Answer:
Step-by-step explanation:
each person represents 5%. so 45% are girls. 45/5 is 9, so 9 are girls. 20 minus 9 is 11 so 9 girls and 11 boys
The number of girls is 9 and the number of boys is 11.
Important information:
Total number of students = 2045% of total students are girls.Percentage:Using the given information, the number of girls is:
[tex]20\times \frac{45}{100}=9[/tex]
Now, subtract the number of girls from the total number of students.
[tex]20-9=11[/tex]
Therefore, the number of girls is 9 and the number of boys is 11.
Find out more about 'Percentage' here:
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Which binomials are factors of x2−8x−48? Select the two correct answers.
x + 4
x−6
x−4
x + 6
x−12
x−8
x + 12
x + 8
Answer:
(x - 12)(x + 4)
Step-by-step explanation:
The two numbers have equal the b term which is -8
You know you have to subtract to get your answer because there is a minus sign in front of the c term
Find what factors of 48 subtract to = -8
-12 + 4 = -8
I'm failing math pls help
Looking at the linear equation, y= 4x-2, identify which is your independent variable and which is your dependent variable.
Answer:
option b
Step-by-step explanation: i took this test and got 100
PLEASEE SOMEONE ANSWER ILL DO ANYTHING ANYTHING PLEAASEEE HELP ME this is myh 6th time posting this ;[
Answer: the third one
Step-by-step explanation:
Please helppp number 11
Answer:
(1/3)⁷
Step-by-step explanation:
negative exponents work like this:
x⁻²=(1/x)²
Apply this theory to this equation:
3⁻⁷=
(1/3)⁷
what is the 8th term of the geometric sequence 8,16,32
the 8th term of the geometric sequence 8, 16, 32 is 1024
Explanationwe know that
geometric sequence 8, 16, 32
the question is
the 8th term
the answer is
first we have to find the ratio
[tex] \sf r= \frac{ U_2}{U_1} \\ \sf r= \frac{ 16}{8} \\ \sf r = 2 [/tex]
than, we have to find the 8th term
[tex] \sf U_n = ar^{n-1} \\ \sf U_8 = 8 \times 2^{8-1} \\ \sf U_8 = 8 \times 2^7 \\ \sf U_8 = 8 \times 128 \\ \bold {\sf U_8 = 1024} [/tex]
Learn moreAbout geometric pattern
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Answer detailsgrade: 7th
subject: mathematics
chapter: sequence
keywords: geometric sequence
10 2/7 to improper fraction
Answer:
72/7
Step-by-step explanation:
the area of a small square is 25 square units what is the exact length in units of a single of a large square
Answer:
5
Step-by-step explanation:
The area of any quadrilateral can be determined by multiplying the length of its base by its height. Since we know the shape here is square, we know that all sides are of equal length. From this we can work backwards by taking the square root of the area to find the length of one side.
Solve the following system of equations.
3 x + 2 y − 5 = 0
x = y + 10
Answer:(5,-5)
Step-by-step explanation:
Graphing these two equations means that they intersect at the point (5,-5)
Simplify: ( 1^0+2^1+3^2) ÷ 22/ 5^0
Step-by-step explanation:
( 1 + 2 + 9 ) ÷ 22/ 1
12 ÷ 22
6 ÷ 11
cc: Anything raised to the power of zero is 1
Answer:
6(1/11)
Step-by-step explanation:
( 1^0+2^1+3^2) ÷ 22/ 5^0
( 1+2+9) ÷ 22/ 5^0
( 1+2+9) ÷ 22/ 1
( 1+2+9) • 1/22
12 • 1/22
6(1/11)
Hope this helps!
Just curious what is 52 x 34 - 342
Answer:
1426
Step-by-step explanation:
52 x 34 = 1768
1768 - 340 = 1426
In the figure above, rectangle V'W'X'Y' is a dilation of rectangle VWXY. What is the scale factor of the dilation?
A. 0.25
B. 2
C. 343 fourths
D. 14
Answer:
D. [tex] \frac{1}{4} [/tex]
Step-by-step explanation:
Given that rectangle V'W'X'Y' is a dilation of rectangle VWXY, this means that the dimensions of rectangle VWXY was reduced by to get the dimensions of V'W'X'Y'.
Therefore, the ratio of any segment of V'W'X'Y', to a corresponding segment of VWXY would be equal to the scale factor.
W'X' = 5
WX = 20
Therefore:
Scale factor = [tex] \frac{5}{20} = \frac{1}{4} [/tex].
A scale factor that is a fraction tells us that the original figure reduced in size resulting into another new figure whose sides are of proportional lengths to the original figure.
In other words, the original figure was compressed go form a new figure.
If the vertex of a parabola is (- 3, 4) and the parabola has a stretch of 3find the next two points on the parabola right the vertex
Answer:
Step-by-step explanation:
Need help asap please
5 x 2 = what pls
Which graph below represents the linear inequality y ≥ 5/2x - 4?
A.)
B.)
C.)
D.)
Answer:
I believe graph B.) I hope this helped u :)
Step-by-step explanation:
Hi, may I get some help?
Answer:
First add the number of bags. Then make sure you the percent of the total of each weight.
Step-by-step explanation:
if you rlly want to know the answer its
4+10+20+24+18+6 bags is 82
4 is 4.8 percent of 82
10 is 12.1 percent of 82
20 is 24.3 percent of 82
24 is 29.2 percent of 82
18 is 21.9 percent of 82 and
6 is 7.3 percent of 82
so answer a is 40 pounds and less
29.2+24.3+12.1+4.8=70.4 percent so its wrong
so answer b is wrong too
answer c is 29.2+21.9+7.3=58.4 so its right but we have to check d
answer d is 4.8+12.1=16.9 so its wrong
THE ANSWER IS C
and may i pwetty please have brainly crown
Sam and Taylor own and operate a car wash service. Sam cleans the interior of each car and Taylor cleans the exterior. The time it takes Sam to finish the interior has a mean of 20 minutes with a standard deviation of 6.4 minutes. The time it takes Taylor to finish the exterior has a mean of 18 minutes with a standard deviation of 4.8 minutes. Both of their finishing times are approximately normally distributed.
Suppose we select a car at random, and define the random variable D as the difference between their finishing times. We can assume that their times are independent.
Find the probability that they finish within 10minutes of each other.
You may round your answer to two decimal places.
P\left(|D|<10\right)\approxP(∣D∣<10)≈P
Answer: 0.77
Step-by-step explanation:
Khan academy answer
Hello People, so i am stuck on this and i would really LOVE if you helped me, and if you do you would get alot of points and even brainliest!
Answer:
-2.5 is the answer to this question
Answer:
so you put an arrow on -3 and then a arrow on or between 4 and 5 that will be 0.5
Step-by-step explanation:
pls mark me brainliest
Ms. Guthrie spent 80% of her cash on gifts.
What fraction of her cash did she spend on gifts?
She spent type your answer...
of her cash on gift.
Answer:
She spend (8/10) or (4/5) of her cash on gift.
Step-by-step explanation:
4/5 is simplified.
but not simplified its 8/10
I need help can someone help please !!
At every company meeting, the president speaks for 28 minutes and then takes questions from her employees. Let q represent the number of minutes she spends answering questions and t represent the total number of minutes the meeting lasts.
Answer:
t = 20 + q in minutes
Step-by-step explanation:
Company meeting = president speech + questions + answers
President speech = 20 minutes
Questions and answers = q minutes
Total time spent = t minutes
Total time spent = President speech + Total time spent
t = 20 + q
The equation that represents the relationship between q and t is
t = 20 + q in minutes
A road is made in such a way that the center of the road is higher off the ground than the sides of the road, in order to allow rainwater to drain. A cross-section of the road can be represented on a graph using the function f(x) = (x – 16)(x + 16), where x represents the distance from the center of the road, in feet. Rounded to the nearest tenth, what is the maximum height of the road, in feet?
0.1
Answer:
2
Step-by-step explanation:
i answered this
Kristopher has a coupon for $10 off any item at his favorite electronics shop. If he plans to use the coupon to purchase and item that costs $80, by what percentage will the price be decreased before tax?
