Time spent on aerobics is 150 minutes per week and time spent on weight training is 100 minutes per week
Solution:
Given that,
Kay spends 250 min/wk exercising
Therefore,
Exercising = 250 minutes per week
Ratio of time spent on aerobics to time spent on weight training is 3 to 2
Aerobics : weight training = 3 : 2
Let the time spent on aerobics be 3x
Let the time spent on weight training be 2x
Thus,
3x + 2x = 250
5x = 250
x = 50
Thus,
Time spent on aerobics = 3x = 3(50) = 150
Time spent on weight training = 2x = 2(50) = 100
Thus, Time spent on aerobics is 150 minutes per week and time spent on weight training is 100 minutes per week
Jocelyn estimates that a piece of wood measures 5.5 cm. If it actually measures 5.62 cm, what is the percent error of jocelyns estimate?
Answer:
12%
Step-by-step explanation:
So 5.5 to 5.62 is .12
Then calculate the difference of 5.5 *.12=0.66
Then do “0.66 is what percent of 5.5?”
The answer is 12%
Thank you for reading, and mark this brainliest
Tony has x quarters. Jane has three more quarters than Tony. Rob has twice as many quarters as Jane. Together, Rob and Jane have $4.50 in quarters. Complete each statement. (A) The expression x + 3 represents the number of quarters Jane has. (B) The expression x – 3 represents the number of quarters Rob has. (C) Tony has quarters.
Answer:
x = 3 quarters
Step-by-step explanation:
Tony = x quarters
Jane = (x + 3) quarters
Rob = 2(x + 3) quarters
Rob and Jane have $4.50 in quarters.
$1 = 4 quarters.
$4.50 = ( 4 × 4.5 ) quarters
= 18 quarters.
(x + 3) + 2(x + 3) = 18
x + 3 + 2x + 6 = 18
3x + 9 = 18
3x = 18 - 9
3x = 9
x = 9/3
x = 3
(A) The expression x + 3 represents the number of quarters Jane has. YES
x + 3
= 3 + 3
= 6 quarters
(B) The expression x – 3 represents the number of quarters Rob has.
NO
(C) Tony has quarters.
Tony = x quarters
= 3 quarters
Rob = 2(x + 3) quarters
= 2(3 + 3) quarters
= 2(6) quarters
= 12 quarters
Answer:
(A) The expression x + 3 represents the number of quarters Jane has.
B) The expression 2(x+3) represents the number of quarters Rob has.
(C) Tony has 3 quarters.
Step-by-step explanation:
A right square pyramid is shown. The height of the pyramid is 6 units. The distance from the center of the base of the pyramid to vertex D is 2.5 units, as shown. Find the length of segment AD, in units.
Answer:
AD is 6.5 units
Step-by-step explanation:
Find the diagram attached.
From the diagram, you can see that the dotted triangle is a right angled triangle with side AD as the hypotenuse.
To get AD, we will use the pythagoras theorem as shown;
Hyp² = Opp² + Adj²
AD² = 6²+2.5²
AD² = 36 + 6.25
AD² = 42.25
AD = √42.25
AD = 6.5
Hence the measure of length segment AD is 6.5 units
What is the domain of a cube root function?
A. all integers
B. all positive numbers
C. all real numbers
D. all negative numbers
Answer:
C. All real numbers
Step-by-step explanation:
A_____number can be written as a ratio of two integers in the form A/B with B ≠ 0.
large
rational
common
irrational
The four members of the "Fantastic Four" made 40 cookies each for the bake sale. They know that 35% of their cookies are chocolate chip.
How many chocolate chip cookies were made?
Answer:
56 Chocolate Chip cookies
Step-by-step explanation:
To find the answer first add up all of the cookies, in this case, 40+40+40+40 witch equals 160. then find 35% of that. This can be done by dividing 160 by 100 to get 1% then multiplying that by 35 to get 35% witch is 56. Therefore you have 56 Chocolate Chip cookies.
Identify the slope of the table
Answer:
The alop is 4. Glad this helps.
Answer:
the slope is 4
Step-by-step explanation:
Suppose y varies directly with x and y = 72 when x = 6. What direct variation equation relates x and y? What is the value of y when x = 10?
I know that it is 12x but for some reason there is no result in the answer choices.
hello, how to do 15(d)? :)
Answer:
Q15.d) 11.8L
Step-by-step explanation:
Please see the attached pictures for the full solution. (Picture 1 &2)
I have also attached the workings for part a-c from pictures 3 and onwards.
Keith made $65 for 5 hours of work. At the rate, how much would he make for 18 hours of work?
Answer:
234
Step-by-step explanation:
65 x
--- = ---
5 18
|) Mei Li is going orange
picking. She is choosing
between two orange
orchards. The cost of a
basket of oranges at each
orchard is shown.
Which orchard should Mei
Li choose? Explain.
Answer:
Annie's Orange Grove
Step-by-step explanation:
* you need to find out how much each pound of oranges cost at both orchards.
* to do so you take the total amount of money and divide it by the number of pounds you get.
1) 7.25 ÷ 20 = .36
2) 5 ÷12 = .4
* as you can see .36 is less than .4 and therefore is the better deal.
What is the slope of this line?
A. 1/4
B. 4
C. 2
D. -4
B. 4
Step-by-step explanation:
Since it is going up by 4 and moves to the right by 1 so it would be 4/1 which can also be marked as 4.
Describe the location where all 3 inequalities may be satisfied on the following slide.
there is no pics
Answer:
the big moon is a good place to set your location
Answer:
Hey im sorry but we can help you because the question doesnt make sense without picture
Step-by-step explanation:
waht is 8/5 times 7/4 pleeaaaaseeee help LAST QUESTION PLZ
Answer:
below
Step-by-step explanation:
improper fraction: 14/5
as a decimal: 2.8
proper fraction: 2 4/5
Can whoever answers this give a full explanation of what numbers i'm supposed to put (screenshot is there)
Long division is easier than you think. Here's how to solve this problem:
1. See how many times 36 can go into 66.
Multiply until you reach a number that is closest (or exact) to 66.
36 x 1 = 36; 36 x 2 = 72.
72 is over 66, so 2 doesn't work. Therefore, we'd put "1" in the first space on the shelf (right above the 6).
2. Subtract.
Now that we have "1" on the shelf, you need to subtract 36 by 66. We do this because 36 x 1 is 36. If it were the number "2" on the shelf, we'd subtract 72, and so on.
66 - 36 = 30.
3. See how many times 36 can go into 30.
Since it can't go into 30, we bring the 3 down (hence the arrow pointing down). The number is now 303.
4. See how many times 36 can go into 303.
I won't write it all out, but after multiplying 1-7 by 36, we find that the closest solution is 36 x 8 = 288.
We put "8" on the shelf, next to "1".
5. Subtract.
Now that "8" is on the shelf, we subtract 288 by 303, which gives us 15.
Since 36 cannot go into 15, and there are no more numbers we can drag down, your remainder is 15.
Your answer is:
36 R 15
The first two boxes under 663 should be filled with 36, the next three under that should have 303, the next three should have 288, and the final two boxes should have 15.
I hope this helped!
у= 5х – 3
3х – у = -1
Whats the value of y?
Answer:
(2,7) x=2 y=7
Step-by-step explanation:
PLEASE HELP
Write the equation of the line that is parallel to
y = 3x - 4
and that has a y intercept or 5.
WILL MAKE U BRAINLIEST
Answer: m
=
3
Step-by-step explanation:
At the beginning of the month, Arnold’s bank account balance was $217.25. During the month he made deposits of $49.58 and $105.75 and a withdrawal of $25.45. What was Arnold’s bank balance at the end of the month?
Answer:
He has $347.13
Step-by-step explanation:
217.25+49.58+105.75-25.45=347.13
4x^2 + 12xy + 9y^2
Can someone answer this and show the work?
ANSWER:
=(2x+3y)^2
WORKINGS:
4x^2+12xy+9y^2
2 =(2x)^2
2 +2(2x)(3y)+(3y)^2
2 =(2x+3y)^2
What theorem proves that this congruent
sss
Step-by-step explanation:
side side side
all 3 or congruent
Thomas is purchasing notebooks for
school. He has $25 to spend and each
notebook costs $4.15. How many
notebooks can he buy if he must first
buy a calculator for $8.64?
Answer:
4
Step-by-step explanation:
what perfect squares does the square root of 10 lie between
Answer: 5 and 15
Step-by-step explanation:
6 ) y = -x + 4
slope =
y-intercept =
What it is the answers to the question above
The surface area of Earth is approximately 5.1 x 108 km2. The surface area of Jupiter is approximately 6.2 x 1010 km2. Approximately
how many times larger is Jupiter's surface area than Earth's surface area?
A 8
B 12
C 80
D 120
Answer:
The correct answer is: Option D: 120
Step-by-step explanation:
Given that
[tex]S_E = 5.1*10^8\ km^2\\S_J = 6.2*10^{10}\ km^2[/tex]
In order to find how much larger is the area of Jupiter we will divide the surface area of Jupiter by the Surface area of Earth. First of all we will have to equate the exponents of 10 so that the cutting can be done
Now,
[tex]= \frac{S_J}{S_E}\\= \frac{6.2*10^{10}}{5.1*10^8}[/tex]
10^10 can be written as: 10^8*10^2
[tex]=\frac{6.2*10^2*10^8}{5.1*10^8}\\= \frac{6.2*100}{5.1}\\=\frac{620}{5.1}\\=121.5686[/tex]
Closest to 121 is 120.
Approximately Jupiter's surface area is 120 times larger then Earth's surface area.
Hence,
The correct answer is: Option D: 120
In 3 hours Jon can walk 5 miles. At this
same rate, how long can he walk in 5
hours?
Answer:
8.3 miles
Step-by-step explanation:
In 3 hrs he can walk=5 miles
In an hour he can walk=5/3miles
=1.66 miles
In 5 hours he can walk=1.66*5miles
=8.3 miles
Hope this helps
Write and solve a proportion to answer the question.
34 is 60% of what number?
Answer: 20 2/5
Step-by-step explanation: 60/100=x/34
100x/100=2040/100
x=102/5=20 2/5
If g(x) = 4x-7 then g(1) = ?
Answer:
g(1) = -3
Step-by-step explanation:
g(x) = 4x-7
Let x=1
g(1) = 4*1 -7
= 4 -7
= -3
Answer:
-3
Step-by-step explanation:
1 3 movie tickets cost $36. At this rate, what is the cost per ticket?
Answer:
$12 per ticket
Step-by-step explanation:
if 13 movie tickets cost $36 the cost per ticket is how much will a tiket cost
36/13= $12
Show work too I’ll mark you brainlist hurry lol
Answer:
1
Step-by-step explanation:
Answer:
see below
Step-by-step explanation:
[tex]e(x)=\frac{1}{5}x\\\\e(5)= \frac{1}{5}*5\\\\\boxed{e(5)=1}[/tex]
Hope this helps.
describe julius caesar as a child
Answer:
You dare challenge me...
Step-by-step explanation:
Gaius Julius Caesar was a Roman general and statesman who played a critical role in the events that led to the demise of the Roman Republic and the rise of the Roman Empire. In 60 BC, Caesar, Crassus and Pompey formed the First Triumvirate, a political alliance that dominated Roman politics for several years.