Answer:
Number of boys who attended the community service event = 10
Step-by-step explanation:
Let [tex]x[/tex] denotes number of girls and [tex]y[/tex] denotes number of boys.
Twenty-six students attended the community service event.
So,
[tex]x+y=26[/tex]
The number of girls was 4 fewer than twice the number of boys.
[tex]x=2y-4[/tex]
Put [tex]x=2y-4[/tex] in [tex]x+y=26[/tex]
[tex]2y-4+y=26\\3y=26+4\\3y=30\\y=10[/tex]
So,
Number of boys who attended the community service event = 10
PLEASE HELP!! i’ll give brainliest!
A plumber charges $18 for transportation and $27 per hour for repairs.
Complete the expression that can be used to find the cost in dollars for a repair that takes h hours.
An expression that can be used to find the cost in dollars for a repair that takes h hours is
h.
Total = price per hour x number of hours + travel fee.
Total = 27h + 18
ABC is translated 2 units right and 1 unit down. What is the new location of point C?
A (1, −7)
B (1, −3)
C (2, −5)
D (4, −6)
Answer:
(4,-8)
Step-by-step explanation
hope it helps
Answer:
it's (4,-6)
Step-by-step explanation:
the first answer given by the other user is incorrect.
The area of the triangle whose vertices are A(-6, -2), B(-4, -6), B(-2, 5) will be
A. 15 square units
B. 36 square units
C. 24 square units
D. 12 square units
Answer:
A. 15 square units
Step-by-step explanation:
Because it is the "Correct Answer"
a) Work out (8 x 10°) * (2 x 104)
Give your answer in standard form.
Whats the standard form ?
Answer:
16640x²
Step-by-step explanation:
wait i love food sooooooooooooooooooooo much
Answer:
Me toooooooooo..!!!!!!!
find the value of x please help
using angle sum property
we get
110+35+(x+12)=180
(x+12)=180-145
(x+12)= 35
x= 35-12
x= 23
Answer:
Angles in a triangle are sum up to 180 degrees.
35 + 110 + (x+12)=180
145+x+12=180
157+x=180
x=180-157
x=23 degrees
Which of the filling units are units of length
Answer:
The SI unit for length is the meter (abbreviated m); its definition has also changed over time to become more accurate and precise. The meter was first defined in 1791 as 1/10,000,000 of the distance from the equator to the North Pole.
If I start with 3 and count by 4's until I reach 99, I get 3, 7, 11, …, 99, where 3 is the first number, 7 is the second number, 11 is the third number, and so on. If 99 is the Nthnumber, what is the value of N?
Answer:
Given variables:
a=3
d=4
Tn=99
N=?
Using the formula
Tn=a+(n-1)d
99=3+(n-1)4
96=4(n-1)
24=n-1
25=n
Therefore N=25
image down below plz help
Answer:
12 boys and 18 girls
Step-by-step explanation:
the ratio from boys to girls is 2 to 3
12/2=6
18/3=6
both equal 6 meaning that both are proportional meaning that A is the correct answer
Answer:
a.
Step-by-step explanation:
12 and 18 is equal to 2/3
(4, 6)
(-7, 2)
Find the slope
Answer:
slope = 4/11
Step-by-step explanation:
To find the slope, use delta y/ delta x
(4,6) (-7,2)
(2-6)/(-7-4)
(-4)/(-11)
slope = 4/11
Let m = slope
m = difference of y-values divided by the difference of x-values.
m = (2 - 6)/(-7 - 4)
m = -4/-11
m = 4/11
Question 4:
b
S
You and your three friends take turns taking random samples of 10 jellybeans from a jar of
800 jellybeans. All the jellybeans are returned to the jar and mixed in, before the next sample
is taken out. The table shows the number of different coloured jellybeans in each sample.
Sample
1
2
3
4
Red
6
4
5
4
Yellow
1
3
2
4
White
3
1
2
1
Green
0
2
1
1
1
a) For each sample what is the experimental probability of picking a red jellybean?
Sample 1:
Sample 2:
Sample 3:
Sample 4:
aww
Answer:
.op
Step-by-step explanation:
Johnny uses the mirror placed on level ground to measure the height of a building. Johnny's eyes are 6 feet above the ground and he stands 4 feet away from the mirror. From that distance, Johnny is able to see the top of the building in the mirror as shown in the diagram below.If the mirror is 45 feet away from the building’s base, how tall is the building?
Answer:
Step-by-step explanation:
h/45=6/4
h=45(6)/4
h=67.5ft
Jack is selling holiday ornaments and boxes of candy. Each ornament is $1.50 and
each box of candy is $3.00. Jack sold a total of 15 items for $27. How many boxes of
candy did he sell?
Answer:
x = 12, y =
Step-by-step explanation:
Let x=# of Ornaments and y=# of boxes of candy. The system of equations is:
x + y = 15
1.5x + 3y = 27
And solve via elimination
1.5 x = 18
x = 12, y =3
HAVE A GOOD DAY
Which of the following is a solution to the equation y=-1/4x+8 and please explain the steps.
A. (10, -8) C. (-4, 9) B. (4, 8 )D. (-8, -10)
Write each phrase as an algebraic expression.
n divided by 8
p multiplied by 4
b plus 14
90 times x
a take away 16
k less than 24
3 groups of w
the sum of 1 and q
the quotient of 13 and z
c added to 45
8 less than w
(please, don't say something random to get points, say the answer only.)
Anise wants to have longer hair than her sister. Her sister's hair is 2.25 feet long. How long does Anise's hair have to
be? Which graph represents the scenario?
1
2 3 4 5
-3 -2 -1 0 1
--
十十 + + +P
-3 -2 -1 0 1 2 3 4 5
O
1 1 Hot
+++
-3 -2 -1 0 1 2 3 4 5
о
+ HHH
-3 -2 -1 0 1 2 3 4 5
Answer:
The answer is B and the guy above me is correct.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
cs i'm right
(70 points)------------------
Answer:
Wait I don't understand the question... It looks like it is already answered- :(
Step-by-step explanation:
determine whether the ratios are equivalent. 4 7 and 8 11
Answer:
answer is the ratios are not equivalent or not in proportion
Step-by-step explanation:
you can find it by crops multiplication
4/7
8/11
4*11
8*7
44=56
Therefore it is not in proportion
Answer: 4 : 7 = 8 : 14
8 : 11 = 16 : 22
Step-by-step explanation:
The ratio is already in lowest terms so I found an equivalent ratio by multiplying both terms by 2.
The ratio is already in lowest terms so I found an equivalent ratio by multiplying both terms by 2.
Exercise 41
To measure the width of a river, you plant a stake on one side of the river, directly across from a boulder.
You then walk 100 meters to the right of the stake and measure a 79° angle between the stake and the
boulder. What is the width w of the river? Round your answer to the nearest meter.
Mattraimale
079
100 m
PUR
m
Answer:
514 m = width of the river to the nearest meter
Step-by-step explanation:
You must memorize the definitions of the trig functions and then these types of problems are easy.
You have a right triangle where the 100 m is the adjacent side to the 79° angle. You are looking for the side opposite the 79° angle. So, you need to use the tan function which is defined as opposite side/adjacent side
Let x = the length of the opposite side (width of river)
Tan 79 = x/100
100 tan 79 = x
x = 514 m = width of the river to the nearest meter
The tangent or tanθ in a right angle triangle is the ratio of its perpendicular to its base. The width of the river is 514.455 meters.
What is Tangent (Tanθ)?The tangent or tanθ in a right angle triangle is the ratio of its perpendicular to its base. it is given as,
[tex]\rm Tangent(\theta) = \dfrac{Perpendicular}{Base}[/tex]
where,
θ is the angle,
Perpendicular is the side of the triangle opposite to the angle θ,
Base is the adjacent smaller side of the angle θ.
