Answer:
about $64.8
Step-by-step explanation:
First of all, we know that there is 60 min per hour.
So we find out how many hours 320 minutes is equivelant to.
We can solve this by doing 320/60 = 5\frac{1}{3}
To find how much Joy makes, simply do $12.25 x $5\frac{1}{3} = 28
Answer: 28
Hope You Found this helpful! :)
does anyone know how to do the rest?
Answer/Step-by-step explanation:
Given:
[tex] \frac{4}{x} - \frac{3}{y} = 1 [/tex] ---› Equation 1
[tex] \frac{8}{x} + \frac{9}{y} = 7 [/tex] ---› Equation 2
Solution:
✔️Equation 1 × 3:
[tex] \frac{4}{x}*3 + \frac{3}{y}*3 = 1*3 [/tex]
[tex] \frac{12}{x} + \frac{9}{y} = 3 [/tex] ---› Equation 3.
✔️Equation 2 + Equation 3:
[tex] \frac{8}{x} + \frac{9}{y} = 7 [/tex] ---› Equation 2
[tex] \frac{12}{x} + \frac{9}{y} = 3 [/tex] ---› Equation 3.
Thus:
[tex] \frac{-4}{x} = 10 [/tex]
Cross multiply
[tex] 10x = -4 [/tex]
Divide both sides by 10
[tex] x = -\frac{4}{10} [/tex]
[tex] x = -\frac{2}{5} [/tex]
✔️Find y:
Substitute x = -2/5 into equation 1
[tex] \frac{4}{x} - \frac{3}{y} = 1 [/tex] ---› Equation 1
[tex] \frac{4}{\frac{-2}{5}} - \frac{3}{y} = 1 [/tex]
[tex] \frac{4}*{\frac{5}{-2}} - \frac{3}{y} = 1 [/tex]
[tex] -10 - \frac{3}{y} = 1 [/tex]
Add 10 to both sides
[tex] - \frac{3}{y} = 1 + 10 [/tex]
[tex] \frac{-3}{y} = 11 [/tex]
Cross multiply
[tex] 11y = -3 [/tex]
Divide both sides by 11
[tex] y = -\frac{3}{11} [/tex]
The following graph indicates a _______________.
a.
2 × 4 factorial design with interaction
b.
4 × 2 factorial design with no interaction
c.
4 × 2 factorial design with interaction
d.
2 × 4 factorial design with no interaction
e.
randomized block design
help please
solve for x
Answer:
x = 17
Step-by-step explanation:
4x-10 and 58 are alternate interior angles since the lines are parallel
Alternate interior angles are equal.
4x-10 = 58
Add 10 to each side
4x-10 +10 = 58+10
4x = 68
Divide each side by 4
4x/4 = 68/4
x = 17
Answer:
17
i did the math at home.
Totally forgot how to do this, please help.
Answer:
-2/21 is the answer hope it helps
Courtney used 25 out of her 30 tickets to select a prize at the arcade.
What is this fraction written as a decimal?
Answer:
.83333
Step-by-step explanation:
..............
A can of soup contains 1 1/4 cups. A serving is 1/2 of a cup. How many servings are in the
can?
1 3/4
3
21/2
2
Answer:
c 2 1/2
Step-by-step explanation:
Answer:
I think it is b. 3. Im not sure though.
Step-by-step explanation:
What is the answer???
The exterior angles of an octagon Are X, 2X, 3X, 4X, 5X, 6x, 7X and 8X. What is the size of the smallest interior angle of this octagon?
A. 10
B.45
C.80
D.100
Answer:
Hence, the smallest interior angle of this octagon is 100
Step-by-step explanation:
Final answer 100
The average credit card rate for new users is nearly 15%. Suppose you buy a $120 pair of shoes
using a brand-new credit card. If you are not able to make any payments on your credit card,
how much money will you owe 4 years after you purchased the shoes?
Answer:
$480
Step-by-step explanation:
Describe the data for a correlational research study and explain how these data are different from the data obtained in experimental and nonexperimental studies, which also evaluate relationships between two variables. A correlational study satisfies which conditions?
Answer:
Step-by-step explanation:
10+(-6)
What is it please tell me
Answer:
4
Step-by-step explanation:
Answer:
The answer is 4
Step-by-step explanation:
I learnt this in 7th grade.
There are 1,043 souvenir paperweights that need to be packed in boxes. Each box will hold 11 paperweights. How many boxes will be needed?
Answer:
95 will be needed because there are 9 extra paperweights
Step-by-step explanation:
can i get brainliest plz
Answer:
Step-by-step explanation:
99 i think
The following are the ages (years) of 5 people in a room: 24, 17, 18, 16, 20 A person enters the room. The mean age of the 6 people is now 25. What is the age of the person who entered the room?
Answer:
The man or woman that entered the room was 55 years of age.
Step-by-step explanation:
If we add up all the ages together, it is 95. When the other person walks in, the mean changes to 25. If you do the math, or if you count, the man or woman that enters is 55, which when added together, gives 150. divided by 6 equals 25.
Determine the number and types of solutions for
6m^2-3m-4=0
Answer:
2 real solutions
Step-by-step explanation:
Remember this messy thing?
[tex]x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]
The quadratic formula, as it's called, gives us the roots to any quadratic equation in standard form (ax² + bx + c = 0). The information on the type of roots is contained entirely in that bit under the square root symbol (b² - 4ac), called the discriminant. If it's non-negative, we'll have real roots, if it's negative, we'll have complex roots.
For our equation, we have a discrimant of (-3)² - 4(6)(-4) = 9 + 96 = 105, which is non-negative, so we'll have real solutions, and since quadratics are degree 2, we'll have exactly 2 real solutions.
Sneha drinks a 27-ounce energy drink containing 137 calories per 9 ounces. How many calories did she drink?
Answer: 411
Step-by-step explanation:
An automobile manufacturer claims that its van has a 59.1 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the MPG for this van since it is believed that the van has an incorrect manufacturer's MPG rating. After testing 160 vans, they found a mean MPG of 59.5. Assume the variance is known to be 2.89. A level of significance of 0.1 will be used. Find the value of the test statistic. Round your answer to 2 decimal places.
Answer:
Test statistic Z = 1.8099
Step-by-step explanation:
Step(i):-
Given that mean of the Population (μ) = 59.1 miles/gallon
Mean of the sample (x⁻ ) = 59.5
The standard deviation of the Population = 2.89
mean of the sample (n) = 160
Step(ii):-
Test statistic
[tex]Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }[/tex]
[tex]Z = \frac{59.5-59.1 }{\frac{2.89}{\sqrt{160} } }[/tex]
Z = 1.8099
Test statistic = 1.8099
The chart shows Jolene's tutoring schedule. Today she worked with both math and
chorus students. When is the next time Jolene will tutor both subjects on the same
day?
Subject. Frequency
Math Every2Days Chorus
Every 5 Days
Pls help urgent
Answer:
10
Step-by-step explanation:
5x2=10
Answer:
10
Step-by-step explanation:
5 times 2 equals 10
A restaurant has a sign by the front door that says, "Maximum occupancy: 75 people."
What percentage of its capacity is 84 people?
Answer:
112%
Step-by-step explanation:
The percentage of its capacity is calculated as
Number of people / Maximum Occupancy × 100%
Number of people = 84 people
Maximum Occupancy = 75 people
Hence:
84 people /75 people × 100
= 1.12 × 100
= 112%
Therefore, the percentage of its capacity that is 84 people is 112 %
Nothing else to it, just find the value of the expressions.
Answer:
k-k-k-kabbajje!
Step-by-step explanation:
PLAYGROUND Lukas is walking around the edge of the playground shown. How far will Lukas have walked when he finishes one loop
around the playground? Round to the nearest unit, if necessary.
Answer:
40 units
Step-by-step explanation:
This question is essentially asking the perimeter of the traingle
We can easily find the sides AC and BA and while you can use the distance formula to find the last side this is a right triange so we will take an easier approach
So because AC has the same y we can very easily figure out how far apart they are by subtracting (or counting) the x values
For me I got AC= 15
AB is kind of the same deal but instead subtract the y value
I got BA= 8
We can now use the a^2+b^2=c^2 formula to get the length of the last side
8^2+15^2=c^2
This means that 289=c^2
take the square root of both sides to get
c=17
The final step is to get the perimeter which is 17+8+15 or 40
What is this problem solve ? 2(n-1) +4n=2(3n-1)
Answer:
Any value will work
Step-by-step explanation:
2n - 2 + 4n = 6n - 2 -> 6n - 2 = 6n - 2 -> 0 = 0. Any value will work
Answer:
infinitely many solutions
Step-by-step explanation:
i ready
There is 1/4 chance of picking a green marble from a bag. IF there are 20 total marbles in the bag, how many marbles must be green?
Answer:
5 green marbles.
Step-by-step explanation:
20* 1/4 = 5
rectangle has an area of x2 + 3x — 4 and a width of x— 1. What is the length of the rectangle?
Answer:
x+4
Step-by-step explanation:
If you plug in the answer choices (x+4, x-4, x+2, x-2) into (x-1) (insert solution), x+4 gives you x^2+3x-4. :)
Express 2x squared - 3x - 5 as the product of two binomial factors
Answer:
(2x - 5) (x + 1)
Step-by-step explanation:
2x2 - 3x - 5 = 0
(2x - 5) (x + 1) = 0
Will mark the brainliest
Rewrite in simplest terms: 3h - 2(-0.1h - 0.8)
please help
Answer:
3.2h+1.6
Step-by-step explanation:
3h-2(-0.1h-0.8)
3h+0.2h+1.6
3.2h+1.6
letters cost $1 each to send in the mail and packages cost $5 each the equation x + 5y = 25 describes how many letters and packages you can send for $25 find the y intercept and explain what it means
Answer:
y is the packages in the equation
drag the tiles to the correct boxes to complete the pairs.
the graph shows a quadratic function f(x).
Answer:
Nothing
Step-by-step explanation:
There is no real question or graph
Plz help I dont know
How to tell if y=1/7x is proportional
Answer:
It is proportional
Step-by-step explanation:
y=Kx
because it crosses the orgin
CRoC=Cop
What is the equation of the line that passes through the point (4,−2) and has a slope of −2?
Answer:y=-2x+6
Step-by-step explanation:
You want to find the equation for a line that passes through the point (4,-2) and has a slope of -2.
First of all, remember what the equation of a line is:
y = mx+b
Where:
m is the slope, and
b is the y-intercept
To start, you know what m is; it's just the slope, which you said was -2. So you can right away fill in the equation for a line somewhat to read:
y=-2x+b.
Now, what about b, the y-intercept?
To find b, think about what your (x,y) point means:
(4,-2). When x of the line is 4, y of the line must be -2.
Because you said the line passes through this point, right?
Now, look at our line's equation so far: . b is what we want, the -2 is already set and x and y are just two "free variables" sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the the point (4,-2).
So, why not plug in for x the number 4 and for y the number -2? This will allow us to solve for b for the particular line that passes through the point you gave!.
(4,-2). y=mx+b or -2=-2 × 4+b, or solving for b: b=-2-(-2)(4). b=6.
