Answer:
1,400 children attend the school
Step-by-step explanation:
If 20% is 280, we can set up a proportion to solve for how many attend the school. I will put the percentages on top and the number of children on the bottom:
-> Please note that a percentage divided by 100 becomes a decimial
[tex]\frac{20}{280}=\frac{100}{x}[/tex]
Cross multiply:
.2 * x = 280 * 1
.2x = 280
Divide both sides of the equation by .2:
1,400 children attend the school
We can check our work by multiplying 1,400 by 0.2:
1,400 * 0.2 = 280 ✓
Points X and Z are on a number line, and point Y partitions line XZ into two parts so that the ratio of the length of line segment XY to the length of line segment YZ is 1:4. The coordinate of X is 1.3, and the coordinate of Y is 3.8. What is the coordinate of Z?
Answer:
13.8Step-by-step explanation:
if Points X and Z are on a number line and point Y partition line XZ into two parts where XY: YZ = 1:4, this can be expressed as;
XY/YZ = 1/4
cross multiply;
YZ = 4XY
Also, if The coordinate of X is 1.3, and the coordinate of Y is 3.8, then the distance XY will be expressed as XY = 3.8 - 1.3
XY = 2.5
YZ = 4(2.5)
YZ = 10
Since Y is at 3.8 and YZ is 10, then coordinate Z will be YZ + Y
coordinate of Z = 10+3.8
coordinate of Z = 13.8
Jen is 52 inches tall. Sam, her younger brother, is 7 inches shorter than Jen. How tall is Sam?
Answer:
45
Step-by-step explanation:
52-7
=45
PLEASE GIVE BRAINLIEST
If you add 10 grams of sugar into 30 grams of 20 % sugar syrup, you will make ____ grams of ____% sugar syrup.
Answer:
40 grams of 40% sugar syrup
Step-by-step explanation:
20% of 30 grams = 6grams of sugar
6 grams + 10 grams = 16 grams of 40% instead of 30 now
Therefore, 40g----------100%
16g-----------40%
Answer:
40 grams of 40% sugar syrup
Step-by-step explanation:
40 grams of 40% sugar syrup
30+10== 40 g
20% sugar in 30 = 1/5 of the syrup is sugar. = 6 g of sugar
6+10 = 16g of sugar in 40 grams of syrup.
16/40=x/100
Cross multiplication
x=40
27p+41=23+p. show with steps, the final answer should be p=9/13, please show how
Answer:
9/13
Step-by-step explanation:
Everything that crossed the equal sign past with an opositive value.
41-23=18
27-p= 26
18/26
9/13
Porfavor para hoy dice el papa de Rafael va a construir una picina afuera de su casa en forma de cuadrado en el area de 121 pies cuadradas. Alrededor de la picina quiere construir una plataforma de cuatro pies de ancho, Explicale a Rafael paso apaso como calcular el perimetro de la plataforma, Despues me dice que explique paso a paso en mis propias palabras como calcular el perimetro de la plataforma
Answer:
Deducir ecuación de área del cuadrado/Despejar y calcular longitud de lado/Deducir ecuación de perímetro/Calcular perímetro del cuadrado.
Perímetro: 44 pies cuadrados.
Step-by-step explanation:
Podemos explicarle al papa de Rafael lo siguiente:
Estimado señor.
Una piscina de forma cuadrada tiene la forma de un cuadrilátero con cuatro lados iguales y cuatro ángulos rectos en sus vértices. El área del cuadrado es igual a la longitud de cualquiera de sus lados multiplicada por si misma. Es decir:
[tex]A = l\cdot l = l^{2}[/tex] (Eq. 1)
Entonces, la longitud de cualquiera de sus lados es la raíz cuadrada del área de su piscina. Es decir:
[tex]l =\sqrt{A}[/tex] (Eq. 1b)
Donde [tex]l[/tex] y [tex]A[/tex] son la longitud de lado y el área de la piscina, medidos en pies y pies cuadrados, respectivamente.
Si sabemos que su piscina tiene un área de 121 pies cuadrados ([tex]A = 121\,ft^{2}[/tex]), entonces la longitud del lado de piscina es:
[tex]l = \sqrt{121\,ft^{2}}[/tex]
[tex]l = 11\,ft[/tex]
Tenemos que la longitud del lado es 11 pies.
Ahora, el perímetro es la suma de las longitudes de los lados del cuadrado. Si el cuadrado tiene 4 lados de igual medida, entonces el perímetro del cuadrado es igual a cuatro veces esa longitud. Esto es:
[tex]p = 4\cdot l[/tex] (Eq. 2)
Donde [tex]p[/tex] es el perímetro, medido en pies.
