Answer:
She runs 6 miles in total.
Keith wants to plot -8 and -9 and on a number line. Which statement is true? *
Write the equation of the line that passes through the point (-2, 7) and is PARALLEL to the line y = -4x + 1.
Answer:
The equation is [tex]y=x-9[/tex]
Step-by-step explanation:
If we want a line parallel to the line in the problem it will have the same slope. The equation given in the problem is already in slope intercept form so we can take the slope for the new equation directly from this equation.
The slope-intercept form of a linear equation is: [tex]y=mx+b[/tex]
Where m is the slope and b is the y-intercept value.
[tex]y=1x-2[/tex]
Therefore the slope is
[tex]m=1[/tex]
We can now use the point-slope formula to write the equation of the parallel line:
The point-slope formula states:
[tex](y-y1)=m(x-x1)[/tex]
Where m is the slope and [tex](x1,y1)[/tex] is a point the line passes through.
Substituting the information from the problem gives:
[tex](y- (-7)=1(x-2)[/tex]
[tex](y+7)=1(x-2)[/tex]
Or, we can solve for y to put the equation in slope-intercept form:
[tex]y+7=x-2[/tex]
[tex]y+7-7=x-2-7[/tex]
[tex]y+0=x-9[/tex]
[tex]y=x-9[/tex]
Ann bought a hat for $16.20, a discount of 30% off. She paid 8% for tax how much was the total?
Answer:
werwrweqetrweqtwqw3qty
Step-by-step explanation:
eryeqyqeweyewywewerye
Find the value of y-8 when y = 15.
Answer: y=3
Step-by-step explanation:
the initial statement is
y
∝
1
x
to convert to an equation multiply by k the constant
of variation
⇒
y
=
k
×
1
x
=
k
x
to find k use the given condition
y
=
15
when
x
=
5
y=kx⇒k=y x=15×5=75
equation is
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
∣
∣
∣22y=75x22∣∣
when x=25 then
y=75 25=3
Step-by-step explanation:
I hope understand this
Darius paid 8.5% sales tax when he bought a new phone for $100. What was the total price of his new phone?
A. $108.05
B. $109
C. $105.50
D. $108.50
Answer:
D
Step-by-step explanation:
108.5
Determine the value of y, if x = -3.
y = |x + |1|
Answer:
Step-by-step explanation:
, if x = -3.
y = |x + |1|
So value of Y is
Y=|-3|+|1|
Y=3+1
Y=4
Answer is 4
[tex]y = 4[/tex]
Step-by-step explanation:[tex]y = |x + |1|\\[/tex]
| | = absolute value (how far it is from 0)
[tex]y = |-3 + |1|\\\\\\|-3| =3\\\\|3 +1| =3 + 1 \\3 + 1= 4\\[/tex][tex]\LARGE\boxed {y = 4}[/tex]
Let me know if you have any other questions or concerns!~[tex]InLoveWithPugs[/tex]
[tex]Moderator\\Math\ Enthusiast[/tex]
us
Figure ABCD is a kite. Find the
value of x.
B
X + 20
X + 10
А
С
X = [?]
Enter
Answer:
x = 30
Step-by-step explanation:
Since this is a right triangle,
90 = (x + 20) + (x + 10)
90 = x + x + 20 + 10
90 = 2x + 30
90 - 30 = 2x
60 = 2x
60/2 = 2x/2
30 = x
Check:
x + 20
30 + 20 = 50
x + 10
30 + 10 = 40
50 + 40 = 90
Hope this helps!
The ratio of boys to girls in a homeroom at Twin Rivers Middle School is 3:2
If there are 12 boys, how many girls are there in the homeroom?
Answer:
There are 8 girls in the homeroom
for f(x) =4x-1 and g(x) = x2 - 5, find (f-g)(x)
Answer:
(f - g)(x) = -x² + 4x + 4
General Formulas and Concepts:
Pre-Algebra
PropertiesAlgebra I
Combining like termsFunction notationStep-by-step explanation:
Step 1: Define
f(x) = 4x - 1
g(x) = x² - 5
(f - g)(x) = f(x) - g(x)
Step 2: Find
Substitute: (f - g)(x) = 4x - 1 - (x² - 5)Distribute: (f - g)(x) = 4x - 1 - x² + 5Combine like terms: (f - g)(x) = -x² + 4x + 4plesase solve this
Prove that a line parallel to one side of a triangle divides the other two sides proportionally. Be sure to create and name the appropriate geometric figures. (10 points)
pencil, paper, ruler
Draw:-[tex]\begin{align*}\triangle ABC\end{align*}.[/tex] Label the vertices.
