The ratio of boys to girls in Ella’s grade is 3 to 4. The ratio of boys to girls in Minh’s grade is 4 to 5. Each grade has a total of 20 girls.
How many boys are in each grade?
There are
boys in Ella’s grade and
boys in Minh’s grade.
Answers
(20:5)x4=16 (Minhs grade)
Related Questions
Will give Brainliest!
2x2(69.4 x 2)
Answers
Answer:
555.2
Step-by-step explanation:
Please help!!!
A researcher for a travel company is looking into the prices people are willing to pay for airplane tickets. The company has communicated that the overall population mean is $265 with a standard deviation of $40.93. The researcher has a sample of 130 ticket purchases from one location. By the central limit theorem, which interval can the researcher be 95% certain that the sample mean will fall within?
A.
$261.41 and $268.59
B.
$257.82 and $272.18
C.
$264.37 and $265.63
D.
$254.23 and $275.77
Answers
Answer:
B. $257.82 and $272.18
Step-by-step explanation:
PLATO USERS
Which inequalities have -0.5, 2.5, and 4 as part of the solution set? Select all that apply.
A.z > -3
B.z < 5
C.z < 4
D.z Less-than-or-equal-to 4
E.z > 0
Answers
it is b mark me as brainliest
Find the area of the figure shown below and choose the appropriate result.
Answers
Answer:
The answer is 39 cm squared
What is the area of 25mm circle
Answers
Step-by-step explanation:
490.87 square inches
3.4088 square feet
0.37876 square yards
3,166.9 square centimeters
0.31669 square meters
helpppp plzzzzzzzzzzzzz
I know it’s supplementary but I can’t find the value of X
Answers
Answer:
x = 18
Step-by-step explanation:
Answer:
x = 18
Step-by-step explanation:
Supplementary angles = 180°
110° + ( 3x + 16° ) = 180
110° + 3x + 16 ° = 180
126° + 3x = 180
3x = 180 - 126
3x = 54°
x = 54/3
x = 18
The area of a. square field is 100m square. what is the perimeter of the field?
Answers
answer:the Perimeter is 40m
17. You sell large and small pictures at a fair. You sell a total of 16 pictures and made a total of
$350. If large pictures sell for $25 and small pictures sell for $20. How many of each did you
sell?
Answers
Let L be large pictures
Let S be small pictures
You know they add to 16 pictures
You know each cost
(L + S = 16) * 25
25L + 20S = 350
25L + 25S = 400
Subtract (elimination method)
-5S = -50, S = 10
L + 10 = 16, L = 6
Solution: 10 small pictures
6 large pictures
Find the median of the data in the dot plot below.
Answers
Answer: 3 4 4 5 5 5 5 7 7
Step-by-step explanation:
your answer is 5 because 5 is the number in the middle
Answer please and explain
Answers
Which algebraic expression is a trinomial
Answers
Answer:
The answer is the third option
Step-by-step explanation:
Someone please help quickly and fast please! For brainliest
Estimate the perimeter and the area of the shaded figure
Show how you got your answer
Answers
Answer:
Perimeter = 16 feet
Total Surface Area = 24 sq ft.
Step-by-step explanation:
Let's assume that each square is equal to 1 foot. Using this we can estimate the perimeter and area as the following. For perimeter, we simply add all the squares distances surrounding the shaded object.
Perimeter = 16 feet (4 feet for the top and bottom and 2 feet every diagonal)
For the area, we need to calculate the area of the square in the middle and then the area of the two triangles.
Square = L * W
Square = 4 * 4
Square = 16 sq ft
Triangle = 0.5 * Base * Height
Triangle = 0.5 * 4 * 2
Triangle = 4 sq ft
Both triangles = 4 sq ft * 2 = 8 sq ft.
Now we add both area totals:
Total Surface Area = 16 + 8
Total Surface Area = 24 sq ft.
Find the standard deviation. Round to the nearest tenth.
72, 35, 46, 89, 55, 80, 27, 24, 86
A. 7.1
B. 27.3
C. 24.1
D. 25.5
Answers
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To get ready for school, Traci spent 1/20th
of an hour getting dressed and 1/10th of an
hour doing her hair. What is the total
amount of time she spent getting ready?
Give your answer in simplest form.
Answers
Answer:
3/5
Step-by-step explanation:
1/10+1/20=3/5
5 = w + 1.5
whats the answer
Answers
Answer:
w = 3.5
Step-by-step explanation:
5 = w + 1.5
5- 1.5 = 3.5
quick mathz
V + 3 = -V + 25
a. -9
b. 9
c. 11
d. -11
Answers
Answer:
c.11 is coorrect
Step-by-step explanation:
V+3=-V+25
shift same type of variables on one side
V+V=25-3
2V=22
V=22/2
V=11
Is 12.8 greater than 12.815?
Answers
Answer:
No,
12.8 = 12.800
Obviously, 12.800 < 12.815.
[tex] \infty \infty [/tex]
Answer:
[tex]12.8 < 12.815 \: \\ with \: a \:range \: of \: 0.015[/tex]
A right cylinder has a height of 8 inches and a volume of 400 cubic inches.
Which measurement is closest to the radius, in inches, of the cylinder?
