Step-by-step explanation:
A motorist drives 146km at a certain average speed she then increases the speed by 9km/h and takes the same time to travel the next 164km.
find her speeds for both parts of the journey.
:
let s = his original speed
then
(s+9) = the increased speed
:
Write a time equation; time = dist/speed
146%2Fs = 164%2F%28%28s%2B9%29%29
cross multiply
164s = 146(s+9)
164s = 146s + 1314
164s - 146s = 1314
18s = 1314
s = 1314/18
s = 73 km/h is his original speed
:
Weekly wages at a
certain factory are
normally distributed with a mean of
$400 and a standard deviation of $50.
Find the probability that a worker
selected at random makes between
$250 and $300.
Answer:
2.35% chance
Step-by-step explanation:
in a normally distributed graph with a standard deviation of $50 $250 and $300 contain 2.35% of the data.
2.15% chance.
in a normally distributed graph with a standard deviation of $50 $250 and $300 contain 2.15% of the data.
How do you calculate probability?
The probability of an event can be calculated by the probability formula by simply dividing the favorable number of outcomes by the total number of possible outcomes.
Please check the attached file for a complete answer.
Learn more about probability at
https://brainly.com/question/24756209
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what is the expression for this:
12 less than 4 times a number
Answer:
It would be 4n - 12.
Andrew McCutchen hit 18 homeruns in 9 baseball games. At this rate, how many homeruns will he have hit
in 11 baseball games?
Please show how to do it
Answer:
if it's 18 home runs in 9 baseball games
then you're dividing 18 by 9 which is 2 home runs for every 9 baseball games
to prove if you're right (9×2=18)
if it's 11 baseball games then 11×2=22
Hope It Helps ☺️
Andrew McCutchen hit 18 a number of homeruns in 9 baseball games. . which is determined by the given proportion.
What is the proportion?A mathematical assessment of two numbers is called a proportion. If two sets of provided numbers rise or fall in the same relation, then the ratios are said to be directly proportional to each other.
Given that he hit 18 homeruns in 9 baseball games.
Let the number of homeruns would be x will he have hit in 11 baseball games.
According to the given question, we can write a proportion as
18 homeruns : 9 baseball games = x homeruns : 11 baseball games.
18 / 9 = x / 11
Apply the cross-multiplication operation,
18 × 11 = 9x
9x = 198
x = 198 / 11
Apply the division operation,
x = 18
Therefore, he hit 18 a number of homeruns in 9 baseball games.
Learn more about the proportion here:
brainly.com/question/1504221
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Find the most common factor of 120 and 300
Answer and Step-by-step explanation:
The most common (greatest) factor of 120 and 300 is 60.
60 goes into both of them, and it is the greatest number in there list of factors that would go into both of these numbers.
#teamtrees #WAP (Water And Plant)
PLEASE HELP ME PLEASEEEEE
Answer:
56.52 units³
Step-by-step explanation:
[tex]v = \pi {r}^{2}h[/tex]
r = 3 units ; h (height) = 2
V = 3.14 × 3² × 2
= 3.14 × 9 × 2
= 56.52 units³
Nb gn njjrndndnfnfjdjfjfi
Answer:
jkbgf7jhfdt7jceru9onvdtihdr
If you order 3 pizzas, you will get 18 slices of pizza. How many slices are there in one pizza?
Answer:
There are 6 slices on each pizza
Step-by-step explanation:
Because 18 divided by 3 is 6
HELP ASAP PLEASE EXPLAIN THOUGH
Answer:
35 times, or D
Step-by-step explanation:
A bag contains 5 red marbles, 6 blue marbles, 3 green marbles, 4 black marbles, and 2 yellow marbles. A marble will be drawn from the bag and replaced 100 times. What is a reasonable prediction for the number of times a green or black marble will be drawn?
A quick lesson on probability:
The probability of an event is: (the number of ways what you want can happen) / (total number of outcomes possible). For example, in a coin flip, there is 1 way to get heads, and 2 possible outcomes. Thus, the possiblity of flipping a coin and getting heads is:
(1 way to get heads) / (2 possible outcomes) = 1/2
Then, if we were to flip the coin 100 times, we would expect about 1/2 of the times to be heads, so we should expect heads 50 times.
On to the problem.
There are 3 green marbles and 4 black marbles, so there are 7 ways to draw a green or black marble.
Then, there are 5 + 6 + 3 + 4 + 2 = 20 possible outcomes.
Using the formula to find the probability, substitute the values we just found.
(the number of ways what you want can happen) / (total number of outcomes possible) =
(7 ways to draw a green or black marble) / (20 marbles that can be drawn) = 7/20 chance of getting a green or black marble.
Then, because there is a 7/20 chance of getting what we want, and there are 100 draws, we can say that an we should get green or black
7/20 * 100 = 35 times, or D
Feel free to ask any questions! :)
Alicia bought a notebook and several erasers at the student store. The graph shows the relationship between the total cost of her items and the number of erasers she purchased.
What is the cost of each eraser?
Answer:
1.50
Step-by-step explanation:
In three days, the chickens on Nigel's farm can lay 33 eggs. How many eggs will they lay in 11 days?
Answer:
Eggs laid by chicken in 11 days = 121 eggs
Step-by-step explanation:
Eggs laid by the chickens in 3 days = 33
Average rate at which the chickens are laying the eggs = [tex]\frac{33}{3}[/tex]
= 11 eggs per day
At the same rate number of eggs laid by the chickens in 11 days = Rate × Number of days
= 11 × 11
= 121 eggs
Therefore, eggs laid by chicken in 11 days = 121 eggs
A large group of friends needs to call a taxi service to get home. The taxi cab company charges $2 per mile
Answer:
36 dollars per person and they all will pay 2 dollars each the large group will hit a wall
Is the following expression greater than, less than, or equal to zero? (a^2+b^2)/(a^2+b^2+1)
so I think it's equal to but can someone verify it for me?
Answer:
is equal cuz a will be cut and be will be cut so what is left 1 is left so it is equal plz Mark me as the brainliest and thank me
a b c or d thanks for helping me
Answer:
either A,B,C, or D?
Step-by-step explanation:
Now use the length of the vertical line segment and the horizontal line segment to find the distance between G and H. Substitute these values in the equation for the Pythagorean Theorem.
Answer:
please first tell me the numbers written
Triangles 2.0........
Answer:
triangle STU and WEK are CONGRUENT
ST=WK SIDE OF A CONGRUENT TRAINGLE ARE EQUAL
2M=N.....1
SU=WE
3M+5=N+8
3M+5=2M+8
3M-2M=8-5
M=3
NOW
N=2M=2×3=6CM
TU=WK=N=6CM.
Which pair of adjacent angles is supplementary?
A. Pair A
B. Pair B
C. Pair C
D. Pair D
Answer:
correct answer
Step-by-step explanation:
Graph this: y = 2sIn(x) - 3
Insert picture of graph
Answer:
We have the function:
f(x) = 2*sin(x) - 3
To graph this type of functions is useful to understand the parts of the function.
A general one is written as:
g(x) = A*sin(w*x + p) + M
where:
A is the amplitude
w is the angular frequency.
p is the phase
M is the midline.
Then in this case we have an amplitude of 2, an angular frequency of 1, a phase of 0 radians and the midline y = -3
Now we can evaluate the function in different points and (knowing how a sine function behaves) connect them, the graph will look something like this:
Is this linear or nonlinear?
y + 7 = 2x + 3
Answer:
I think it is tho
let's wait for another answer
convert into 24 hours clock.4.17pm
Answer:
16:17
Step-by-step explanation:
when it's pm, add 12 to the 12 hr time
Find the unknown value in the pair of equivalent fractions.
3/4 = ?/100
Answer:
75.
Step-by-step explanation:
100÷4= 25
25×3= 75
75/100
Answer:
75
Step-by-step explanation:
4 x 25 = 100
3 x 25 = 75
or
100/4 = 25
25 x 3 = 75
Which is a true statement about the transformation shown?
Answer:
A
Step-by-step explanation:
It's not a reflection because then it would be flipped and M and N would switch places
It's a translation and everything is the same length in terms of each other so
A translation with the pre and after image being congruent
Choice A
Enter the value of ( – 8)(15)( - 1/2)
A
60
B
- 60
С
240
D
-240
Find x and y in the given figure
Answer:
x= 70°, y=40°
Step-by-step explanation:
2x=140
x= 70
y= 180-140= 40
140 + y = 180
y = 180 - 140
y = 40
2x + 40 = 180 (Angle Sum Property)
2x = 180 - 40
2x = 140
x = 140/2
x = 70
X = 70
Y = 40
If gorge had a gf for 4 mo. then on their 5 mo he dumped her. how long did gorge have a gf?
Answer:
For 4 months. Also, is this a real life problem that happened to you??
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
Mr. Vernon takes a train for 188 miles. Then he rides a subway for 9 stops. Each stop is 2 miles apart. How far does he travel.
Answer:
206 miles
Step-by-step explanation:
9 stops * 2 miles = 18 miles on the subway
add the 188 miles traveled by train
188 + 18 = 206 miles
Find the slope given
the ordered pairs:
(-3,-2) and (-3,-5)
Step-by-step explanation:
[tex] - 2 - - 5 \\ [/tex]
[tex] \div - 3 - - 3[/tex]
What is the measure of the angle 4?
A triangle has two angle measures of 20 degrees and 30 degrees. Find the third angle. This triangle is a(n) ________ triangle
Question 2 options:
A. acute
B. obtuse
C. right
D. it does not make a triangle
Answer:
Obtuse
Step-by-step explanation:
x = missing angle
20+30+x=180
50+x=180
x=130
90<130
Thus, the triangle is obtuse
What is congruent in this problem?
Answer:
Step-by-step explanation:
SVT and TVU
Hope that helps!
please help i don't know what I'm doing
Answer:
11 is the answer
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
to find one of the addend
subtract another one of the addend by the sum
eg : 9 + __= 20
20 - 9 = 11
now we can check
9 + 11 = 20
hope this helps
thanks bye