Answers
Answer:
The last one
Step-by-step explanation:
What we know:
We have a total of 16 coins
The 16 coins consist of dimes and quarters
The value of the coins is 3.10
The value of a dime is .10
The value of a quarter is .25
Using this information we can create a system of linear equations
First off we know that we have a total of 16 coins which consist of dimes and quarters
The number of Quarters can be represented by q and then number of dimes can be represented by d.
If we have a total of 16 coins then q + d must equal 16
So equation 1 is q + d = 16
Now we need to create a second equation
We know that the total value of the coins is 3.10 and we know that the coins consist of dimes and quarters
As you may know a quarter has a value of .25 cents and a dime has a value of 10 cents
If the total value of the coins is 3.10 the the number of dimes (d) times .10 + the number of Quarters times .25 must equal 3.10
This can also be written as
.25q + .10d = 3.10
So the two equations are
q + d = 16 and .25q + .10d = 3.10
These equations are shown in the last answer choice
Note: b is very similar to d
However the the value of the coins are incorrect in B
In B the value of the dime is represented by 10 which is not correct because the value of a dime is .10 not 10
Related Questions
What type of line is PQ?
A. median
B. altitude
C. angle bisector
D. side bisector
I need help with this question to pass a test
Answers
Answer:
Option C, angle bisector
Answered by GAUTHMATH
Please help with this qns
Answers
9514 1404 393
Answer:
$70
Step-by-step explanation:
Four relationships are given among four unknowns. Define the following variables: p, c -- the cost of a pie and a cake, respectively. q, d -- the number of pies and cakes, respectively.
q/d = 5/2 . . . . . the ratio of pies to cakes sold
pq +cd = 3780 . . . . revenue from the sales
p = c -35 . . . . . a pie is $35 less than a cake
cd = pq -420 . . . . revenue from cakes is $420 less than for pies
__
The equations are non-linear, so we're making up this process as we go along. We observe that 'pq' and 'cd' are involved in relations that give us their sum and difference, so these products are easily found. Their ratio can let us take advantage of our knowledge of q/d.
Substituting for cd in the second equation, we get ...
pq +(pq -420) = 3780
2pq = 4200
pq = 2100
cd = 2100 -420 = 1680
Now, we can write ...
pq/cd = 2100/1680 = 5/4
(p/c)(q/d) = 5/4 = (p/c)(5/2) . . . . substitute for q/d
p/c = 1/2 = (c -35)/c . . . . . . . . . . substitute for p
c = 2(c -35) . . . . multiply by 2c
c = 70 . . . . . . . . add 70-c
The cost of a cake is $70.
_____
Additional comment
24 cakes were sold at $70 each. 60 pies were sold at $35 each.
Please help me!
14
33
46
60
200
Answers
Answer:
46
Step-by-step explanation:
200/2 = 100, and the x coordinate that line up with the y-coordinate of 100 is 46.
A certain freezing process requires that room temperature be lowered from 35oC at the rate of 6oC every hour. What will be the room temperature 8 hours after the process begins?
Answers
Answer:
-13 degrees celcius.
Step-by-step explanation:
6 degrees are lowered every hour. 6*8 = 48 degrees, 48 degrees are lowered.
35-48 is -13. The room temperature will be -13 eight hours after the process begins.
morgan got 17/20 of the questions on a science test correct. what percent of the questions did she get correct?
Answers
Answer:
85%
Step-by-step explanation:
100% = 20
1% = 100%/100 = 20/100 = 0.2
now, how often does 1% fit into the actual result of 17 ? and that tells us how many %.
17/0.2 = 17/ 1/5 = 17/1 / 1/5 = 5×17 / 1 = 5×17 = 85%
Answer:
17/20×100=
85%
=85%
hope this helps
answer this now please :)
Answers
9514 1404 393
Answer:
E. 384 cu ft
Step-by-step explanation:
The sum of length and width is half the perimeter, so the width is ...
(40/2) -12 = 8 . . . feet
The depth is half that, so is 8/2 = 4 feet.
The volume is ...
V = LWH = (12 ft)(8 ft)(4 ft) = 384 ft³
Which description does NOT guarantee that a quadrilateral is a square?
A. A quadrilateral has all sides congruent and all angles congruent.
B. A quadrilateral is a parallelogram with perpendicular diagonals.
C. A quadrilateral is both a rectangle and a rhombus.
D. A quadrilateral has all right angles and has all sides congruent.
Answers
Answer:
C A quadrilateral is both a rectangle and a rhombus
Yesterday, Kofi earned 50 cedis mowing
Lawns. Today, Kofi earned 60% of what he
earned yesterday moving lawns - How much
Money did kojo earn moving laws today?
Answers
Answer:
75cedis
[tex]50 = 40\% \\ 60\%[/tex]
The amount of money Kofi earned today from mowing lawns is 30 cedis.
Percentage can be described as a fraction of a number multiplied by 100. Percentage is represented with this sign - %.
In order to determine the amount Kofi earned today, this formula would be used:
Percentage Kofi earned today x amount Kofi earned yesterday
60% x 50 cedis
0.6 x 50 cedis
= 30 cedis
To learn more about percentages, please check: https://brainly.com/question/92258?referrer=searchResults
what is the circumference of a circle with 60 in. as the radius
Answers
Answer:
60π
Step-by-step explanation:
circumference of a circle = 2πr, where r = radius
given r = 60 in
2πr = 2×π×60
= 60π
= 188.5 (rounded to the nearest tenth)
Consider this polynomial, where a is an unknown real number.
correctly/incorrectly
and why
Answers
9514 1404 393
Answer:
incorrectly; used 1 in the division instead of -1incorrectly; evaluated higher powers of -1 incorrectlyStep-by-step explanation:
The result each should have obtained is ...
a +10 = 17
a = 7
Braulio's mistake was in using 1 as his divisor instead of -1. His bottom row should have been 1, 4, a-4, 1-a, a +10.
Zahra's mistake was improperly evaluating higher powers of -1. Her evaluation should have been 1 -5 +a +3 +11 = a +10.
Probability of picking a blue marble and a yellow marble when 2 marbles are picked (without replacement) from a bag containing 4 blue and 4 yellow marbles
Answers
Answer:
9/49
Step-by-step explanation:
that is the procedure above
the figure below is made up of a square, a quadrant and a semicircle. the length of the square is 12cm. find the area of the shaded parts.
Answers
Answer:
P=2pi×r
P=2×12pi=24pi
24pi÷4=6pi
6pi÷2=3pi
p=2×6×pi
p=12pi
12pi÷2=6pi
permiter=3pi+6pi+12=40.27
that is for part a
Last question guys! Help help help
Answers
9514 1404 393
Answer:
slope 125, annual dues paymentStep-by-step explanation:
The two given points can be used to find the slope:
m = (y2 -y1)/(x2 -x1)
m = (650 -400)/(4 -2) = 250/2 = 125
The vertical axis is cost, and the horizontal axis is years, so the slope is the ratio of these: cost per year.
The slope of $125 per year is the yearly membership dues cost.
Help me please with this question
Answers
9514 1404 393
Answer:
21
Step-by-step explanation:
Let c represent the number of child tickets sold. Then 2c is the number of adult tickets sold. The total revenue is ...
5.80c +9.50(2c) = 520.80
24.80c = 520.80 . . . . . . . . . simplify
c = 21 . . . . . . . . . . . . . . divide by 24.80
21 child tickets were sold that day.
Question 3
A bottle of apple juice has 25 ounces. Find the number of quarts of apple juice in a case of 24 bottles. Give the answer as a decimal.
Answers
Answer:
The number of quarts of apple juice in a case of 24 bottles is 18.75.
Step-by-step explanation:
This question is solved by proportions, using rules of three.
Amount of ounces:
1 bottle - 25 ounces
24 bottles - x ounces
Applying cross multiplication:
[tex]x = 25*24 = 600[/tex]
600 ounces to quarts:
Each ounce has 0.03125 quarts.
1 ounce - 0.03125 quarts
600 ounces - x quarts:
[tex]x = 600*0.03125 = 18.75[/tex]
The number of quarts of apple juice in a case of 24 bottles is 18.75.
Ellicott City Manufacturers, Inc., has sales of $6,344,210, and a gross profit margin of 67.3 percent. What is the firm's cost of goods sold? Round your final answer to the nearest dollar.
Answers
Answer:
$3792116
Step-by-step explanation:
that's the answer above
What is the sum of the coefficients in the expression of 4x^4 - x^3 - 2x^2 + 3 - 4
Answers
9514 1404 393
Answer:
0
Step-by-step explanation:
The coefficients are the numerical values that are not exponents. Their sum is ...
4 -1 -2 +3 -4 = 0
Write the equation of a line in slope intercept form that passes through the two points. (-1,3) and (2,9)
Answers
Answer:
[tex]y = 2x +5[/tex]
Step-by-step explanation:
Finding the Slope:
m = rise/run
[tex]m=\frac{9-3}{2-(-1)}=\frac{6}{3}=\boxed{2}[/tex]
The slope is 2.
Finding the y-intercept:
[tex]y = 2x + b\\\\9 = 2(2) + b\\\\9 = 4 + b\\\\9 - 4 = 4 - 4 + b\\\\\boxed{ 5 = b}[/tex]
The y-intercept is (0,5).
The equation should be: [tex]y = 2x +5[/tex].
Hope this helps.
Answer:
y = 2x+5
Step-by-step explanation:
To find the equation in slope intercept form, we first have to find the slope of the two points.
The formula for finding the slope is:
[tex]\frac{y2-y1}{x2-x1}[/tex]
We are given the points:
(-1, 3) and (2, 9)
x1, y1 and x2, y2.
[tex]\frac{9-3}{2-(-1)}[/tex]
[tex]\frac{6}{3}[/tex] or 2 (the slope).
The slope intercept form is written as:
y= mx + b
y=2x+b
To find b, we can plug in either of the points given. Personally, I like to work with positive numbers. I'll be using the point (2, 9), however, either point will get you to the same answer.
y=2x+b
9=2(2)+b
9=4+b
Now subtract 4 from both sides.
5=b
Which then leaves us with the equation:
y = 2x+5
Slide 1.
1) The polygons below ore similor. Find the value of y.
8.
10
Answers
Answer:
y =6
Step-by-step explanation:
We can write a ratio to solve
3 y
----- = ----------
4 8
Using cross products
3*8 = 4y
24 = 4y
Divide by 4
24/4 = 4y/4
6 = y
solve above question
Answers
2 Substitute
y
=
2
−
3
x
y=2−3x into
x
+
y
=
7
x+y=7.
−
2
x
+
2
=
7
−2x+2=7
3 Solve for
x
x in
−
2
x
+
2
=
7
−2x+2=7.
x
=
−
5
2
x=−
2
5
4 Substitute
x
=
−
5
2
x=−
2
5
into
y
=
2
−
3
x
y=2−3x.
y
=
19
2
y=
2
19
5 Therefore,
x
=
−
5
2
y
=
19
2
x=−
2
5
y=
2
19
On his recent free-throw attempts, Lamar made 4 shots and missed 6 shots. Considering this
data, how many of his next 20 free-throw attempts would you expect Lamar to miss?
Answers
Answer:
12 free throw attempts
Step-by-step explanation:
First, find what percent of free throw attempts he misses:
6/10
= 0.6
So, he misses 60% of the time. Multiply 20 by 0.6 to find how many you would expect Lamar to miss out of 20 attempts:
20(0.6)
= 12
So, you would expect Lamar to miss 12 free throw attempts
lvnununuunkmviodjoifmvujibg ibzf
r
Answers
Answer:
speaking giberish
Step-by-step explanation:
cos it is just a word that is rare
Find the center and radius of the circle. Write the standard form of the equation.
(1,6) (10,6)
Answers
Answer:
Centre, ((1+10)/2,(6+6)/2)
or, (11/2,12/6)
or, (5.5,6)
Radius,
[√{(10-1)²+(6-6)²}]/2
= (√81)/2
= 9/2 = 4.5
(x-11/2)²+(y-6)²=20.25
Three different classes contain 20, 18, and 25 students, respectively, and no student is a member of more than one class. If a team is to be composed of one student from each of these three classes, in how many different ways can the members of the team be chosen?
Answers
Answer:
9000
Step-by-step explanation:
20 x 18 x 25
20 options for one member
18 options for another member
25 members for the last member
Rotate the given triangle 90°
counter-clockwise about the
origin [ 0 -3 5]
[0 1 2 ]
Answers
9514 1404 393
Answer:
[tex]\left[\begin{array}{ccc}0&-1&-2\\0&-3&5\end{array}\right][/tex]
Step-by-step explanation:
The rotation matrix for 90° CCW is ...
[tex]\left[\begin{array}{cc}0&-1\\1&0\end{array}\right][/tex]
Then the rotated coordinates are ...
[tex]\left[\begin{array}{ccc}0&-1\\1&0\end{array}\right]\cdot\left[\begin{array}{ccc}0&-3&5\\0&1&2\end{array}\right]=\left[\begin{array}{ccc}0&-1&-2\\0&-3&5\end{array}\right][/tex]
_____
The transformation of each ordered pair is ...
(x, y) ⇒ (-y, x)
Answer:
Step-by-step explanation:
What type of line is PQ?
A. side bisector
B. angle bisector
C. median
D. altitude
Answers
Answer:
B: I think
Step-by-step explanation:
correct me if im wrong
The line PQ is an angle bisector because it divides the angle P into two equal half option (B) angle bisector is correct.
What is an angle?When two lines or rays converge at the same point, the measurement between them is called a "Angle."
We have a triangle shown in the picture.
As we know,
in terms of geometry, the triangle is a three-sided polygon with three edges and three vertices. The triangle's interior angles add up to 180°.
From the figure the segment PQ divides the angle into two equal half.
From the definition of the angle bisector, the angle bisector can be defined as a line segment that divides the angle into two half.
Angle P = 40 + 40 = 80 degrees
Thus, the line PQ is an angle bisector because it divides the angle P into two equal half option (B) angle bisector is correct.
Learn more about the angle here:
brainly.com/question/7116550
#SPJ5
Dog food is sold in a 12 ½ pound bag. My dog, Max, eats a ¾ pound serving every day. How many servings of dog food are in the bag?
Answers
the pound bag has 25/2 of dog food, or 50/4
if the dog eats 3/4, and the pound has 50/4
[tex]\frac{50}{4} . \frac{4}{3} = \frac{50}{3}[/tex]
if you divide 50 by 3, you'll find 16,66666...
since you need full days, the answer is 16 days
hope it helps :)
find the answer for 10 points
Answers
Answer:
52.8
Step-by-step explanation:
(3×2.6×2/2)+(3×5×3)
= 7.8+45
= 52.8
Answered by GAUTHMATH
The scatterplot shows the selling prices of homes and the square feet of living space.
A graph titled home value has square feet (thousands) on the x-axis, and price (hundred thousand dollars) on the y-axis. Points are at (1.2, 1), (1.5, 1.1), (2, 1.5), (2.5, 2). An orange point is at (3.8, 3.9).
Complete the statements based on the information provided.
The scatterplot including only the blue data points shows
✔ a strong positive
correlation. Including the orange data point at (3.8, 3.9) in the correlation would
✔ strengthen
and
✔ increase
the value of
Answers
Answer:
✔ a strong positive
✔ strengthen
✔ increase
ED2021
Answer:
- a strong positive
- strengthen
- increase
PQRS is a parallelogram of area 18 cm. if PQ = 5 cm & QR = 4 cm. calculate the lengths of corresponding heights ?
Answers
Answer:
2cm
Step-by-step explanation:
area of parallelogram=b*h=18cm
5*4=20
length of corresponding heights=20-18
=2cm
the length of corresponding height of the parallelogram is : 2cm
Meaning of a parallelogramA parallelogram can be defined as a simple quadrilateral that is it possesses four sides and two pairs of parallel sides.
A opposite sides of a parallelogram are equal and the opposite angles of a parallelogram are equal.
In conclusion, the length of corresponding height of the parallelogram is : 2cm
Learn more about parallelogram : https://brainly.com/question/970600
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