[tex]\begin{align*}\overline{XY}\end{align*} so that \begin{align*}X\end{align*} is on \begin{align*}\overline{AB}\end{align*} and \begin{align*}Y\end{align*} is on \begin{align*}\overline{BC}\end{align*}. \begin{align*}X\end{align*} and \begin{align*}Y\end{align*}[/tex] can be anywhere on these sides.
Is [tex]\begin{align*}\triangle XBY \sim \triangle ABC\end{align*}? Why or why not? Measure \begin{align*}AX, XB, BY,\end{align*} and \begin{align*}YC\end{align*}. Then set up the ratios \begin{align*}\frac{AX}{XB}\end{align*} and \begin{align*}\frac{YC}{YB}\end{align*}.[/tex] Are they equal?Draw:-
a second triangle,[tex] \begin{align*}\triangle DEF\end{align*}.[/tex] Label the vertices
Draw:-
[tex]\begin{align*}\overline{XY}\end{align*} so that \begin{align*}X\end{align*} is on \begin{align*}\overline{DE}\end{align*} and \begin{align*}Y\end{align*} is on \begin{align*}\overline{EF}\end{align*} AND \begin{align*}\overline{XY} \ || \ \overline{DF}\end{align*}.
Is \begin{align*}\triangle XEY \sim \triangle DEF\end{align*}? Why or why not? Measure \begin{align*}DX, XE, EY,\end{align*} and \begin{align*}YF\end{align*}. Then set up the ratios \begin{align*}\frac{DX}{XE}\end{align*} and \begin{align*}\frac{FY}{YE}\end{align*}.[/tex] Are they equal?
From this investigation, it is clear that if the line segments are parallel, then [tex]\begin{align*}\overline{XY}\end{align*}[/tex] divides the sides proportionally.A die is rolled twice. Find the chance that the ace (single dot) comes up on one of the two rolls, but not both. Record your answer as a percentage rounded to the nearest tenth of a percent.
Answer:
13.9%
Step-by-step explanation:
In order to calculate the probability of this happening, we would need to multiply the probability of one of the rolles being an ace with the probability of one of the roles NOT being an ace. Since the probability of rolling an ace is 1/6 (since there is only one ace in a six-sided die) then the probability of NOT rolling an ace is 5/6
[tex]\frac{1}{6} * \frac{5}{6} = \frac{5}{36}[/tex] or 0.1388 multiply by 100 to get percentage value
0.1388 * 100 = 13.9%
Therefore, the probability of getting one ace and one non-ace roll is 13.9%
Whats the slope and how do i / where do i graph it
Answer:
The slope is 3. graph it every time the line hits an exact point
Step-by-step explanation:
Graph the line with slope -6 and y-intercept 3.
Answer:
See Attachment.
Genera Formulas and Concepts:
Algebra I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define variables
Slope m = -6
y-intercept b = 3
Step 2: Write linear equation
Substitute into general form.
Slope-Intercept Form: y = -6x + 3
Step 3: Graph
Answer:
*See Below*
Step-by-step explanation:
It was hard to find this answer. Sorry if the graph glitches.
Please help me please
Answer:
it is A and C
Step-by-step explanation:
If you do the math and equations of all of these, you will find that:
10 is 2.5x bigger than 4 (Side lengths DE and BA)
and if we do the equation:
x · 2.5
(the x variable stands for the different side lengths of triangle ABC)
it will equal the side lengths of the bigger triangle.
and when I finished doing that, I multiplied all of the answers to find the area:
12.5 x 7.5 x 10 which altogether is 937.5
none of the other answers for the total of the triangle add up to be that, but side length EF is 7.5, which I used to get my total answer of 937.5.
So the answer is A and C
A preschool class has 9 girls and 11 boys in
the class. What percent of the class are
girls?
Answer:
45%
Step-by-step explanation:
Add 9 and 11 to see how many students there are in all. The answer to this is 20.Divide 9 by 20. You get .45, which is equal to 45%.13/3 = 26/c help ASAP PLZ!!!!!!!!!!!!!
If x is the principal square root of 7, what must be true.
A. x = 7², and x is negative
B. x² = 7, and x is positive
C. x = 7², and x is positive
D. x² = 7, and x is negative
Answer:
B
Step-by-step explanation:
x=√7
squaring
x²=7
Classify the following triangle by its side lengths:
Answer:
Isosceles triangle
Step-by-step explanation:
all sides the same=scalene triangle
2 sides the same=isosceles triangle
all sides the same=equilateral triangle
why is earth known as diatomaceous Earth???
From biology
Answer:
Diatomaceous earth is made from the fossilized remains of tiny, aquatic organisms called diatoms. Their skeletons are made of a natural substance called silica. Over a long period of time, diatoms accumulated in the sediment of rivers, streams, lakes, and oceans. Today, silica deposits are mined from these areas.
HELP ME PLSS!!!
The coordinate points below show part of data collected by a computer company interested in how fast people type as they get older, where x is age in years and y is typing speed in words per minute.
(5, 12), (13, 25), (12, 22), (18, 45), (15, 39), (15, 32), (16, 33), (17, 40), (7, 17)
If this data was plotted on a scatterplot, would there be a relationship between the variables? If yes, explain the relationship.
Answer:
I think that it is no.
Step-by-step explanation:
Becasue 15, 39 is more than the 16, 33
Graph this line using the slope and y-intercept:
y = x + 2
Click to select points on the graph.
Answer:
points-
(0,2)
(5,3)
(10,4)
I hope this is good enough:
Answer:
Step-by-step explanation:
points-
(0,2)
(5,3)
(10,4)
A tank initially contains 130 gallons of water. It is then filled with more water, at a constant rate of 8 gallons per minutes. Write an equation that represents how much water is in the tank after m minutes.
Answer: 130+8(m)
Step-by-step explanation: you want to add how much water times m is added to your very first amount
Use the inequality 24 ≥ 58 + 5(x - 3.8)
Solve for the inequality X.
Pls help I need to hand it in by 4:00..
Answer:
Work shown below!
Step-by-step explanation:
24 ≥ 58 + 5(x - 3.8)
Distribute;
24 ≥ 58 + 5x - 19
Collect like terms;
24 ≥ 39 + 5x
Subtract 39 from both sides;
-15 ≥ 5x
Divide both sides by 5;
x ≥ -3
What number group is 45/5 in
Answer:
Its in rational
Step-by-step explanation:
Answer:
45/5 is a rational number
Step-by-step explanation:
45/5 is equal to 9.
9 is a rational number.
The chart below shows the numbers of endagered and threatened species both here in the United States and abroad
Endangered Threatened
United States Foreign United States Foreign
Mammals 68 251 10 20
Birds 77 175 13 6
Reptiles 17 67 22 19
Anphibians 11 8 10 1
Find the probability that it is:
a. Threatened and in the United States
b. An endangered foreign bird
c. A mammal or a threatened foreign species
Answer:
a. 0.071
b. 0.226
C. 0.4849
Step-by-step explanation:
We add up all endangered and foreign species to get 775
A.
Probability of threatened in united States.
= 10+13+22+10 = 55 divided by total species
= 55/775
= 0.070967
= 0.071
B
An endangered foreign bird
Total number of foreign birds = 175
Probability = 175/775
= 0.2258
= 0.226
C.
Please check attachment for the calculation of answer part c.
Thank you!
PLEASE HELP PLEASE
question: Your mass on earth is 50 kilograms. What is your mass on the moon?
Answer:
No matter if you are on Earth, the moon or just chilling in space, your mass does not change. But your weight depends on the gravity force; you would weigh less on the moon than on Earth, and in space you would weigh almost nothing at all. Where ever you are, your mass will always stay the same.
Answer:
50 kilograms
Step-by-step explanation:
Mass never changes, and is constant everywhere. The weight is what changes. If you weigh 50 kg on Earth, you'll weigh 50 kg everywhere else in the universe. That's because the amount of matter in you cannot change.
The drama club has 14 members. They need to raise $952.00 to attend a play at the Fox Theater. They already have $126 in their account. What is the least amount of money each student needs to raise in order to go to the play?
A. m ≥ 59
B. m ≥ 60
C. m ≥ 64
D. m ≥ 68
PLEASE HELP FAST!!!!!
Answer:
A. m ≥ 59
Step-by-step explanation:
What is 55/99 Rounded to the nearest half
Answer: 1/2
Step-by-step explanation:
Answer: 1/2 is your answer:)
Step-by-step explanation: 50 rounded to the nearest tenth is 50
99 rounded to the nearest tenth is 100 and
50 is half of 100:)
An art teacher buys 4 packs of oil paints. Each pack contains 18 tubes of paint. Which equations represent the total
number of tubes of paint the teacher bought? Check all that apply.
4x 18 = 72
18 + 18 + 18 + 18 = 72
22-4 = 18
18 + 4 = 22
72 - 18 = 4
I’m
Answer: it’s answer 18+18+18+18
Step-by-step explanation:it’s basically18 times 4
Answer:
4 × 18 = 72
18 + 18 + 18 + 18 = 72
72 ÷ 18 = 4
Step-by-step explanation:
Please help with the problem in the picture ^ I’ll give brainliest if you give me a small explanation! :)
Answer: B
Step-by-step explanation: if 24 to 16 is 3:2 then because this is directly proportional it would be that x is 6:4