Answer:
y=15
Step-by-step explanation:
y=21 - 6
y = 15
hope this helped!
Solve the system by substitution.
x = 9y
x-5y=20
Step-by-step explanation:
hope this helps you! have a great day
The solutions of the system of equations are x = 45 and y = 5.
What is the system of equations?One or many equations having the same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.
Given:
The system of equations,
x = 9y .... (1)
x-5y=20 ......(2)
Substituting the value of x from the equation 1 to equation 2,
we get,
9y - 5y = 20
4y = 20
y = 5
Then, x = 5(9) = 45
Therefore, the solutions of the equations are x = 45 and y = 5
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- Jeremy wants to enlarge his younger
brother's 5-foot by 5-foot sandbox
by multiplying its dimensions by 3.
How will the area of the sandbox be
affected?
2. What is the surface area of the triangular prism below?
The surface area of triangular prism is 281.68 square cm
What is the triangular prism?Triangular Prism is a pentahedron and has nine distinct nets. The edges and vertices of the bases are joined with each other via three rectangular sides. The sides of the triangular prism, which are rectangular in shape are joint with each other side by side. All cross-sections parallel to the base faces are the same as a triangle. A triangular pyramid has four triangular bases unlike the triangular prism, joined with each other and all are congruent to each other.
We have,
The length of triangular prism(l)=13 cm
The height of triangular prism(h)= 5.1 cm
The base of triangular prism(b)= 6.8 cm
S1, S2, and S3 are the three edges (sides) of the base triangle=6.1 cm,6.8 cm and 6.1 cm
Perimeter of base(p)=S1+S2+S3
=6.1cm+6.8cm+6.1cm
=19cm
According to question,
We know the formula of The surface area of prism=(perimeter of base× length of prism)+(2×base area of prism)
=(P ×l)+(2×[tex]\frac{1}{2}[/tex]×b ×h)
=(19×13)+(6.8×5.1)
= 247+34.68
=281.68 square cm
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Can someone please help me with math.
Apply distributive property: 5(2 + x) *
10 points
10 + x
10 + 5x
Answer:
10 + 5x
Step-by-step explanation:
Answer:
The answer is 10 + 5x.
Step-by-step explanation:
Expand by distributing term.
[tex]5 \times 2 + 5x[/tex]
Simplify 5 × 2 to 10.
[tex]10 + 5x[/tex]
Therefor, the answer is 10 + 5x.
Brenna wants to learn more about stingrays. Which of the following is a statistical question Brenna could ask?
A. Do stingrays live in oceans or rivers?
B. Are stingrays an endangered species?
C. What is the heaviest stingray ever recorded?
D. How long does a stingray live?
Answer:d
Step-by-step explanation:because that would come up with the most information from sciencetist and professors
Answer:
Probably B or A
Step-by-step explanation:
Because learning about stingrays asking a question like that can tell you how many are left and how long you have to study them while they are here. and A because you wanna get to know their surroundings and what's better for them in an environment before you actually get to know about the stingrays, studying the environment can give you an idea of what to look for when you are diving in the ocean. Meaning you know exactly what to look for when diving so you can get as much information as you need.
When I have walked 20% of the way to school, I have 1200 metres more to walk than when I have 20% of the walk remaining.
How far, in metres, is it from my home to my school?
Answer:
The house is 2000 meters from the school.
Step-by-step explanation:
Given that, when I have walked 20% of the way to school, I have 1200 meters more to walk than when I have 20% of the walk remaining, to determine how far, in meters, is it from my home to my school the following calculation has to be done:
100 - 20 = 80
80 = 20 + 1200
80 - 20 = 1200
60 = 1200
1200/60 = 20
20 x 100 = 2000
Therefore, the house is 2000 meters from the school.
65.40/w=95/100
Solve for W
Answer:
w = 68.84
Step-by-step explanation:
cross-multiply:
95w = 6540
w = 6540/95
(-6 - 4) : (-5) = ?
What is the answer to this plz help
Answer:
-10 not sure what : is
Step-by-step explanation:
helppppppppppppppppppppppppppppppp
Answer:
that link is a scam do not click on it
Step-by-step explanation:
there are people going around typing this link it guves your phone a virus
Find the sum of the first six terms of the geometric sequence.
an = 8(3)n-1
2,952
8,774
2,910
2,912
Answer:
yegegeggg
Step-by-step explanation:
hehehheeuue
Answer:
the answer is 2,912
Step-by-step explanation:
i just took the test
Use the distributive property to multiply combine like tems & find the equation
6x(6x+3)-3(6x+3)
Answer:
Solution: 36x2−9
Step-by-step explanation:
So, you always have to start with distrubuting which is basically dividing.
Heres the equation that I started with. You can do it differently of course.
36x2+18x-3(6x+3)
combine like terms.
36x2-9
, your solution will be
36x2-9
Help me with this I don’t really understand it
Answer:
Could you please help me with the two most recent questions of mine on my page? I will give u brainliest and 20 points! :))) X
Step-by-step explanation:
Type the correct answer in each box The three interior angle measures of this triangle are
x = __ °
y = __ °
z = __ °
Answer:
x=30
y=70
z=80
step by step explanation:
Ally ate 240 grapes in 6 days. Which rate below is equivalent to Ally's rate?
A. 60 grapes in 2 days
B. 60 grapes in 3 days
C. 120 grapes in 2 days
D. 120 grapes in 3 days
Answer:
D
Step-by-step explanation:
She ate 240 in 6 days or 40/day
So she would eat 120 in 3 days (40x3)
Answer:
D) 120 grapes in 3 days
Step-by-step explanation:
240/6 = 40 per day
80 in 2 days
120 in 3 days
Colton sold a total of 28 tee shirts and sweatshirts as a fundraiser for his football team. If tee shirts cost 12 dollars each and sweatshirts cost 20 dollars each and he raised a total of 424 dollars how many tee shirts did he sell?
