Answer:
so, 10 laps in 25 mins we want to make mins=1 so
10/25=2/5 times 5/5=2/5
if you multiply 2/5 by 2/2 then you get 4/10 and 4/10=0.4
the runner can run 0.4 or 2/5 lap in 1 minute
Step-by-step explanation:
it is the answer box I'm a genius
e Try Again The ratio of men to women working for a company is 4 to 5. If there are 243 employees total, how many women work for the company? women
find the perimeter of a square of side 10.5 cm
Answer:
P=42cm
Step-by-step explanation:
Solution: P =4a = 4 x 10.5 = 42cm
What is the simplified algebraic expression for x-(x+7)
In an examination for the final year students of a school, 60 offered History, 50, Economics and 48, Literature. 30 offered History and Economics, 16 offered History and Literature, 22 offered Economics and Literature. If 10 candidates offered all the three subjects. (a) find:
(1) the number that offered History only;
(ii) the number that offered Economics only
Answer:
i (history only60
ii(economics only 50
Someone help me with this pleaseeee
Answer: (A) x⁰ = 30⁰
Ok done. Thank to me :>
Nicole and Elena wanted to know if listening to music at a louder volume negatively impacts test performance. To investigate, they recruited 30 volunteers and randomly assigned 10 volunteers to listen to music at 30 decibels, 10 volunteers to listen to music at 60 decibels, and 10 volunteers to listen to music at 90 decibels. While listening to the music, each student took a 10-question math test. Given is computer output from a least-squares regression analysis using = volume and = number correct.
Predictor Coef SE Coef T P
Constant 9.9000 0.7525 13.156 0.0000
Volume - 0.0483 0.0116 -4.163 0.0003
S = 1.55781 R-Sq = 38.2% R-Sq (adj) = 36.0%
What is the P-value of this test?
Interpret the P-value of this test.
Assuming the slope of the true regression line relating
y = performance on the 10-question math test to x = volume of the music is _______, there is a _____ probability of getting a sample slope of ________ by chance alone.
In Hilliard School there are 650 students. Of the 650
students, there are 400 students who play at least one
sport. Write and solve a proportion to determine how
many students in a class of 30 students would play at
least one sport. (Round answer to the nearest whole
number.)
Answer:
It's 50 because I used the right answer hahahahah
25x - 80 = 120 cant figure this i need help please
Answer:
x = 8
Step-by-step explanation:
25x - 80 = 120
+ 80 + 80
25x = 200
/25 /25
x = 8
Check your answer:
25x - 80 = 120
25(8) - 80 = 120
200 - 80 = 120
120 = 120
This statement is correct
Hope this helps!
Answer:
8
Step-by-step explanation
PLS HELP ME, PLS THIS IS DUE FIRST CORRECT ANSWER GETS BRAINLIEST
Answer:
B
Step-by-step explanation:
B because you are flipping the -4 5/6.
Hope this helps! :)
As part of a visit, a veterinarian weighs each dog brought to her clinic. At the end of each day, she creates a histogram of all the dogs’ weights. The histogram she created on one particular day is shown.
How many observations are recorded in this histogram?
4. Earl still hates to wash dishes and take out the trash. He finds his own weighted coin, one that
will randomly land on heads 30% of time. He will flip a coin once for each chore and will
perform the chore if the coin lands on heads.
A.) what is the probability that Earl will get out of the doing both chores?
B.) what is the probability that Earl will have to take out the trash but will not need to wash dishes?
Answer:
49%
21%
Step-by-step explanation:
Hello!
This is a probability question.
There is a 30% chance they need to do the chore and a 70% chance they don't for every coin toss.
Let's put this into fractions. 30% = 3/10. 70% = 7/10.
Now, to calculate a compound probability, we need to multiply the probability of each of the outcomes of the events.
A)
We have two events here. One where he doesn't do the chore and the other where he also doesn't do the chore.
Both events on their own have a 70% chance of happening or 7/10. So we multiply both the numbers together to find the compound probability. 7/10 * 7/10 = 49/100. 49/100 = 49%.
B)
We follow the same guidelines here. The probability of not doing the chore is 70% or 7/10, and the probability of doing the chore is 30%, or 3/10.
Now you need to multiply both probabilities. 7/10 * 3/10 = 21/100. 21/100 = 21%.
Let me know if you have any questions.
Simplify the expression:
3x+b+p^2
Answer:
[tex]3x+b+p^2[/tex] is already simplified
Step-by-step explanation:
[tex]3x+b+p^2[/tex] is already simplified
Answer:
The equation is already simplified
Step-by-step explanation:
Nothing fuurther can be done to this equation
simplify 5/12 x 1/12
A. 1/5
B. 5/144
C. 12/60
D. 5
Answer:
B. 5/144
5 can't go in 144 evenly. so its leading to 5/144
Step-by-step explanation:
The answer would be B.5/144
5 1 5
---- x ----- = -----
12 12 144
12 x 12 = 144
What is the answer to this question?
Step-by-step explanation:
3gh² × 4g³h³
Expand
3 × 4 × g × g³ × h² × h³
To make it easier to understand
(3×4) × ( g × g³) × (h² × h³)
(12) × (g¹+³) × ( h²+³)
= 12g⁴h⁵
Basically, you add the indices of the given letters while also multiplying the whole numbers.
I hope you understand :)
Please be so kind as to mark me brainliest :)
11. Chad was driving at a constant speed. he drove 196 miles in 3.5 hours.
A. What was her speed in miles per hour?
Write an equation to show the relationship between t (time) and
d (distance traveled)
HINT: Distance = time x speed)
c. If she continues to drive at the same speed, how many miles can she go in 75 hours
d. After 7.5 hours, she decides to decrease her speed to 3/4 of her earlier speed. What is her
new speed?
Answer:
a - 56mi/h
b - confuzzled so heres the rearranged formulas?
speed = distance/time
time = distance/speed
distance = speed x time
c - 4200 miles
d - 42mi/h
Step-by-step explanation:
s=d/t
196/3.5=56
56x75=4200
1/4 of 56
56/4= 14
14x3=42
Divide. 8 / 95.44 Enter your answer as a decimal in the box.
Answer:
0.08
Step-by-step explanation:
8 / 95.44 = 0.08
Hope this helps!
Answer:
0.08
Step-by-step explanation:
Convert 13 hours 33 minutes to hours
Answer:
13.55 hours
Step-by-step explanation:
60 minutes is an hour so we divide the number of minutes( 33) by 60.
33 ÷ 60 =0.55
13 + 0.55 = 13. 55 hours
Nonsense will be Reported!!
Step-by-step explanation:
1. when x is 0
y will be
4x+2y=10
4(0)+2y=10
0+2y=10
collect like terms
2y=10-0
2y=10
divide both sides by 2
2y/2=10/2
y=5
so when x =0 y will equal to 5
2. when x is 1
y will be
4x+2y=10
4(1)+2y=10
4+2y=10
collect like terms
2y=10-4
2y=6
divide both sides by two
2y/2=6/2
y=3
so when x is 1, y is 3
3. when x is 2
4x+2y=10
4(2)+2y=10
8+2y=10
(CLT) 2y=10-8
2y =2
y= 1
Answer:
( x ,y) = ( 0, 5), ( 1, 3), ( 2, 1 ), ( 3, -1)
given equation: 4x + 2y = 10
rewrite it as:
2y = 10 - 4xy = 5 - 2xsolve:
when x = 0
y = 5 - 2(0)
y = 5
when x = 1
y = 5 - 2(1)
y = 3
when x = 2
y = 5 - 2(2)
y = 1
when x = 3
y = 5 - 2(3)
y = -1
TRUE OR FALSE??
3 Parallel lines A and B ore cut
by transversal X as shown
below.
A.The value of x can be found using
12x – 18 = 8x + 10.
B. Each of the marked ongles measures 56.
C. The marked ongles are classified as vertical
angles.
REWRITE THE FALSE STATEMENT TO MAKE IT TRUE
pls help this hw is due today!!
Answer:
Step-by-step explanation:
A. True. Vertical angles have equal measure.
B. False. 12x-18=8x+10 -> x=7 -> the angles measure 66 degrees.
C. True. They're formed by a pair of intersecting lines.
Which line segment is a radius of circle F?
FE¯¯¯¯¯
AC¯¯¯¯¯
DC¯¯¯¯¯
ED¯¯¯¯¯
Answer:
FE
Step-by-step explanation:
I took the test a while back and got this answer right.
Calculate the missing angles in these isosceles triangles
angle N and angle M has same value 32 degree because it is an isosceles triangle so the value is 116 degree
Let U = {English, French, History, Math, Physics, Chemistry, Psychology, Drama}, A = {Math, History, Chemistry, English}, B = {Psychology, Drama, French, Chemistry, English}, and C = {Physics, History, French}. Find the following. n(B u C)
We are provided with ;
[tex]{\sf{U=\{English,\: French,\: History,\: Math,\: Physics,\: Chemistry,\: Psychology,\: Drama\}}}[/tex] [tex]{\sf{A=\{Math,\: History,\: Chemistry,\: English\}}}[/tex] [tex]{\sf{B=\{Psychology,\: Drama,\: French,\: Chemistry,\: English\}}}[/tex] [tex]{\sf{C=\{Physics,\: History,\: French\}}}[/tex]And we need no find [tex]{\bf n(B\cup C)}[/tex] . At first Let me tell you that here [tex]{\sf (B\cup C)}[/tex] represents the union of the set B and C.And [tex]{\sf n(B\cup C)}[/tex] represents the cardinal no. of the respective set or no. of elements present in the respective set.So let's find the set [tex]{\sf (B\cup C)}[/tex] first
[tex]{:\implies \quad \sf B\cup C=\{Physics,\: Drama,\: French,\: Chemistry,\: English,\: Psychology,\:History\}}[/tex]
[tex]{:\implies \quad \bf \therefore \quad \underline{\underline{n(B\cup C)=7}}}[/tex]
Alternative Method :-As we know that ;
[tex]{\boxed{\bf n(A\cup B)=n(A)+n(B)-n(A\cap B)}}[/tex]Where [tex]{\sf (A\cap B)}[/tex] is the Intersection of A and B or the set of common elements of A and B. So now by same concept , now finding the intersection of B and C :-
[tex]{:\implies \quad \sf B\cap C=\{French\}}[/tex]
So , [tex]{\sf n(B\cap C)=1}[/tex] . Now , putting the values in the formula;
[tex]{:\implies \quad \sf n(B\cup C)=n(B)+n(C)-n(B\cap C)}[/tex]
[tex]{:\implies \quad \sf n(B\cup C)=5+3-1}[/tex]
[tex]{:\implies \quad \bf \therefore \quad \underline{\underline{n(B\cup C)=7}}}[/tex]
1. Find any three rational numbers between 2 and 3.
Step-by-step explanation:
9/4, 10/4, 11/4 are three rational numbers between 2 and 3
need help asap first to answer gets BRAINLIEST
Answer:
[tex]\sf 1.9 * 10^6 \ is \ greater \ than \ 3.56 * 10^4[/tex]
Explanation:
[tex]\sf 3.56\:\cdot \:10^4 = 35600[/tex]
[tex]\sf \:1.9\:\cdot \:10^6 = 1900000[/tex]
Look the the 'to the power' above 10. The greatest number to the power is the greatest number. Here 6>4
Therefore, [tex]\sf 1.9 * 10^6 \ is \ greater \ than \ 3.56 * 10^4[/tex]
Answer: 1.9 × 10^6 is greater
Step-by-step explanation: why its because when you multiply them to each other there number amount is higher hence that's why I know.
The population of a school is 800 and is increasing at a of 2% per year , 6 years
My answer is assuming that you want the final population after the 6 years since you did not tell me the question.
If it increases 2% a year then it can be expressed in a exponential function.
Result=800*(1+0.02)^6
Result≈900.93
And since there cannot be part of a student, we round down and get the answer of 900 students after the sixth year.
I will mark brainiest if you can answer the question correctly!! :)
7. Write the equation of the quadratic given the following 3 points.
(0, -1), (4,51), (-2,9)
A) y = 3x2 - X-1
B) y = 3x2 + x - 2
C) y = 2x2 + x - 1
D) y = 3x2 + x - 1
Answer:
D
Step-by-step explanation:
Sub (0, -1) into 4 choices, Only A, C, D work.
Sub (-2, 9) into A, C, not work.
Sub (4, 51) into D for checking, it works
Five times the product of two numbers x and y divided by a third number z
Answer:
The product of two numbers can be written as "x" and "y", and this product is multiplied by 7. Then, five is divided by "z" which is multiplied by 3. So, the answer is 7(xy) - 5/3z.
Step-by-step explanation:
Find the area of the polygon. 4 cm 8 cm 8 cm 2 cm 2 cm 4 cm . . . Question content area right Part 1 The area of the polygon is
Answer:
the answer is 28 bc 2+2+4+4+8+8=28 so you answer will be twenty eight centi meters
20 POINTS TO WHO HELPS ME SOLVE THIS QUESTION
which rectangle has side lenghths of 5 units and 4 units
Answer:
A(3,3), B(3,7), C(8,7), D(8,3)
Step-by-step explanation:
it was the correct answer hope this helps!!
