Answer:let the original number of boys be x
x:2x=1:2
x+2:2x+2=5:9
9x+18=10x+10
x=8
2x=16
Step-by-step explanation:
Find the area of this semi-circle with radius,
r
= 61cm.
Give your answer rounded to 1 DP.
Answer:
692.7cm²
Step-by-step explanation:
A = πr²/2 = 220.5 * π [cm²] ≈ 692.72 [cm²]
Please Help, Thanks!!
An expression is shown:
(4,215) (0.12)
What is the value of the expression?
Answer:
505.8
Step-by-step explanation:
4215x0.12=505.8
for which value will the equation have only one solution:x=10
Answer:
I think its this
Step-by-step explanation:
x=380=2632≈26.6
Please Answer the 3 questions in the picture
1.Proportional reasoning compares ratios to answer questions. We can use proportional reasoning to solve some questions directly, such as which size of laundry detergent is the cheapest per load, or what the dimensions of the model car should be.
3.The question is how many ways
There are as a many ways to solve a math problem as you can think of.(Some are shorter or easier than others.)
Essentially, an innfinite number.
sorry I have no idea other questions
1. In diagram below, POTU is a circle and |SR|=|ST|. Find.r.
Answer:
i think 100 is a required answer.
Expand the following:
a) x(x + 2)
b) x(2x - 5)
c) 2x(3x + 4)
d) 6x(x - 2y)
a) x²+2x
b)2x²-5x
c)6x²+8x
d)6x²-12xy
IF YOU ANSWER YOU ARE THE BEST
Answer:
yellow
Step-by-step explanation:
im not sure what its asking so im guessing what the point is
Daniel ran 5 kilometers in 40 minutes. Andy ran 4,550 meters in 37 minutes. Who ran faster?
PLEASE GIVE ME EXPLANATION
Answer:
Daniel
Step-by-step explanation:
Daniel ran 5000/40=500=4=125 meters in 1 minutes
Andy ran 4550/37=122.9729... some less than 123 meters in second
Daniel was faster than Andy
if triangle abc is similar to triangle edc find the value of x
Answer:
x = 15
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
[tex]\frac{BC}{DC}[/tex] = [tex]\frac{AC}{EC}[/tex] , substitute values
[tex]\frac{3x-5}{32}[/tex] = [tex]\frac{5x-5}{56}[/tex] ( cross- multiply )
56(3x - 5) = 32(5x - 5) ← distribute and simplify both sides
168x - 280 = 160x - 160 ( subtract 160x from both sides )
8x - 280 = - 160 ( add 280 to both sides )
8x = 120 ( divide both sides by 8 )
x = 15
What does the fact that the expressions are equivalent mean?
Answer:
The fact that the expressions are equivalent means that for any value of the variables, the two expressions have the same solution.
Step-by-step explanation:
Answer:
if they have the same value irrespective of the value of the variable(s) in them
Which equation is NOT written in slope-intercept form?
Answer and Explanation
__________________________________________________________
B) 2x - 5 = 2y + 14
__________________________________________________________
slope intercept form: y = mx + b
__________________________________________________________
B) 2x - 5 = 2y + 14 is the only answer choice that does not isolate y, and place all other terms on the other side; therefore, is your answer.
__________________________________________________________
Hope this helps! <3
__________________________________________________________
A dog kennel charges $40 to board a dog for one night and $35 per night each night after that. Henry
paid a total of $215 for dog boarding. For how many nights did Henry board his dog?
Answer: 6 nights
Step-by-step explanation:Step-by-step
Minus 40 from 215 then divide it by 35
The area of a square is given by the formula A=s, where s is the length of the side. What is the area of the square shown?
Answer:
a^4b^2
Step-by-step explanation:
s represents one side, or a^2b
so if s^2=A and s=a^2b then A=(a^2b)^2 or a^4b^2
Mr. Howard entered a canoe race. He rowed 3 1/2 miles in 3/4 hour. How many miles can he row in one hour???
Answer:
9 miles per hour
Step-by-step explanation:
Apply the distributive property using the greatest common factor to write an equivalent expression.
Enter your answers in the boxes.
0.3x – 2.7 =T0-0)
Step-by-step explanation:
0.3x = (0.3)(x).
2.7 = (0.3)(9).
Between the 2 terms, the GCF is 0.3.
Hence,
0.3x - 2.7
= (0.3)(x) - (0.3)(9)
= 0.3(x - 9).
hii I really need help!!
sorry if it’s kinda long lol.
question:
Sonia has two packages of hamburger meat. The first package weighs 1.76 pounds and the second package weighs 2.29 pounds. She mixed the two packages together and forms hamburgers that weigh 0.25 pounds each. What is the greatest number of 0.25-pound hamburgers Sonia can make using the hamburger meat she has?
Answer:
16
Step-by-step explanation:
2.29+1.76=4.05
4.05/0.25=16.2
round down to 16
you would have a little extra but you would only be able to make 16 .25 pound ones
Tamu ran 30 minutes and burned 170 calories. PART A: Which equations can be used to find the average number of calories, c, burned per minute? *
Answer:
÷
Step-by-step explanation:
I would divide 30 minutes by 170 and it should give you exactly how many calories that is burn per minute .
A Web music store offers two versions of a popular song. The size of the standard version is 2.8 megabytes (MB). The size of the high-quality version is 4.1
MB. Yesterday, there were 1600 downloads of the song, for a total download size of 5624 MB. How many downloads of the high-quality version were
there?
Number of high-quality version downloads:
Answer:
Number of high quality version downloads = 880
Step-by-step explanation:
Let,
x be the number of standard version songs downloaded
y be the number of high quality version songs downloaded
According to given statement,
x+y=1600 Eqn 1
2.8x+4.1y=5624 Eqn 2
Multiplying Eqn 1 by 2.8 to eliminate x
2.8(x+y=1600)
2.8x+2.8y=4480 Eqn 3
Subtracting Eqn 3 from Eqn 2
(2.8x+4.1y)-(2.8x+2.8y)=5624-4480
2.8x+4.1y-2.8x-2.8y=1144
1.3y=1144
Dividing both sides by 1.3
[tex]\frac{1.3y}{1.3}=\frac{1144}{1.3}\\y=880[/tex]
Hence,
Number of high quality version downloads = 880
Which mesure of central tendency represents the average data point?
A) mode
B) mean
C) median
D) range
Answer:
mean is correct option it will
Answer:
It will be B. mean
Step-by-step explanation:
Hope this helped have an amazing day!
solve x
4x-5 /5 = 3
Answer:
x = 1
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
4x−
5
5
=3
4x+−1=3
4x−1=3
Step 2: Add 1 to both sides.
4x−1+1=3+1
4x=4
Step 3: Divide both sides by 4.
4x
4
=
4
4
x=1
please help me !!:)))
Answer:
on
Step-by-step explanation:
Solve for t. 5 (t + 3) = -3.5 Enter the answer in the box.
Answer:
i believe its 3t + 5 = -3.5
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiihi
Answer:
HIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
Step-by-step explanation:
how are you
A rectangular prism is 1 inch long and 2 inches wide. Its volume is 12 cubic inches. What is the height of the rectangular prism?
Answer: 6 inches
Explanation:
12 = 1(2)h
12 = 2h
12 ÷ 2 = 2h ÷ 2 (isolating the H term)
6 = h
SOMEONE PLEASE HELP ME WITH THIS!!!!! ITS GEOMETRY
Answer:
KG = 7 (A)
m KIH = 28 (B)
m JIH = 96 (D)
m HKI = 68 (B)
m KJI = 84 (C)
Step-by-step explanation:
Notice that the triangle HKJ is identical to HIJ. Since there are lines drawn to each other and both triangles are identical, the lines KG and GI are the same. This means that it is 7.
The triangle KGJ is identical with IGH. Using the recognise angle property, we know that angle JKI is the same as KHI. This means that it is 28.
Angle JIH is the same as angle JKH. Since JKH is 180 - (KHI or 84), we know that the angle JIH is 96.
We can find angle HKI by subtracting 96 by 28 because we know that angle HKI is the same as JIH. This gives us 96-2 8 = 68.
Angle KJI is the same as KHI which is 84. Therefore, KJI is also 84.
Are 2(x + 1) and 2x + 1 equivalent expressions? explain.
I’m not in a hurry, take your time.
Answer:
Yes
Step-by-step explanation:
When you simplify 2(x+1). [MULTIPLY]
It comes 2x+1 so it is equivalent to 2x+1
Yes, 2(x + 1) and 2x + 1 are equivalent algebraic expression.
Given that,
To determine whether the 2(x + 1) and 2x + 1 are equivalent expressions.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Let
y = 2 (x + 1) - - - - - -(1)
z = (2x + 1) - - - - - (2)
from equation1
y = 2 (x + 1)
using the PEMDAS rule, applying operation on the parenthesis 1st as distributive property,
now,
y = 2x + 1
Since the outcome of the equation is equal to equation 2.
Thus, 2(x + 1) and 2x + 1 are equivalent algebraic expression.
Learn more about simplification here:
https://brainly.com/question/12501526
#SPJ2
What is the area of the real object that the scale drawing models?
Scale factor: 1:6
Area =
15 square cm
Scale drawing
Object
O A. 90 square cm
B. 15 square cm
C. 180 square cm
O D. 540 square cm
Answer: 10 ft = 10(12) = 120 inches. Area = length x width. Area = 96(120) = 11520 sq. in. An 8 inch square = 8 x 8 = 64 sq. in. 11520 divided by 64 = 180 tiles.
Step-by-step explanation:
Answer:
its 540
Step-by-step explanation:
Felicia earns $1,200 a month. The table displays her monthly budget
Answer:
No table shown
Step-by-step explanation:
(f +g)x= g(x)+ f (x)
Is the this true or false?
Answer:
True
Step-by-step explanation:
Answer:
True
Step-by-step explanation:
This is true by definition.
Joanie has two 12-inch long wood pieces and two 16-inch-long wood pieces. What is the combined length of the wood pieces?
A. 28 inches
B. 32 inches
C. 56 inches
D. 192 inches