Answer:
x=20
Step-by-step explanation:
(12+6)/(8+x-4) =6/8
18/(x+4)=6/8
6(x+4) =(18)(8)
(x+4) =(18)(8)/6
x+4 =(3)(8)
x+4=24
x=-4+24
x=20
Need help on these please
Answer:
1)16(x+y) is not equal to 4x+12y, it is equal to 16x+16y
2)2x^2-y+5+3 is not equal
3)3x & 3y
4)15x+15
5)commutative
please help 20 points !!!! right answers please
Answer:
0.6 inch
Step-by-step explanation:
The volume of a sphere is calculated through the equation,
V = 4πr³/3
Which means that the radius is calculated by the equation,
(3V/4π)^(1/3) = r
Substituting,
Sphere A, (3x30/4π)^(1/3) = r = 1.927 in
Sphere B, (3x10/4π)^(1/3) = r = 1.336 in
When we subtract the radius, we get an answer of 0.59 inch. Therefore, the answer to this item is approximately 0.6 inch.
This is to help me study for a math exam. Anyone that takes advantage of the points will be reported. Thank you!
Answer:
2) (see image below)
3) x = 8
side(s) = 74
4) x = 10
EF = DE = 67
base = 31
Step-by-step explanation:
For No. 2, if you draw out two triangles with the corresponding angles, you can make it a lot easier. See the image below:
For No. 3, it is given that it's an equilateral triangle, meaning all sides and angles are congruent. So:
12x – 22 = 10x – 6 = 7x + 18
Instead of using all three at once, you can use any two. I'll be using:
12x – 22 = 10x – 6
2x = 16
x = 8
Plugging x in, we can get all the sides, because this is an equilateral triangle:
12x – 22
12(8) – 22
96 – 22
74
For No. 4, it is given that the triangle is an isosceles triangle where DE ≅ EF, so:
8x – 13 = 5x + 17
3x = 30
x = 10
Plugging in x for one of the congruent sides and the base, you can get your needed side length values:
8x – 13
8(10) – 13
80 – 13
67
x + 21
10 + 21
31
What is the slope of the line that passes through the points (-4,5) and (0, -5)? Choose the BEST answer!
m = -10/4
m = -5/2
m= 0
m = 5/2
Answer:
m= -5/2
Step-by-step explanation:
formula for slope(m) : ΔY/ΔX (change in y coordinates - change in x coordinates)
change in y coordinates: 5-(-5) = 10
change in x coordinates: -4-(0) = -4
10/-4 = -5/2= -2.5
15
Evaluate
T
1 when T-5.
Answer:
T= 6
Step-by-step explanation:
T-5=1
find T
+5 to both sides
T= 6
A total of 150 tickets were sold for the annual concert. Student tickets were $4 and non-students $8. If the total revenue was $840, how many tickets of each type were sold ?
Answer:
x = 90
y = 60
Step-by-step explanation:
Let x = student
Let y = non-student
x + y = 150
4x + 8y = 840 <—— Use elimination/addition ethos for both equations
8 (x + y = 150)
-1 (4x + 8y = 840) <—— Let’s eliminate y
8x + 8y = 1200
+ -4x - 8y = -840
—————————————
4x = 360
x = 90
x + y = 150 <— substitute for x from above
90 + y = 150
- 90 = - 90 <— subtract from both sides
y = 60
b = -4g + 52
Hi can u help me thanks
Answer:
54wy35syrdhtrd
Step-by-step explanation:
oy86t4s2r4ssuc78t87y8ma769798bowss668768
Write each phrase as an algebraic expression
1. Jenny is 5 times as old
2. Brandon spent 10 dollars more
Answer:
1. "5 times as" means multiply by 5.
Jenny = x * 5
2. "10 dollars more" means add 10
Brandon = x + 10
if you spin the spinner 40 times, how many 4'
Answer:
10
Step-by-step explanation:
Answer:
Your prediction would be eight 4's
Step-by-step explanation: I just solved it!
jack is making a triangle shaped deck,one side is 5ft and the other is 7ft. he is going to make the third length 14ft. is jack correct about his third length?
Answer:
no
Step-by-step explanation:
TWVU is a trapezoid with midsgment FG find the value of x please help
Answer:
Find each measure.
1.
SOLUTION:
The trapezoid ABCD is an isosceles trapezoid. So,
each pair of base angles is congruent. Therefore,
ANSWER:
101
2. WT, if ZX = 20 and TY = 15
SOLUTION:
The trapezoid WXYZ is an isosceles trapezoid. So, the
diagonals are congruent. Therefore, WY = ZX.
WT + TY = ZX
WT + 15 = 20
WT = 5
ANSWER:
5
COORDINATE GEOMETRY Quadrilateral
ABCD has vertices A(–4, –1), B(–2, 3), C(3, 3),
and D(5, –1).
3. Verify that ABCD is a trapezoid.
SOLUTION:
First graph the points on a coordinate grid and draw
the trapezoid.
Use the slope formula to find the slope of the sides of
the trapezoid.
The slopes of exactly one pair of opposite sides are
equal. So, they are parallel. Therefore, the
quadrilateral ABCD is a trapezoid.
ANSWER:
ABCD is a trapezoid.
4. Determine whether ABCD is an isosceles trapezoid.
Explain.
SOLUTION:
Refer to the graph of the trapezoid.
Use the slope formula to find the slope of the sides of
the quadrilateral.
The slopes of exactly one pair of opposite sides are
equal. So, they are parallel. Therefore, the
quadrilateral ABCD is a trapezoid.
Use the Distance Formula to find the lengths of the
legs of the trapezoid.
The lengths of the legs are equal. Therefore, ABCD
is an isosceles trapezoid.
ANSWER:
isosceles;
5. GRIDDED REPSONSE In the figure, is the
midsegment of trapezoid TWRV. Determine the value
of x.
SOLUTION:
By the Trapezoid Midsegment Theorem, the
midsegment of a trapezoid is parallel to each base
and its measure is one half the sum of the lengths of
the bases.
are the bases and is the
midsegment. So,
Solve for x.
16 = 14.8 + x
1.2 = x
ANSWER:
1.2
CCSS SENSE-MAKING If ABCD is a kite, find
each measure.
6. AB
SOLUTION
please help(: ( 8th grade lesson)
Step-by-step explanation:
Since angle 1 is on a straight line and we know that angle 4 is 160, and a straight line has a sum of 180 degrees, simply subtract 160 from 180 to get angle 1.
Angle one would be 180-160 = 20
Since the sum of angles in a triangle is 180 and we already know 2 of them, angle 1 is 20 and angle 3 is 30, just add them together and then subtract that from 180. 20 + 30 = 50, and 180 - 50 = 130.
So in conclusion:
Angle 1 is: 20
Angle 2 is: 130
pls help how many terms r there?
Answer:
3
Step-by-step explanation:
How far is the portion of her route from H to A? Round to the nearest whole number. Explain. PLS HELP ME I NEED IT BY TONIGHT
Answer:
2089
Step-by-step explanation:
Select the correct answer.
Look at the graph below.
Which of the following statements are true, based on the graph?
A. The number of hours depends on the number of boxes manufactured.
B. The number of boxes manufactured depends on the number of hours.
C. The number of pens depends on the number of boxes manufactured.
D. The number of pens depend on the number of hours.
Answer:
B. The number of boxes manufactured depends on the number of hours.
Step-by-step explanation:
The graph shows that as more time passes, more boxes are being manufactured. Therefore, the number of boxes relies on the number of hours.
Hope this helps :)
Please help...it due ASAP
Show workings please
Answer:
36.5 i believe.
Step-by-step explanation:
you divide 986 by 27 and it equals 36.5.
hope you get it right!
if this is wrong then you can report me i guess. ='(
PLZ HELP PLZ HELP WHATS THE ANSWER
Seven times the first number plus six times the second number equals 31.
- Three times the first number minus ten times the second number is 29.
WHAT ARE THE TWO NUMBERS
The first number will be [tex]\frac{11}{2}[/tex] and the second number will be [tex]-\frac{5}{4}[/tex].
Let the first number be x and the second number be y.
According to the question,
Since seven times the first number plus six times the second number equals 31. So,
[tex]7x+6y=31.......(1)[/tex]
Similarly,Three times the first number minus ten times the second number is 29.So,
[tex]3x-10y=29.......(2)[/tex]
Multiplying equation (1) by 3 and equation (2) by 7, we get
[tex]21x+18y=93[/tex]
[tex]21x-70y=203[/tex]
Now subtracting both the equations we get,
[tex]88y=-110[/tex]
[tex]y=-\dfrac{110}{88}[/tex]
[tex]y=-\dfrac{5}{4}[/tex]
putting the value of x in equation (1) we get,
[tex]7x+6\times-\dfrac{5}{4} =31[/tex]
[tex]7x-\dfrac{15}{2}=31\\[/tex]
[tex]7x=31+\dfrac{15}{2}[/tex]
[tex]7x=\dfrac{77}{2}[/tex]
[tex]x=\dfrac{11}{2}[/tex]
Hence the first number is [tex]\frac{11}{2}[/tex] and the second number is [tex]-\frac{5}{4}[/tex].
For more details on solving linear equation in two variables follow the link:
https://brainly.com/question/10270150
Express and simplest radical form.
Answer:
4 square root 5 is the answer
root(20*4)
2 × root(5×4)
4×root(5)
Help me pleaseeeeeeeeeeeeewe
Answer:
no its x = - 4
Step-by-step explanation:
Please help answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!
Answer:
i think its 360.......
Step-by-step explanation:
i hope it helps
5(a-6) in expanded form?
Answer:
5a - 30
Step-by-step explanation:
Answer:
5a - 30
Step-by-step explanation:
Distributive property: a(b + c) = a*b + a*c
5(a - 6)= a * 5 - 6*5
= 5a - 30
please help me on this will give you brainliest!!
Answer:
bc= 6
Step-by-step explanation:
since the triangles are similar, the sides are in a ratio
xz/ac = 20/4 (5:1)
yx/ba = 15/3 (5:1)
yz/bc = 5:1 = 30/6
mark invested 125 he earned a simple interest of 3% per year on the initial investment if no money was added or removed from the investment what was the amount of interest mark received at the end of two years
Answer:
$7.50
Step-by-step explanation:
formula for simple interest:
I = prt
I = ($125)(0.03)(2)
I = $7.50
Answer:
You time 125 by 1.03 twice subtract 125 from that awnser to get the amount of money from interest 7.6125 is the awnser
Step-by-step explanation:
The discriminant of a quadratic equation is 0. Which statement is true?
a. there are two real solution
b. there are no real solution
c. there is one real solution
Answer:
A
Step-by-step explanation:
two real solutions! hope this helped!!
In EFG, L is the centroid. If LJ=9 find EL.
Answer:
LG=LE=LF since it is the centroid. So I think it would also be 9.
hi hi help math please ill give brainliest too the person whom gets it right :))))))))))))
Answer:
4/1
Step-by-step explanation:
The slope of the line is y/x or rise/run. The line increases in height (y) by 4, while it only travels (x) 1. The line travels 4y in the time it takes to travel 1x. 4/1 (or just 4)
Need help pleaseeeee!!
Answer: z 1/2
Step-by-step
:) 100%
Match the description to the graph:
help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help pls help. I will mark you as Brainly if you help me, also I will also very thank to u.
Answer:
1.)B 2.)C 3.)D
Step-by-step explanation:
sanaakantulong please give me brainlist
#carry on schoolAnswer:
The first distance is b. The second distance is c. And the last distance is d.
Step-by-step explanation:
For the first one it is b because she does not stop walking from one place to the other and same with d. But c is different because she did not get to her destination and ran back home so she did not complete the trip.
show step by step......
Answer:
Step-by-step explanation:
Amount paid for first 100 watches = (65% of 80) *100
[tex]=\frac{65}{100}*80*100\\\\= 65*80\\= 5200[/tex]
Amount paid for next 50 watches = (55% of 80) * 50
[tex]= \frac{55}{100}*80*50\\\\= 55 * 8 * 5\\\\= 2200[/tex]
Remaining watches = 280 -(100+ 55)
= 280 - 155 = 125
Amount paid for 125 watches = (45% of 80) *125
[tex]= \frac{45}{100}*80*125\\\\= 45 * 20 * 5\\\\= 4500[/tex]
Amount received by the watch maker = 5200 + 2200 + 4500
= £ 11900
The length of a rectangle is 1 foot less than 3 times the width. The area is 310 ft². Find the dimensions of the rectangle.