As it is given that you walk 100 meters to the right of the stake and measure a 79° angle between the stake and the boulder. Therefore, using the tangent angle the width of the river can be written as,
[tex]\rm Tangent(\theta) = \dfrac{Perpendicular}{Base}\\\\\\\rm tan(79^o) = \dfrac{\text{Width of the river}}{100\ meter}\\\\\\\text{Width of the river} = tan(79^o) \times 100 = 514.455\ meters[/tex]
Hence, the width of the river is 514.455 meters.
Learn more about Tangent (Tanθ):
https://brainly.com/question/10623976
How do i solve 7/11 = 18/x+1
Which expression gives the measure of Z RST in the diagram below?
T
u
S
38
V
162
R
A. 162° + 38°
B. 162° -38°
c. Ż(162° - 38°)
O D. (162° + 38°)
Answer:
Your answer should be C. 1/2(162 - 38)
Step-by-step explanation:
work out the equation of the line which has a gradient of 2 and passes through the point (1,4).
Answer:
y = 2x + 2
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope (gradient) and c the y- intercept )
Here m = 2 , then
y = 2x + c ← is the partial equation
To find c substitute (1, 4) into the partial equation
4 = 2 + c ⇒ c = 4 - 2 = 2
y = 2x + 2 ← equation of line
Answer: y=2x+2
Step-by-step explanation:
Write an expression that is equivalent to 3 (2x + 6y)
Answer:
6x+18y
Step-by-step explanation:
Answer:
6x + 18y or 6 (x + 3y)
Step-by-step explanation:
Distribute the 3 or divide the parentheses by 2
ASAP i need help with this. I will give you brainlist
Part A
Students at Sunnyside Middle School are selling tickets to the annual talent show. Below is a table showing ticket prices for students and adults.
Talent show ticket prices
Student Price $3
Adult Price $5
What amount of money would be collect if 60 students and 30 adults bought tickets? Show or explain how you got your answer.
Part B
For this part define s and a as follows:
S= number of students tickets purchased
A= number of adult tickets purchased
The total of all tickets sold was $625.00. Write an equation in items like of s and a to represent this information
Part C for this part define a and a as follows:
S= number of adult tickets purchased
A=number of adults tickets purchased
The total number of students and adults who bought tickets is 165. Write an equation in terms of a and a to represent this information.
Part D
Using the information in parts (b) and (c), determine the following:
The number of students who bought tickets
The number of adults who bought tickets
Show or explain how you got each of your answers.
PLS HELPPPPPPPPP I DONT GET IT
Answer:
c
IT was pretty easy
Write the equation of the line below in slope-intercept form.
Find the y-intercept of each line defined below and compare their values
Answer:
They are 8 units apart, and the y-intercept of line A is above the x-axis by 6 units, and line B is below the x-axis by 2 units
Step-by-step explanation:
Remember your y-intercept has an x value of zero, so line B has a y intercept of (0,-2)
now let's find b in the original equation so
y - 8 = -2x - 2 so y = -2x -2 + 8, so y = -2x + 6
So line A has a y-intercept of (0,6)
They are 8 units apart, and the y-intercept of line A is above the x-axis by 6 units, and line B is below the x-axis by 2 units
what's
[tex]25\% \: \: of \: \: 200[/tex]
Step-by-step explanation:
50 is the answer I
jjsndn
Solve for x.
2x-2=-12
please help
Answer:
-5
Step-by-step explanation:
2x=-10
x=-5
Answer:
x = -5
Step-by-step explanation:
2x - 2 = -12
(Add 2 on both sides)
2x - 2 (+2) = -12 (+2)
(simplify)
2x=-10
(Divide by 2 on both sides)
2x/2 = -10/2
(Simplify)
x = -5
Hope this helps :)