Hello!
10 km in 2.5h.
2,5h = 150mn
150mn -> 10km
1 mn -> 10/150
60mn -> (10*60)/150
=>4km/h
Jason ran 7.5 km in 2h.
7,5 /2 =3,75
=> 3,75km/h
Olga ran 9.5 km in 2.25h.
2,25h = 120 + 0,25 * 60 =>135mn
135mn -> 9,5km
1mn -> 9,5/ 135
60mn -> (9,5*60)/ 135 =>4,22km/h
Who had the fastest average speed.: Olga
Please help, will give brainliest :)
Answer:
1. 2x + 3y = 25
2. Multiply the first equation, x + y = 11, by 2, to cancel out x
3. 8
4. 3
On Tuesday afternoon at camp, Tiana did archery and sailing before dinner. Archery started at 12:30 P.M. Tiana spent 55 minutes at archery and 55 minutes sailing. What time did sailing end?
Answer:
2:20 p.m.
Step-by-step explanation:
Let's start with what we know
Tiana starts at 12:30 and spends 55 minutes at archery and 55 minutes sailing.
This question wants us to find what time does sailing end. To find this, we add 12:30 with 55 minutes for archery, then another 55 minutes for sailing
So,
12:30 + 55 minutes = 1:25
Then,
1:25 + 55 minutes = 2:20
So, she will end sailing at 2:20 p.m.
If you have any questions, let me know in the comments! If you could mark this answer as brainliest, I would greatly appreciate it! :D
An investment pays 6% interest compounded weekly. What percent, as a decimal, is the effective annual yield?
Answer:
Is it .06
I just learned that when you have a percent and you want it to be a decimal, always move % 2 places to the left .
In the game, your score grew by 200 points each time you scored. Two expressions below represent your echoes after 12 hits. Find both.
A) 200 + 200 + - - - + 200 +200
—————————————————
12times
B) 200 ⚫️ 200 ⚫️ - - - ⚫️ 200 ⚫️ 200
—————————————————
12times
C) 200 ⚫️ 12
D) 200 + 12
(I think the black circles stand for times...
also anyone who helps me thank you so much, I’m honestly just trying to make it through school at this point. And I’m just a freshman in high school:D
Answer:
b
Step-by-step explanation:
Answer:
a and c
Step-by-step explanation:
If a person drives a car in the United States, that person must drive on the right side of the road. Kaylee drives a car in the United States.
A. Kaylee has her driver's license.
B. Kaylee must drive on the left side of the road.
C. Kaylee must drive on the right side of the road.
D. Kaylee must park her car on the right side of the road.
A whole number is 6 more than 2 times another number. The sum of the two numbers is less than 50. This can be written in an inequality as x + 2x + 6 < 50, where x represents the smaller number. From the set {13, 14, 15, 16, 17}, the values of x for which the inequality holds true are {16, 17} {13, 14} { 13, 14, 15} {15, 16, 17} . Reset Next
Answer:
Dont really see a question
Step-by-step explanation:
its 21
21x2 is 42+6 is 48 which is 2 less than 50
Four (4) Vikings tennis players took their
statistics midterm exam early, so that they can
attend Ojai tournament. The mean on their
exam is 84 and the variance is 0 (zero). What
score did each of the 4 students earn?
Using the statistical concepts of mean and variance, it is found each of the 4 students earned a score of 84.
What are the mean and the variance of a data-set?The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations.The variance is given by the sum of the differences squared of each observation and the mean, divided by the number of observations.In this problem, we have that:
The mean is of 84.The variance is of 0, which means that the sum of the differences squared of each observation and the mean is of 0, hence all students scored the mean, that is, they had a score of 84.More can be learned about the statistical concepts of mean and variance at https://brainly.com/question/25639778
What is the slope of the line through the points (10,4)and (7,3) write your answer in simplest form
Answer:
1/3
Step-by-step explanation:
to find the slope of two points the formula is (y2-y1)/(x2-x1) so if you plug in the numbers given into that formula you get (3-4)/(7-10), then simplifying that you get (-1)/(-3) and the negatives cancle out so you get 1/3
The slope is the inclination of a line and can be calculated by the ratio of the difference of y's coordinate to x's coordinate thus the slope of the line passing through points (10,4)and (7,3) is 1/3.
What is the slope?A slope is a tangent or angle at a point and a slope is the intensity of inclination of any geometrical lines . The slope could be positive or negative.
The slope of the lines passing through points (x₁, y₁) and (x₂, y₂) is,
⇒ (y₂ - y₁)/(x₂ - x₁)
As per the given points (10,4)and (7,3)
Slope = (3 - 4)/(7 - 10)
Slope = -1/-3 = 1/3
Hence "The slope is the inclination of a line thus the slope of the line passing through points (10,4)and (7,3) is 1/3".
To learn more about slopes,
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Three siblings have decided to pool their money to buy their parents a gift for their anniversary. They need to save $224.50 in total. Each sibling has a different rate of pay and works a different number of hours. Nancy earns $10.70 per hour. • Marc earns $11.30 per hour and always works 5 more hours per week than Nancy. • Kara babysits and earns $9 per hour and always works 2 hours less per week than Nancy. How many hours in a week must each sibling work in order to reach their goal of $224.50?
The number of hours each sibling must work each week to reach their goal of $224.50 is as follows:
Nancy: 6 hoursNancy: 6 hoursMarc = 11 hoursNancy: 6 hoursMarc = 11 hoursKara = 4 hoursWeekly calculation and of work doneThe total amount of money that needs to be saved = $224.50
Total amount of money Nancy earn = $10.70 per hour.
Total amount of money Marc earn = $11.30 per hour
Total amount of money Kara earn = $9 per hour
Number of hours Nancy works = X hours
Number of hours Marc works = 5 + X hours
Number of hours Kara works = X - 2 hours
To calculate the amount each earn according to the number of hours they worked the following is carried out;
10.70(X) + 11.30( 5+X) + 9(x-2) = 224.50
10.70x + 56.5 + 11.30x + 9x - 18 = 224.50
Collect the like terms together
10.70x+11.30x+9x +56.5-18 = 224.50
31x + 38.5 =224.50
31x =224.50 - 38.5
31x = 186
X = 186/31
X = 6
Therefore Nancy works for 6 hours
Marc works for 5 + X = 5+6 = 11 hours
Kara works for x- 2= 6-2 = 4 hours
Learn more about hours here:
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James has $400 in a savings account. He wants to keep at least $225 in the account at all times. Each time James goes to play laser tag, he pays $35. Which graph shows how many times James can go to laser tag?
Answer:
5 times
Step-by-step explanation:
$400 - $225 = $175
$175 ➗ $35 = 5
Answer:
C is the correct answer
Step-by-step explanation:
For every 4 hours Michelle works, she gets a 15 minute break. Which equation shows the proportional relationship between the number of hours she works w and the number of hours of break time she gets b?
Answer:
b=8w
Step-by-step explanation:
(1/4 hour) * b = (4 hour) * w
b = 16w
Find the length of a rectangle with a perimeter of 148 inches and width of 36 inches.
inches
Answer:
Perimeter of rectangle = 2L + 2W
2L + 2 * 36 = 148
2L = 148 - 72
2L = 76
L = 38 inches
[tex] \\ [/tex]
To find:-Length of rectangle[tex] \\ [/tex]
Solution:-We know:-
[tex] \bigstar \boxed{ \rm Perimeter \: of \: rectangle = 2(length + width)}[/tex]
[tex] \\ [/tex]
So:-
[tex] \\ [/tex]
[tex] \dashrightarrow \sf 148 = 2(length + 36) \\ [/tex]
[tex] \\[/tex]
[tex] \dashrightarrow \sf 148 = 2(length) + 2(36) \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \sf 148 = 2(length) + 2 \times 36 \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \sf 148 = 2(length) + 72 \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \sf 148 = 2length + 72 \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \sf 148 - 72= 2length \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \sf76= 2length \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \sf 2length = 76 \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \sf length = \dfrac{76}{2} \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \sf length = \cancel \dfrac{76}{2} \\ [/tex]
[tex] \\ [/tex]
[tex] \dashrightarrow \bf length = 38 \: inches[/tex]
Enter the phrase as an algebraic expression.
the sum of 173 and h
Answer:
173 + h
Step-by-step explanation:
173 + h
Tristi contributes a set percentage of her gross pay to a 401k account and will have a total of $133,473.00 by retirement. Tristi's employer also contributes a set percentage, which will increase her total to $262,612.00. What is the percent increase between the total without and the total with Tristi's employer's contribution? Round your final answer to the nearest whole percent. (1 point)
59%
63%
81%
97%
Answer:
97%
Step-by-step explanation:
I got 63% wrong :') it showed that 97% was right.
The percent increase between the total without and the total with Tristi's employer's contribution is 97% option (D) is correct.
What is the percentage?
It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.
It is given that;
Tristi contributes a set percentage of her gross pay to a 401k account and will have a total of $133,473.00 by retirement.
Using the formula of percentage increase:
= [($262,612.00 - $133,473.00)/ $133,473.00] x 100
= 97 %
Thus, the percent increase between the total without and the total with Tristi's employer's contribution is 97% option (D) is correct.
Learn more about the percentage here:
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please answer
: B
tysm
Answer:
-2
Step-by-step explanation:
(7 - 0)/(0 - 3.5) = -2
Answer: -2
Step-by-step explanation: Remember rise over run. Two points you are given from the graph are (0,7) and (1, 5).
[tex]\frac{7-5}{0-1} = \frac{2}{-1} = -2[/tex]
A student spend ¼ of his pocket money on books and ⅓ on a shirt. What fraction remains?
Compare the behavior of exponential functions to the limits of their situations.
Answer:
see below:
Step-by-step explanation:
What is the behavior of exponential functions?
For exponential functions, we see that the end behavior tends to infinity really fast. The larger the growth factor, which is the base of the exponential function, the quicker we get to infinity.
The limit of an exponential function is equal to the limit of the exponent with same base. It is called the limit rule of an exponential function.
for a comparison lets look at the exponentila function y=[tex]x^{4}[/tex]
the graph of this would look very similar an x squared parabola and would of course be increasing at an exponential rate
the limit would be equal to infinity
[tex]\lim_{x \to \infty} x^{4}[/tex] since the limit is equal to the limit of the exponent we would simply get x to the power of infinity which is infinity
hope this helps! if there is a specific comparison you need comment on this
Help me please please I beg
Answer:
cm
Step-by-step explanation:
if using centimeters to determine the perimeter then it's just cm.
If you're using centimeters to determine area it would be cm^2.
If you're using centimeters to determine volume it would be cm^3.
I hope this helps you. Have a blessed day.
:);)
Solve the division equation using the number line.
A number line from zero to one partitioned into five parts. Each of those parts is partitioned into six parts. Below is the equation one fifth divided by six equals blank.
one thirtieth
11
six thirtieths
30
Answer:
1 thirtieth
Step-by-step explanation:
1/5 ÷6 = 1/30
Answer:
1 twelfth
Step-by-step explanation:
1/4 Devided by 3 is 1/12
what is the solution to the equation e3x = 12
Answer:
x = 4
Step-by-step explanation:
Going to assume thats an extra e
3x = 12
Divide 12 by 3
x = 4
Answer:
x=0.83
Step-by-step explanation:
got it right on the test
If x = 9 units and h = 4 units, then what is the area of the triangle shown above?
Answer:
18
Step-by-step explanation:
The area of triangle is b*h/2
so it will be 36/2 which will be 18
Please mark as Brainliest
Which of the following statements is TRUE about the midline of a trapezoid?
A. It bisects only one of the legs.
B. It is perpendicular to the beses.
C. It connects any two corners of the trapezoid.
D. Its length is half the sum of the mercutrements of the bases
Answer:
C will be the rightful answer
Solve the problem algebraically 4∣x+9∣−2>10
Answer:
x is (-infinite, -12) and (-6, infinite)
Step-by-step explanation:
Meaning that x is less than -12 and greater than 6. I think...
Find the slope of the line passing through the points (-7 ,-7) and (-3,6)
Answer:
14/4 or 7/2
Step-by-step explanation:
6 - (-7)
---------
-3 - (-7)
When you subtract a - its really just adding
Help me please please I beg find the area of the figure
Answer:
12 4/5
Step-by-step explanation:
Miss Ong bought some highlighters. Each highlighter costs $2. For every 3 highlighters bought, one was given free. If she had spent $92, how many highlighters did she buy altogether?
Answer:
She bought 46 highlighters and was given 15 for free
Step-by-step explanation:
Divide 92 by 2, which gives you 46
46 is the number of ens you bought
next Divide 46 by 3 to calculate how many she was given for free
46 ÷ 3 = 15.333
you will round down which gives you 15.
Write down all the even numbers less than 100 that are prime numbers
Answer:
The answer is only 2 because even numbers are divisible by 2, also 2 is a prime number.
simplify the ratios
200g : 3kg
Answer:
66.6:1
Step-by-step explanation:
Please help with math (35 points)
Question 1 Answer choices. 76° 70° 72° 79° 82°
Question 2 Answer choices. x = 7 x = 8 x = 10 x = 9 x = 12
Applying the inscribed angle theorem, we have:
1. m∠ABC = 79°
2. x = 10
What is the Inscribe Angled Theorem?The inscribed angle theorem states that the measure of an inscribed angle = 1/2(measure of intercepted arc).
Thus:
1. Find m∠ABC:
m∠ABC = 1/2(measure of arc AC) [inscribed angle theorem]
Substitute
m∠ABC = 1/2(360 - 94 - 108)
m∠ABC = 79°
2. Find the value of x:
m∠DEF = 1/2(DF) [inscribed angle theorem]
Substitute
51 = 1/2(14x - 38)
2(51) = 14x - 38
102 = 14x - 38
102 + 38 = 14x
140 = 14x
10 = x
x = 10
Learn more about inscribed angle theorem on:
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PLEASEEEE HELP I NEED A ANSWER ASAP!!!!!!!
David has $520 to spend at a bicycle store for some new gear and biking outfits. Assume all prices listed include tax.
He buys a new bicycle for $303.93.
He buys 4 bicycle reflectors for $10.99 each and a pair of bike gloves for $25.25.
He plans to spend some or all of the money he has left to buy new biking outfits for $73.43 each.
Write and solve an inequality which can be used to determine xx, the number of outfits David can purchase while staying within his budget.
Answer:
520 - 303.93 - (10.99 * 4) - 25.25 - 73.43x ≥ 0
-
1) Parentheses
520 - 303.93 - 43.96 - 25.25 - 73.43x ≥ 0
-
2) Combine like terms
146.86 - 73.43x ≥ 0
-
3) Get the variable term alone
-73.43x ≥ -146.86
-
4) Divide to solve
x ≤ 2
** dividing by a negative number, the inequality sign flips **
ANSWER :
x ≤ 2
Step-by-step explanation:
303.93+(4×10.99 )+25.25+73.43x = 520
303.93 + 43.96 + 25.25 + 73.43x = 520
373.14 + 73.43x = 520
73.43x = 520 - 373.14
73.43x = 146.76
x = 146.76 ÷ 73.43
x = 2
x ≤ 2
