{20} =2\sqrt{5}[/tex]
Step-by-step explanation:
Given:
[tex]\sqrt{20}[/tex]
Step 1: Factor out the biggest square number:
[tex]\sqrt{4}\sqrt{5}[/tex]
Step 2: Simplify:
[tex]2\sqrt{5}[/tex]
Therefore, [tex]\sqrt{20} =2\sqrt{5}[/tex]
Diego is making a trail mix for him and his friends to take with them on a hike next week he mixes 4 2/6 pounds of nuts, 3 3/6 pounds of raisins, and 2 3/6 pounds of chocolate chips. How many 1/3 pound bags of trail mix can he make?
A.10
B.11
C.12
D.30
E.31
Worth 20 points!!!
Answer:
31 bags
Step-by-step explanation:
Lets see the total number of pounds he mixed with nuts, peanuts, and chocolate chips.
There is a total of 10 and 1/3 pounds in total. To see how many 1/3rd bag he can have, we have to divide the total by 1/3. So we have:
So, there can be 31 bags
Answer:
31 bags bro to easy im not saying just saying that for me thx for the points (O_O)
In ΔEFG, f = 37 inches, g = 92 inches and ∠E=97°. Find the area of ΔEFG, to the nearest square inch.
Answer:1689
Step-by-step explanation:
Delta Math
What is the volume of this composite solid?
4 m
2 m
7 m
2 m
2 m
O A. 58 cubic meters
O B. 64 cubic meters
O C. 78 cubic meters
O D. 62 cubic meters
Answer:
64
Step-by-step explanation:
A P E X
A study of women’s weights found that a randomly selected sample of 234 women had a mean weight of 157.3 lb. Assuming that the population standard deviation is 15.6 lb., construct a 95% confidence interval estimate of the mean weight of all women.
Answer:
(155.301 ; 159.299)
Step-by-step explanation:
Xbar = 157.3
Sample size, n = 234
Population standard deviation, σ = 15.6
The confidence interval :
Xbar ± standard Error
Standard Error = Zcritical * σ/√n
Zcritical at 95% = 1.96
Standard Error = 1.96 * (15.6/√234) = 1.999
Lower boundary : 157.3 - 1.999 = 155.301
Upper boundary : 157.3 + 1.999 = 159.299
(155.301 ; 159.299)
Two people meet in the purple room on the fourth floor of a building. On departure, one person travels West 20 feet, South 12 feet, and Down 12 feet. The other person travels North 20 feet, East 10 feet, and Up 12 feet. How far apart are the two people? Round to the nearest tenth.
Answer:
50 feet
Step-by-step explanation:
Set up a 3-dimensional coordinate system (see the attached image).
This setup shows an axis that runs North-South (South is negative, North is positive), an axis that runs East-West (East is positive, West is negative), and an axis that runs Up-Down (Up is positive, Down is negative).
The two points in question are then:
First person's location (12, -20, -12), and the second person's location is (-20, 10, 12).
The distance between two points [tex]\left( x_1,\,y_1,\,z_1\right)[/tex] and [tex]\left( x_2,\,y_2,\,z_2\right)[/tex] is
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2+(z_2-z_1)^2[/tex]
[tex]d=\sqrt{(-20-12)^2+(10-(-20))^2+(12-(-12))^2}\\\\d=\sqrt{(-32)^2+30^2+24^2}\\\\d=\sqrt{2500}\\\\d=50[/tex]
please help me understand this problem
Answer:
simple draw an imaginary line an find both area or calculate l1,l2,b1,b2
A company is making aid badges with personal ID codes on them for each employee. The ID code will consist of two letters followed by 2 digits. Using this scenario, how many possible ID codes are there?
Answer:
67, 600
Step-by-step explanation:
There are 26 alphabet and 10 digits then the number of the possible ID codes will be 67600.
What are permutation and combination?A permutation is an act of arranging the objects or elements in order. Combinations are the way of selecting objects or elements from a group of objects or collections, in such a way the order of the objects does not matter.
A company is making aid badges with personal ID codes on them for each employee.
The ID code will consist of two letters followed by 2 digits.