Answer:
17
Step-by-step explanation:
Create a system of equations where t is the number of t shirts he sold, and s is the number of sweatshirts he sold
t + s = 28
12t + 20s = 424
Solve by elimination by multiplying the top equation by -20, then adding them together
-20t - 20s = -560
12t + 20s = 424
-8t = -136
Solve for t:
t = 17
So, Colton sold 17 t shirts
What is 100 km/h in mph?
Use 5 miles = 8 km.
Give your answer as a decimal
Answer:
Answer is100*5/8 = 62.5
Answer:
62.5
Step-by-step explanation:
100×5/8=125÷2=62.5
A bicycle that normally costs $450 is on sale for 20% off the original price, with an additional discount of $25.
What is the cost of the bicycle?
Answer: 335
Step-by-step explanation:
20% = 0.2
450 x .2 = 90
450 - 90 = 360
360 - 25 = 335
What is the greatest common factor of 40, 8, and 24?
Help with math please
Four people have measured the height of a wall using different methods. Their results are shown in the table. Order their measurements from least to greatest
Answer:
5/2, 2.6, 1 + sqrt(3), sqrt(8)
Step-by-step explanation:
Use a calculator:
sqrt(8) = 2.83
5/2 = 2.5
2.6 = 2.6
1 + sqrt(3) = 2.73
Answer:
5/2, 2.6, 1 + sqrt(3), sqrt(8)
Hey, if you can help me with this then please. I really need this done. :)
Answer:
97 oz.
Step-by-step explanation:
1 lb.=16oz
3+2 lbs = 5 lb's which equals to 80 oz.
then add the extra ounces 7+10 = 17
80 + 17 = 97 oz.
Answer:
D.
Step-by-step explanation:
There are 16 ounces in one pound.
3 X 16 = 48 + 7 = 55 ounces for the first book.
2 X 16 = 32 + 10 = 42 ounces for the second book.
55 + 42 = 97 ounces.
qual é a raiz quadrada de 841?
Answer:
29
Step-by-step explanation:
Convert 189 To A Decimal And Then Round Your Answer To The Nearest Whole Number (29) Is Already Rounded To The Nearest Whole Number So Your Answer Is 29
Solve by using elimination.
2x+3y=12
-4x-6y=-24
Answer:
Hi! The answer to your question is (x,4-[tex]\frac{2x}{3}[/tex])
Step-by-step explanation:
☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆
☆Brainliest is greatly appreciated!☆
Hope this helps!!
- Brooklynn Deka
☁️ Answer ☁️
2x+3y=12, -4x-6y=-24
I got:
x=x, y=4 - 2x/3
(Im not sure if I solved it correctly)
Hope it helps.
Have a nice day noona/hyung
A store is offering a discount of 15% on fishing rods what is the amount a customer will pay for a rod regularly priced at $25.00
Answer:
$21.25
Step-by-step explanation:
$25 x 0.85 = $21.25
Find the volume of the prism as pictured below with base area 10 cm2 and
h = 32 cm. Do not include units in your answer.
A number cube with the numbers 1 through 6 is rolled. Find the given probability
Answer:
1/6
Step-by-step explanation:
because there is six sides
option 2, [tex]\frac{2}{6}[/tex]
The area of a trapezoid is (1/2)h(b1 + b2). A trapezoid has an area of 50 in2. If the bases are 12 and 8 inches, what is the height?
Answer:
5 in.
Step-by-step explanation:
Given that
b1 = 12
b2 = 8
A = 50
Formula is (1/2)h(b1 + b2), on substituting
50 = 1/2 * h(12 + 8)
50 = 1/2 * h(20)
100 = 20h
h = 100/20
h = 5
The height is 5 in
Question 2 (1 point)
What is the length of a day-night cycle? Is it the same everywhere on Earth?
12 hours - yes; because the sun rises and sets in the exact same place every day
relative to Earth.
12 hours - no; because depending on where you are on Earth, you have a
different amount of sunlight.
24 hours - yes; because the sun rises and sets in the exact same place every day
relative to Earth
24 hours - no; because depending on where you are on Earth, you have a
different amount of sunlight.
Answer: 24 hours - no; because depending on where you are on Earth, you have a different amount of sunlight.
Step-by-step explanation:
The day-night cycle is a complete day or a complete rotation of the earth around its axis. This takes 24 hours which is why 24 hours is the length of a full day.
People around the world however, do not get the same amount of sunlight or darkness and this is because of where they are on Earth. Due to the way the planet is tilted on its axis, some areas see sunlight more than other in a period and others see more darkness.
Prove: An even plus an odd
equals an odd.
(2m) + (2n + 1) = 2(m + [?] + [ ]
odd
Answer:
2(m + [n)] + [1]
Step-by-step explanation:
(2m) + (2n + 1) =
= 2m + 2n + 1
= 2(m + n) + 1
= 2(m + [n)] + [1]
The simplification of the expression would be equal to 2(m + [n)] + [1].
What is a simplification of an expression?Usually, simplification involves proceeding with the pending operations in the expression.
Like, 5 + 2 is an expression whose simplified form can be obtained by doing the pending addition, which results in 7 as its simplified form.
Simplification usually involves making the expression simple and easy to use later.
An even plus an odd equals an odd.
[tex](2m) + (2n + 1)\\= 2m + 2n + 1\\= 2(m + n) + 1\\= 2(m + [n)] + [1][/tex]
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