Answer:
A = -5/3
B = 52
C = 13
D = -2
Step-by-step explanation:
I recommend using Photomath. It both solves such math problems and also provides explanations!
Answer:
A = -5/3
B = 52
C = 13
D = -2
Mr. Townsend needs to make 13 pairs of butterfly wings for costumes for a play. Each pair of wings is made with yard of fabric. The fabric costs $8 per yard.
You'll apply properties of multiplication in the following steps to find the total cost of the fabric.
1. Use multiplication to write an expression for the amount of fabric needed to make 13 pairs of wings. (2 points)
2. Multiply the amount of fabric by the price per yard to find an expression for the total cost.(2 points)
3. Use the associative and commutative properties to rearrange the terms in the expression to make it easier to calculate. Explain why the rearranged expression is easier to work with. (3 points)
4. Simplify your expression to find the total cost. Show your work. (3 points)
Answer:
Step-by-step explanation:
1. 13 x 8 - One pair of wings needs one yard of fabric, which is $8. Therefore, one pair of wings cost $8.
2. 104 - The result of multiplying 13 x 8
3. 13 x (4 x 2) - This is easier because smaller numbers are more familiar and understandable to our brains.
4. 13 x (4 x 2)
13 x 4 = 52
52 x 2 = 104
If x and y vary directly and y is 3 when x is 4, find y when x is 12.
Answer: Y is 9 when X is 12.
Step-by-step explanation:
Here is how you do it.
1. Make a table of x and y
x: 4,
y:3,
2. Keep continuing the table with list of numbers until x=12
x:4,8,12
y=3,6,9.
As you can see, when x is 12 y is 9.
What are some possible solutions for the following inequality?
-3x+5x-2>-4x+1
Answer:
Any value greater than 0.5.
Step-by-step explanation:
First, set the inequality to an equation and solve for x:
[tex]-3x+5x-2=-4x+1\\2x-2=-4x+1\\2x-2+4x=-4x+1+4x\\6x-2=1\\6x-2+2=1+2\\6x=3\\(\frac{1}{6})6x=3(\frac{1}{6})\\x=\frac{1}{2}[/tex]
This is the value at which the inequality equals 0. To test the inequality and determine whether x is greater or less than [tex]\frac{1}{2}[/tex], choose any value of x that is easy to work with on either side of [tex]\frac{1}{2}[/tex]:
For x=0:
-3(0)+5(0)>-4(0)+1
0>1 This is not a true statement. Therefore, x is not less than [tex]\frac{1}{2}[/tex].
For x=1:
-3(1)+5(1)>-4(1)+1
-3+5>-4+1
2>-3 This is a true statement. Therefore, x is any value greater than [tex]\frac{1}{2}[/tex].
50 points!!!!! will give brainlest to the fastest answer
the perimeter of an isosceles triangle is 34 ft. the length of one side is 14 ft. the length of the two other sides are equal find the length of the other two sides
Trail A is 3.1 miles long. Trail C is 3 1/4 miles long. Trail B is longer than trail A but shorter than trail C. What is a reasonable distance for the length of trail B?
PLEASE HELP THIS WAS DUE FRIDAY BUT I DIDN'T HAVE TIME
THANK YOU FOR YOUR HELP
Answer:
yes
Step-by-step explanation:
if we put 3 1/4 to decimal for we get 3.25
Trail B is shorter than that
Trail A is already 3.1
Trail B is obviously between those two
so 3.15
Find the percent change if a $20 item now sell for $15.
Answer:
25% change
Step-by-step explanation:
find change by diff/org
so 5/20
5/20 =?/100
multiply by 5
25/100=?/100
?=25
Please help asap! Tysm!♡♡
What's g
-6g+5=4g-2-3g
Answer:
g=1 is the correct answer
Answer:
Step-by-step explanation: g=1 (I think)
At the beginning of an experiment, a scientist has 204 grams of radioactive goo. After 120 minutes, her sample has decayed to 3.1875 grams.
What is the half-life of the goo in minutes?
Find a formula for G(t), the amount of goo remaining at T. G(t)=
How many grams of goo will remain after 50 minutes?
Answer:K= 240/5.9953
Step-by-step explanation: i did the math for the first question lol
Without doing any calculations, compare expression A to expression B. 56×250 (13×250)+(12×250) Choose the words to complete the comparison. Expression A is expression B.
