helppppppppppppppppp
Solve these simultaneous equations: 3x = y and x = y - 16
Answer:
x=8
y=24
Step-by-step explanation:
3x=y
x=y-16
Substitute y for 3x
x=3x-16
Add 16 to each side
x+16=3x
Subtract x
16=2x
Divide each side by 2
8=x
y=3x=3×8=24
y=24
Here we have been given with two equations and we have to calculate the values of x and y. So we would be using substitution method for it.
3x = y (Equation No 1)x = y - 16 (Equation No 2)Here we can clearly see that value of y is 3x. So we would substitute it in Equation No 2.
>> x = y - 16
>> x = 3x - 16
>> x - 3x = -16
>> -2x = -16
>> 2x = 16
>> x = 16 / 2
>> x = 8
★ Finding out value of y:-
>> y = 3x
>> y = 3 (8)
>> y = 3 × 8
>> y = 24 [tex] \: [/tex]
Please help!! I will give brainliest!
Answer:
Hope this helps you a little
Step-by-step explanatio
its 2nd one (nice pfp jucie wrld is a legend)
This is an isosceles right triangle.
The hypotenuse has a length of 1.
Find the length of each leg.
Answer:
Step-by-step explanation:
if we have a right triangle, and isosceles
c^2=a^2+b^2 , in this case of isosceles, a=b
c^2=2a^2
1^2=[tex]\sqrt{2a^2}[/tex]
1=a[tex]\sqrt{2}[/tex]
a=1/[tex]\sqrt{2}[/tex]=[tex]\sqrt{2}[/tex]/2
Simplify cot θ sec θ.
Answer:
csc θ
Step-by-step explanation:
cot θ sec θ can be substituted by reducing the expression into equivalent parts.
cot θ = (cos θ)/(sin θ)
sec θ = 1/(cos θ)
Reduce these two values to get 1/(sin θ)
This expression can then be changed to csc θ, as it is also equivalent.
The trigonometric expression cot θ × sec θ in the simplified form will be cosec θ.
What is trigonometry?Trigonometric functions examine the interaction between the dimensions and angles of a triangular form.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
The expression is given below.
⇒ cot θ × sec θ
We know that cot θ = cos θ / sin θ and sec θ = 1 / cos θ, then we have
⇒ cot θ × sec θ
⇒ cos θ / sin θ × 1 / cos θ
⇒ 1 / sin θ
We know that 1 / sin θ = cos θ
⇒ 1 / sin θ
⇒ cosec θ
The trigonometric expression cot θ × sec θ in the simplified form will be cosec θ.
More about the trigonometry link is given below.
https://brainly.com/question/22698523
#SPJ2
Yoshi multiplied -6.2 by -0.14. His result was -0.868. Which statement likely describes the error he made in his calculation?
Yoshi did not apply the order of operations.
Yoshi applied the rules of signed numbers incorrectly.
Yoshi placed the decimal point in his answer in the wrong place.
Yoshi estimated, but he did not find the actual answer.
Answer:
Yoshi applied the rules of signed numbers incorrectly
Step-by-step explanation:
When you multiply 2 negatives, you get a positive.
Match the letter to the correct action taking place.
Answer:
Box 1 is A (top box)
Box 2 is B (middle box)
Box 3 is C (lowest box)
I am not taking computer science, so I am just using visual clues... If this is not worth a lot in your grade, making mistakes is okay. So, you can guess.
m∠R=140 and m∠S=100. Find the m∠T. The diagram is not on the scale.
Answer:
m<T = 20°
Step-by-step explanation:
m<R = 140°
m<S = 100°
The figure given is a kite. The angles formed where two unequal sides meet are always congruent to each other. This means:
m<S = m<U = 100°
Sum of all interior angles of a quadrilateral = 360°
Therefore:
m<T = 360° - (m<S + m<U + m<R)
m<T = 360° - (100° + 100° + 140°) (substitution)
m<T = 20°
Evaluate 10b + 3c, if b=3 and c = 11.
Answer:
63
Step-by-step explanation:
10 × 3 = 30
3× 11 = 33
30 + 33 = 63
II. Work out questions
6. A survey was conducted by
asking 120 students in a town
how they traveled to school.
The following pie chart shows
the result of the survey.
What are the number of students
that travel to school by bus?
Best Answer gonna have branliest
Answer:
(a) Since, the highest central angle 120⁰ is of the bus
hence , the most common mode of transport is the bus.
(b) Fraction of children travelling by car =
angle covered by car section
--------------------------------------------
total angle
= 90⁰ 1
--------- = ---------
360⁰ 4
(c) No. of children travelling by car = Fraction of children travelling by car× Total no of children.
1
= 18 = ----- × Total no. of children.......from(b)
4
⇒ Total no of children = 18×4
⇒ Total no of children = 72
(d) Central angle of children who do not take texi = 120⁰ +90⁰ +60⁰+60⁰
⇒ Central angle of students who do not take taxi = 330⁰
⇒ Central angle of students who do take taxi = 360⁰ −330⁰ =30⁰
30⁰
No . of children travelling by taxi = --------- × Total no of children
360⁰
30⁰
⇒ No of children travelling by taxi = --------- × 72 = 6
360⁰
(e) The central angle for students travelling by cycle and those who walk is same.
Thus , the two modes of transport are equal number of children travelling are cycle and walk.
Step-by-step explanation:
hope it's helpful to you
have a great day ahead buddy✌️✌️☺️☺️
Using the common denominator of 56, what is an equivalent fraction for 3/8 and 3/7?
Answer: [tex]\frac{3}{8}[/tex]=[tex]\frac{21}{56}[/tex] [tex]\frac{3}{7}[/tex]=[tex]\frac{24}{56}[/tex]
Step-by-step explanation:
In order to get from 8 to 56, we have to multiply by 7.
We always do the same to the top! 3 multiplied by 7 = 21.
In order to get from 7 to 56, we have to multiply by 8.
We always do the same to the top! 3 multiplied by 8 = 24.
Solve the inequality: −6x+12≤36
Answer:x is less then or equal to -4
Step-by-step explanation:tiger algebra said so and its never wrong
Answer:
from what i know its a
Step-by-step explanation:
Pls help ASAP!!!!!!!!
Pls help
I will cash app if I get it right
Answer:
39 degrees
Step-by-step explanation:
97+44= 141
141 - 180 = 39
5 Clear 1 Petrov ran 7 laps around a track. Each lap around the track is a distance of mile. What is the total distance Petrov ran in feet? A 9,240 ft 3,017 ft 1,327 ft 36,960 ft
Answer: 36,960 ft
Step-by-step explanation:
Each lap around the track was a mile in distance.
Petrov therefore ran a total of 7 miles.
A mile is 5,280 feet.
If Petrov ran 7 miles in total, this distance in feet is:
= 7 * 5,280
= 36,960 ft
Compare these ratios
1.2:5 and 1:1
2. 0:5 and 100:1
3: 100:1 and 1:100
Answer:
ți-am dat răspunsul ce tot vrei ?
Answer:
Hiiiiiii
Step-by-step explanation:
how are you?
how can you solve 25% of 44 both mentally and with pencil and paper?
Answer:
Solving it mentally :-
It says 25% × 44. When we have a percent, change it to decimal and solve which would be easy to do it mentally.
25% = 0.25
0.25 × 44 = 11 *Answer is bolded.*
Solving it on paper :-
I have attached a picture of me doing it on paper.
Hope this helps, thank you :) !!
please help
what’s the answer for 6,7,8?
12(6) 1/2(7) and 1(8) I think
I need help on this
Step-by-step explanation:
it is 0.7777777778 . make sure you round it though 0.7^. or 0.78
Answer:
7/9
Step-by-step explanation:
1) Put 1 over 7, like this: 7/1
REMEMBER EVERYTIME THERE IS A WHOLE NUMBER! PUT A 1 OVER IT!
2) You would get your equation as this: 7/1 * 1/9
3) Multiply HORIZONATLY!
7 * 1 / 1 * 9 = 7/9
4) Your answer is 7/9!
Sarah rolls a fair dice 156 times how many times was Sara expect to roll a number greater than two
Answer:
130 times
Step-by-step explanation:
156÷6=26
156-26=130
Find the value of x
*giving brainliest*
Answer:
I think is x=13.5
Step-by-step explanation:
Answer:
i think 13.2 but not sure
Lydia guessed there were 180 jelly beans in a container. There were actually 220 jelly beans in the container. What was Lydia's percent error? (solve the same way as percent of change but the actual amount is the denominator)
Answer:
around 82% correct 12% incorrect or 9/11 correct 2/11 incorrect!
