Sara and Melissa are best friends. Sara is 3 years older than
Melissa. Their combined age is 15. How old is Sara?
ΟΑ. 12
OB. 9
ОC. 3
OD. 6
A government in which the ruling power is in the hands of one person is
solve the system of equations y=5x y=x^2+4
answer:(1,5) and (4, 20)
Which value for x satisfies the equation 3x – 6 = 15?
Ο Α. 3
O B. 7
O C. 18
O D. 27
Answer:
15-6=9
3÷9=3
Step-by-step explanation:
so it is A because if you ever see that just subtract the one number in front of the equal sign then divide the number beside the x.
Solve the following system of equations graphically on the set of axes below.
y = 3x - 3
y = -2+1
Steven deposited $3500 into a savings account for 2 years at 3% compounded daily. How
much will the savings account have in it at the end of that time?
Answer:
5600
Step-by-step explanation:
Given the figure, what is the m ZAOB?
C
25°
D
A
46
Answer:
C is may answers
I HOPE IS HELPS
Can I please have help with question 2) a and b
Answer:
[tex]\frac{10\sqrt{6} }{3}[/tex] and [tex]\frac{11\sqrt{3} }{3}[/tex]
Step-by-step explanation:
(a)
A = [tex]\frac{1}{2}[/tex] × 4[tex]\sqrt{2}[/tex] × [tex]\frac{5}{\sqrt{3} }[/tex]
= 2[tex]\sqrt{2}[/tex] × [tex]\frac{5}{\sqrt{3} }[/tex]
= [tex]\frac{10\sqrt{2} }{\sqrt{3} }[/tex] × [tex]\frac{\sqrt{3} }{\sqrt{3} }[/tex] ← rationalise the denominator
= [tex]\frac{10\sqrt{6} }{3}[/tex] units²
(b)
Using Pythagoras' identity in the right triangle
let hypotenuse be h , then
h² = (4[tex]\sqrt{2}[/tex] )² + ([tex]\frac{5}{\sqrt{3} }[/tex] )²
= 32 + [tex]\frac{25}{3}[/tex]
= [tex]\frac{96}{3}[/tex] + [tex]\frac{25}{3}[/tex]
= [tex]\frac{121}{3}[/tex] ( take the square root of both sides )
h = [tex]\sqrt{\frac{121}{3} }[/tex] = [tex]\frac{11}{\sqrt{3} }[/tex] × [tex]\frac{\sqrt{3} }{\sqrt{3} }[/tex] ← rationalise the denominator
h = [tex]\frac{11\sqrt{3} }{3}[/tex]
(12x-22) (10x-6) (7x+18)
if you click the image it will show you how to solve the equation. and give you the answer.
Please help
I know this isnt a question but I have act in a few days and I've been doing remote learning online for all of 11th grade and I've been failing because of it, I just don't know what to do :(
Im a c/b average student and because of this year and my home life and me starting a month late I was set up to fail really, I do 3-4 hours every day even weekend (sometimes i can only do 2) but I feel like I'm gonna fail and ive never failed before.
Is there anything I can do or anything I can study for the act?
4.
In a rectangle the ratio of length to width is
3:1. What is the width of the rectangle if
its length is 12 cm?
I NEED HELP NOW FAST PLEASE THE CORRECT ANSWER I AM ONLY IN FORM 1
Answer:
i need help please with my maths
Step-by-step explanation:
Tyra spends a total of $33 for three T-shirts. Each T-shirt costs the same amount of money.
Which bar model could be used to show this situation?
3
Х
Х
O
Х
33
3
O
Х
33
33
о
Х
3
Х
Х
Х
33
Answer:
number 4/the last option
Step-by-step explanation:
this is because each individual Tshirt = X. and we already know that we have 33$ to spend
An air hockey puck is shot off the score zone of an air hockey table, banked off the side, and into the opponent’s score zone. Its path can be modeled by the absolute value function shown. Use the graph of the function to complete the statement.
The puck changes direction at .
The puck goes into the opponent’s score zone located at , because the graph is .
Answer:
The puck changes direction at
✔ (25, 0)
The puck goes into the opponent’s score zone located at
✔ (50, 20)
because the graph is
✔ symmetric
Step-by-step explanation:
i got it right
Answer:
A) (25,0) B) (50,20) C) Symmetric
Step-by-step explanation:
got it 100% right jus took the test....
A snowstorm lasted for three days. During the storm, 8 inches of snow fell on the first day, 6 inches of snow fell on the second day, and 9 inches of snow fell on the third day. Altogether, how many feet of snow fell during the three-day snowstorm? Write your answer as a mixed number. During the snow storm _____________ feet of snow fell. In mixed number
Answer: [tex]2\ \frac{5}{9}\ ft[/tex]
Step-by-step explanation:
Given
Snowfall on the first day is 8 inches
Snowfall on the second day is 6 inches
Snowfall on the third day is 9 inches
Also, 1 ft= 12 inches
Total snowfall is
[tex]\Rightarrow 8+6+9=23\ in.[/tex]
Converting inches to feet
[tex]\Rightarrow 23\ in.\approx \frac{23}{9}\ ft\ or\ 2\ \frac{5}{9}\ ft[/tex]
A rectangle has an area of 12x²+17x-5mm². For what value of x is the rectangle a square? What is the area of a square? Justify your answer and show your work. A=12x²+17x-5mm²
Answer:
23mm
528 mm^2
Step-by-step explanation:
The area of a rectangle is given as the product of its length and width.
Given that 12x²+17x-5mm² is the area
factorize
12x²+17x-5 = 12x²+20x -3x-5
= 4x(3x+5)-1(3x+5)
= (3x+5)(4x-1)
For the rectangle to be a square, it means that the sides 3x+ 5 and 4x - 1 are equal. Hence
3x + 5 = 4x -1
collect like terms
3x - 4x = -5 -1
-x = -6
x = 6
substitute into the sides
3x + 5 = 3(6) + 5 = 23
4x -1 = 4(6) - 1 = 23
The area of the square which is a product of the sides
= 23 * 23
= 529
1/2x13x6=?
What is this? I need help!
Sarah took the advertising deparſment from her company on a round trip to meet with a potential client. Including Sarah a total of 11 people took the trip. She was
able to purchase coach tickets for $240 and first class tickets for $1100. She used her total budget for airfare for the trip, which was $6080. How many first class
tickets did she buy? How many coach tickets did she buy?
Answer:
Sarah bought 7 coach tickets and 4 first class tickets.
Step-by-step explanation:
From the information provided, you can write the following equations:
x+y=11 (1)
240x+1100y=6080 (2), where:
x is the number of coach tickets
y is the number of first class tickets
In order to find the value of x and y, first you have to solve for x in (1):
x=11-y (3)
Now, you have to replace (3) in (2) and solve for y:
240(11-y)+1100y=6080
2640-240y+1100y=6080
860y=6080-2640
860y=3440
y=3440/860
y=4
Finally, you can replace the value of y in (3) to find the value of x:
x=11-y
x=11-4
x=7
According to this, the answer is that Sarah bought 7 coach tickets and 4 first class tickets.
Find the measure of the arc or angle indicated
Find the measure of angle PQR
a) 248°
b) 53°
c) 65°
d) 72°
A vacation resort offers surfing lessons and parasailing. If a
person takes a surfing lesson and goes parasailing, she will pay
a total of $175. On Friday, the resort collects a total of $3,101 for
activities. How much does each activity cost?
After solving the equations, the cost of parasailing will be 99.75 and the cost of surfing will be equal to 75.25.
What is an Expression?Mathematical actions are called expressions if they have at least two terms that are related by an operator and include either numbers, variables, or both.
Adding, subtraction, multiplying, and division are all reflection coefficient operations. A mathematical operation such as reduction, addition, multiplication, or division is used to integrate terms into an expression.
The given information in the question is,
Assume the cost of parasailing is x and the cost of surfing is y.
x + y = 175
Total number of people in Parasailing = 16 people
Total number of people in Surfing = 20 people
Total collection done by resort = $3,101
16x + 20y = 3,101
So, the equations will be,
16x+20y=3,101 (i)
x + y = 175 (ii)
Now, multiply the equation (ii) by 16 and solve the equation,
16x+20y=3,101
16x+16y= 2,800
4y = 301
Now, find the value of y,
y = 301/4
y = 75.25
Then, the value of x will be equal to,
x + y = 175
x+75.25 =175
Solve for x:
x=175-72.25
x = 99.75
To know more about expression:
https://brainly.com/question/14083225
#SPJ2
It seems that your question is not complete, the complete question should be:
A vacation resort offers surfing lessons and parasailing. If a person takes a surfing lesson and goes parasailing, she will pay $175. There are 16 people who go parasailing and 20 people who take surfing lessons. On a Friday, the resort collects a total of $3,101 for activities. How much does each activity cost?
Help me with this!!! Will mark Brainliest
Answer:
no
Step-by-step explanation:
Answer: No
Step-by-step explanation: plz mark me brainliest. EF are 5 lengths away from each other and FG is 15 so no
Cheryl writes 7 fewer posts than Kevin on a social media site. Answer the questions to write an algebraic expression. Then evaluate the expression for the given value, 1. Choose a variable to represent the number of posts Kevin writes. Explain why you chose this variable. 2. Which operation ( addition, subtraction, multiplication, or division ) applies to this situation? Justify your choice. 3. Use your variable and the operation you identified to write an expression for the number of post Cheryl wrote. 4. If Kevin wrote 21 post, how many did Cheryl write.
Answer:
17
Step-by-step explanation:
7. A cylinder and its dimensions are shown below. -18 cm 13.5 cm Which measurement is closest to the lateral surface area of the container in square centimeters? O A 763 cm? O B. 3435 cm? O C. 1272 cm? • D. 3281 cm?
Answer:
A 763cm
Step-by-step explanation:
please help if u can like fast too
Answer:
-3-x=27
Step-by-step explanation:
Answer:
x= -30
Step-by-step explanation:
Multiply both sides of the equation by -1
Move the constant to the right
Now calculate x= -27-3
:)
PLSSSSSSSS HELP URGENT
Answer:
C
Step-by-step explanation:
180 - 118 = 62
Hopefully this helps- let me know if you have any questions
3b + 5
question : What is the value of the following expression of b=4?
Answer:
17
Step-by-step explanation:
3 x 4 = 12 + 5 = 17
Please tell me the equation of the line below in slope intercept form
Answer:
y=3/2x+2
Step-by-step explanation:
i hope this helps :)
I’ll really appreciate it if you help me out on this one .
Answer:
21 is the value of x (you add the sides up)
Step-by-step explanation:
Answer:
1. 6x+15
2. x=5
Step-by-step explanation:
Since the triangle has sides that are the same, we know that 15 is one side and since 15/3 = 5 so x=5. Also for perimeter you add all the sides so 3x+3x+15 and add like terms so you get 6x+15.
what can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?
============================================================
this is a riddle I know the answer but I just want to see peoples answer :)
Answer:
A river?
Step-by-step explanation:
please help asap will mark brainliest
Answer:
B: y= -2/7 x - 1/5
Step-by-step explanation:
Slope-Intercept Form equation: y=mx+b
m = slope
b = y-intercept
y = mx + b
y = -2/7 x + (-1/5)
need done asap please
Answer:
6. 12/13 7. 4/3
Step-by-step explanation:
6) cos = adj/hyp
opp ∠C = 5
adj ∠C = 36
hyp = 39
cosC = 36/39 = 12/13
7) tan = opp/adj
opp ∠C = 36
adj ∠C = 27
hyp = 45
tanX = 36/27 = 4/3
