Answer:The ratio of the number of children who can swim to the number of children who cannot swim=2:1
Step-by-step explanation:
Number of children that can swim = N umber of boys and girls that can swim =23+17 =40
Number of children that cannot swim = N umber of boys and girls that cannot swim=9+11=20
=40:20
=2:1
Given: ⅓ (18x + 27) = 81 Prove: x = 12
Answer:
Firstly, rewrite the equation:
⅓ (18 + 27) = 81
Substitute x for the given number of it's supposed equivalent.
In this case x = 12.
⅓ (18(12) + 27) = 81
Solve using PEMDAS and simplify what is in the parenthesis first. Then, multiply.
(18 x 12) + 27 = 243
Now, solving using PEMDAS, multiply the total of what you got that was originally in the parenthesis by ⅓ .
⅓ (243) = 81
When you multiple these number they are equivalent to 81.
81 = 81
Since the equation given, when substituted x for 12, is equivalent to 81, this proves that substituting x for 12 makes this equation true.
Solve the following quadratic equation using the quadratic formula.
Write the solutions in the following form, where r, s, and t are integers, and the fractions are in simplest form.
Answer:
x = (8-6i)/10
x = (8+6i)/10
Step-by-step explanation:
. Jacob and Sadie each got ahead on their skills practices. Jacob completed twelve fewer problems than twice the number Sadie completed. They completed a total of 127 problems. Which system of equations models this situation if Jacob completed j problems & Sadie completed s problems? A) j + s = 127
Answer:
2s-12=j
S+J=127
Step-by-step explanation:
ok so firstly you are going to have 2 problems. Jacob has 12 fewer than 2x Sadie's so it will look like this, 2s-12=j
. 2x Sadie's minus 12 will give you Jacobs. and then it tells you that together they have 127 completed so S+J=127
hope this helps!!
564000 in scientific notation
Answer:
5.64 × 10^5
Step-by-step explanation:
Marissa bought 60 horns for her New Year’s Eve party for $83.40. She needs to purchase an additional 18 horns for the party at the same unit rate. Choose True or False for each statement.
Marissa will spend $1.49 for each horn.
Marissa will spend $25.02 on the new horns.
Marissa will have a total of 78 horns.
Marissa will spend a total of $108.42 on horns for the party
Answer:
False
True
True
True
WILL GIVE BRAINLIEST! (Please hurry)
Which algebraic expression has like terms?
A. 9n3 - 2n+ 3 - 4n2
B. 7n3 + 3n - 3 - 6n2
C. 7n3 + 4n - 3n3 - 5n2
D. 6n3 - 4n4 + 6n - 5n2
Answer:
B!!
Step-by-step explanation:
Answer:
b! is the answer :):):):)
Find the area of each figure.
Please help!! I usually don’t ask for help I’m having trouble.
[tex]1) \: \: 28 \times 30 {cm}^{2} = 76 {cm}^{2} \\ 2) \: \: 2(19 + 39) \times 16 = 1856 {cm}^{2} \\ 3) \: \: 15 \times 16 {cm}^{2} = 240 {cm}^{2} \\ 4) \: \: 10 \times 24 {cm}^{2} = 240 {cm}^{2} [/tex]
hope it helps you ❣❣
Mark me as brainliest
For the past several years, the high school theater department has performed a musical in their auditorium. Each year since the first, they have raised ticket prices by $0.25, however the department has also noticed a decline in the number of people attending each year. This year, they are analyzing the ticket prices, attendance, and sales to determine the ticket price that maximizes their sales.
Noah says that 9x−2x+4xis equivalent to 3x, because the subtraction sign tells us to subtract everything that comes after 9x.
Elena says that 9x−2x+4xis equivalent to 11x, because the subtraction only applies to 2x.
Who is correct? And why are they correct?
Group of answer choices
Elena
Noah
Can someone help me with this please?
Answer:
the function is linear
Step-by-step explanation:
now you figure this out in many ways,
but the easiest is to plot the points on a Cartesian x-y plane, rule a line through the points,if it's in a straight line then its linear if it's a curve its cubic
from the question, after plotting your points.ie (-9,-2),(-5,-7),(-1,-12),(3-17)
we get a straight line pointing downwards.
I hope this is convenient enough
a. What is the circumference of the
largest circle that can be cut from a
square measuring 30 cm on a side?
Use 3.14 for Pie
b. What percent of the perimeter of the
square is the circumference of the
circle?
Answer:
a) 94.2 cm
b) 78.5%
Step-by-step explanation:
a) since the square side = 30 cm
it means the diameter = 30 cm
then circumference of the largest circle that can be cut = 3.14×30 = 94.2 cm
b) the perimeter of the square = 30×4 = 120
94.2 for 120
x% for 100%
x = (100×94.2)/120 = 9420/120 = 942/12 = 78.5%
Simplify
5 x 5^2
leaving your answer in index form.
Answer:
5^3
Step-by-step explanation:
5 x 5^2 = 5^3
Answer: 5^3
Step-by-step explanation: hope this help
Given d(t) = -2t^2 - 3t + 13, what is the
value of d(-3)?
A) d(-3) = 4
B) d(-3) = 40
C) d(-3) = 58
D) d(-3) = -14
Answer:
I'm pretty sure b is the answer
A new car is purchased for 23900 dollars. The value of the car depreciates at 9.25% per year. To the nearest tenth of a year, how long will it be until the value of the car is 6000 dollars?
9514 1404 393
Answer:
14.2 years
Step-by-step explanation:
The value is described by the exponential function ...
y = (initial value)·(decay factor)^x
where y is the value after x years.
The decay factor is (1 - annual depreciation) = 1 - 0.0925 = 0.9075, so we want to find x when ...
6000 = 23900·0.9075^x
6000/23900 = 0.9075^x . . . . . . . . . . . . . . divide by 23900
log(6000/23900) = x·log(0.9075) . . . . . . . take logarithms
x = log(6000/23900)/log(0.9075) ≈ 14.2396
It will be about 14.2 years until the value of the car is $6000.
Answer:
14.2
Step-by-step explanation:
SEE
igle is 180
VX
Given: yll z
Prove: mZ5+ m2 2 + m26 = 180°
Angles Lines Stateme
Reasons
21
21
23
25
26
m21
m23
L
m 25
A
m26
M
1
2 3
Y
Statements
Reasons
4
5
6
7
Z
С
B
Assemble the proof by dragging tiles to
the Statements and Reasons columns
Answer:
igle is 180
VX
Step-by-step explanation:
AB
MA
B
F
с
AAB=BC,AM=MC
BM IAC , EF I BC1.38371248486|ᡕᠵ᠊ᡃ່࡚ࠢ࠘ ⸝່ࠡࠣ᠊߯᠆ࠣ࠘
4 ft
diameter =
Circumference
=
Area =
diameter (d)= 2r=2*4=8ft
Step-by-step explanation:
circumference =2πr
=2 *4*22/7
=25.14 ft
also
Area=πr^2
=4^2 *22/7
50 .28 sq ft
Answer:
Diameter: 8ft
circumference: 25.12
area: 50.24 square feet
Step-by-step explanation:
radius is 4ft
Diameter is 8ft
circumference 2×pi×radius
2×3.14×4
25.12
area (pi)radius^2
3.14×(4)^2
3.14×(16)
50.24
50 square feet
Screenshot below, please help
Answer:
Angles 2 and 5
Step-by-step explanation:
The first choice is wrong because they are not equivalent to each other
HELP WILL GIVE BRAINLIST IF CORRECT!!!
Under her cell phone plan, Morgan pays a flat cost of $55.50 per month and $4 per gigabyte. She wants to keep her bill at $71.90 per month. How many gigabytes of data can she use while staying within her budget?
Answer:
4.1
Step-by-step explanation:
You would first subtract 55.50 from 71.90 which leaves you with 16.4,
Then you would divide 16.4 by 4 to find how many gigabytes she could use which gives you 4.1
Hope this helped
Answer:
4.1
Step-by-step explanation:
Can you please help me solve for x for this triangle please!!
Answer:
See below, please!
Step-by-step explanation:
Since this triangle is a right triangle, the two acute angles are always going to be complementary (adding up to 90 degrees). So we can set up an equation: 2x+3x+5=90. Solve this and we get x=17.
Hope this helped!
The oil pump can move 84.25 gallons of oil every minute. How much will the oil move in an hour?
Answer:
5,055 gallons per hour
Step-by-step explanation:
You must multiply 84.25 by 60 because an hour is 60 minutes therefore your answer is 5,055 gallons per hour. Hope that helps!
Answer:
5,055
Step-by-step explanation:
there is 60 minutes in a hour soo...
84.25 x 60 = 5,055
In the given figure, m∠TPA = m∠PQC = 135°. Which one of the following postulates proves the lines AB and CD are parallel?
Answer:
The correct answer is "A" I just took the test trust me
Step-by-step explanation:
Which of the following statements are equivalent to the statement
"price increased by 100%"?
Choose all correct answers.
(A) The price doubled
(B) The price is 150% of the price before
(C) The price was reduced by a quarter
(D) The price became a half of what it was before
(E) The price is now 1.5 of what it was before
(F) The price now is 662 % of what it was before
3
(G) The price now is 200% of what it was before
(H) The price is 75% of what it was before
The given statement "price increased by 100%" is same as the price doubled.
What is the meaning of price increased by 100%?The price increased by 100% means that the price becomes double of the initial number.
Given is the statement as -
"price increased by 100%"
The given statement "price increased by 100%" is same as the price doubled
Therefore, the given statement "price increased by 100%" is same as the price doubled.
To solve more questions on price increased, visit the link -
brainly.com/question/30098550
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I’m a bit slow, help please
HELP. DUE AT 11:59!!!!! PLEASE
Solve for x
(-4x + 4).-3= 24
answer:27
because -4 +4 = 0 x -3= -3 +27= 24
Which value is a solution of the inequality 1/4 y
_ >8
The function g is defined by g(x) = 3x - 5.
Find g (2x).
in this figure prove that cd//ef
Answer:
1) 36 + 50 = 86 : Addition property of equality
2) m<D = m<ADB : If two angles have the same measure, then they are equal.
3) <D congruent to <ADB : if two angle are equal, then they are congruent.
4) <D, <ADB are alternate interior angles: assumed from diagram
5) CD // AB : if alternate interior angles are congruent, then the 2 lines cut by a transversal are //.
6) 130 + 50 = 180 : addition property of equality
7) m<E, m<BAE are supplements : if the sum of two angles equal to 180, then they are supplements.
8) <E, <BAE are same-side interior angles : assumed from diagram
9) EF // AB : if same-side interior angles are supplements, then the 2 lines cut by a transversal are //.
10) CD // EF : if two lines are // to the same line, then they are //.
im pretty sure this is the proof
Please answer I will give BRAINLIEST if i can
Answer:
Glass A holds the most, It holds more than glass B because of its cone shape.
Step-by-step explanation:
I hope I helped you, now have a good day and good luck!! ;)
Are these shapes similar or congruent?
Answer:
Congruent
Step-by-step explanation:
Hope this helps you!!