Step-by-step explanation:
11111111111111111111111
Answer:
1) Zero based on (-16·t - 2) is t = -1/8 second
2) Zero based on (t - 1) is t = 1 second
Step-by-step explanation:
The given functions representing the height of the beach ball the child throws as a function of time are;
y = (-16·t - 2)·(t - 1) and y = -16·t² + 14·t + 2
We note that (-16·t - 2)·(t - 1) = -16·t² + 14·t + 2
Therefore, the function representing the height of the beachball, 'y', is y = (-16·t - 2)·(t - 1) = -16·t² + 14·t + 2
The zeros of a function are the values of the variables, 'x', of the function that makes the value of the function, f(x), equal to zero
In the function of the question, we have;
y = (-16·t - 2)·(t - 1) = -16·t² + 14·t + 2
The above equation can be written as follows;
y = (-16·t - 2) × (t - 1)
Therefore, 'y' equals zero when either (-16·t - 2) = 0 or (t - 1) = 0
1) The zero based on (-16·t - 2) = 0, is given as follows;
(-16·t - 2) = 0
∴ t = 2/(-16) = -1/8
t = -1/8 second
The zero based on (-16·t - 2) is t = -1/8 second
2) The zero based on (t - 1) = 0, is given as follows;
(t - 1) = 0
∴ t = 1 second
The zero based on (t - 1) is t = 1 second
Noralie has a home-based business putting on children’s parties. She charges $45 to design the party and then $5.50 per child. Write a function rule that relates the total cost of the party to the number of children n.
f(n) = 5.5 – 55n
f(n) = 5.5n – 55
f(n) = 5.5 + 45n
f(n) = 45 + 5.5n
Answer:
The answer would be C because n is the number of children and it costs $5.50 per child plus an extra design fee of $45
Step-by-step explanation:
Design = $45
rate per child = $5.50
number of children, x
total cost, f(x) = $5.5x + $45
Jesse has a ribbon that is 12 4.6 yards long. He wants to cut it into pieces that are 1.4 yards long. How many 1.4 yard pieces will he get from the ribbon? will mark brainliest if you mark one here you will be reported just to get the points
Answer:
89 pieces
Step-by-step explanation:
124.6/ 1.4 = 89 pieces
Help pleaseeeeeeeeee
Answer:
24
Step-by-step explanation:
Answer:
Since ang AOC is a straight line-
180-156=x
x=24
(All straight lines are always 180°)
Hope it helps
T/F Given that a transversal intersects 2 parallel lines corresponding angles are always congruent.
Answer:
oof
Step-by-step explanation:
blah blaj
Renting a jet ski at Jerry's Water sports cost $20.00 per hour plus a one-time fee of $8.00. Renting jet skis from splash of fun costs $25.00 per hour with no one-time fee. the cost to rent a jet ski depends on the total number of hours, h, rented. How many hours must you rent a jet ski for the cost to be the same at jerry's water sport and at splash of fun?
Answer:
1.6 hours
Step-by-step explanation:
The computation of the number of hours is shown below:
For water sports
= 20x + 8
And,For splash of fun
= 25x
Now the cost of both would be same
i.e.
20x + 8 = 25x
8 = 5x
x = 1.6 hours
Please help me solve this
Answer:
x = 15
Step-by-step explanation:
we know that the total degree inside of a triangle made up of 180°
6x + 4x + 2x = 180
12x = 180
x = 15
To find each angle we multiple 4x , 6x, 2x by 15
4(15) = 60°
6(15) = 90°
2(15) = 30°
Answer:
soln,
2x+6x+4x=180°( being s of the angle of triangle is 180°)
12x=180°
X= 180°/12
X= 15
again,
2x=2×15. 6x= 6×15. 4x=4×15
2x=30. 6x=90. 4x=60
Step-by-step explanation:
Hope you like my answer
y = -3x+ 5
y = x - 3
(-2,-4)
(2,-1)
an infinite number of solutions