Answer:
The distributive law of multiplication states that when a number is multiplied with the sum is equal to the number multiplied by each addend with the number and then sum of the both products.
by example a*(b+c)=(a*b) + (a*c)
Here the expression A is (5/6)*250
the expression B is ( 1/3 × 250 ) + ( 1/2 × 250 )
expression B is ( 1/3 × 250 ) + ( 1/2 × 250 )
=250*(1/3+1/2) applying distributive law of the multiplication
=250*((2+3)/6)
=250*(5/6)
=(5/6)*250
Therefore the expression A is equal to the expression B.
Step-by-step explanation:
What is the value of this numeric expression:
19 x 10 to the power of 2
Thank u!
Answer: 36100
Step-by-step explanation:
19x10
190
190^2
36100
Answer:
If the question is [tex]19 * 10^{2}[/tex], then the answer is 1,900. However, if the question is [tex](19 * 10)^{2}[/tex], then the answer will be 36,100.
Step-by-step explanation:
19 × 10^2= 19 × 100= 1,900
(19 × 10)^2= 190^2= 36,100
The coordinates of the vertices of the triangle shown are F(1,9), G(5,6), and H(5,9).
What is length of segment FG in units?
Please help me im struggling and i need to get to 100%...
Answer:
Answer is 40
Step-by-step explanation:
literally all you have to do is subtract 70 - 30 = 40
so your answer would be 40 another way is 30 + 40 = 70
just have to see what number would get you to 70 if you did the problem the second way.
The cost of renting an inflatable bounce house for 2 hours is $53.50. At this rate, what is the cost of renting the bounce house for 5 hours?
Answer:80.25
Step-by-step explanation:
(-1/3)⁴(-1/3)²
help me please
Answer:
1/3⁶
Step-by-step explanation:
(-1/3)⁴(-1/3)²
(1⁴/3⁴)(1²/3²)
(1/81)(1/9)
1/729
1/3⁶
hope it helps. Please mark brainliest.
Select each situation that can represent a proportional relationship.
The price of buying x gallons of gas at $3 a gallon.
The total amount of money a child earns from doing chores when she earns $10 a week for w weeks.
The total amount of weight a kitten gains in w weeks when it gains 4 ounces per week and started at a weight of 6 ounces.
The price of renting a scooter for m miles when it costs $0.75 per mile plus a base fee of $2.50.
Please help me on the question
The median age for the Chess Club members is greater than the median age for the Checkers Club members.
this is a question i made and i want y'all to solve it with little to no context
why is pink number 4
Answer: because grass is soggy
Step-by-step explanation:
grass is icky
PLEASE PLEASE PLEASE HELP +30 POINTS!
find each product -7/9 x 3/5
a. -27/45
b. -7/15
c. 7/15
d. 27/45
-2/5 x -1 1/4
a. -1 1/10
b. -1/2
c. 1 1/10
d. 1/2
1 3/5 x - 3/4
a. -20/24
b. -9/20
c. -1 1/5
d. -1 9/20
-7/8 x - 1 3/7
a. -1 3/8
b. -1 21/56
c.1 3/8
d.1 1/4
Answer:
1.option b
2.option c
3.option non (-39/20)
4.option a
Step-by-step explanation:
1.
-7/9 x 3/5
[tex] \frac{ - 7}{9} \times \frac{3}{5} \: \\ (3 \: and \: 9 \: are \: common \: so \: we \: can \: simplify them) \\ \frac{ - 7}{3} \times \frac{1}{5} \\ \frac{ - 7 \times 1}{3 \times 5} = \frac{ - 7}{15} [/tex]
Help me out here! I'm like stuck and I could use a lot of help so please comment your answer down below please I really need it
Answer:
Step-by-step explanation: okay see how there is mainly Y’s in the box? Try clicking Y and see if it’s right! I may be wrong
question 8 math homework
Answer:
The correct choice is the first one
Step-by-step explanation:
Going via street A and street B will be 3.5 miles
Going directly along street C will be 2.5 miles
I need help. Pls show work.
Answer:
There are 16 nickels and 15 dimes.
Step-by-step explanation:
let x = number of dimes
let y = number of nickels
x + y = 31
.1x + .05y = 2.30
Solve x + y = 31 for x
x = 31 - y
multiple the second equation by 100 to eliminate the decimals.
10x + 5y = 230 Substitute 31 - y for x
10(31-y) + 5y = 230 Distribute the 10
310 -10y + 5y = 230 Combine like terms
310 -5y = 230 Subtract 310 from both sides
-5y = -80 Divide both sides by -5
y = 16
There are 16 nickels.
Plug in 16 for y to solve for x
x + y = 31
x + 16 = 31 Subtract 16 from both sides
x = 15
There are 15 times.
Check:
10x + 5y = 230
10(15) + 5(16) = 230
150 + 80 = 230
230 = 230
HELP PLS!!!
A house has decreased in value by 38% since it was purchased. If the current value is $217,000, what was the value when it was purchased? $
Answer:
$82460
Step-by-step explanation:
$217000×38%
$8246000/100=$82460
Answer:
$82460
Step-by-step explanation:
multiply the 38% by the value of the house
Please help!!(50points!!)
Which graph represents this system?
2 x minus 5 y = negative 5. y = two-fifths x + 1.
A) On a coordinate plane, 2 lines go through points (negative 5, negative 1) and (0, 1).
B) On a coordinate plane, a line goes through (0, 1) and (5, 3) and another goes through (0, negative 5) and (5, negative 3).
C) On a coordinate plane, a line goes through (0, 1) and (5, 3) and another goes through (0, 1) and (5, negative 1).
D) On a coordinate plane, a line goes through (0, 1) and (negative 5, negative 1) and another goes through (negative 5, negative 3) and (0, negative 5).
Answer:
Option A.
Step-by-step explanation:
When x = - 5, y = - 1,
lhs of (1) = - 10 + 5 = - 5
lhs of (2) = - 1 + 2 = 1
When x = 0, y = 1,
lhs of (1) = 0 - 5 = - 5
lhs of (2) = 1 - 0 = 1
One boxcar of a model train measures 6 inches in length. The actual length of a boxcar is 606 inches (50.5 ft). What is the scale of the model?
To find the scale of the model train boxcar, we need to determine the ratio of the actual size of the boxcar to the size of the model. We can do this by dividing the actual size of the boxcar by the size of the model:
scale = actual size / model size
Plugging in the values from the problem, we get:
scale = 606 inches / 6 inches
Simplifying this expression gives us:
scale = 101
So, the scale of the model train boxcar is 101. This means that for every 1 inch of the model, there are 101 inches in the actual size.
Find the distance between the points (6.6,7.9) and (6.6, 4.7).
To find the distance between the points (6.6,7.9) and (6.6,4.7), we can use the distance formula:
distance = √((x2 - x1)^2 + (y2 - y1)^2)
Plugging in the coordinates of the two points, we get:
distance = √((6.6 - 6.6)^2 + (4.7 - 7.9)^2)
Simplifying this expression gives us:
distance = √((0)^2 + (-3.2)^2)
Which simplifies to:
distance = √(10.24)
Finally, taking the square root of both sides gives us:
distance = 3.2
So, the distance between the points (6.6,7.9) and (6.6,4.7) is approximately 3.2.
A plant will become invasive when the number of plants reaches 10,000. Model the situation with an exponential growth function. How many years will it take for the plant to become invasive? Explain how you found the situation.
It would take 43 years for the plant specie to become invasive.
How many years would it take the plants to become invasive?We know that the increase of the plant is following the exponential function and this can be seen from the question that we have here. We now have to create a model that we can use to solve the question.
Using
Pt = Poe^rt
Pt = population at time t
Po = initial population
r = population growth rate
t = time taken
Then;
10000 =500e^0.07t
10000/500 = e^0.07t
20 = e^0.07t
ln20 = 0.07t
t = ln20/0.07
t = 43 years
Learn more about invasive species:https://brainly.com/question/21452505
#SPJ1
The equation c = 14.25t represents the total cost (c), in dollars, for a certain number of movie tickets (t).
Which table represents the equation?
Number of Tickets Cost (dollars)
0.07 1
0.14 2
Number of Tickets Cost (dollars)
14.25 1
28.5 2
Number of Tickets Cost (dollars)
1 14.25
2 28.50
Number of Tickets Cost (dollars)
1 0.07
2 0.14
Answer:
C
Step-by-step explanation:
1. define the variables for c and t
c = total cost (in dollars)
t = # of movie tickets
2. draw a table
x: 1,2,3,4,5...
y: 14.25, 28.5, 42.75, 57, 71.25...
Answer:
C
Step-by-step explanation:
Determine whether the relation is a function
Answer:
Yes
Step-by-step explanation:
To determine if this is a function we can put the vertical line test into place, in which we'd go from each point and construct a vertical downward, if that line intersects with any given point it is not a function.
In this case it is a function.