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
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
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:
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
The area of a. square field is 100m square. what is the perimeter of the field?
Answers
answer:the Perimeter is 40m
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.
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
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
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
//////////////////
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
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
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 ; -;
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
Find the area of the figure shown below and choose the appropriate result.
Answers
Answer:
The answer is 39 cm squared
HELP?!!!!! Name the space figure you can form from the net.
Answers
Answer:
a or b but i think a
Step-by-step explanation:
Answer please and explain
Answers
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
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
Which algebraic expression is a trinomial
Answers
Answer:
The answer is the third option
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}
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
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
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
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
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]
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
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
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
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
Will give Brainliest!
2x2(69.4 x 2)
Answers
Answer:
555.2
Step-by-step explanation:
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