Answer:
48
Stepbystep explanation:
75/100 = 36/x
x = 48
decrease eight times a number by twice the same number
Answer:
6x
Stepbystep explanation:
8x2x
The sum of two integers is 2. Their difference is 10. What are the two integers?
Answer:
6 and 4
Stepbystep explanation:
a + b = 2
a  b = 10
Solve:
from the first eq.
a = 2  b
replacing this value in the second eq.
(2b)  b = 10
2  2b = 10
2b = 10  2
2b = 8
b = 8/2
b = 4
from the second eq.
a  b = 10
a  (4) = 10
a + 4 = 10
a = 10  4
a = 6
Check:
from the first eq.
6 + (4) = 2
6  4 = 2
Solve the equations below. Give exact solutions only. Show your work.
a) 5x^2  7 = 72
b) x(x + 2) = 5
c) 3x^2 + 2x  4 = 0
Answer:
A. 5x²  7  72 = 0
5x²  79 = 0
x = ± √4ac / 2a
x = ± √ 4 (5) (79) / 2 (5)
x = ± √ 1580 / 10
x = ± 39.749/10
x = + 39.749/10 x = 39.749/10
= 3.9749 =  3.9749
B. x² + 2x  5 = 0
x =  b ± √b²  4ac / 2a
=  2 ± √2²  4 (1) (5) / 2 (1)
=  2 ± √4 + 20 / 2
=  2 ± √ 24 / 2
x =  2 + 4.898 /2 x =  2  4.898 / 2
= 2.898/2 = 6.898/2
= 1.449 =  3.449
C. 3x² + 2x  4 = 0
x =  b ± √b²  4ac / 2a
=  2 ± √2²  4 (3) (4) / 2 (3)
=  2 ± √4 + 48 / 6
=  2 ± √ 52 / 6
x =  2 + 7.211 /6 x =  2  7.211 / 6
= 5.211/6 =  9.211 /6
= 0.869 =  1.535
Hope that helps
Please to recheck answers
40% of _______ is 16.
Answer:
40% of ___ is 16
So then 10% of ___ is 4
Then do 4 x 10 = 40
So 40% of 40 is 16.
What is the distance between the following points?
Answer choices
A 9
B 10
C square root of 21
D square root of 58
Answer: 9 is incorrect the anwser is acactually D . The square root of 58
Stepbystep explanation:
"Four times the difference of a number and
seven is at least 52."
What is the difference (how far apart on a number line are the solutions) between the sum of roots versus the product of the roots of the equation:
(x5)(x+2)=0?
answer should be a number only
Answer:
7
Stepbystep explanation:
(x  5)(x + 2) = 0
x = 5 & 2
Now,
given
r > s
r = 5, s = 2
Now,
=> r  s
=> 5  (2)
=> 5 + 2
=> 7
Which of the following could be used to solve the triangle below?
Answer:
sine
Stepbystep explanation:
Solve: 4x = 32
–8 or 8
8
24
no solution
Answer:
8 or 8
Stepbystep explanation:
We are given the absolute equation:
[tex]\displaystyle \large{4x=32}[/tex]
First, divide both sides by 4 which leaves [tex]\displaystyle \large{x=8}[/tex]
Absolute Value Definition
[tex]\displaystyle \large{x=\begin{cases} x \ \ \ (x\geq 0)\\ x \ \ \ (x<0) \end{cases}}[/tex]
So from x = 8, break into two intervals/conditions.
(1) when x ≥ 0
x = 8
(2) when x < 0
x = 8
x = 8
From (1) and (2), the solution to 4x = 32 is 8 or 8
Which of the following are solutions to the equation below?
Check all that apply.
(3x  5)2 = 19
=
A. x= V19+
B. X= 
V14
3
O c. x=
114
3
O D. x= 119 +5
3
E. x = V19+
+
3
V19 +5
O F. X=
3
The solutions are x = (5 + √19)/3 and x = (5  √19)/3. These match options E and F in your question.
What is the solution for an equation?The solution of an equation refers usually to the values of the variables involved in that equation which if substituted in place of those variable would give a true mathematical statement.
We are given that;
The function (3x  5)2 = 19
Now,
To find the solutions to the equation (3x  5)^2 = 19, we need to use the following steps:
Take the square root of both sides to get 3x  5 = ±√19
Add 5 to both sides to get 3x = 5 ±√19
Divide both sides by 3 to get x = (5 ±√19)/3
Therefore, the solutions of the equations will be x = (5 + √19)/3 and x = (5  √19)/3.
Learn more about solving equations here:
https://brainly.com/question/13072448
#SPJ7
v = 128 – 32t
v is the velocity in ft/sec. It is NOT the height of
the ball.
t is the number of seconds after the ball is
thrown.
With what initial velocity is the ball thrown?
128 seconds
s
What is the yintercept of the equation?
IS
[ Select]
What does the yintercept mean?
t
[ Select ]
What is the xintercept of the equation?
[ Select]
What does the xintercept mean?
Select]
7
10


с
80°F
Answer: The Y intercept is 128 as well, which is the original velocity. Technically it should be v  intercept but whatever. The y / v intercept is the original velocity. The X intercept should be the t intercept but again whatever. The x/t intercept is 4, meaning that the velocity is zero when t is 4
Stepbystep explanation: y/v intercept is when t = 0. v = 128  32(0) = 128
It is the initial velocity at t = 0. The X/t intercept is when v = 0. 0 = 128  32t, so 32t = 128, so t = 4. The x intercept means when the velocity is zero, which means that the ball is at its highest/farthest point.
how do I write an equation of a line that is parallel to 2x3y=15
Marco runs 4 kilometers every morning. He takes 2 minutes for the first 500 meters, 4 minutes for the next 2000 meters, 1 minute for the next 700 meters, and 3 minutes for the rest.
Marco’s average speed for the entire run is__320___ meters per minute. Hint : One kilometer is the same as 1,000 meters.
Answer: 400 meters per minute.
Formula to find average speed: total time / total distance
Total time taken is 2+4+1+3 which is 10 minutes.
Total distance traveled is 4 kilometers.
(Unitary method)
In 10 minutes Marco runs 4 kilometers.
In 1 minute Marco will run 4/10 (0.4)kilometers.
Now to convert 0.4 kilometers to meters,multiply it by 1000.
0.4 * 1000 is 400 meters
so the final answer is he will run 400 meters in 1 minute.
Eric needs to make a total of 20 deliveries this week. So far he has completed 13 of them. What percentage of his total deliveries has Eric completed?
Answer:
65%
Stepbystep explanation:
13/20 is equivalent to 65% because half of it will be half of the percentage so that's why it is 65%
Plz help (MATH)...................
Answer:
2.8 pounds
Stepbystep explanation: For this one, I rounded the answer, but what you need to do is divide 20 by 7.
20/7 = 2.85714285714
2.85714285714 ≈ 2.8 pounds
Provide an example of a function that does not have an inverse function. How do you prove that it is not a function?
Answer:
f(x) = x^2 is a classic example
f( 3 ) = 9 and
f( 3 ) = 9, but
f^(1)[9] is undefined because the result can be 3 and 3
In a survey, 3 out of 20 students were lefthanded. Based on this information, if 300 students were interviewed, how many of them could be expected to be lefthanded?
Based on the information given, from the fraction, it can be noted that the number of lefthanded people will be 45.
From the information given, it was stated that in the survey, 3 out of 20 students were lefthanded.
Therefore, in a population of 300 people, the number of left handed people will be:
= 3/20 × 300.
= 3 × 15
= 45
There are 45 left handed people.
Learn more about fractions on:
https://brainly.com/question/13763238
If there are 42 boys and 54 girls in a room, fill out all of the possible ratios of boys to girls that could be made.
Answer:
42:54,54:42
Stepbystep explanation:
Find the output for f(x) = 3 2x  9 + 4.
When x = 5
SHOW EVERY STEP!
Hey there!
f(x) = 32x  9 + 4
y = 32x  9 + 4
y = 32(5)  9 + 4
y = 310  9 + 4
y = 319 + 4
y = 57 + 4
y = 53
Therefore, your answer should be: f(x) = 53
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
A basketball player makes 75% of her free throws. If she made 84 free throws this season, how many has she attempted?
A. 112
B. 105
C. 63
D. 168
Answer:
A
Stepbystep explanation:
84 / 0.75 = 112
112 x 0.75 = 84
Answer:
Its A
Stepbystep explanation:
Determine which of the following terms are considered to be like terms with the expression 3xy. Select all situations that apply.
A) 3 x ∙ y
B) 1/2( xy)
C) 2 ∙ x ∙ y
D) 4 ∙ x + y
E) ( x)( y)
F) 2 x^2 y
Answer: Down there there is the correct answer step by step
I hope it helps you!
Tell if each statement about the equations y = log5x and y = 5% are true or false.
Explain your answers.
a) The graphs of the equations are symmetric to each other over line y = 0.
b) The equation y = 5* is the exponential form of y = log5x.
c) The functions are not inverses of each other.
d) The equations are symmetric over the line y = x.
Answer:
a) false b) false c) false d) true
Stepbystep explanation:
Answer:
a) false b) false c) false d) true
Stepbystep explanation:
4. Kayla graphed a scatter plot of the number of hours she drove her car
(x) and the distance traveled (y). She drew the trend line and calculated its
equation to be y = 50x + 2. What is the predicted distance Kayla would
drive if she drove for 3.5 hours?
What 3/4 equals 2/3￼
Answer:
17/12= 1 5/12
Stepbystep explanation:
make the denominator the same as 12
_______ 9/12 =8/12
so add 8+9 to get 17.then keep the denominator as 12. last simpfie it to 1 5/12
Kindly Simplify this Question
Stepbystep explanation:
(3⁵×2^5×5^5×2×3²)/(5⁵×3^2×2^2)
[3^(5+2+2)][2^(5+1+2)][5^(55)]
3⁹×2^2×5^10.
hope this helps you.
1 L = 0.26 gal
How many liters are in 13.39 gallons?
Answer: 50.686664
Stepbystep explanation: hope this helps :)
Find the area of the figure.
Answer:
780ft²
Stepbystep explanation:
I'd cut that lower part off into a separate section, and then its width would be the difference of 40 and 30, and its height the difference of 24 and 18. Then, with just 2 rectangles, you can easily calculate the area of each and add them up.
[tex]4030=10\\2418=6[/tex]
The lower rectangle is 10' × 6'.
Upper rectangle:
[tex]40\times18=720[/tex]
Lower rectangle
[tex]10\times6=60[/tex]
Add them up:
[tex]720+60=780[/tex]
780ft²
1,348.439 rounded to the nearest one’s
Answer:
1348
Stepbystep explanation:
Subtract and simplify your answer. 3/4  1/6
Answer:
7/12
Stepbystep explanation:
3/4  1/6
18/24  4/24 = 14/24
14/24 = 7/12
Answer:
[tex]\frac{7}{12}[/tex]
Stepbystep explanation:
[tex]\frac{3}{4} \frac{1}{6}[/tex] ⇒ [tex]\frac{9}{12} \frac{2}{12}[/tex]
[tex]=\frac{7}{12}[/tex]
Hope this helped! :)
Three boards are placed end to end to make a walkway. The first board is 2 feet 8 inches long, the second board is 6 feet 10 inches long, and the third board is 4 feet 9 inches long. How long is the walkway?
Answer:
The walkway is 14ft and 3in
Stepbystep explanation: