Answer:
i hated this math in middle school-
Step-by-step explanation:
A group of students is timed while sprinting 100 meters. Each student’s speed can be found by dividing 100 m by their time. Is each statement true or false?
Select the correct choice for each statement then explain your reasoning.
1. Speed is a function of time.
2. Time is a function of distance.
3. Speed is a function of number of students racing.
4. Time is a function of speed.
Answer:
The true statements are (a) and (d)
Step-by-step explanation:
(a). Speed is a function of time : As seen from equation (1) Speed of the students varies according to the value of time. So, This a true statement.
(b). Time is a function of distance : Distance is not varying in the equation (1), it is fixed to be 100. So, time is not a function of distance because here the distance is made constant. So, This is false statement.
(c). Speed is a function of number of students racing : Speed is not depending on the number of students racing so sped is independent of the number of the students racing. Therefore, Speed is not a function of number of students racing. This is False statement.
(d). Time is a function of speed : As seen from equation (1) Time of the students varies according to the value of their speed. So, This a true statement.
The true statements are (a) and (d).
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Please Help!
For Jimena to be accepted into her favorite college, she will have to earn an entrance exam score at least 2 standard deviations above the mean. Assume entrance exam scores are normally distributed, with a mean of 790 and a standard deviation of 50. What exam score does Jimena need to be accepted at her favorite college?
690
890
740
840
890 is the answer hope I got it
help this is 7th grade mth
Answer:
y^8 goes to the last one
y^6 goes to the third one
y^5 goes to the second one
then the last one go to the first one
Answer:
(y)^-2 = 1/y^2, (y^3)^2 = y^6, y^8 -:- y^3 = y^5, and y^4 x y^4 = y^8
Step-by-step explanation:
When you divide y^8 -:- y^3, you subtract ^8-^3 = ^5, so its y^8 -:- y^3 = y^5
When you multiply y^4 x y^4, you add ^4 + ^4 = ^8, so it is y^4 x y^4 = y^8
When you multiply (y^3)^2, you multiply ^3 x ^2 = ^6, so its (y^3)^2 = y^6
And when you have a negative exponent,(^-2) you have to make it positive, so it would be y^-2 = 1/y^2
I need help ASAP
Brian has 5 marbles, Sarah has 9 marbles, Jimi has 4 marbles, and Juan has 6 marbles. They want to redistribute the marbles so that each person has the same number of marbles. If the marbles are redistributed, then how many should each person get?
Answer:
Answer is
(5 + 9 + 4 + 6)/4
= 24 / 4
= 6
Answer:
6
Step-by-step explanation:
5+4+9+6
9+15
24
24÷4=6
help me im stuck.....................
Answer:
1 minute = 4
Step-by-step explanation:
200 / 5 = 4
Simply find unit rate.
HELP! WILL GIVE BRAINLIEST IF CORRECT!
Answer:
First blank- $340
second blank- $400
Step-by-step explanation:
60/15=4
4 x 100(percent)=400
$400 is the total to get how much he still owes
400-60= 340
the table shows the probability for rain on different days what is the probability of rain on Monday and no rain on Tuesday.
Day /probability of rain
Monday/20%
Tuesday/30%
Wednesday/40%
Answers are
A 0.06
B 0.14
C 0.5
D 0.9
Answer:
A im pretty sure
Step-by-step explanation:
if it's not im sorry
Sally designs web pages for customers she charges $117.50 per webpage; however she must pay a monthly rental fee of $650 for office. Write an expression to determine her take-home pay after expenses. If Sally design 5 web pages last month what was her take-home pay after expenses?
Answer:
135.50 x 5 = y How much money she makes without paying rent
Step-by-step explanation:
y-650 = the amount of money sally has after paying rent
plz help!!! if both are answered= brainly
Answer:
The Slope of the table = 2
What equation has infinite many solutions?
1. 3(n+7)-6=2n+10+n
2. 3n-3=5(n+2)-2n
3. 2n+3(n-4)+5=5n-7
4. 2n-4=2n-2(n+2)
thank you :))
Find the surface area of the figure below. The face of each cube is 3 square units.
42
90
54
126
Answer:
54
Step-by-step explanation:
54
A number cube has sides numbered 1 through 6. The probability of rolling a 2 is 1/6.
What is the probability of not rolling a 2?
Enter your answer as a fraction, in simplest form, in the box.
please actually answer.
Answer:
5/6
Step-by-step explanation:
6/6 - 1/6 = 5/6
Please help. . . . . .
helppppp!
need helpp
Please answer if you know the answer.
Find x and give reasons.
help plz this is 7th grade math
one stone on easter island is 12 meters high. the nose of the statue is 3.3 meters long. If the proportional statue is only 10 meters high. How long will the nose be? write your answer in a decimal
Answer:
The nose will 2.75 meters long.
Step-by-step explanation:
Answer: 2.5 meters long
help me solve this pls i make u a brainliest if it correct
Answer:
10 5/6
Step-by-step explanation:
Footlocker buys sneakers for $60 each and marks up the price by 30% so they can make a profit. What is the selling price of the sneakers at Footlocker
Answer:
now it would be $78
This is hard help me if you want brainliest
PLZZ HELLLLLPPPPievjp
Find the percent of the number.
50% of 70 is
.
Question 2
Explain your method.
Answer:
35
Step-by-step explanation:
Using proportions, you are correct:
70/x = 100/50
cross multiply
100x = 3500
divide both sides by 100 to get your answer.
pls help 20 points
Adult tickets for a movie cost $8 and children's tickets cost $6. If two adults and
three children go to the movies, how much will they pay?
Answer: 34
Step-by-step explanation: 8 times 2 is 16 and 6 times 3 is 18. You add 16+18 and the answer is 34
Help me will give brainliest
Answer:
The first option is correct, 12/30 and 25/30
Step-by-step explanation:
To get common denominators, you need to find the GFC (greatest common factor) of 5 and 6, which is 30. Then you would need to make the fractions equal the same as the original fractions, by multiplying.
2/5 = ?/30 <- you can see that 30 is 6 times more than 5. so this means you multiply 2 by 6 to get 12. 12/30
5/6 = ?/30 <- you can see that 30 is 5 times more than 6. so this means you multiply 5 by 5 to get 25. 25/30
A line passes through the point (2,-6) and has an initial value of 6. What is the rate of change for this line?
A. -12
B. -6
C. -1/6
D. 6
-6
We assume "initial value" means the y-intercept is (0, 6). The rate of change is the "rise" divided by the "run" between the two points.
rise = -6 -6 = -12 . . . . difference of y-values
run = 2 -0 = 2 . . . . . . difference of corresponding x-values
rate of change = rise/run = -12/2 = -6
The rate of change of this line is -6.
How many minutes are from 5:32 Pm to 6:19 Pm?? PLEASEEEE HELP!!!! THIS IS URGENT PLEASEE HELP
Determine whether the representation is proportional.y= -9x
Answer:
Yes it is
Step-by-step explanation:
y=-9x means that for every x value, the y value decreases by 9, so it is proportional because the value of y decreases the same amount each time. For example, if x=1, y=-9. If x=5, y=-45, and so on.
can I please get help with it
Please help me with this
7. 12 * 6 = 72
8. 8.50 * 4 = 34
9. 365*3 = 1095
10. 6*11 = 66
11. 5*5 = 25
12. 70*8 = 560
Answer:
7) 72 inches in six feet
8) $34.00 for 4 shirts
9) 1095 days in 3 years
10) 66 cans in 11 boxes
11) 25 students in 5 groups
12) 560 pages in 8 notebooks
Explanation:
7) 12* 6= 72
8) 8.50* 4 = 34
9) 365 * 3 = 1095
10) 6 * 11= 66
11) 5 * 5= 25
12) 70 * 8= 560
sean earned $31,000 last year. if the first $25,000 is taxed at 9% and income above is taxed at 15%, how much does sean owe in tax?
$3,150
$3,550
$4,100
$4,320
The amount for Sean owe in tax will be $3,150.
What is mean by Percentage?A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.
We have to given that;
Sean earned $31,000 last year.
In the first $25,000 is taxed at 9% and income above is taxed at 15%.
Now,
Since, In the first $25,000 is taxed at 9%.
Hence, The amount of tax = 9% of $25,000
= 9/100 × $25,000
= $2,250
And, Income above is taxed at 15%.
Hence, The above income = $31,000 - $25,000
= $6,000
So, The tax for above income = 15% of $6,000
= 15/100 × 6,000
= $900
Thus, The total tax = $2,250 + $900
= $3,150
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