If Mark and Doug work at the mall and their total number of combined hours was 13 more hours than Mark worked, The number of hours they work in total is 47 hours.
How to find the hours worked?Let x represent the time Doug worked
let 3x - 5 represent the number of hours Mark worked
Hence,
x + 3x - 5 = 3x -5 +13
4x-5=3x-5+13
4x-5=3x+8
Add 5 to both side
4x-5+5 =3x+8+5
simplify
4x =3x +13
subtract 3x from both side
4x -3x = 3x + 13 =3x
1x = 13
x =13/1
x =13 (Doug)
Hence,
3x -5 where x = 13
3 (13) -5
= 39 -5
= 34 hours (Mark)
Total hours
(Doug + Mark)
= 13 hours + 34 hours
= 47 hours
Therefore the total hours is 47 hours.
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How many zeros are in the product 4 x 10 7th power
Answer:
7 or 40,000,000
Step-by-step explanation:
The exponent (^7) is how many zeros for the 10. if there is 10^2 its just 100 because it's 10 * 10 or 100 (notice the zeros in the 10 * 10 equation? yup, there's 2) and the 4 is basically 4 * 10, it changes the 10 like 4*1 but with a lot of zeros if there were exponents (10^2) so just put them together and you get 4 * 10^7
10^7 (its just 10 times itself 7 times) = 10,000,000
4 * 10,000,000 = 40,000,000
Hope this helps
~R3V0
y = 4x + 8 when x = 3y
Answer:
-8/11
Step-by-step explanation:
what are you trying to isolate
Help if you can -
8 commercials in 15 minutes
Find Unit Rate
Plzz show work!
Also, dont add any type of links
Thanks!! :D
Answer:
1.875 commercials a minute
Step-by-step explanation:
PLEASE I NEED THIS NOW, AND EXPLICATION
Answer:49.5
Step-by-step explanation:so if 1 inch equal to 3 yards then 7.5 will be 21.5 and 6 inchs will be 18 so if you all together you will get 49.5
Answer:
36
Step-by-step explanation The answer would be 36 because A=a2=62=36 and the math added to 36 hope this helped.
What is the answer to 3/4= 6
Answer:
False
Step-by-step explanation:
PLS HELP WILL CHOOSE BRAINLY NO SENDING LINKS! Which conditions will result in the construction of a unique triangle? Select TWO answer choices.
Answer:
not sure about second, but one is the 30, 60, 90 angle triangle. That one i'm 100 percent sure of (30, 60, 90).
Step-by-step explanation:
Express the tangent of angle U as a ratio of the given side lengths.
Answer:
Option c ==> 5/12 is the answer
I have no idea what this question means but if anyone understands it or has an answer much help is apreciated! :)
Here, we have to factorise :
- 12n - 20Consider the largest number which is the factor of both -12 and -20, that is -4.
→ -4 × 3n = -12n
→ -4 × 5 = -20
Taking (-4) as common,
→ -4( 3n + 5 )
Option B is correct. [tex] \checkmark [/tex]Aquarium is a square prism. What is the height of the aquarium if it has a volume of three cubic units and a width of 3 feet?
Answer:
1
Step-by-step explanation:
x*3=3
x=1
Which is the correct mapping statement for a rotation 180∘ about the origin?
(x,y)↦(y,x)
(x,y)↦(−x,−y)
(x,y)↦(−y,x)
(x,y)↦(y,−x)
Answer:
B
Step-by-step explanation:
it moved twice to the left hand side because it's 180 anticlockwiseAnswer:(x,y)↦(−x,−y)
Step-by-step explanation:
What is the value of g(0)
a. 1
b. 0
c. 8
d. 4
Answer:
c. 8
Step-by-step explanation:
1) [tex]g(x)=8(\frac{1}{2} )^{x}[/tex]
2) [tex]g(0)=8(\frac{1}{2} )^{0}[/tex]
3) [tex]g(0)=8*1[/tex]
4) [tex]g(0)=8[/tex]
4. Calculate the compound interest earned when $8 500 at 8% per year for:
a. 3 years
b. 8 months
Look at the system of equations below.
y = {x + 10
y = {x – 10
Which of these statements is correct?
A. The system has no solution.
B. The solution of the system is (-3,8).
C. The solution of the system is (6,-6).
D. The system has an infinite number of
tiang
Answer:
Step-by-step explanation:
A
You buy a laptop that
originally cost $660.
It was on sale for 20%
off. You paid 8% tax
on the sale price.
What was the total amount that you paid?
Answer:
$528.00
Step-by-step explanation:
I hope this helps :)
To get ready for school, Traci spent 1/20th
of an hour getting dressed and 1/10th of an
hour doing her hair. What is the total
amount of time she spent getting ready?
Give your answer in simplest form.
Answer:
3/5
Step-by-step explanation:
1/10+1/20=3/5
Determine the measure of the missing angle in the figure below.
DRAG & DROP THE ANSWER
90
45
75
Missing angle:
Answer:
Step-by-step explanation:
What is the surface area of a right circular cylindrical oil can, if the radius of its base is 4 inches and its height is 11 inches? for 25 points
Step-by-step explanation:
Given
Radius (r) = 4 inches
height (h) = 11 inches
Total surface area of cylindrical oil can is
= 2πr ( r + h)
= 2 * 22 / 7 * 4 ( 4 + 11)
= 2 * 22/7 * 4 * 15
= 377.14 inches ²
If the radius of a right circular cylindrical oil can base is 4 inches and its height is 11 inches, then the surface area of that right circular cylindrical oil can is 376.99 square inches.
What is the surface area of a right circular cylindrical figure?Let b and h be the radius of the base and height of a right circular cylindrical figure respectively. Then the surface area of this right circular cylindrical figure is 2πb(b + h).
How to solve this problem?Given that the radius of the base of the can is 4 inches.
The height of the can is 11 inches.
Then the surface area of the can = 2π * 4(4 + 11) = 8π(15) = 120π = 376.99 square inches
Therefore, If the radius of a right circular cylindrical oil can base is 4 inches and its height is 11 inches, then the surface area of that right circular cylindrical oil can is 376.99 square inches.
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Work out
m
and
c
for the line:
y
=
11
x
Answer: m=11
Step-by-step explanation:
help please , i need it asap ! ty
Answer:
7.5
Step-by-step explanation:
Answer:
Step-by-step explanation:
If the one side = 3 and the other side (4.5) is supposed to be the same all it is is 4.5/3 which is 1.5. 1.5 times 5 ( the bottom side) is 7.5! X=7.5
o study student engagement, a university surveys 1,390 college freshman and determines that 470 of them participate in a recreational sport. The university would like to estimate the proportion of all college freshman that participate in a recreational sport at a 95% confidence interval. What is the upper bound of the confidence interval built by the university
Answer:
46
Step-by-step explanation:
When can you write ratios as a fraction?
Answer:
In a mathequation when needed
Step-by-step explanation:
A dot plot displays data ______
using a small dot for each data piece.
A : Vertically
B: Graphically
C: Proportionally
Describe several methods you could use to determine the rational zeros of a polynomial function. Which would you choose to use first? Explain.
Answer:
The Rational Zero Theorem helps us to narrow down the list of possible rational zeros for a polynomial function. Once we have done this, we can use synthetic division repeatedly to determine all of the zeros of a polynomial function.
Step-by-step explanation:
Answer:
The Rational Zero Theorem helps us to narrow down the list of possible rational zeros for a polynomial function. Once we have done this, we can use synthetic division repeatedly to determine all of the zeros of a polynomial function.
Step-by-step explanation:
4x^2+19x+19=0 to the nearest tenth
Answer:
the answer is
Step-by-step explanation:
whats the circumference?
Answer:
40.82
Step-by-step explanation:
3.14 times 13
Please help, test due in 2 hours! Will give good review and brainliest. :)
Answer:
triangle and rectangle??
Step-by-step explanation:
I need help please pleaseeeeee
Answer:
19.64 ft
Step-by-step explanation:
7/25 = 5.5/x
7x = 137.5
x = 19.64
a line is parallel to y=3x-2 and intersects the point (3,5)
The equation of the line that is parallel to y = 3x - 2 and intersects the point (3, 5) will be y = 3x - 4.
What is the equation of a parallel line?Let the equation of the line be ax + by + c = 0. Then the equation of the parallel line that is parallel to the line ax + by + c = 0 is given as ax + by + d = 0.
The linear equation is given below.
y = 3x - 2
The equation of the line that is parallel to the line y = 3x - 2 will be given as,
y = 3x + c
The equation passes through (3, 5), then we have
5 = 3(3) + c
5 = 9 + c
c = - 4
Then the equation of the line will be y = 3x - 4.
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Jazzmine took out a loan of $17,500 to buy a new car. She received a 3.5% interest rate compounded annually and paid $3,274.50 in interest. How long did it take Jazzmine to pay off the loan?
Answer:
Time period = 5 year (Approx.)
Step-by-step explanation:
Given:
Amount of loan = $17,500
Rate of interest = 3.5% compounded annually
Amount paid as interest = $3,247.5
Find:
Time period
Computation:
Using compounded interest formula
I = P[(1+r)ⁿ - 1]
3,247.50 = 17,500[(1+3.5%)ⁿ - 1]
3,247.50 = 17,500[(1+0.035)ⁿ - 1]
3,247.50 = 17,500[(1.035)ⁿ - 1]
Time period = 4.948
Time period = 5 year (Approx.)
The scatterplot shows the relationship between the percentage of battery life remaining in 12 smoke detectors and the number of months that the batteries have been in the smoke detectors.
Based on the scatterplot, what is the best prediction of the number of months it would take for the battery in a smoke detector to have 20 percent battery life remaining?
A-9 months
B-7 months
C-11 months
D-6 months
