Answer:
Each sandwich costs 4$.
Step-by-step explanation:
To find the answer we will divide 72$ by 18 and we get 4$.
The number of sandwiches and the total price of sandwiches are directly proportional.
Cost of 18 sandwiches = $72
Cost of 1 sandwich = $72/18
= $4
Hence the cost of 1 sandwich is $4.
:) A linear equation written in the form Ax + By = C is in
Answer:
Standard Form
Step-by-step explanation:
Juan has blood type A, Lilly has blood type AB, and Aaron has blood type O. Is this relation a function? Explain.
This relation is a function. Each name in the domain corresponds to exactly two elements in the range of blood types.
This relation is not a function. Each name in The Domain corresponds to exactly two elements in the range of blood types.
This relation is a function. Each name in The Domain corresponds to exactly one element in the range of blood types.
This relation is not a function. Each name in The Domain corresponds to exactly one element in the range of blood types.
Answer:
This relation is a function
3rd answer
There are 4 such boxes containing toffee and mints Mary take 8 toffees and 26 mints from the boxes what is the ratio of the number of toffees to the number of mints
Answer:
4:13
Step-by-step explanation:
Ratio expresses the relationship between two or more numbers. It shows the frequency of the number of times that one value is contained within other value(s).
8 : 26
divide each number by 2
4 : 13
Which values for A and B will create infinitely many solutions for this system of equations? A x minus y = 8. 2 x + y = B.
Answer:
A = -2
B = -8
Step-by-step explanation:
A system of equations has infinitely many solutions when both equations are exactly the same equation, then both graphs intersect in infinitely many points, meaning that the system has infinitely many solutions.
Then if we have the equations:
A*x- y = 8
2*x + y = B
We want to find A and B such that both equations are exactly the same thing.
Notice that in the first one we have negative y, while in the second we have positive y.
Then A needs to be minus the coefficient that multiplies x in the other equation, this means that:
A = -2
And B needs to be minus the corresponding therm in the other equation, then B = -8.
Then the system becomes:
-2*x - y = 8
2*x + y = -8
We can see that one equation is -1 times the other, so if we write both of them as linear equations in the slope-intercept form, we get:
y = -8 - 2*x
y = -8 - 2*x
So both equations are exactly the same thing, meaning that we have infinitely many solutions.
2. You have $500 to invest and have several options available to you.p a. Your banker shows you the graph at right to explain what you can earn if you invest with him. Does this graph represent simple or compound interest? How can you tell? What is the interest rate? Write an equation to represent how much money you would have as time passes. Let x represent time in years.
Answer:
replace x with number then multiply or divide
Step-by-step explanation:
When n = 3, which of the expressions below will be greater than 50? Select all that apply. A) (8n2÷9)⋅7 B) 2n2⋅3 –4n C) 4n2–6n+12 D) 7n+(n⋅8)
Answer:
A
Step-by-step explanation:
a)
[tex](8(3)^{2} / 9) * 7[/tex]
8(9) / 9 = 8 x 7 = 56
b)
[tex]2(3)^{2} * 3 - 4(3)[/tex]
2(9) * 3 - 12
18 * 3 = 54 - 12 = 42
c)
[tex]4(3)^{2} - 6(3) + 12[/tex]
4(9) - 18 + 12
36 - 18 = 18 + 12 = 30
d)
[tex]7(3) + (3 * 8)[/tex]
21 + 24 = 45
Beverly makes wreaths to sell for the fall season. She picked 430 pine cones from the wooded area near her house. If she uses 23 pine cones per wreath, how many wreaths can she make?
Answer:
18.7 wreaths
Step-by-step explanation:
Beverly makes wreaths to sell for the fall season. She picked 430 pine cones from the wooded area near her house. If she uses 23 pine cones per wreath, how many wreaths can she make?
From the above question:
23 pine cones = 1 wreath
430 pine cones = x wreaths
Cross Multiply
23 pine cones × x wreaths = 430 pine cones × 1 wreath
x wreaths = 430 pine cones × 1 wreath/23 pine cones
x wreaths = 18.695652174 wreaths
Approximately = 18.7 wreaths
If PR = 5x – 3 and QS = 3x – 5 and QS == PR, what are the length of the
diagonals?
Answer:
Step-by-step explanation:
5x - 3 = 2(3x - 5)
5x - 3 = 6x - 10
6x - 5x = 10 - 3
x = 7
QS = 3(7) - 5 = 16 units
PR = 5 × 7 - 3 = 32 units
3) A drawer contains 10 blue pens, and 10 red pens. Without looking, Mrs.
