On certain highways the speed limit is 75 mph, at this rate how far would you travel in 2.5 hours.
Answer:
187.5mph
Step-by-step explanation:
If 1 hour= 75mph
what about 2.5 hours
you cross multiply
Twice the sum of a number x and 9 is equal to 12 less than the number x. What is the value of x?
Answer:
x = -30
Step-by-step explanation:
Let x be the number.
2(x + 9) = x - 12
Use distributive property of multiplication
2x + 18 = x - 12
Simplify by combining like terms
2x - x = -12 - 18
x = -30
Find the equation of this line.
y = x + [ ]
The Equation of line is y = -x + 3.
What is Slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the
change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
Take the points (4, -1) and (0, 3).
so, the slope of line is
m = (3+ 1)/ (0-4)
m = 4/ (-4)
m = -1
So, the equation of line
y= mx+ b
y= -x + b
and, 3 = b
So, the required equation is y = -x + 3.
Learn more about Slope here:
https://brainly.com/question/3605446
#SPJ2
Use the Distributive Property and simplify the expression. 11+5(2x − 3) + 1
Answer:I’m pretty sure the answer is 10x-3
Step-by-step explanation:
What is the value of expression below if u=-5 and y=40
Answer:
what expression
Step-by-step explanation:
How solve step by step -5р - 9 + 8р = 36
Answer:
-5p-9+8p=36
-5p+8p=36+9
3p= 45
3p/3=45/3
p=15
Answer:
p= 15
Step-by-step explanation: Hope this helps you!! :)
Which of the following equations has exactly one solution?
A. 5a + 4 = 9a + 3 – 4a
B. 3 + 5x – 12x = 2 – 7x
С. 9.2n + 3.1 = 5.2n – 4.9
D. 11 – 4s = -1/2(8s) + 1/2(22)
Answer:
A
Step-by-step explanation:
5a+4=9a+3-4a
5a-9a+4a=3-4
a=-1
While performing a vertical line test on a graph, you notice that the graph intercepts the vertical line twice. Which of the following correctly interprets the result of the test? (1 point) Because the vertical line intercepted the graph exactly twice, the graph is of a function. Because the vertical line intercepted the graph more than once, the graph is of a relation, but it is not a function. Because the vertical line did intercept the graph exactly twice, the graph is a function and a relation. Because the vertical line intercepted the graph more than once, the graph is of a function, but it is not a relation.
Answer:
The correct option is;
Because the vertical line intercept the the graph more than once, the graph is of a relation but it is not a function
Step-by-step explanation:
A function is a kind of relation that maps a given set of inputs unto a set of outputs such that each of the values of the input can be linked to only one value of the output, such that the input and outputs form a set of ordered pairs
Therefore, a relation which maps a given input to more than one output is not a function, as such, given that the line intercepts the vertical line twice, then for a given value of x, which is the input, there are more than one value of y, which is the output, as such the relation is not a function.
Students reported practicing violin during the last semester for 45, 38, 52, 58, and 42 hours. What is the mean absolute deviation for the number of hours students practiced the violin? Round to the nearest tenth. 6. 4 6. 8 32 47.
The mean absolute deviation for the number of hours students practiced the violin is 6.4.
What is the mean absolute deviation?
The average absolute deviation of the collected data set is the average of absolute deviations from a center point of the data set.
Given
Students reported practicing violin during the last semester for 45, 38, 52, 58, and 42 hours.
The given data set is;
45, 38, 52, 58, 42
Mean Deviation = Σ|x − μ|/N.
μ = mean, and N = total number of values
|x − μ| = |45 − 47| = 2
|38− 47| = 9
|52− 47| = 5
|58− 47| = 11
|42− 47| = 5
The mean absolute deviation for the number of hours students practiced the violin is;
[tex]\rm Mean =\dfrac{2+9+5+11+5}{5}\\\\Mean=\dfrac{32}{5}\\\\Mean = 6.4[/tex]
Hence, the mean absolute deviation for the number of hours students practiced the violin is 6.4.
