please help me this is due in 2 hours you need to explain your answer plzzzzzz???????!!!!!!!
Answers
Answer:
1) one muffin costs $1.50
one quart of milk costs $3.00
2) 10 videos, 30 CDs
Step-by-step explanation:
1)
m = cost of one muffin
q = cost of one quart of milk
System of equations:
3m + 1q = 7.5
8m + 2q = 18
I multiplied the first equation by -2 to eliminate the 'q' values
-6m - 2q = -15
+ 8m + 2q = 18
2m = 3
m = 3/2
find 'q':
3(3/2) + q = 7.5
9/2 + q = 15/2
q = 6/2 or 3
2)
c = # of CDs sold
v = # of videos sold
System of equations:
c + v = 40
4c + 6v = 180
I solved first equation for 'c' to get c = 40 - v
4(40-v) + 6v = 180
160 - 4v + 6v = 180
2v = 20
v = 10
10 + c = 40
c = 30
Related Questions
Ballio is 12 4/5 years old. Bill is 1 1/6 years older than Ballio and Jane is 1 1/3 years older than Bill. How old is Jane?
Answers
Answer:
15 3/10 years
Step-by-step explanation:
Ballio age = 12 4/5
Bill's age = Ballio's age + 1 1/6
Bills age = 12 4/5 + 1 1/6 = 64/5 + 7/6 = (384 + 35) / 30 = 419 / 30 = 13 29/30
Jane's age :
13 29/30 + 1 1/3
419 / 30 + 4 /3 = (419 + 40) / 30 = 459 / 30 = 15 9/30
15 9/30 = 15 3/10 years
Order this set of numbers from greatest to least. Then explain the order, referring to the number line in your explanation.
-1.79, 2 1/4, 2.54, -4
Answers
Answer:
2.54 , 2 , 1/4 , -1.79 , -4
Step-by-step explanation:
I'm so confused, how do you do this ;-;
Answers
Answer:
1. 12 m
2. 15.2 ft
3. 22 km
4. 10 ft
Step-by-step explanation:
Diameter is the radius multiplied by itself to find the entire length of a circle
What is the range of the progress of these projects?
Answers
Answer:
Quick question, did you find the answer?
Which figure best represents a kite?
A figure with 1 pair of parallel sides.
A figure with 2 pairs of parallel sides with the different lengths.
A square.
A kite.
Answers
Answer:
4th one: A kite is the answer.
Help pls! ill mark brainliest if correct
Answers
Formula: 2xpixrxh + 2xpixr^2
Follow the directions below.
Jacob dribbles a basketball so that it bounces at the same angle off the
floor as the angle at which it hits the floor. Drag the appropriate number
and varibles to model the situation with an equation. Then find the angle
at which the ball hits the floor.
2
4
13
26 58
64
90
116
180 360
х
At what angle does the ball hit the floor?
Answers
A regular work week is 40 hours. Overtime pay is time and one-half. Isabel drives a truck for $8.75 an hour. If she worked 48 hours, what would her gross earnings be for one week?
Answers
And since it is only half pay for overtime then she would only make $35 in eight hours
So altogether she would make $385 this week
State all integer values of x in the interval {-4,1} that satisfy the following inequality: 2x-9> -15
Answers
Answer:
maybe 3
Step-by-step explanation:
what is x + 3 < 9 ; x = 7 mean
Answers
Because we know what x is, we plug in 7 to the expression.
7+3<9
Since 7+3 is 10, then the new expression is 10<9.
I have no idea if this is a true/false question, because this statement is false.
---
sorry if this doesn't help
Please help me I will really appreciate it is a Question and there are 4 answers which one of them is right ✅
Answers
Answer:
A. 4:16
Step-by-step explanation:
4*1: 4*4
4:16
Answer:
A
Step-by-step explanation
a trick you can use is to divide
What is the length of the dotted line in the diagram below? Round to the nearest tenth.
Answers
Answer:
third side of. TRAINGLE is hypotenuse
=√(9²+7²)=11.04
therefore given figure is rectangle
dotted line is hypotenuse
=√(9²+11.04²)=14.24 unit
1015
Why is
equal to 1011?
104
Answers
What is the amount paid for the loan for $2000 at 12% for 3 years
Answers
I'm Sorry for all the work. I swear this is the last one! Please just help me in this last question.....
Answers
Answer:
Step-by-step explanation:
y=mx+b where m=slope and b=y intercept
m=(y2-y1)/(x2-x1), we have points (0,0) and (4,12)
m=(12-0)/(4-0)=12/4=3
y=3x+b, using point (4,12) we can solve for b
12=3(4)+b
12=12+b
b=0 so the line is
y=3x
What is the area of the figure below?
Answers
Answer:
rectangle: 30 in^2
triangle: 12 in^2
composite: 42 in^2
Step-by-step explanation:
area of a rectangle: length times width
area of a triangle: [tex]\frac{AB}{2}[/tex]
composite area: break the area up by shapes you can find the area of, then add it back together
I GIVES BRAINLIEST TO PEOPLES WHO ANSWERS
Answers
Answer:
A) $28.14 B) $8.14
Step-by-step explanation:
1 * 12.95 = $12.95
2 * 3.20 = $6.40
1 * 8.79 = $8.79
we add up all these numbers, 28.14
well he has only 20 bucks, so he still needs 28.14-20= $8.14
Please don't forget to give brainliest ;)
Answer:
A) The total of supplies Jesse needs is $28.14
B) He would still need $8.14 to complete the birdhouse
Step-by-step explanation:
Jess has $20
1 piece of strong board = $12.95
2 boards = $3.20 each (2 x 3.20 = $6.40 total)
10 foot post = $8.79
$12.95 + $6.40 + $8.79 = $28.14
$20 - $28.14 = -$8.14
The total price $28.14
He would need $8.14 more
(wanna give me the crown?)
At 4 PM, the level of the water in the lake was 10 feet. At 8 PM, the level of the water was 2 feet. Determine the constant rate of change of the water.
Answers
Answer:
[tex]-4\ \text{feet/hour}[/tex]
Step-by-step explanation:
Level of water at 4 PM is 10 feet.
Level of water at 8 PM is 2 feet.
Time duration in which water level is measured is [tex]8-4=4\ \text{hours}[/tex]
The change of the level of water in the given time duration is [tex]2-10=-8\ \text{feet}[/tex]
The rate of change would be
[tex]R=\dfrac{-8}{4}=-4\ \text{feet/hour}[/tex]
The constant rate of change of the water is [tex]-4\ \text{feet/hour}[/tex].
The minus sign indicates that the water level is reducing.
Simplify the equation. n = 12 = 11
Answers
Answer:
look at explanation plz
Step-by-step explanation:
r u sure it isn't n-12=11?
if it's n=12=11 no solution
if it's n-12=11 n=23
Answer:
23
Step-by-step explanation:
Sophie bought snacks for her team's practice. She bought a bag of chips for $2.49 and
a 12-pack of juice bottles. The total cost before tax was $27.57.
Write and solve an
equation which can be used to determine x, how much each bottle of juice costs?
Equation:
Answer: x =
Answers
Answer:
x=5
Step-by-step explanation:
which of the tables below represents the same linear relationships as y=x+2?
Answers
....... .. ...........
If ∠H=85° and ∠G=60°, then HJ_____JG
<
>
=
Answers
Answer:
i think its > this one
Step-by-step explanation:
DUE SOON
Sam rolls a fair number cube with 6 faces labeled 1 through 6. She rolls the number cube 600 times. Which result is most likely?
Sam will roll a 3 or 4 about 200 times
Sam will roll a 3 or 4 exactly 200 times
Sam will roll an even number about 400 times
Sam will roll an even number exactly 400 times
Answers
Answer:
Sam will roll a 3 or 4 about 200 times
Step-by-step explanation:
hey so im having a hard time understanding how to do the distributive property can someone explain to me how do to it and a example
Answers
Answer:
Example: 3(2-2)
Step-by-step explanation: if there is a number outside the parenthesis, you just multiply it with every number inside of it.
So you would start off with 3(2-2) and then multiply 3 and 2 and 3 - 2
you would then get 6-6
Answer:
Step-by-step explanation:
sure!
so lets take this equation as an example
4(x+3)
now of course you can't actually add x+3 because we dont yet know the value of x, but distibutive property can let us do that.
what you're gonna wanna do it distribute the 4 into the equation so it then turns into
4x+12
you multiply all terms in the parenthesis by the number on the outside
hopefully this helps!
Find the measure of X to the nearest tenth. Please help
Answers
Answer:
don't download thattttttttttttttt
The volume of a cylinder is 8.478 cubic inches, and the radius is 15 inches. Which measurement is closest to the height of this cylinder in cubic inches?
A. 90 in
B. 12 in
C. 48
D. 8
Answers
Answer:
No correct answer
Step-by-step explanation:
volume of a cylinder= pi*r2*height
making height the subject of formula
height = volume/pi*r2
height= 8.478/pi*15*15 = 0.012in
A pot of boiling water is at a temperature of 212 degrees. The temperature of the water decreases by 7% each minute. To the nearest degree, how
warm will the water be after 12 minutes? Write a function and determine the temperature after 12 minutes.
Answers
This graph represents a linear function.
Enter an equation in the form y = mx + b that represents the function described by the graph.
Answers
Answer:
y=2x-2
Step-by-step explanation:
Answer:
Step-by-step explanation:
To find the line y=mx+b we need two points. I choose (0,-2) and (1,0)
Since y=mx+b where m=slope and b=y intercept (value of y when x=0)
We have the point (0,-2) so we know b=-2
Now we find the slope which is defined as
m=(y2-y1)/(x2-x1), in this case
m=(0-(-2))/(1-0)
m=2, so the line is
y=2x-2
There are 188 $100 bills in a bag how many would each person get
Answers
Answer:
for 1 person: 188
for 2 people: 94
etc.
Step-by-step explanation:
divide 188 by the number of people
This is very very simple
Answers
Answer:
2
Step-by-step explanation:
2+2+4=8/4=2
Answer:
2!
Step-by-step explanation: