Lisa uses 2 pieces of copper wire, each 9 feet long, for
each robot she builds. If she started with a 500-yard roll
of copper wire, which of the following represents the
number of yards of wire left on the roll after Lisa built r
robots? (3 feet = 1 yard)

Answers

Answer 1

Answer:

500 - 6r = t

Step-by-step explanation:

500 represents the amount of copper wire Lisa started with.

-6r represents how much copper wire (in yards) is used on the robot (9*2 / 3 = 6).

t represents the total wire left after Lisa builds r robots.


Related Questions

What is the inverse of the function f(x) = 2x – 10?

Answers

Answer:

The inverse f-1(x) = ( x + 10)/2.

Step-by-step explanation:

f(x) = 2x - 10

Find x in terms of f(x):

2x = f(x) + 10

x = (f(x) + 10))/ 2

Replace x by the inverse f-1(x) and f(x) by x:

f-1(x) = (x + 10)/2.

Find the equivalent equation that results from adding 5 to both sides first and then multiplying
both sides by 2. Show each step. You do not have to solve the equation at the end.

Answers

Answer:

5d = 30

Step-by-step explanation:

1. first you need to add 5 to both sides

   d-4+5 = 2+5

2. then you need to combine like terms

   d+1 = 7

3. after that you have to multiply both sides by 5

   5(d+1) = 7(5)

4. simplify

   5d + 5 = 35

         -5     -5

   5d = 30

−7x−9 - -4x^2+3x-5−4x

Answers

Answer:

4[tex]x^{2}[/tex] − 8 − 14

Step-by-step explanation:

1. Simpify

2. Subtract the numbers

3. Combine like terms

4. last but not least rearrange the terms

Hope this helped :)

(3x2 – 5x + 6) + (2x2 + 7x - 9)

Answers

Answer:

Step-by-step explanation:

3x^2 + 2x^2 - 5x + 7x + 6 - 9

5x^2 + 2x - 3

Multiply five and four-sevenths negative two and two-fifths .

A negative ten and eight thirty-fifths
B ten and eight thirty-fifths
C negative thirteen and thirteen thirty-fifths
D thirteen and thirteen thirty-fifths s

Answers

Answer:

C!!!!

Step-by-step explanation:

i just worked out the equation by turning them into proper fractions and multiplying! hope this helped, have a nice day <3

Answer:

The answer is C.

negative 13 and 13 over 35

Eliminating a negative and changing our operation.

=5 4/7 − 2 2/5

Rewriting our equation with parts separated

=5 + 4/7 − 2 − 2/5

Solving the whole number parts

5−2=3

Solving the fraction parts

4/7 − 2/5 = ?

Find the LCD of 4/7 and 2/5 and rewrite to solve with the equivalent fractions.

LCD = 35

20/35 − 14/35 = 6/35

Combining the whole and fraction parts

3 + 6/35 = 36/35

Solution by Formulas

First:

Convert any mixed numbers to fractions.

Then your initial equation becomes:

39/7 + −12/5

Applying the fractions formula for addition,

=(39×5)+(−12×7)/7×5

=195 + −84/35

=111/35

=36/35

Order the numbers below from least to greatest.


Answers

Answer:

I don't believe any of these are correct.

I think the real order is:

-9/4, -1, [tex]\sqrt{6}[/tex], 1/4, 3.9

But I would choose D if I were you.

#39 only show work pls hurry tysm

Answers

Let earn per hour be x

The equation will be

[tex]\\ \sf\Rrightarrow 6.5(x)=42.25[/tex]

[tex]\\ \sf\Rrightarrow 6.5x=42.25[/tex]

[tex]\\ \sf\Rrightarrow x=\dfrac{42.25}{6.5}[/tex]

How do I solve this

Answers

Answer:

it's 67

Step-by-step explanation:

Step-by-step explanation:

the base is already same.

-9 + (-8) - (-7) = -10

= m^-10

state the reasons which is following pairs are equal

Answers

Answer: sorry would have answered if there was a picture attached to it

A triangular park has sides 80m, 64m and 48m.​

Answers

Answer:

If your trying to find the perimeter it's 192.

Which interval notation represents the set of all numbers greater than or equal to -8
and less than or equal to -3?
Plz help ASAP

Answers

a is the right answer

A jacket costs $129.95. The sales tax rate is 8%. If prepresents the price of the jacket, and the sales tax rate, which TWO expression
represent the total cost of the jacket?
A) p+гр
B) P - 0.08
C)1.08p
D) (p-r)+p
E) 0.92p

Answers

Answer:

A and C

Step-by-step explanation:

A. P+rp would be 129.95+.08(129.95)=140.35

C 1.08p=1.08(129.95)=140.35

Which of these is a factor in this expression?
624 – 4+9 (73 + 3)
O A. -4+9 (+ 3)
O B. (18+ 3)
O C. 624 – 4
O D. 9 (y2 + 3)
URGENT

Answers

Answer:

May be the ans is option C and A

What is 10x^2 times 9x^2

Answers

90x^4

..................

8 - 4s = s + 13

what is s?

Answers

Answer:

-5s = 5

S= - 1

Step-by-step explanation:

Udndkdjdndjxbdnekdjdndkdjdjd

The answer would be s=1

Because 8-4s=s+13
-8+4s= -8
-4s= s+5
+4s=+4s +5
5 divided by 5 gives you positive 1. Hope this helps

A circle is the set of points around that are all the SAME distance from a central point inside the circle.
O True
O False

Answers

Answer:

True

Step-by-step explanation:

The statement is TRUE and is the basic definition of a circle

true, if they were diff distances it would be an oval or a squashed circle or whatever

Which equation represents a line which is perpendicular to the line y =
= -x - 72
6x - 5y = 30
Oby - 52 = 18
Submit Answer
O 6x + 5y = 20
O 5x + 6y = 42
PLS HELP ASAP

Answers

Answer:

[tex]5x + 6y = 42[/tex]

Step-by-step explanation:

Hope it is helpful....

Solve: 2 3/4 ÷ 1 4/7=
Help?

Answers

Answer:

[tex] \frac{11}{7} [/tex]

Step-by-step explanation:

[tex]2 \frac{3}{4} \div 1\frac{4}{7} [/tex]

[tex] = 2 \frac{3}{4} \times \frac{4}{7} [/tex]

[tex] = \frac{11}{4} \times \frac{4}{7} [/tex]

[tex] = 11 \times \frac{1}{7} [/tex]

[tex] = \frac{11}{1} \times \frac{1}{7} [/tex]

[tex] = \frac{11 \times 7}{1 \times 7} [/tex]

[tex] = \frac{11}{1 \times 7} [/tex]

[tex] = \frac{11}{7} [/tex]

Solve X/3 - 2X+1/3 = X-3/5​

Answers

Answer:

Answer is 3

Step-by-step explanation:

x/3-2x/1+3 =x-3/5

x/3-x/3 = x-3/5

0=x-3/5

0=x-3

3=x

sothat, x = 3 ans

Suppose the function E(c) represents the earnings of a volleyball team from selling c cupcakes. They are selling each cupcake for $2. They only bought enough supplies to make 100 cupcakes. Describe an appropriate domain and range of this function using interval notation.

Answers

Using domain and range concepts, it is found that:

An appropriate domain for the function is: [tex]c \in [0,100][/tex]An appropriate range for the function is [tex]E \in [0,200][/tex].

------------------------------

The domain of a function are the values that the input can assume.The range of a function are the values that the output can assume.

------------------------------

The function E(c) represents the earnings of selling c cupcakes.The input is the number of cupcakes sold c.The output is the earnings E.

------------------------------

They have enough supplies to make 100 cupcakes, thus, at most 100 cupcakes can be sold, meaning that an appropriate domain for the function is: [tex]c \in [0,100][/tex]If no cupcakes are sold, the earnings will be of $0. If all 100 cupcakes are sold, the earnings will be of $200, as each is sold for $2, meaning that an appropriate range for the function is [tex]E \in [0,200][/tex].

A similar problem is given at https://brainly.com/question/2145599

Which Statement is not true based on the figures below?

Answers

the first statement is incorrect.

A statement that is not true based on the figures would be A; CD = JK

WE are given the figure of two similar pentagon figure that are;

ABCDE and JKLMN

Similar figure are zoomed in or zoomed-out (or just no zoom) version of each other. For two similar figures, the pair-by-pair similar angles of those two similar figures are called corresponding angles tthat are of same measurement.

Thus, we can see that the sides are similar to each other.

AB = JK

CB = LK

CD = LM

DE = MN

AE = JN

Since CD = JK is not valid

Therefore, we can conclude that the first statement is incorrect.

Hence, the answer is A.

Learn more about similar figure here;

https://brainly.com/question/29291672

#SPJ3

Evaluate (6x + 1) – (2x + 8) when x = 3.

Answers

The answer is 5 I think

Sales Tax - You go to the store and purchase a shirt for $33.99, how much will you pay
after 8.25% sales tax.

Answers

Answer:

$95.17

Step-by-step explanation:

[tex] 33.99 \times 0.0825[/tex]

[tex] = 2.80[/tex]

[tex] 33.99 + 2.80[/tex]

[tex] = $95.17[/tex]

please help me is for my homework​

Answers

Answer:

[tex]\frac{59}{100}[/tex]

Step-by-step explanation:

first divide 59 by 100

[tex]\frac{59}{100}[/tex]

now simplify

as u can see we can not simplify and it is the last stage so the answer will be

[tex]\frac{59}{100}[/tex]

In 2015, the city of Miami had a population of 441,000 people and an area of 36 square miles. What was the population density of Miami, in people per square mile, in 2015? 10,750 12,250 14,250 16,750​

Answers

Answer:

12,250

by dividing the 441000 by 36, I got the answer.

The population density of Miami, in people per square mile, in 2015 was 12,250

The given parameters are:

Population = 441,000 peopleArea = 36 square miles

The population density of a place is the ratio of the population to the unit square area.

So, we have:

[tex]Density=\frac{Population}{Area}[/tex]

Substitute known values

[tex]Density=\frac{441000}{36}[/tex]

[tex]Density=12250[/tex]

Hence, the population density of Miami, in people per square mile, in 2015 was 12,250

Read more about population density at:

https://brainly.com/question/13890769

**Answers needed fast**

Answers

Answer:

a) 1000 = 10^3= 10*10*10

b) 100*100= 10^4 = 10*10*10*10

Step-by-step explanation:

Answer:

a.   10^3        =10*10*10

b.   10^4        =10*10*10*10

The length of a rectangle is twice its width.
The perimeter of the rectangle is 126 feet.

Answers

Answer: Length = 42ft Width = 21ft

Step-by-step explanation:

Let "w" be width

W = 21ft

w x 2 = L

L = 42ft

Perimeter:

42+42+21+21

=126

Write -9-(-6) using addition

Answers

-9+6 =-3 , negative times negative is positive
Negative×negative=positive
∴-9-(-6)=-9+6=-3

Hope my answer helped u :)

1. Is (2, 4) a solution to the equation
y = x - 2?
1 . yes
2 . no ?​

Answers

no.......................

If the reserve rate is 3% and a bank receives a deposit of $16,000, how much of the $16,000 is the bank free to loan out?

Answers

The reserve rate is what the bank keeps. This means it can loan out ( 100% -3%) = 97% of the deposit.

16,000 x 0.97 = $15,520 can be loaned out.

Answer: C

Step-by-step explanation:

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