To know more about mean value click the link given below.
https://brainly.com/question/5003198
Louisa (L) is five years less than three times Brie’s age. Together, their age totals 43. How old is Louisa?
what is the equation of the line that passes through the point (-4,2) and has a slope of -5/4
Answer:
The answer is
[tex] \huge y = - \frac{5}{4} x - 3[/tex]
Step-by-step explanation:
To find an equation of a line given the slope and a point we use the formula
[tex]y - y_1 = m(x - x_1)[/tex]
where
m is the slope
( x1 , y1) is the point
From the question the point is (-4,2) and slope of -5/4
We have
[tex]y - 2 = - \frac{5}{4} (x + 4) \\ y - 2 = - \frac{5}{4} x - 5 \\ y = - \frac{5}{4} x - 5 + 2[/tex]
We have the final answer as
[tex]y = - \frac{5}{4} x - 3 \\ [/tex]
Hope this helps you
Billy went to the hardware store and bought 18 identical sections of pipe. The total length of the pipes was 45.18 meters. How
long was each pipe?
Answer:
2.51 meters
Step-by-step explanation:
Please help me add 5 3/4 + (-1/4), - 2/3 + 1/6, 8/5 + (- 3/4).
Answer:
1. 11/2
2. -1/2
3. 17/20
Step-by-step explanation:
175% of 12 is what number ?
Answer:
21
Step-by-step explanation:
12 times 1.75 equals 21
12. The charges for an international
Phone Company
Charges
call made using the calling card
for two phone companies are
Company A 350 plus 30 per minute
shown in the table.
Company B 450 plus 20 per minute
a. What is the length of a phone call that would cost the same no matter
which company is used?
10 minutes
b. Analyze Relationships When is it better to use the card from
Company B?
Answer:
when you have longer than 10 minute phone calls
Step-by-step explanation:
after 10 minutes each plan is 650
plan A + 1 more minute = 680
plan B + 1 more minute = 670
so after 10 minutes plan b costs less
Answer:
10 min long is the answer
$34.97 is what percent of $86.08?
Round your answer to the nearest whole number and include a percent sign (%).
Solve the inequality for x.
1/2x + 4 < 3x -1
Answer:
x>2
Step-by-step explanation:
Which equation represents each dimension of the larger triangle, y, based on the corresponding dimension of the smaller triangle, x?
Y= 2/3x
Y= 3x
Y= 1/3x
Y= 3/2x
How can you use the given side lengths of the triangles to check if your equation is correct?
Answer:
(b) y = 3x; check using dimensions from the figure
Step-by-step explanation:
The dimensions in the larger triangle are more than the dimensions in the smaller triangle. That means the smaller dimensions need to be multiplied by a value greater than 1 to get the larger dimension. (This eliminates the 1st and 3rd choices.)
__
EquationThe figures are drawn approximately to scale, so it is easy to see that the larger triangle's dimensions are more than double (2 times) those of the smaller triangle. (This eliminates the 4th choice. 3/2 < 2)
The equation that represents the larger dimensions in terms of the smaller ones is ...
y = 3x
__
CheckYou can check this by choosing a smaller dimension and using that in the equation:
bottom leg = 3 in
larger bottom leg = y = 3(3 in) = 9 in . . . . matches the diagram
What is the name of the step in the water cycle labeled C?
wwwww
Water is taken in
by animals
Plants take up water
from the ground
Percolation
A. Precipitation
ООО
B. Hydration
C. Transpiration
D. Evaporation
Water cycle involves all processes in which water circulates
The water cycle labeled C is precipitation
How to determine the water cycle labeled step C
From the figure, we can see that the step C represents water falling down from the sky to the earth surface.
This can represent rain, sleet, or snow.
Any of the above forms represent precipitation
Hence, the water cycle labeled C is precipitation
Read more about water cycle at:
https://brainly.com/question/8305337
how do I find the slope with negative fractions
If the degree measure of angle a = 122 in the degree measure of angle J = 125, offer the degree measure of angle c. PLEASE HELP ME ANSWER THIS QUESTION!!! WORTH 100 POINTS AND BRAINLIEST WILL BE MARKED!!!
