Explanation:
Add up the dollar figures given
511.94+385.96+491.12 = 1389.02
The school raised a total of $1,389.02
Of that total, 25% will go toward the gym equipment.
25% of 1389.02 = 0.25*1389.02 = 347.255 which rounds to 347.26
Answer:
$347.255
Step-by-step explanation:
add all the sales of sixth to eight grade and multiply to .25
What is the solution to the following system of equations? (1 point) 4x + 2y = 18 x − y = 3 (−4, −1) (1, 4) (−1, −4) (4, 1)
Answer:
D. (4,1)
Step-by-step explanation:
I took the test
y- 5- 2x
0
1
2
3
4
5
i don’t get this plz help!
Answer:
y-5-2x quad y-5-2x
Step-by-step explanation:
y-5-2x
Which postulate or theorem proves the triangles below are congruent?
Answer:
he
Step-by-step explanation:
he
SAS - We have two sides (the small lines indicate this) and the angles across from each other (vertical angles) are congruent. This means the triangles are proven congruent by the SAS Congruence Postulate.
Knowing this, we can say that AAS and ASA also apply, but as it is not known until we have SAS, I believe SAS is the only "correct" answer.
(HL does not apply here as we do not have right-triangles)
Have a nice day! :)
Help, please.
A painter painted about half a room in half a day. Coley estimated the painter would paint 4 rooms in 4 days. Is Coley's estimate reasonable? Complete the explanation.
Answer:
not reasonable, half of a room per day, and 2 rooms, I hope this helps:)
can someone pls pls pls help
Answer:
4[tex]\sqrt{3}[/tex]
Step-by-step explanation:
AB = [tex]\sqrt{[(4-(-4)]^{2} - [1-(-3)]^{2} }[/tex] = 4[tex]\sqrt{3}[/tex]
Bob is buying the soccer team snacks after their game today. 8 players want cookies and 5 players want ice cream cones. If ice cream cones cost $1.25 each and cookies cost $1.75 each, how much will Bob spend on snacks for the team?
pls show steps
Answer:
$20.25
Step-by-step explanation:
8*1.75=x
x=14
5*1.25= y
y=6.25
x+y=20.25
Select the two statements that are true about the equation y−10=60(x−40).
a. The slope of the line is 10.
b. The slope of the line is 60.
c. One point on the line is (40, 10).
d. One point on the line is (10, 60).
Answer:
Options B and C
Step-by-step explanation:
The point-slope form of linear equations is y - y₁ = m(x - x₁) where: m = slope, and (x₁, y₁) represents a point on the line.
In reference to the definitions provided regarding the point-slope form: Given the linear equation, y - 10 = 60(x - 40):
The slope, m = 60, and one of the points (x₁, y₁) is represented by (10, 40).
Therefore, the correct answers are: Options B and C.
Are the ratios 15:20 and 3:4 equivalent yes or no
Answer:
Yes they are equivalent.
Step-by-step explanation:
Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20
For the 1st fraction, since 4 × 5 = 20,
3
4
=
3 × 5
4 × 5
=
15
20
Likewise, for the 2nd fraction, since 20 × 1 = 20,
15
20
=
15 × 1
20 × 1
=
15
20
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
15
20
=
15
20
or
3
4
=
15
20
Yes, we can say that the ratio 15 : 20 and 3 : 4 are equivalent.
What are ratios?The ratio is the number that can be used to express one quantity as a fraction of the other ones. The two numbers in a ratio can only be compared when they have the same unit.
Equivalent ratios are the ratios that are the same when we compare them.
Therefore, for ratios of 15 : 20 and 3 : 4, for them to be equivalent, they must have thesame value.
15 : 20 = 15/20
divide through by 5
= 3/4 = 3 :4
Therefore , we can say that ratios 15 : 20 and 3 : 4 are equivalent.
learn more about ratios from
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Which equation can be used to describe the relationship between x and y shown in the table below?
Answer:
x=+1 y=-.5
Step-by-step explanation:
Wesley spent $34.60 at the grocery store. 15% of that was spent on fruit. How much did Wesley spend on fruit?