Then the number of ways ID codes are there will be
[tex]\rightarrow 26 \times 26\times 10\times 10\\\\\rightarrow 67600[/tex]
More about the permutation and the combination link is given below.
https://brainly.com/question/11732255
Rationalize the denominator and simplify
What is the area of the following circle if the diameter is 2?
Answer:
Area of a circle=πr²
radius is half of the diameter
1/2×2=1
π1²
22/7×1
3.1415926535897932
~3.14
HELP ME PLEASE LAWS OF SINES !! IXL !!
Answer:
f = 19.0
Step-by-step explanation:
By applying sine rule in the triangle given in the figure,
By applying triangle sum theorem,
m∠F + m∠G + m∠H = 180°
110° + m∠G + 40° = 180°
m∠G + 150° = 180°
m∠G = 30°
[tex]\frac{sin(\angle F)}{GH}= \frac{sin(\angle G)}{HF}=\frac{sin(\angle H)}{FG}[/tex]
[tex]\frac{sin(\angle 110^0)}{f}= \frac{sin(\angle 30^0)}{g}=\frac{sin(\angle 40^0)}{13}[/tex]
[tex]\frac{sin(\angle 110^0)}{f}= \frac{sin(\angle 40^0)}{13}[/tex]
[tex]\frac{0.9397}{f}= \frac{0.6428}{13}[/tex]
f = [tex]\frac{13\times 0.9397}{0.6428}[/tex]
f = 19.0
Which value for x makes the sentence true?
Which of the following equations has infinitely many solutions?
A.
b+2=b+2
B.
b= -b+2
C.
b+2=b-2
D.
b+b=2
Answer:
A
Step-by-step explanation:
Equation A is true for all real numbers. It says the quantity b + 2 is equal to itself!
Equation B, solved for b, gives b = 1, so the equation is true only for b = 1.
Equation C, solved for b, gives 2 = -2, which is absolutely false, so the equation has no solutions.
Equation D, solved for b, gives b = 1, so only one solution
-7 2/3 + (-5 1/2) + 8 3/4
in faction
Answer:
= -4.41666666667
Step-by-step explanation:
Answer:
[tex]-7\frac{2}{3} + -5\frac{1}{2} +8\frac{3}{4}\\\\\frac{-23}{3} -\frac{11}{2} + \frac{35}{4}\\\\[/tex]
LCM (3, 2 ,4) = 12
[tex]\frac{(-23*4) -(11*6)+(35*3)}{12} = \frac{-92-66+105}{12} =\frac{-53}{12} = -4\frac{5}{12}[/tex]
Help help help I need help ASAP
Answer: 54.4
Step-by-step explanation:
Please help me!!!! Will give the brainliest!
Answer: 1 graph A
2 graph B
3 graph C
4 the number of sales a month
Step-by-step explanation:
Letter G is plotted in which Quadrant?
A . Quadrant IV
B.Quadrant II
c. Quadrant III
D. Quadrant I
Answer:
please send the picture of the question plz!
Step-by-step explanation:
Use proportions to solve the following problem. A recipe calls for 4 eggs and 3 cups of milk. To prepare for a larger number of guests, a cook uses 22 eggs. How many cups of milk are needed?
Answer:
16.5 cups of milk are needed.
Step-by-step explanation:
i hate you for reporting my answer.
A factory employs 18 women to sew 540 dresses. The women take 6 weeks to do the job. If 12
women had been employed instead, how many weeks would it have taken them to sew the 540
dresses?
9514 1404 393
Answer:
9 weeks
Step-by-step explanation:
In problems of this nature, the usual assumption is that the time required is proportional to the work product and inversely proportional to the number of people doing the job. Here, there is no change in the amount of work, but the number of people is reduced by a factor of 12/18 = 2/3.
So, the amount of time required is expected to increase by a factor of 1/(2/3) = 3/2.
(6 weeks)×(3/2) = 9 weeks
It would have taken 9 weeks to sew the 540 dresses.
Please answer, what is x?
Answer:
ths is the real answer 您同性恋您同性恋您同性恋您同性恋您同性恋
您同性恋您同性恋
Step-by-step explanation:
What do I need to do
Step-by-step explanation:
.....
Answer:
The answer is 4.
Step-by-step explanation:
All you have to do is count the dots between the library and Gabes house.