Answer:
12.5%
Step-by-step explanation:
Kristopher has a coupon for $10 off any item at his favorite electronics shop. If he plans to use the coupon to purchase and item that costs $80, by what percentage will the price be decreased before tax?
The formula for Percentage Decrease =
Decrease in price/ Initial price × 100
Decrease in price = $10
Initial price = $80
Hence:
$10/$80 × 100
= 12.5%
Hence, the percentage the price will be decreased by before tax is 12.5%
The price of milk increased from $2 to $2.50.What is the percent of the change for the price of the milk.
Answer:
20%
Step-by-step explanation:
im just built different
PLs HELPPpppPPPppppPPp
13 points + brainliest pls help!!
Either send the answers or fill in the pdf using doc hub or pdf escape pls dont answer if u dont know this is really srs to me : )
Answer:
I could tell you that the fist second and third would be < > <
Step-by-step explanation:
Find the slope of the line in the image.
someone plz helpppp
Answer: The answer I got is -2/4 Hope this help :)
Step-by-step explanation:(-2,6)(2,4)
M=y2-y1
x2-x1
4-6 = -2
2-(-2) = 4
The slope is -2/4
Answer:
-1/2
Step-by-step explanation:
Because the line segment is going from left to right down it is negative. From the end point on the it goes down 1 and over 2 consistently.
Consider the enlargement of the triangle.
A small triangle has a base of 1.7 feet and height of 9.3 feet. A larger triangle has a base of 3.5 feet and height of x feet.
Not drawn to scale
Rounded to the nearest tenth, what is the value of x?
15.8 feet
19.1 feet
23.3 feet
32.6 feet
Answer:B 19.1 feet
Step-by-step explanation:
The value of the x is 19.1 feet.
What is ratio?"It is an ordered pair of numbers a and b, written [tex]\frac{a}{b}[/tex] where b does not equal 0."
What is proportion?"When two ratios are equal then they are said to be in proportion."
For given question,
A small triangle has a base of 1.7 feet and height of 9.3 feet.
A larger triangle has a base of 3.5 feet and height of x feet.
Since it is the enlargement of the triangle, the sides of both the triangle must be in proportion.
[tex]\Rightarrow \frac{1.7}{3.5}= \frac{9.3}{x}\\\\\ \Rightarrow 1.7\times x=3.5\times 9.3\\\\ \Rightarrow 1.7\times x=32.55\\\\ \Rightarrow x=19.14[/tex]
Therefore, the value of the x is 19.1 feet.
Learn more about the ratio and proportion here:
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Which of the following is the factored form of the expression 18 + 12?
6(3 + 2)
thats the answer
Answer:
30 the answer to it question
Kareem cannot decide which of two washing machines to buy. The selling price of each is $480. The first is marked down by 30%. The second is marked down by 20% with an additional 10% off. Find the sale price of each washing machine. Use pencil and paper. Explain why Kareem should buy the first washing machine rather than the second if the machines are the same except for the selling price.
Answer:
1. $336
2.$345.6
Step-by-step explanation:
First off the first machine is cheaper because of the 30% off of the total price rather than 20 off the price then another 10 percent off that price.
mine says marked down by 30. then 10. then 20
HELP DUE SOON!!!Elise says, "If you subtract 14 from my number and multiply the difference by - 4, the result is
- 100." What is Elise's number?
Elise's number is
Answer:
39
Step-by-step explanation:
If you subtract 14 from my number and multiply the difference by -4, you should get -100.
You need to setup the equation that is being given to you.
Subtract 14 from my number.
x - 14
Multiply the difference by -4
(x-14) * -4
You should get -100.
(x-14) * -4 = -100
Solve for x
(Elise's number is X, the missing number).
[tex]-4(x-14) = -100\\-4x+56 = -100\\-4x=-156\\x=39[/tex]
Elise's number is 39.
Need help ASAP!!!! :)
Answer:
B. All real numbers
General Formulas and Concepts:
Algebra I
Domain is the set of x-values that can be inputted into function f(x)Step-by-step explanation:
According to the graph, we see that the line's x-values span from negative infinity to infinity. Therefore our domain encapsulates all real numbers.