Answer:
5.19 I'm not 100% sure if it's right tho.
Answer:
$5.19
Step-by-step explanation:
15/100 = ?/34.60
15% multiplied by 34.60 divided by 100 = $5.19
The surface area of a right circular cone is 15π in.. The cone is enlarged by multiplying both the radius of the base and the slant height by 4. What is the surface area of the new cone?
A. 80π in.
B. 120π in.
C. 60π in.
D. 240π in.
Can you pless add the process
Answer:
The surface area of the new cone is 240π inches² ⇒ answer D
Step-by-step explanation:
If the two cones are similar, then:
1. t1/t2=l1/l2=constant ratio
2. S.A1/S.A2=(R1/R2)^2
3. V1/V2=(R1/R2)3
The surface area of a right circular cone is 15π inches²
The cone is enlarged by multiplying both the radius of the base and the slant height by 4
The two cons are similar
R1/R2=1/4
The surface area of a right circular cone is 15π inches²
S.A1/S.A2=(R1/R2)^2
SO
15π/S.A2=(1/4)^2
15π/S.A2=1/16
By using cross multiplication:
15πX16=S.A2X1
240π=S.A2
The surface area of the enlarged cone = 240π inches²
The surface area of the new cone is 240π inches²
HOPE THAT HELPS!!
11. Find the Domain and Range of the following: (6.-1) (-2.2) (18,-1) (-2,3) Domain: Range: Is this relation a function?
Answer:
solution,
R={(6,-1),(-2,2),(18,-1),(-2,3)}
domain={6,-2,18}
range={-1,2,3}
domain:range is the relation a function…
Note:-
Domain is the input.Range is the output.If an relation be (x,y) then x is the domain ,y is the range .Solution:-
[tex]\\ \sf\longmapsto D_f=\{6,-2,18\}[/tex]
[tex]\\ \sf\longmapsto R_f=\{-1,2,3\}[/tex]
No it's a relation not function
Write a linear function f with f (2)=-2 and f (1)=1
Answer:
Step-by-step explanation:
f(2) = -2 means that one of the coordinates of this line is (2,-2)
f(1) = 1 means that another coordinate of this line is (1, 1)
This is because the general notation is f(x) = y
Now we use the equation y = mx + b, where we can find the slope, m, and then plug in one of the points to solve for the y-intercept, b
m = y2 - y1 / x2 - x1
m = 1 - (-2) / 1 - 2
m = -3
Arbitrarily choose one of the two coordinates to plug in to find the y-intercept. I chose (1,1) here:
1 = -3(1) + b
b = 4
Therefore, the linear function is y = -3x + 4, or f(x) = -3x + 4
Compare the quantity in Column A with the quantity in Column B.
Column A Column B
slope of y = 3 slope of x = 3
A. The quantity in Column A is greater.
B. The quantity in Column B is greater.
C. The two quantities are equal.
D. The relationship cannot be determined on the basis of the information supplied.
Answer:
D. The relationship cannot be determined on the basis of the information supplied.
Simon spent 1/4 of his wages on rent.
He spent 20% of his wages on food.
He spent 0.15 of his wages on clothes
Work out the fraction of his wages that he had left.
Answer:
2x/5 wages is remaining.Step 1: Lets say 'x' is the total wage. Then we subtract 1/4 from the total wages.
=> 4x/4 - x/4
=> 3x/4 = Remaining Wages Left.
Step 2: Subtract 20% from 3x/4.
3x/4 - x/5 = Remaining Wages Left. [20% = 20x/100 = x/5]
=> 11x/20 = Remaining Wages Left.
Step 3: Subtract 0.15x from his remaining wages left.
=> 11x/20 - 3x/20 = Remaining Wages Left. [0.15 = 15/100 = 3/20]
=> 8x/20 = Remaining Wages Left.
Step 4: Simplify
8x/20 = 2x/5 = 0.40x
=> Simon has saved 2x/5 of the wages.
Please give me brainliest :)
Answer:
2/5 of wedgesStep-by-step explanation:
The total is 100% or 1.
Spent:
1/4 + 20% + 0.15 =0.25 + 0.2 + 0.15 = 0.6Left:
1 - 0.6 = 0.4 = 4/10 = 2/5damian dilates PQR shown on the coordinate grid with a scale factor of 0.5 centered at the origin. then he translate the 1 unit up and 3 units to the right to from P' Q' R' what are the coordinates of the vertices P' Q' R'
Transformation involves changing the size and position of a shape.
The coordinates of P'Q'R' follows the transformation rule [tex]\mathbf{(x,y) \to (0.5x-3,0.5y+1)}[/tex]
First PQR is dilated by 0.5.
The transformation rule of this dilation is:
[tex]\mathbf{(x,y) \to 0.5(x,y)}[/tex]
This gives
[tex]\mathbf{(x,y) \to (0.5x,0.5y)}[/tex]
Next, the points are translated 1 unit up and 3 units right.
The transformation rule of this translation is:
[tex]\mathbf{(x,y) \to (x-3,y+1)}[/tex]
So, we have:
[tex]\mathbf{(x,y) \to (0.5x-3,0.5y+1)}[/tex]
Hence, the coordinates of P'Q'R' follows the transformation rule [tex]\mathbf{(x,y) \to (0.5x-3,0.5y+1)}[/tex]
Read more about transformation at:
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what is 74 times 98 add 65?
Answer:
7317
Step-by-step explanation:
74x98+65=7317
Answer:
7317
Step-by-step explanation:
(74*98)+65=7317
a family drives 1,000 miles per month with a ratio of highway to
city miles of 2:3. They’re looking forward to using less gas this year with their new hybrid car! Assuming it
costs $2.454 on average per gallon for gas, how much money should the family plan to spend on gas to
drive the hybrid car for a year? Please round all work to the thousandths place when working out solutions
with final answers rounded to the nearest hundredth.
Given:
high ways :
cities: [tex]1000 \times \frac{3}{5}= 200 \times 3= 600\ miles\\\\[/tex]
To find:
total cost=?
Solution:
Calculating all the gallons:
[tex]\to \frac{400}{48}+ \frac{600}{55} \\\\\to \frac{22000+28800 }{2640} \\\\\to \frac{50800 }{2640} \\\\\to \$ 19.2424 \ gallons \\\\[/tex]
Calculating the total cost:
[tex]\to \$19.2424 \times 2,454 \\\\\to \$47220.8496 \approx \$47.22[/tex]
Therefore, the final answer is "[tex]\$47.22[/tex]".
Learn more about the total cost:
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Write an equation in slope intercept form for a line that is (a) parallel (b) perpendicular to the line y = 3x-5 and has a y-intercept of 6.
Step-by-step explanation:
Given line:
y = 3x - 5We are looking for a parallel and a perpendicular line to the given with a y-intercept of 6.
a)
Parallel lines have equal slopes:
y = 3x + 6 is the parallel lineb)
Perpendicular lines have negative-reciprocal slopes:
y = -1/3x + 6 is the perpendicular linetrue or false. a dialation with a negative scale factor has the center of dialation between the pre-image and image
Answer:
It is true bc i think its turne
o
o
o
o
o
o
o
o
o
o
o
o
o
oo
Step-by-step explanation:
This wording is so weird. Why are there two maximums and minimums. What does “first maximum and minimum” mean? Which one should I use to solve for amplitude? Please help.
3.3-5.7n-3n+5
Help me
Answer:
8.3 -8.7n
Step-by-step explanation:
Maybe you want to simplify this expression.
First of all, recognize it is a sum of four terms. We use "sum" in the general sense, where the things being added can be positive or negative.
3.3
-5.7n
-3n
5
Two of these terms are regular decimal numbers: 3.3 and 5. They can be added together without any fuss: 3.3 +5 = 8.3.
The other two terms are products. One of the factors of the product is a constant, called the "coefficient" of the term. The other factor is the letter n, called a "variable".
You may recall that multiplication is a way to write repeated addition:
3×6 = 6 +6 +6
The factor 3 in this example tells you how many times 6 is included in the sum. We can combine such sums:
(3×6) + (2×6) = (6 +6 +6) +(6 +6) = (3+2)×6 = 5×6
If you replace 6 with n, the same thing is true:
3n +2n = (3+2)n = 5n
That is, we can combine terms containing n by adding their coefficients.
__
Your simplification problem then can be written as ...
3.3 -5.7n -3n +5
= (3.3 +5) +(-5.7n -3n) . . . . . . "like" terms are grouped together
= 8.3 +(-5.7-3)n
= 8.3 -8.7n
please help Use the order of operations to simplify 1/9×3^3−2(1/6+2/3)?
Answer: 1 1/3
Step-by-step explanation:
1/9×3^3 - 2(1/6 + 2/3) = 4/
3
= 1 1/
3
≅ 1.3
Answer:
4/3
Step-by-step explanation:
1/8(3³)- 2(1/6+2/3)
The angles of elevation to an airplane from two points A and B on level ground are 58° and 76°, respectively. The points A and B are 2.1 miles apart, and the airplane is east of both points in the same vertical plane. Find the altitude of the plane. (Round your answer to two decimal places.)
Answer:
90
Step-by-step explanation:
45x2=90
The equation y = -4x - 1 has a slope of __________
and a y-intercept of _______________
Answer:
Step-by-step explanation:
The general equation of any line is y = mx + b
m = slope
b = y intercept
m = - 4
b = - 1
he equation y = -4x - 1 has a slope of ___-4_______
and a y-intercept of _______-1________
simplify (9.5) (-2) (-5)
Answer:2.5
Step-by-step explanation:
Answer:
It is 95
Step-by-step explanation:
Mrs. Speas has $138 in her bank account during Week #1. At the end of each week, she deposits $55 into her bank account. What is the first term?
What is the difference?
What is the iterative rule for the amount of money Mrs. Speas has after n weeks? (you are NOT required to simplify)
Answer:
24
Step-by-step explanation:
is the answer.
The first term is 138
The difference is 55
The iterative rule for the amount of money Mr Speas has after n weeks is
55/2 n² + 221/2 n
During the first week she has $138 in his bank account. At the end of each week she deposited $55 into her bank account.
The first term will be 138 .
The common difference is 55 because her bank always increase by $55 dollars every week. The sequence will be 138, 193, 248, 303, 358...…
The difference = 193 - 138 = 55.
The iterative rule for the amount of money Mr Speas has after n weeks can be represented below
n = number of weeks
a = first term = 138
d = common difference = 55
Using AP formula,
sₙ = n/2(2a + (n - 1)d)
sₙ = n/2 (2(138)+ (n - 1)55)
sₙ = n /2(276 + 55n -55)
sₙ = n /2(221 + 55n)
sₙ = 55/2 n² + 221/2 n
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the ratio of boys to girls is 3:4 if there are 48 girls, what is the total number of sixth graders
Answer:
84
Step-by-step explanation:
The 4 part of the ratio relates to 48 girls, then
48 ÷ 4 = 12 ← value of 1 part of the ratio , then
3 parts = 3 × 12 = 36 ← number of boys
total number of students = 48 + 36 = 84
You earn $20 for washing 5 cars how much do you earn for washing 2 cars
Answer:
$8
Step-by-step explanation:
First we have to see how much you are paid per car. To do this we divide the money earned ($20), by the number of cars washed (5).
20÷5=4
This tells us you earn $4 per car. So, to find the amount you would earn buy washing 2 cars, you multiply the money earned per car by 2.
4·2=8
This means you would earn $8.
Would you please mark my answer brainliest if it helped you? :D
write the equation of the line from the given information. through (-3,5) & (4,-2)
Answer:
y = -x + 2
Step-by-step explanation:
(-3,5) and (4,-2)
Slope: (-2-5)/(4 - - 3) = -7/7 = -1
y-intercept= -2 - (-1)(4) = -2 + 4 = 2