A. 4
B. 8
С. 16
D. 50
Answers
Answer:
Step-by-step explanation:
its D because 400 divided by 8 is 50
[tex]\boldsymbol{4}[/tex] is closest to the radius, in inches, of the cylinder.
So, option A. is correct.
Volume of cylinderHeight of a cylinder [tex](h)=8[/tex] inches
Volume of a cylinder[tex]=400[/tex] cubic inches
Let [tex]r[/tex] denotes radius of a cylinder.
Volume of a cylinder [tex]=\pi r^2 h[/tex]
[tex]400=\frac{22}{7}r^2 (8)[/tex]
[tex]r^2=15.9\\r=3.99[/tex]
So, [tex]\boldsymbol{4}[/tex] is closest to the radius, in inches, of the cylinder.
So, option A. is correct.
Find out more information about cylinder here:
https://brainly.com/question/3692256?referrer=searchResults
Half of a circular cake is left after a party. A piece of cake with a 25° angle is eaten. What is the angle in the piece that is left?
A. 155
B. 205
C. 165
D. 145
Answers
Answer:
its 155
Step-by-step explanation:
360/2
180-25
155
The 155° angle in the piece that is left if the piece of cake with a 25° angle is eaten option (A) is correct.
What is a circle?It is defined as the combination of points that and every point has an equal distance from a fixed point ( called the center of a circle).
We have half of a circular cake is left after a party.
A piece of cake with a 25° angle is eaten.
We know the circle is a complete revolution of lines that joins from a fixed point to point at a certain distance; makes an angle 0f 360°
half of a circular cake with an angle = 360°/2 ⇒ 180°
25° angle piece eaten, then the remaining left portion:
= 180° - 25°
= 155°
Thus, the 155° angle in the piece that is left if the piece of cake with a 25° angle is eaten.
Learn more about circle here:
brainly.com/question/11833983
1/5+3/25x-3=2 3/5 it said for me to solve?
Answers
Answer: x = 45
simplify both sides of the equation.
3/25x + -14/5 = 13/5
add 14/5 to both sides.
3/25x = 27/5
multiply both sides by 25/3.
x = 45
PLEASE HELP I WILL GIVE BRAINLY I PROMISE AND NO LINKS PLEASE :)))))))))))A gardener made a scale drawing of a lawn with a scale
factor of 1:8. The dimensions of his drawing are 9 inches
long by 5 inches wide. His partner plans to make another
scale drawing of the lawn, but with a scale factor of
1:16.
What are the dimensions of this scale drawing?
Answers
Answer:
c the length is 4.5 inches width is 2.5
Step-by-step explanation:
Answer:
The anwser would be C !! The length is 4.5 inches width is 2.5 !
Step-by-step explanation:
Hope this helped!! :D
Help please and thank you if you do all of them I will mark you as Brainliest
Answers
rounded to tens: 30,190, 5,010 and 20
rounded to tenths: 62.6, 1.1, 0.0, and 270.6
rounded to hundredths: 0.12, and 98.51
HELPP ME IM FAILING IN MATH
Answers
Answer:
-2, 4
Step-by-step explanation:
a parallelogram is a shape that's lines will never cross, putting the 4th plot there would make that true
Answer:
Plot (-3,5)
I hope this is right ; -;
Math escape room level 3 clock help my answers aren’t working. Image included
Answers
Answer:
x = 6
Step-by-step explanation:
I'm not sure if it's correct
The radius of a circle is 4 kilometers. Use 3.14 for . What is the circle's circumference?
Answers
C = 3.14 x 9
C = 25.12
Pls Help! Put a proper answer! If you put a link I will report you!
When clearing the fractions in the equation below, what is the Least Common Denominator?
Answers
Step-by-step explanation:
X - ⅙X = - ½ - ⅓ ==> ⅚X = - ⅚ ==> X = -1
Are 5x + 9 - 2x = 12 and 3x = 3 equivalent equations
Answers
Answer:
Yes
Step-by-step explanation:
If you simplify the 1st equation,
5x + 9 - 2x = 12
Add like terms
3x + 9 = 12
Subtract the 9 from both sides
3x = 3
It gives you the same equation as the other one
Answer:
yes they both equal 1
Step-by-step explanation:
What is 3/8 divided by 1 1/4 in its simplest form
Answers
9514 1404 393
Answer:
3/10
Step-by-step explanation:
(3/8)/(1 1/4) = (3/8)/(5/4) = (3/8)/(10/8) = 3/10
Q) (3/8) ÷ (1 1/4) = ?
→ (3/8) ÷ (1 1/4)
→ (3/8) ÷ (5/4)
→ (3/8) ÷ (10/8)
→ (3/8) × (8/10)
→ 3/10 {final answer}
USE THEE DISTRIBUTIVE PROPERTY 3(m+6)+7(m-2)
Answers
Answer:
[tex]10m + 4[/tex]
Step-by-step explanation:
Distribute.
3(+6) + 7(−2)
3 + 18 + 7(−2)
Distribute again.
3 + 18 + 7(−2)
3 + 18 + 7−14
Subtract the numbers.
3 + 18 + 7−14
3 + 4 + 7
Combine like terms.
3 + 4 + 7
10 + 4
HELP?!!!!! Name the space figure you can form from the net.
Answers
Answer:
a or b but i think a
Step-by-step explanation: