Answer:
This is a proportion
Step-by-step explanation:
Cross multiply:
12 * 20 = 16 * 15
Simplifying:
12 * 20 = 16 * 15
Multiply 12 * 20
240 = 16 * 15
Multiply 16 * 15
240 = 240
Add '-240' to each side of the equation.
240 + -240 = 240 + -240
Combine like terms: 240 + -240 = 0
0 = 240 + -240
Combine like terms: 240 + -240 = 0
0 = 0
Solving
0 = 0
12 + (-4) + 5j + -2j + 5
I NEED HELP WITH THIS AND IT NEEDS TO BE IN STEP BY STEP CAN SOME ONE HELP ME SOLVE THIS!!!!!!!!!!!!!
Answer:
12+(-4)+5j+(-2j)+5
=12-4+5j-2j+5
=8+3j+5
=13+3j
Plzzz tell me someone kno how to do this!!
I'll mark brainliest
Answer:
21.6
Step-by-step explanation:
If x=14.4
And BC= 36
36-14.4= y
21.6= y= DC
help me
Mount St. Helens lost about 1300 feet of height in the May 18, 1980, volcanic eruption.
About how many meters of height did it lose?
A. about 3900 meters
B. about 39 meters
c. about 3.900 meters
D. about 400 meters
E. about 40 meters
A line passes through (0,4) and (3,0). Which equation does not represent the equation of this line?
a
y - 0 = - 4/3 (x - 3)
b
y = - 4/3x + 3
c
y - 4 = - 4/3 (x - o)
d
x/3 + y/4 = 1
e
4x + 3y = 12
Answer:
A
Step-by-step explanation:
use both points to find the slope using the equation
y2-y1/x2-x1, so , -2-4/2-0 = -6/2 = -3. slope or m = -3
then the y int can be any y point, so either -2 or 4. in this case they used 4.
"If two polygons are similar, then their corresponding angles are equal in measure." True or false?
O True
O False
Answer:
true hope it helps thanks
Answer:
true
Step-by-step explanation:
if two polygons are congruent(equal) then their corresponding parts are equal
A boat is traveling a distance of 90 km at a speed of 30 km/s, how long will it take to reach its destination?
PLEASE SHOW WORK!
Answer:
3 sec
Step-by-step explanation:
Answer:
[tex]3[/tex] seconds
Step-by-step explanation:
[tex]90 \div 30 = 3[/tex]
It will take [tex]3[/tex] seconds for the boat the reach its destination.
HELPPPP
Write a function that represents the balance after t years.
$2000 deposit that eams 5% annual interest compounded quarterly
Not sure if this is correct but:
Step-by-step explanation: P = 2000
R = 5% = 0.05
n = 4
y = 2000 ( 1 + [tex]\frac{0.05}{4}[/tex]) [tex]^{4t}[/tex] = 2000 ( 1.0125 )
Substitute values in the compound interest formula:
y = P ( 1 + [tex]\frac{r}{n}[/tex])[tex]^{nt}[/tex] .
Hope this helps..
Mike compared the y-intercept of the graph of the function
f(x) = 5x + 12 to the y-intercept of the graph of the ilnear function that
includes the points from the table below. What is the difference when the y-
intercept of f (x) is subtracted from the y-intercept of g (x)?
Х
1 3 5 6
g(x) 10 14 18 20
Answer:
-4Step-by-step explanation:
Given function
f(x) = 5x + 12From the table we get the function g(x), use pairs (1, 10) and (3, 14)
The slope:
m = (14 - 10)/(3 - 1) = 4/2 = 2The y-intercept:
10 = 2(1) + bb = 10 - 2b = 8The function g(x) is found as:
g(x) = 2x + 8The y- intercept of f (x) is subtracted from the y-intercept of g (x):
8 - 12 = -4Answer:
(the answer is • -4)
...
Nick is buying one DVD player and some DVDs. At Electronics-R-Us, the DVD player is $60 and the DVDs are $12 each. At Movies-n-More, the DVD player is $80 and movies are $10 each. If the cost at the two stores is equal, how many DVDs did Nick purchase?
Anna is x years old and her sister is 5 years older. How old was her sister 5 years ago?
(principal test RSM)
Answer:
[tex]x[/tex]
Step-by-step explanation:
[tex]x + 5 - 5 = x[/tex]
30, 24, 35, 84, 60, 42, 29, 16, 68, 47, 22, 74, 34, 21, 48, 91, 66, 51
33, 29, 18, 31, 54, 75, 23, 45, 25, 32, 57, 40, 23, 32, 47, 67, 62, 23. In order
Answer:
16, 18, 21, 22, 23, 24, 25, 29, 30, 31, 32, 33, 34, 35, 40, 42, 45, 47, 48, 51, 54, 57, 60, 62, 66, 67, 74, 75, 84, 91
The location of three fish relative to the water's surface are -10 feet -3 feet, and -12 feet. Which number has the least absolute value?
the grocery bill is $76.00 what is the total bill with a 7% sales tax?
Answer:
the correct answer is 81.32
Step-by-step explanation:
76 times .07 is 5.32 plus 76 is 81.32
Answer:
81.32
Step-by-step explanation:
Take the cost of the item ($76.00) and and multiply it by the percentage as a decimal (0.07) to get your sales tax (5.32)
- The zoom feature on a camera lens allows you dilate what appears on the display. When you change from
100% to 700%, the new image on your screen is an enlargement of the previous image with a scale factor of
7. If the new image is 70 millimeters wide, what was the width of the previous image?
a. 245 millimeters
35 millimeters
b. 490 millimeters
d. 10 millimeters
c.
Answer:
d. 10 milimeters
Step-by-step explanation:
Answer:
10 milimeters
Step-by-step explanation:
100/700 = x/70
x = 10
Solve the inequality 171 > -6x, and graph the solution. What does the graph look like?
Answer:
x>-57/2 (the answer)
Step-by-step explanation:
171>-6x
-6x<171
how many square feet of outdoor carpet will we need for this hole?
Answer:
The area of the carpet is 38 square feet.
Hope this helps. Le me know if you need anything else.
HELP ME ASAP PLEASE ?!?
Find the length of the missing side. Simplify all radicals.
Answer:
b = 9√5 (see below)
Step-by-step explanation:
Using the Pythagorean Theorem, you can find the missing side. The two sides connect to the right angle are the legs, and the sloping side across from the right angle is the hypotenuse.
We know that:
a² + b² = c²
—where a and b are legs and c is the hypotenuse.
Plug in the known values:
a² + b² = c²
18² + b² = 27²
324 + b² = 729
b² = 405
√b² = √405
b = √81 √5
b = 9√5
Answer:
20
Step-by-step explanation:
A^2+B^2=C^2
18^2+B^2= 27^2
324+B^2= 729
-324 -324
B^2 = 405
B= [tex]\sqrt{405)\\[/tex]
B=20
earth's equator has a diamter of 7926.4 miles. which equation can be used to find the circumference of earth at the equator?
Answer:
To find the circumference you need to use C= 2πr but since you started with the diameter you need to divide it by 2 and you will get 3963.2. After you get the radius use the formula C= 2πr and you will get 24901.52
The equation would be written as 2 x π x 3963.2 = 24901.52
What is the first step in solving this quadratic equation? x^2+5x=6
a) combine like terms
2) set each factor equal to zero
c) subtract 6 from both sides to get it equal to zero.
d) factor
Answer:
c) subtract 6 from both sides to get it equal to 0
Step-by-step explanation:
#1. (3 points) Use the commutative property to write an expression that is equivalent to 3x – 6 – 8x.
Answer: -(5x+6)
Step-by-step explanation:
To solve for x in the equation x - 4 = 19, which inverse operation would you
apply? *
O add 4 to both sides
subtract 4 from both sides
add 19 to both sides
O subtract 19 from both sides
Dont need awnser just explain
Answer:
i am just standing here
Step-by-step explanation:
Marie purchased a $49.00 gift for a baby shower. She uses a coupon that offer 20% off. how much will Marie SAVE on the gift card after the coupon
Answer: $39.2
Step-by-step explanation:
9.80 saved
Step-by-step explanation:
49.00 x .20 = 9.80
find ratio of := 900 cm to 12cm
ovhovientos ochenta y siete
Plz help !!!!!!!!!!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
x^2 + 7x + 5x + 35
7x : II
5x: III
35: IV
Can someone explain this to me please
Answer:
40
Step-by-step explanation:
Carter's speed is 60, and Vitor's speed is 100. To find how much slower, Carter was, subtract Vitor's speed from Carters. 40 is the difference.
Answer:
Carter is about 17% slower than vitor
Step-by-step explanation:
Carter is 14/60 = 23.33/100
Vitor is 40/100
the massive rear tire of a tractor rotates and moves the tractor 100 yards across a field in 4 minutes. Determine the linear velocity of the outer edge of the massive tire. Is the linear velocity of the outer edge of the smaller tire faster or slower than the massive tire? Which has a greater angular velocity?
9514 1404 393
Answer:
a) 25 yards per minute
b) linear velocity is the same
c) smaller tire has greater angular velocity
Step-by-step explanation:
a) The linear velocity of the edge of the tire is the same as the linear velocity of the tractor: (100 yd)/(4 min) = 25 yd/min
__
b) All parts of the tractor have the same linear velocity. The outer edge of the smaller tire is moving at the same linear velocity.
__
c) Because the smaller tire must make more turns to cover the same distance in the same time, its angular velocity (turns/time) is greater.
The smaller tire has greater angular velocity.
3 people can deliver 1000 letters in 30 minutes.
How long would it take 1 person to deliver all 1000 letters?
If there are 5 people delivering would it take more or less time?
How long will take 5 people to deliver 1000 letters?
Answer: It would take 1 hour and 30 minutes for one people do it.
If 5 people do it would take less time. If there are 5 people delivering the letters it would take them 12 minutes ti deliver all 1,000 letters.
3x+4=9x-8= ????????????
PLEASE HELP WILL MARK BRAINLIEST PLZ PLZ PLZ!!
Answer:
7. C 8. E 9. is x=12
Step-by-step explanation:
180 divided by3 equals 60
60-12 =48
48/4 =12