Si conocemos que la longitud del lado es 11 pies ([tex]l = 11\,ft[/tex]). En consecuencia, encontramos que el perímetro de su piscina es:
[tex]p = 4\cdot (11\,ft)[/tex]
[tex]p = 44\,ft[/tex]
El perímetro de su piscina es de 44 pies.
JC has a VIP membership to a movie theater, so she pays $27 a year and six dollars for each movie she sees. Claire doesn't have a membership, so she pays $8.25 each movie she sees. How many movies would they have to see in a year in order to pay the same amount that year.
Answer:
12 movies
Step-by-step explanation:
Given
VIP
[tex]Base\ Amount = \$27[/tex]
[tex]Per\ movie = \$6[/tex]
Regular
[tex]Per\ movie = \$8.25[/tex]
Required
Determine the number of movies where they pay the same amount
Represent the number of movies with m.
For VIP, we have..
[tex]Expression = 27 + 6 * m[/tex]
[tex]Expression = 27 + 6m[/tex]
For regular, we have
[tex]Expression = 8.25 * m[/tex]
[tex]Expression = 8.25m[/tex]
Equate both expressions
[tex]8.25m = 27 + 6m[/tex]
Collect Like Terms
[tex]8.25m - 6m = 27[/tex]
[tex]2.25m = 27[/tex]
Solve for m
[tex]m = 27/2.25[/tex]
[tex]m = 12[/tex]
Please help with my geometry
Answer:
this is so hard what grade are you in
What is the distance between the points ‒3 and 19 on a number line?
Answer:
22
Step-by-step explanation:
19-(-3)
19+3
22
A warehouse contains 55 boxes. Then a truck delivers a number of boxes at 12:00 p.m. and the team begins to unload them immediately . by 3:30 pm, the warehouse contains 90 boxes. supposes the boxes are unloaded at a constant rate. write a formula that shows that total number of boxes in the warehouse as a function of time where Q(t) is the total number of boxes, and t is the time since noon.
I WILL GIVE BRAINLIEST!!!!!!!!!!!!!
The function that shows this situation is given by Q(t) = 3.5t + 55
What is a linear equation?A linear equation is in the form:
y = mx + b
Where y, x are variables, m is the rate of change and b is the y intercept.
Let Q(t) represent the total number of boxes, and t is the time since noon in hours.
A warehouse contains 55 boxes, hence b = 55. At 3:30 pm (3.5 hours), the warehouse contains 90 boxes.
90 = 3.5m + 55
m = 10
The function that shows this situation is given by Q(t) = 3.5t + 55
Find out more on linear equation at: https://brainly.com/question/12788590
Carla wanted to buy a new guitar. Carla deposited $200.00 into a new savings account that
earns interest compounded continuously. After 1 year, she withdrew the entire balance of
$231.00 and bought the guitar. What was the interest rate on the account?
Round your answer to the nearest tenth of a percent.
Answer:
%15.5
Step-by-step explanation:
200+(200x)=231
*x is the interest rate
so let's break down this question by going backwards. we can subract 200 from both sides since we cann easily get rid of +200. so you would get:
200x= 31
Now divide both sides by 200 to eliminate anything else, just to keep x alone.
x= 0.155
and a percent it would be %15.5
and to check:
200+(200*0.155)= 231
Which represents the distance between A(2, 3) and B(-1,-1)?
Answer:
5 units
Step-by-step explanation:
(x1, y1) =A(2,3)
(x2,y2) =B(-1,-1)
Using distance formula,
AB^2 = (x2-x1) ^2 +(y2-y1) ^2
=(-1-2)^2 +(-1-3)^2
=9+16
=25
Therefore, AB=5 units
state the set of multiples of 14
between 7 and 84 inclusive
A baseball team won 20 games and lost 10 games. What percent of the games did the team win?
Answer:66.67%
Step-by-step explanation:What percent of the games did the team win? Question 1114417: A baseball team has won 20 games and lost 10 games. What percent of the games did the team win? = 66.67%.
The point (4,200) means 4 bags contain 200 pounds of dog food.
