Mathematics Middle School

A pan balance has 3 cubes on one pan and 11 cubes on the other pan. Lucy thinks she should add 7, 8, 9, or 10 cubes to make the pans balance. How can you use the equation 3 + c = 11 to find the number of cubes Lucy should add?

Answers

Answer 1

Answer:

Step-by-step explanation:

11-3=c

c=8

Answer 2

The number of cubes Lucy should add is 8.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Given that, a pan balance has 3 cubes on one pan and 11 cubes on the other pan.

The equation to represent the situation is 3+c=11

The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.

Now, c=11-3

c=8

Therefore, the number of cubes Lucy should add is 8.

To learn more about an equation visit:

https://brainly.com/question/14686792.

#SPJ2

Related Questions

Can you hep me with this question...

Answers

Answer:

so like I just looked it up so try

-4

----

-4

Answer:

10/27

Step-by-step explanation:

To figure this out, first subtract 8/15 from 6/5.

Before we can do that though, we need a common denominator. The LCM of 5 and 15 is 15. (5 * 3 = 15; 15 * 1 = 15) 8/15 already has 15 has a denominator, so that doesn't need to be modified. 6/5 becomes 18/15 (6 * 3 = 18).

Subtract 8/15 from 18/15 to get 10/15. This simplifies to 2/3.

Now, multiply 2/3 by 5/9 (reciprocal of 9/5). That equals 10/27. There is no need to reduce, as it is already simplified.

Which expression is equivalent to 3d - d + 4 + d

A. 4d + 4
B. 4d - 4
C. 3d - 4
D. 3d + 4

Answers

Answer:

Step-by-step explanation:

D

Explanation: 3d - d + 4 + d
Collect like terms
3d - d + d + 4
- d + d = 0
Answer = 3d + 4

An equation is shown. What is the value of 12x that makes the equation true?

12x + 4x = 15/2 + 4x

pls halp

Answers

Answer:

x = 5/8

Step-by-step explanation:

Δ MNO ~ Δ PQR

What is the length of x?

1 4/5

1 7/9

1 3/5

2 1/2

IF U STEAL POINTS U GET REPORTED

Answers

The value of x in the given triangle is [tex]1\frac{3}{5}[/tex]

What are the similar triangles?

Similar triangles have the same corresponding angle measures and proportional side lengths.

Given that, two triangles are similar, Δ MNO ~ Δ PQR,

According to definition of similar triangles,

PR/MO = QP/NM

x/4 = 2/5

x = 8/5

x = [tex]1\frac{3}{5}[/tex]

Hence, the value of x in the given triangle is [tex]1\frac{3}{5}[/tex]

Learn more about similar triangles, click;

https://brainly.com/question/29731302

#SPJ2

pls someone plsss help meeeee

Answers

Answer:

student a answered correctly

Step-by-step explanation:

student b didn't multiply the crossproducts

Answer:

Student B has the correct answer

Between the two proportions you are looking for number which are related in the same way.

When dividing 45 by 15 you get 3, you should also get 3 when dividing the proportion next to it.

To Solve-

Cross multiply 6 x 15 =90

Then divide by 45

The correct answer is 2

Will award brainliest

Answers

Infinite solution Bc both sides are equal

Which expression is equivalent to 4s + 3 - 3 - s

A. 3s + 6
B. 4s + 0
C. 3s
D. 3s + 1

Answers

Answer:

C. 3s

Step-by-step explanation:

2 2/5 multiplied by 2 multiplied by 3 1/5

Answers

Answer:

15 9/25

Step-by-step explanation:

1 Convert 2\frac{2}{5}2

to improper fraction. Use this rule: a \frac{b}{c}=\frac{ac+b}{c}a

ac+b

\frac{2\times 5+2}{5}\times 2\times 3\frac{1}{5}

2×5+2

×2×3

2 Simplify 2\times 52×5 to 1010.

\frac{10+2}{5}\times 2\times 3\frac{1}{5}

10+2

×2×3

3 Simplify 10+210+2 to 1212.

\frac{12}{5}\times 2\times 3\frac{1}{5}

×2×3

4 Convert 3\frac{1}{5}3

to improper fraction. Use this rule: a \frac{b}{c}=\frac{ac+b}{c}a

ac+b

\frac{12}{5}\times 2\times \frac{3\times 5+1}{5}

×2×

3×5+1

5 Simplify 3\times 53×5 to 1515.

\frac{12}{5}\times 2\times \frac{15+1}{5}

×2×

15+1

6 Simplify 15+115+1 to 1616.

\frac{12}{5}\times 2\times \frac{16}{5}

×2×

7 Use this rule: \frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}

\frac{12\times 2\times 16}{5\times 5}

5×5

12×2×16

8 Simplify 12\times 212×2 to 2424.

\frac{24\times 16}{5\times 5}

5×5

24×16

9 Simplify 24\times 1624×16 to 384384.

\frac{384}{5\times 5}

5×5

384

10 Simplify 5\times 55×5 to 2525.

\frac{384}{25}

384

11 Convert to mixed fraction.

15\frac{9}{25}

15 9/25

2 2/5 times 2 times 3 1/5= 24/25

pls help me with thissssss

Answers

divide the two numerators and get 3.25 multiply 13 hours by that and the answer to the first part is 42.25

yes that’s very true

Find the sales tax....

Answers

Answer:8.75

Step-by-step explanation:

I NEED biggggggg brain helpers XD

Answers

Answer:-18x^5y^{6z+2}

Step-by-step explanation:

dont feel like explaining

Is true artificial intelligence possible? Write a short essay and explain your opinion.

Answers

KSKSKSKSKSKSKSKSSKSKSK

PLEASE HELP!! I'LL GIVE BRAINLEST!!

Use the formula P = 2l + 2w. Find the perimeter of a rectangle with a length of 12.9 ft and a width of 19.3 ft. Show all of your work.

Answers

p = 2(12.9) + 2(19.3)
P = 25.8 + 38.6
P = 64.4

what is 3(x + 3) equal to

Answers

3x + 9 if you don’t know what x equals.

Answer:

3x+9

Step-by-step explanation:

The spinner is spun 48 times. What is a reasonable prediction of landing on the letter E?

Answers

Answer:

because that is the right amount of times you spun it

Step-by-step explanation:

can someone help me out :P

Answers

-5.2<.-4.75<-9/2.....

Hello, I would really like some help on this!! Please leave an explanation of how you got your answer! Thank You!

Answers

1a) To find the total area, you must find the area of the triangular part that is missing, then subtract this from the area of the rectangle. For the triangle’s area, you need to know the width (2m) and length (2m). For the rectangle’s area you need to know the width (3m) and length (4m).
1b) the total area is 10m^2 (10 meters squared). This is found by subtracting the triangle (.5x2x2=2) from the rectangle (3x4=12).

I don’t know how to answer this question sorry. I’m just answering so the other person can get brainliest.

Can someone plzzz help Ik I’m need!!!

Answers

270 because 120/24 = 5 5x54 = 270

I agree with the first person

if giselle had five books sets and gave 9 books away and has 26 left how many were in the bookset

Answers

Answer:

7 in each book set

Step-by-step explanation:

26+9= 35 (total # of books)

35/5= 7 ( # of books in a book set)

26 + 9 = 35
35 / 5 = 7
So the answer is 7 books per book set!
Hope it helps

HELP 2 questions answer both

Answers

Answer:

n=4x(-12.4)

n=-4x12.4

n=-49.6

Multiply both sides of the equation by

Step-by-step explanation:

Answer:

n=-49.6.Multiple by -12.4

Use substitution to find the ordered pair of the following system of equations:

y=6x
y=5x+7
(_,_)

Answers

Answer:

first substitute 'y' in 2nd equation by right side of 1st one and you get:

now substract 5x from both sides of 2nd equal and you get:

as a result of the equal above you get:

now substitute x in very first equation by the result from above (x=7):

Step-by-step explanation:

sorry if its wrong

6x = 5x + 7
-5x -5x
——————
x = 7
y = 6x
y = 6(7) = 42

Your answer: (7, 42)

HELP I will give Brainliest If Correct!! (Please Explain)

Answers

You need to write this is scientific form.

In this case it’s: 0.4 * 10^11

3.8 × 10^10 you have to round the number

Jada's brother drives 18 miles to work and then a quarter of that distance again. How far does Jada's brother drive?

Answers

18+4.5

A quarter of eighteen is 4.5

(repost) Help Please!! I will give Brainliest!!

Answers

3x10^10 cubic feet if you need the work let me know

3x10^10 is the correct answer

What is the area of `∆STR`?

A.
30 square feet
B.
34.5 square feet
C.
57.5 square feet
D.
60 square feet

Here another one T^T

Answers

i believe the answer is A i

It’s A I took the test

46+ 2/7w
w= -1/2
You don't need to show your work

Answers

46.1428 or -46(3/14)

After a power failure, the temperature in a freezer Increased at an average rate of 3.5 °F per hour. The total Increase was 24.5 °F. Enter and solve an equation to find the number of hours until the power was restored. Let x represent the number of hours it takes for the temperature to increase to 24.5 °F.

The equation to find the number of hours until the power was restored is ____x = _____

The number of hours until the power was restored is ______ hours.

<Please fill in the blanks I will give you brainliest if you answer correctly>

Answers

Answer:

3.5x=24.5

3.5x7=24.5

X=7

Step-by-step explanation:

3.5 times what equals 24.5

3.5x1=3.5

3.5x2=7

3.5x3=10.5

Keep doing this and increase the number you are multiplying 3.5 by until your answer is 24.5.

on the left side of the triangle, it says 10 cm, on the right side of the triangle, it says 18 cm, below the triangle, it says 15 cm. find the area of the triangle and answer this question is square cm.

Answers

Area formula for a triangle is 1/2BxH

B=15
H=10

1/2(15)= 7.5

7.5 x 10= 75

So the area is 75 square cm :)

round 0.615 to the nearest Hundreth pLEASEEEE HSLPPPP

Answers

Answer:

0.62 is the answer

Step-by-step explanation:

Answer:

0.62

Hope this helped have a great day

The spinner is spun 240 times. What is a reasonable prediction
of it landing on a number less than 3?

Answers

Answer:

60 times

Step-by-step explanation:

2/8 pieces of the circle are less than three

2/8 = 25% chance of landing less than 3

240 * 25% = 60

Other Questions

Which statement about the government of republicas is true?a. Native Americans would abide by Spanish law but could govern themselves.b. Native Americans could govern themselves however they saw fit.Native Americans and friars were all governed by the republicas.d. Native Americans had power over the friars due to the republicas. this is the last question how are Ionic and Covalent Bonds are formed with examples ? A, B, C, and D are the four angles of a parallelogram. a.Show that angle A = angle Cb.Show that angle B = angle D Which line is an example of trochaic terameter?A. For the four winds blow in from every coastB. Peter, Peter Pumpkin eaterC. Is This a dagger I see before me D. Rough winds I do shake the darling buds of MayThanks to whoever answers this!!! can anyone help? I need an answer fast!? Write the ratio of ears to toes on an average person? (in simplest form)type your answering using one of the following... (NO SPACES)to Select the correct answer.Jake is a farmer who owns horses and cattle. How often should Jake deworm his animals to keep them healthy?OAonce every two yearsOB.once a yearO c. four to six times a yearODonce a week Which of the following is not a correct statement aboutthe pie chart?More students have hazel eyes than blue.Most of the students in the class have brown eyes.More students in the class have blue eyes thanhazel.O The fewest number of students have gray eyes. I'm in need of assistance here, please answer ASAP! Please actually help me.Thank you! Please help me with these questions on the Skeletal System1. Which is not a function of the skeletal system?A. Movement and protection B. Homeostasis C. Support D. Transport oxygen-rich blood to the body2. Which organism has an exoskeleton?A. A shark B. A human C. A black bear D. A common beetle3. What is main function of the skull?A. To keep out electromagnetic waves B. Allows for movement from one place to another C. Produces brain cells D. Protects the brain from injury4. Tendons and ligaments are used to ___________.A. Exchange gases within the body B. Transport nutrients to cells C. Produce red blood cells D. Attach bones to muscles and bones to bones. The card is a two given that it is black. What is the probability ( the standard deck is 52 cards) pls answer the question and show how or why can someone pls help me with this!! Factor the expression completely. 54 24x Which subject and object pronouns best complete the sentence?____ gave ____ a baseball glove for my birthday.His; IShe; heHe; meThem; her Jasons current age is 1/4 his moms current age. In 16 years, Jasons age will be 1/2 his moms age. The equation below can be used to determine x, Jasons current age. What is Jasons current age, in years 15 POINTS!!In the South Texas Plains, the Rio Grande River flows along the southern border of the state. The Rio Grande shapes the region through the processes of weathering, erosion, and deposition. Which of the following is an example of the river forming a depositional feature? A. As the water's speed decreases along the inside edge of a curve, sediment is laid down to form a point bar. B. As the water flows along the outside edge of a curve, it removes rock and soil from the river bank. C. As the water's speed increases, it scours deep grooves in the muddy river bottom. D. all of these Genesis is moving a box of books into her treehouse. How will the amount of work change if she uses an inclined plane to get to the treehouse?AThe amount of work will decrease when she uses the inclined plane.BThe amount of work will not change when she uses the inclined plane.CThe amount of work will increase when she uses the inclined plane.DThe amount of work will decrease at first and then increase.