PLEASE HELP, I WILL GOVE BRAINLIEST. Katrina's cat weighed 12 3/4 pounds at its last visit to the veterinarianSince that visit, the cat has gained 5/8 pound. How much does Katrina's cat weigh now? Show your work
Answer
13 1/2 pounds
Step-by-step explanation:
welcome ;)
Answer:
the cat now weighs 13 3/8 LBS
Step-by-step explanation:
convert the fractions so you can add them together,
mult 3/4 by two to get common denominators
6/8 + 5/8
the cat gained 11/8 pounds. (1 3/8)
since the numerator is larger we add the mixed number to the 12 pounds.
13 3/8 pounds.
Question- A bakery sells 5 apple muffin for every 2 brand muffins sold. Which table shows this ratio?
No links or you get reported
is my answer correct?
Answer:
The one on the bottom left corner. I'm not sure what letter that is!
Hope this helped :)
Step-by-step explanation:
For each right triangle below, find the missing side (Pythagorean’s Theorem) and the missing angle (Angle Sum theorem.)
Answer: 180
i thank hopeful \
Choose a method you prefer to solve for a system of linear equations.
x+y=0
x-y= -16
Answer:
Eliminating
Step-by-step explanation:
The given equations are ,
x+y=0x-y= -16Here I would prefer to use Elimination Method. Since there is negative y and positive y in the equations . So we can eliminate y easily and then we can find x. Also , let's solve ,
On addition :-
→ 2x = -16
→ x = -16/2
→ x = -8
Hence the most preferred method is " Elimination Method ".1/2x + 3/2 (x + 1) - 1/4 = 5
PLEASE HELP BRO IM FAILING MATH
Answer:
Step-by-step explanation:
we have several angles that have the same vertex and so they are congruent
1) e = 35 degrees because the opp angle has this measure
2) d = 109 degrees for the reason above
3) for find f we have to notice that the sum of the three angles (if you look at the vertical line you can notice that it is a straight line, so describes two angles whose measures are 180 degrees)
f = 180 - (35 + 109)
f = 180 - 144 = 36 degrees
A company sells cereal in two different-sized boxes: a 17-ounce box for $2.89, and a 24-ounce box for $3.29. How do the unit prices of the two boxes compare?
The new candy store packed 3 ponds of bubblegum in each of their bags. How many bags would Sam need to bu if he wanted 288 ounces of bubblegum?
Answer:
NYS Math Module 3 Grade 4 Lesson 32 Concept Development
Problem 1
We all know there are 7 days in a week. How many weeks are in 259 days?
Problem 2
Everyone is given the same number of colored pencils in art class. If there are 249 colored pencils and 8 students, how many pencils does each student receive?
Problem 3
Mr. Hughes has 155 meters of volleyball netting. How many nets can he make if each court requires 9 meters of netting?
Step-by-step explanation:
Answer:
6 bags
Step-by-step explanation:
228 ounces = 18 pounds
18 pounds ÷ 3 pounds
6 bags
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We all know there are 7 days in a week. How many weeks are in 259 days?
37 weeks
[tex]\frac{1}{7} :\frac{y}{259}[/tex]
y · 7 = 1 · 259
7y = 259
7y ÷ 7 = 259 ÷ 7
y = 37
Everyone is given the same number of colored pencils in art class. If there are 249 colored pencils and 8 students, how many pencils does each student receive?
31 color pencils each and 1 extra pencil
249 ÷ 8 =
31.125 colored pencils each
This rounds to 31 color pencils and 1 extra pencil.
Mr. Hughes has 155 meters of volleyball netting. How many nets can he make if each court requires 9 meters of netting?
7 courts and he will be left with 2 meters of netting
155 ÷ 9
17 and 2/9 volleyball courts
17 courts and he is left with 2 meters of netting.
Find the missing angle.
Answer:
V=51, U=90 W= 39
Step-by-step explanation:
V= 51 Degrees (has told in the question)
U= 90 Degrees (Its A Right Angel Triangle, And Right Angle Is Always 90 Degrees)
W= 39 Degrees (Sum Of All Sides Of A Triangle = 180 Degrees
51 + 90 + W = 180
141 + W = 180
W = 180 - 141
W = 39 )
Hope It Helps,
Thanks