True or false
A bridge is built in the shape of a parabolic arch. The bridge has a span of s= 140 feet and a maximum height of s= 30 feet. Choose a suitable rectangular coordinate system and find the height of the arch at distances of 10, 30, and 50 feet from the center
Answer:
_Given data: _
The bridge has a span, s = 140 feet
Maximum height of the bridge, h = 25 feet
Let the vertex is,
V
=
(
0
,
25
)
Step-by-step explanation:
Let q(x, y) be the statement "x has sent an e-mail mes sage to y," where the domain for both x and y consists of all students in your class. Express each of these quantifi cations in english
The expression of the quantifications in English will be:
There is some student in your class who has sent a message to some student in your class.There is some student in your class who has sent a message to every student in your classEvery student in your class has sent a message to at least one student in your class.There is a student in your class who has been sent a message by every student in your classEvery student in your class has been sent a message from at least one student in your classEvery student in the class has sent a message to every student in the class.What is quantification?Quantification simply means an important component of the mathematical language. The two commonly used quantifiers in mathematics are the universal quantifier (∀) as well as the existential quantifier (∃).
The expression of the quantifications in English is illustrated above.
Learn more about quantifications on:
https://brainly.com/question/4095022
Which expression can be
used to find the value of
8 x (16 4 2)
Answer:
[tex]8*16 = 128\\ or\\ 8*4 = 32\\ lastly,\\ 8 x 2 = 16[/tex]
these are the 3 ways to find the value of a multi-number parenthesis expression. Remember your PEMDAS.
PEMDAS Meaning
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
A man is paid $9.60 per hour for a 40 hour week and he is paid at a time and a half for overtime. Find how many hours of overtime he worked when his wage for a certain week was $528.00
I need help with this question
Answer: (3)
Step-by-step explanation:
A model of a house was drawn using a scale 2in= 12ft. If the model measures 10 inches in length then find the actual length of the house.
Answer:
60
Step-by-step explanation:
Because 2x5=10 and 12x5=60
Determine the equation of the Logarithmic Regression that models the data. Then use your equation to determine the amount of sunlight (%) that penetrates to a depth of
150m. Express you answer to the nearest hundredth of a percent
Answer:
Percentage of light that penetrates at 150 m will be 0.94%.
Step-by-step explanation:
By using logarithmic regression calculator,
Equation of the regression line will be,
y = 104.5173 - 20.6711(lnx)
Where x represents the depth of the ocean
And y will represent the penetration of light
Therefore, at the depth of 150 m, penetration of the light will be,
y = 104.5173 - 20.6711[ln(150)]
= 104.5173 - 103.5753
= 0.9420
≈ 0.94 %
Therefore, percentage of light that penetrates at 150 m will be 0.94%.
Number 6 and 7 please hurryyyyyyyy
When moving to the left or west, you ______ 1 for every degrees longitude
A. add
B. subtract
Answer:
You are subtracting because your going left and how I remember this is latitude flatitude it weird but thats how I remember.
The shapes nelow are shaded to show two different fraftions, Are the fractions equivalent? Use the drop down menus to best explain your answerr
Answer:
Yes they are equivalent.
Step-by-step explanation:
They each represent one half.
ratios and proportions help
Answer:
[tex]\frac{AD}{AB}[/tex] = 3
Step-by-step explanation:
from the diagram
the horizontal distance AD = 9
the horizontal distance AB = 3
[tex]\frac{AD}{AB }[/tex] = [tex]\frac{9}{3}[/tex] = 3
What are the values of w and x?
Step-by-step explanation:
Since angles opposite congruent sides in a triangle are congruent, w=67.
Now, since the sum of the measures of the interior angles of a triangle is 180 degrees, x=180-67-67=46
If I ran 10x-2 now and then ran 2x+18 tommarow how much have I ran in total
Answer:
10x-2+2x+18
=10x+2x+18-2
=12x+16
Answer:8x-16
Step-by-step explanation:
please EXPLAIN the center of this data set below
Answer:
well i don't exactly know but its best to ask your teacher for help <3
Step-by-step explanation:
Need help ASAP!!!! Been thinking for a long time.
Answer:
81%
Step-by-step explanation:
First, let's set up 3 equations:
w*0.6 = x
x*1.5=y
y*0.9=z
Now, we can substitute x in the second equation for w*0.6:
w*0.6*1.5 = y
Lastly, we can substitute y in the last equation for w*0.6*1.5:
w*0.6*1.5*0.9=z
w*0.81=z
Therefore, z is 81 percent of w.
Order the numbers from least to greatest [ -8, -6, -5, -7]
a. -5, -6, -7, -8 b. -6, -5, -8, -7 c. -7, -6, -8, -5 d. -8, -7, -6, -5
R= d) -8, -7, -6, -5.