Stanton is going to take one pen from a drawer, use it, and then put it back in
the drawer. Then he is going to take another pen from the drawer to use. What
is the probability of Mrs. Stanton taking a red pen first and then taking a blue
pen? P(red, then blue)?
Answer:
25%
it's 50-50 for drawing a certain color pen each time.
so, the odds of drawing a red pen on the first draw is 50%
the odds of drawing a blue pen on the second draw is also 50%
so, to to *both* in order is 50% of 50%- or 25%
Lucy has 25600 in savings account that earns 2% interest per year the interest is not compounded how much would you have in 3 months
Answer:
25728
Step-by-step explanation:
Amount i would have in 3 months = simple interest + amount deposited
Simple interest = principal x time x interest rate
Principal = 25600
Interest rate = 2%
Time = 3/ 12 = 0.25
25,600 x 0.02 x 0.25 = 128
Total amount = 25,600 + 128 = 25728
Solve the inequality a+4/2>16
Answer:
a > 14
Step-by-step explanation:
I hope this helps!
The solution to the inequality expression a + 4/2 > 16 is a > 14
How to solve the inequality expression?The inequality expression is given as:
a + 4/2 > 16
Divide 4 by 2
a + 2 > 16
Subtract 2 from both sides
a > 14
Hence, the solution to the inequality expression a + 4/2 > 16 is a > 14
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Tony is installing a rectangular pool in the backyard. The pool
needs to have a length of 10 feet more than the width. The
backyard is a square shape with each of the sides measuring 5
feet more than 3 times the width of the pool. Write an
expression for the area surrounding the pool after the pool is
installed. Show your work. Enter the correct expression and
work in the box.
Pls I need helppppppp
Answer:
Abackyard = (3w + 5)2
Apool = w(w + 10)
Asurround = (3w + 5)2 - w(w + 10)
A=8w2+20w+25
The expression for the area surrounding the pool after the pool is
installed is (3w + 5)² - w(w + 10).
What is Area?The total space occupied by a flat (2-D) surface or the shape of an object is defined as its area. The area of a plane figure is the space enclosed by its boundary. The number of unit squares that cover the surface of a closed form is the figure's area.
We have,
The pool needs to have a length of 10 feet more than the width.
Then, the area of pool is
= w(w + 10)
and, The backyard have sides measuring 5 feet more than 3 times the width of the pool.
Then, area of backyard
= (3w + 5)²
Now, the area surrounding the pool after the pool is
= (3w + 5)² - w(w + 10)
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Identify the property shown.
5 + 3 = 3 + 5
Answer:
Communitive property
Step-by-step explanation:
It's the same if we switch both numbers around
5+3=8
3+5=8
What is the equation and how do you figure it out?
35 POINTS!
Help plz...
Match each expression with the equivalent expanded expression. -5 (2x + 3/5) x + 1.5 0.5 (2r + 3) -20 + 3 2 (4x-2) 8x - 4 1/3 (9 +81) 30 -3 (2/3x - 1) -10x - 3
Answer:
can you give us a link
Step-by-step explanation:
Katie buys several pairs of socks for $3 per pair.
Which equation represents Katie's total cost, c, when she buys s pairs of socks and why?
When can we not use the distributive property?
Answer:
Step-by-step explanation: We usually use the distributive property because the two terms inside the parentheses can't be added because they're not like terms;
Please help me ASAAAPPPP I need help rn !
Answer:
1099 in.²
Step-by-step explanation:
2πr²+2πrh
2×3.14×5×5+2×3.14×5×30
157+942
1099 in.²
Answer:
1099 in. ²
Step-by-step explanation:
because of how its measured
*1.
Given the equation, 4x + 2y = -6, (6 points) (8.EE
a. Rewrite the equation into its y-intercept form
We want to write the equation in the form
y = mx + b.
We need to solve for y.
4x + 2y = -6
Subtract 4x from both sides.
4x - 4x + 2y = -4x - 6
2y = -4x - 6
Divide both sides by 2.
2y/2 = (-4x - 6)/2
y = (-4x - 6)/2
y = -2x - 3
Done.
7m
6m
3m
Find rev surface area of each prism
Answer:
126m
Step-by-step explanation:
7 x 6 x 3
A cylinder has a height of 17 millimeters and a radius of 6 millimeters. What is its volume? Use ≈ 3.14 and round your answer to the nearest hundredth.
Answer:
1921.68mm^3
Step-by-step explanation:
Given data
H=17 millimeters
R=6 millimeters.
We know that the expression for the volume of cylinder is
V= πr^2h
substitute
V= 3.14*6^2*17
V= 3.14*36*17
V= 1921.68 mm^3
Hence the volume is 1921.68mm^3
giving brainliest to whoever explains best. don't answer if you don't speak english well. don't answer if you're 9 years old. don't answer if you don't understand the subject. don't answer anything other than QUESTION C. now stop wasting my points i beg
Answer:
Gillmans
Step-by-step explanation:
I feel like gillmans class did better cuz their class didnt have anyone get a score less than 60 but mr athens class had people who got below 50. Although athens class has people over 95 the most were 60-90 while gillmans was 70-90
NEED HELP ASAP!!!!
One side of a trapezoid has been extended and the dotted line forms a right angle with the extended line. Use this information to find m∠p.
A. 65°
B. 75°
C. 115°
D. 155°
Answer:
C. 115
Step-by-step explanation:
got it right on edg. pls mark brainliest
What is the magnitude of -3+4i
The Magnititude of -3 + 4i is 5.
When written in factored form, 6w^2-11w−2 is equivalent to
Answer:
(6w+1)(w-2)
Step-by-step explanation:
Answer:
13w - 2
Step-by-step explanation:
6w² - 11w - 2
24w - 11w - 2
13w - 2
Frank Bought a Tony Hawk Skateboard for 1/5 off the original price. If the Original price was $300 how much did frank pay?
Answer:
He paid $60 for this question
The marked price of a stove was $520. A worker bought the stove on hire purchase by making a down payment of $100, and twelve monthly payments of $40 each.
How much could she have saved if she had bought the stove for the marked price?
A) $40
B) $60
C) $100
D) $140
A ball is dropped from a height of 20 feet. It hits the ground and bounces up half as high as it fell. This is true for each successive bounce. What height does the ball reach on the fourth bounce
Answer:
1.25 m
Step-by-step explanation:
Given that :
Initial height of drop = 20 meters
Rebound after each drop = 1/2 of height
Height after 4th rebound = 5th term of a geometric series
An = a1 * r^(n-1)
a1 = first term = initial drop height
r = common ratio = ratio of rebound per drop = 1/2 = 0.5
A5 = 20 * 0.5^(5 - 1)
A5 = 20 * 0.5^4
A5 = 20 * 0.0625
A5 = 1.25 m
Hence height after 4 reboubd = 1.25 m
Using another method :
1st bounce height = 20 * 0.5 = 10
2nd bounce height = 10 * 0.5 = 5
3rd bounce height = 5 * 0.5 = 2.5
4th bounce height = 2.5 * 0.5 = 1.25
Find the value of x.
Answer:
x= 37.5°
Step-by-step explanation:
∠CBD
= 180° -75° (adj. ∠s on a str. line)
= 105°
∠BCD= ∠BDC (base ∠s of isos. △BCD)
∠BCD= x
∠BCD +∠BDC +∠CBD= 180° (∠ sum of △BCD)
x +x +105°= 180°
2x= 180° -105°
2x= 75°
x= 37.5°
Alternative working:
∠BDA= (180° -75°) ÷2 (base ∠s of isos. △ABD)
∠BDA= 52.5°
∠BDA +∠BDC= 90°
52.5° +x= 90°
x= 90° -52.5°
x= 37.5°
Keisha conducts a survey to determine how many siblings each of her classmates has. The data are shown below.
0, 1, 0, 2, 2, 1, 3, 0, 4, 0, 1, 2
What is the mean value of Keisha’s data?
A. 0.75
B. 1
C. 1.3¯
D. 2
Answer:sorry its c
Step-by-step explanation:
The mean value of Keisha’s data is 1.333333.
What is Mean?The mean is the average of a set of variables in mathematics and statistics. There are several methods for computing the mean, including the simple arithmetic mean (add up the numbers and divide the total by the number of observations),
We have the data,
0, 1, 0, 2, 2, 1, 3, 0, 4, 0, 1, 2.
So, the mean value of data is
= (0 +1 + 0 + 2 + 2 + 1 + 3 + 0 + 4 + 0 + 1 + 2)/12
= 16/12
= 4/3
= 1.33333
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