Answer: 57
Step-by-step explanation:
Which of the following is the graph of 6x – 4y ≤ 20
Answer:
It should be something like that :
If a = 4 and m = –3, evaluate a – 3m.
Answer:
13
Step-by-step explanation:
If a = 4 and m = –3, evaluate a – 3m.
= Solution,
= a - 3m
= 4 - 3 ( - 3 )
= 4 + 9
= 13
Answer:
13 is the answer :)
Step-by-step explanation:
If,
a = 4 and m = -3
Then a - 3m ,
4 - 3(-3)
4+9
= 13
Question in photo! (Please help with other questions!)
Answer:
c) [tex]a_{n}[/tex] = 3.5n + 7.5
Step-by-step explanation: =>
Given :-
a = 11
d = 3.5
To Find :
[tex]a_{n}[/tex]
Solving :-
= a + (n - 1)d
= 11 + 3.5n - 3.5
= 3.5n + 7.5
Solution :-
c) [tex]a_{n}[/tex] = 3.5n + 7.5
WHATS THE CUBE OF TWICE A NUMBER! PLEASE HELP!!!
Answer:i think it 5
Step-by-step explanation:
Answer:
Cube of twice a number? (I’ve never honestly heard that before)
(2x)^2
Step-by-step explanation:
X would equal “number”
The value of a stock increases 14 2/3 points twice in one week. The other three days the value decreases by 10 points, 8 1/3 points, and 12 2/3 points. By how many points did the value of the stock change that week?
A. 23 points
B. 13 points
C. −1 1/3 points
D. −1 2/3 points
(2) x (14 2/3) - (10) - (8 1/3) - (12 2/3) = -(1 2/3) (D)
The value of the stock change that week is -1 2/3.
What is Fraction?The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.
The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.Given:
The value of a stock increases 14 2/3 points twice in one week.
and, The other three days the value decreases by 10 points, 8 1/3 points, and 12 2/3 points.
So, the point in that week
= 2 x 14 2/3 - 10 - 8 1/3 - 12 2/3
= 2 x 44/3 - 10 - 25/3 - 38/3
= 88/3 - 10 - 63/3
= 88/3 - 10 - 21
= 88/3 - 31
= 88- 93/ 3
= - 5/3
= - 1 2/3
Learn more about fraction here:
https://brainly.com/question/10354322
#SPJ2
If VZ=p–7 and WY=p–21, what is the value of p?
Answer:
35
Step-by-step explanation:
By the triangle midsegment theorem, 2(WY)=VZ.
So, 2(p-21)=p-7, meaning p=35.
Hector is building a metal sculpture in the shape of an equilateral triangle. After he divides a metal bar into 3 equal pieces, Hector figures each side of the triangular sculpture can be at most 9 feet long.
Answer:
27
Step-by-step explanation:
because 3*9=27 so that it
The inequality equation is 3L ≤ 27 or L ≤ 9 feet , where L is the length
What is an Inequality Equation?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.
Given data ,
Let the inequality equation be represented as A
Now , the value of A is
Let the length of the equilateral triangle be L
And , each of the lengths of the triangle is at most 9 feet long means that each of the lengths is less than or equal to 9 feet
So , L ≤ 9 feet
And , the perimeter of an equilateral triangle is the addition of the three equal lengths
So , 3L ≤ 27 feet
Therefore , the value of A is 3L ≤ 27 feet
Hence , the inequality equation is 3L ≤ 27 feet
To learn more about inequality equations click :
https://brainly.com/question/11897796
#SPJ2
!No Links; Please
2x+3(x^2-10x-12)
find the product
Answer: 3x^2-28x-36
hope it helps :)
D 4. Solve 8n + 20 < 6n + 24.
O n>-2
On<-2
On>2
On<2
Answer:
8n + 20 + 6n +24
Step-by-step explanation:
Group like terms
8n + 6n + 20 + 24
Simplify
14n + 44
Answer: n<2
Step-by-step explanation: I got it right on the test :)