Answers
Answer:
m∡B = 120°
Step-by-step explanation:
base angles are equal
adjacent angles are supplementary so:
4x+20 + 3x-15 = 180
7x + 5 = 180
7x = 175
x = 25
∡B = 4(25) + 20
∡B = 120°
Answer:
39.6
Step-by-step explanation:
(3x-15)+(4x+20)+2x=360
9x+5=360
9x=355
*Divide each side by 9*
X=39.4
*SUBSTITUTE X*
3(39.4)-15=103.2
4(39.4)+20=177.6
*ADD THE TOTALS FROM ABOVE*
103.2+177.6= 280.8
360-280.8=79.2
*DIVIDE THE TOTAL BY 2*
79.2/2=39.6
*CHECK*
3(39.4)-15=103.2
4(39.4)+20=177.6
103.2+177.6+39.6+39.6=360 IS CORRECT.
Hope this helps! :)
Related Questions
sin2A + sin5A - sinA÷cos2A + cos5A + COSA=Tan2A
Answers
Answer:
That is the correct answer
Step-by-step explanation:
AND the whole solution I hope it helps to you
twice a number x, minus 16
Answers
Answer:
[tex]\huge\boxed{\sf 2x - 16}[/tex]
Step-by-step explanation:
twice a number x = 2x
minus means to subtract (-)
So, twice a number minus 16 is:
= 2x - 16
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Hey there!
Our unknown number is x.
First, "twice x" means we multiply x by 2:
2x
Then, we subtract 16:
2x-16
Therefore, the expression is: 2x-16
Hope this helps. Use the comment section to clarify your doubts.
Answered by
~A teen who helps others with a smile on her face
Good luck with your studies. :-)
at noon, a tank contained 8 in. of water. after several hours, it contained 6 in. of water. what is the percent decrease of water in the tank?
Answers
Answer: 25%
Step-by-step explanation:
To find percent decrease, you take your final number minus your initial number, over your initial number, so you start with 6-8/8, and get 2/8 or 1/4, then you multiply that by 100, so you get 25. That's your percent decrease.
what is xt8=-3 plz help
Answers
Need help ASAP! Directions and problem in picture;)
What is the value of ?
Answers
Answer:
105⁰
Step-by-step explanation:
Please refer to the attachment.
Hope it helps :)
Plz help with this question.
Answers
Answer:
[tex]Both \: the \: moon \: and \: earth \: are \: in \: \\ the \: shape \: of \: spheres. \\ Surface\: area \: of \: a \: sphere \: of \: radius \: 'r' \\ [/tex]
Let d1 be the diameter of the moon and d2 and be the diameter of the earth.Let r1 be the radius of the moon and r2 be the radius of the earth.
[tex]given \: d1 = \frac{1}{4}d2 \\ = > 2r1 = \frac{1}{4} ×2r2 \\ =>r1 = \frac{1}{4}×r2 \\ Now, \: ratio \: of \: \: their \: surface \: areas \: is: \\ = s1: s2 \\ = r {1}^{2}: r {2}^{2} \\ = {1}^{2 } : {4}^{2 } \\ =1:16[/tex]
hope it helps youAnswer:
look below :)
Step-by-step explanation:
Ok so the formula for the area of a triangle is (l x w) / 2
and the formula for the area of a square is l x w.
The area of the square is 2 x 2 = 4.
so the area of the square = 4cm²
the area of the triangle is 2 x 4 = 8.
8 / 2 = 4
so the area of the triangle is also 4cm².
Hope this helped!
Can someone please help me with this one I would appreciate it very much!! :D
Answers
Answer:
Abby will earn $510 if she works 60 hours.
Step-by-step explanation:
8 hrs --> $68
1 hr --> 68 × 1/8 = $8.5
So, 60 hrs
= 8.5 × 60
= $510
it gives you the ratio of 30:255
to get from 30 to 60, you multiply by 2
you do the same with 255 and get 510
510
EWFrtujyhytgrfeds.DFGFDS
Answers
Answer:
Reese's puffs Reese's puffs
I'm bad at math helpppppp
Answers
Answer:
2x + y = 18
y = 4x - 12
x = 5, y = 8
Step-by-step explanation:
x = 1st number
y = 2nd number
We can use the substitution method as we know what 'y' equals; that value will get plugged in for 'y' in the first equation as follows:
2x + 4x - 12 = 18
6x - 12 = 18
6x = 30
x = 5
y = 4(5) - 12 which is 20-12 or 8
y = 8
A tin of biscuits contains shortbread and choc-chip biscuits in the ratio 2:3 . The tin contains 80 biscuits. How many short-bread biscuits are there in the tin?
Answers
Answer:
32
Step-by-step explanation:
There are 80 biscuits inside the tin.
Also, they said that those biscuits are in the ratio
Short bread : Choc - chip
2 : 3
Altogether there are 5 shares ( 2 + 3)
And now you can divide 80 by 5 to find how many biscuits contain per a share.
80 ÷ 5 = 16
In the question, they asked us to to find the number of short biscuits inside the tin.
Let us find that.
There are 2 shares for short bread biscuits.
So,
Number of short biscuits ⇒ 2 × 16
⇒ 32
Hope this helps you :-)
how do you find the area of something
Answers
Answer:
multiply the length and the width of a rectangle or a square
Pls help. I need it asap
Answers
Answer:
18
Step-by-step explanation:
since the equation of AC is y=x-4 then the length of CB and AB must be the same. therefor its (6*6)/2
which translation vector moves every point of a preimage 4 units left and 6 units up?
Answers
Hope this helped :)
Determine whether the graph represents a function. *
Answers
Answer:
Not a function
Step-by-step explanation:
There are two points that correspond to the same variable
Hope this helps
Answer:
not a function
Step-by-step explanation:
There are two points that have the same x and different y values
This would fail the vertical line test.
Is -4 a real or imaginary number?
Answers
Answer:
Real number
Step-by-step explanation:
Unless it has an i with it then it's an imaginary number but because it doesn't have an i with it it's real
Answer:
real number
Step-by-step explanation:
Hi! -4 is a real number because imaginary numbers are characterized as i= sqrt -1
If you see a number with an i in it, then it is imaginary. In this case, however, we have a real number.
I hope this helps!
If you earned $1000 interest on a loan of $5200 at a yearly interest rate of 2.5%, how many years was the loan for? (Round to the nearest tenth)
Answers
Answer:
170 years
Step-by-step explanation:
R/100=2.5%
time= 100=0.025 per year (1/0.025) (5200\1000)-1=168
time=168 years
Answer: 7.7 years
Step-by-step explanation:
Total amount = Principle + Interest = 5200 + 1000 = 6200
A = P(1 + rt)
6200= 5200[1+(0.025)(t)]
6200=5200+130t
-130t=5200-6200
-130t=-1000
t=100/13
t= 7.7 years
the total cost of a watch and a radio is rs 500 .If the watch is cheaper than the radio by rs 150,find their cost
Answers
Let cost of watch=r
w+r=500
but w=r-150
So;r-150+r=500
2r=500+150
2r=650
r=650/2
r=325
If r=325,
then w+r=500
w+325=500
w=500-325
w=175
Cost of watch=rs175
Cost of radio=rs325
-6 < x - 4 < 2 solve
Answers
Answer:
- 2 < x < 6
Step-by-step explanation:
- 6 < x - 4 < 2 ( add 4 to each interval )
- 2 < x < 6
a woman runs 300 meters in 50 seconds whats her speed (show work and the formula)
Answers
Answer:
300 divided by 50=6 meters per second
Hope This Helps!!!
Step-by-step explanation:
Solution,
speed = distance traveled ÷ time taken
= 300÷50s
= 6/1
Therefore, speed is 6/1 [6 by 1]
is the expression x³·x³·x³ equivalent to x³·³·³? why or why not? explain your reasoning
Answers
Answer:
Definitely not equivalent.
Exponent rules state that whenever you multiply terms with the same power, you add the powers together and multiply the coefficients.
x^3*3*3 is equivalent to something like ((x^3)^3)^3 or x^27
x^3 * x^3 * x^3 would be x^3+3+3 or x^9
please help me What is the mode of the data shown in this stem-and-leaf plot?
Stem Leaf
1 3 7 7
2 2 4 4 4 5
3 1 5 8 9
4 0 6 7
Key: 2|1=21
Enter your answer as a number, like this: 42 and explain your answer
Answers
Explanation:
The mode corresponds directly to the most frequent leaf, ie the leaf that shows up the most. This is because the mode itself is the most frequent value of a list of numbers. Be sure to keep the rows separate. The leaf "5" shows up twice, but it's for two different stems. The leaf "7" is a similar story.
In row two, we have the leaf "4" show up three times which is the most of any leaf for any given stem. Tie that leaf to the stem 2 and we get the value 24.
The mode is 24.
A nursery has 15 bags of topsoil. Each planter holds 1/8 of a bag.
How many planters can be filled with the topsoil?
Enter your answer in the box.
|__| planters
MUST HAVE:
*Show work*
Answers
Answer:
120 planters can be filled with topsoil.
Step-by-step explanation:
Since each planter can hold 1/8th of a bag of topsoil, this means that one bag of topsoil can fill up 8 planters.
15 x 8 = 120, so this means that 120 planters can be filled with topsoil.
:)
what equation has infinite solutions
4(x+2) = 9
4(x+2) = 4x + 8
4(x+2) = 4x + 2
4(x+2) = 12
Answers
Answer:
4(x+2) = 4x + 8
Step-by-step explanation:
because if they are multiplied out it would be 4x+8 = 4x + 8 which means it is infinite because both sides are equal
4x+8=4x+8
Both side is equal no matter what.
Can anyone solve and explain part b
Answers
Answer:
Below in bold.
Step-by-step explanation:
b.
If we drop a perpendicular line from B to AC and mark the point D on AC, we have 2 right triangles, with AD = DC = 16 cm.
So tan O = BD/16 = 15/8
BD = (16*15)/8
= 2*15
= 30.
So the area of triangle ABC = 16*30
= 480 cm^2.
Which of these is a correct statement?
Answers
Mrs. Woerner went to Alaska and the temperature decreased by 13 degrees. What integer represents this situation? pls help me I give u brainliest
Answers
Answer: -13
Step-by-step explanation:
Graph A (-3.-2), B (-5,-4), and C (-3,-4)
Pls solve the problems
Answers
Graph attached
What is this 3(x+2)<4(x−2)
Answers
x>14
hope this helped
Write an equation you could use to find the length of the missing side of the right triangle. Then find the missing length. Round to the nearest tenth if necessary.
Group of answer choices
26+ 24 = a ; 35.4 in.
a + 24 = 26; 10 in.
a + 24 = 26; 2 in.
a + 24 = 26; 100 in.
Answers
Answer:
a² + 24² = 26² ; a = 10 in.
Step-by-step explanation:
a² + 24² = 26² ; a = 10 in.
((I'm not sure if your choice is wrong.))
8. What is the slope of the line that goes through (8,8) and (4, 6)?
-1/2
1/2
-2
2
Answers
Answer:
Step-by-step explanation:
Slope is the change in y over the change in x.
m = (8 - 6) / (8 - 4) = 2/4 = 1/2
Answer:
1/2
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(6-8)/(4-8)
m=-2/-4
m=1/2