Mathematics College

Victor has some model planes. Last weekend, Victor and his grandfather built four more model planes to add to his collection. Now Victor has a total of 42 model planes.

Part A: In the first box, enter an equation to represent the number of planes, x, Victor originally had.

Part B: In the second box, enter the number of planes represented by x in this situation.

Answers

Answer 1

Answer:

x = 42 - 4

x = 38

Step-by-step explanation:

Given that :

Initial number of plane models = x

Number of additional models built = 4

Total number of planes = 42

Total = initial amount + additional amount

42 = x + 4

Make x the subject

42 - 4 = x + 4 - 4

x = 42 - 4

X + 4 = 42

X = 42 - 4

X = 38

Related Questions

What does -8/9 × -6/7 really equal

Answers

Answer:

16/21

Step-by-step explanation:

It equals 16/21. If you actually multiply it, you should come out with 48/63. Simplify it to get 16/21

I need help on this question

Answers

Answer:120 DEEGREES

Step-by-step explanation:

craig has a coin and a number cube.The number cube is labeled 1-6.He flips the coin once and rolls the number cube once.What is the probability that the coin lands heads up and the number cube lands on an odd number

Answers

Answer:

3/12

Step-by-step explanation:

Mr. Norris is paid a 3% commission on each boat he sells. What is his commission on a boat that he sells for $145,000?

Answers

Answer:

3% of 145000

Step-by-step explanation:

calculator

What is 5^3 written as a product of the same factor?

Answers

Answer:

Step-by-step explanation:

5³ = 5×5×5


6. Over the long weekend, Mr. Kearns spends of his time working, of his
time sleeping, and of the remaining time exercising. The rest is for
eating. If the amount of time he eats is 6 hours, what is Mr. Kearns's total
time?

Answers

Answer:

the total time is 18 hours remaining

Identify the inequality that represents the following problem. One less than twice a number is no less than five. What is the solution set? 01- 2025 0 20-125 020-15 01-2015​

Answers

Answer:

2x-1 greater than or equal to 5

A city worker is painting a stripe down the center of Main Street. Main Street is 8/10 mile long. the worker painted 4/10 mile of the street. explain how to find what part of a mile is left to paint..

Answers

8/10-the length of the street minus 4/10-the completed amount equals 4/10 of a mile is the remaining. Since the denominators are the just sub the numerator.

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Answers

Answer:

48 units squared

Step-by-step explanation:

brainliest??????????????????????????????

Answers

Step-by-step explanation:

Given

f(x) = 3x² + 9

g(x) = 5x

(fog)x = f ( 5x)

= 3 ( 5x) ² + 9

= 3 * 25x² + 9

= 75x² + 9

Hope it will help :)

a line passes through the points (2,2) and (5,8). What is its equation in slope-intercept form?

Answers

Answer:

y=2x+6

Step-by-step explanation:

Slope of line is 2

Plug slope and first set of coords into point-slope intercept form

What is the volume, in cubic inches, of one cube with an edge length of 1/3 inch

Answers

Answer:

1/27 cubic in.

Step-by-step explanation:

1/3*1/3*1/3= 1/27

The volume of the cube if, its edge length is 1/3 inch is 1 / 27 inches³.

What is volume?

The capacity occupied by a three-dimensional solid shape is known as volume. It is difficult to visualize in any shape, yet it may be compared among shapes. For instance, a compass box has a larger volume than an eraser placed inside of it.

Given:

The length of the edge = 1 / 3 inches,

Calculate the volume of the cube as shown below,

The volume of the cube = The length of the edge × The length of the edge × The length of the edge

The volume of the cube = 1 / 3 × 1 / 3 × 1 / 3

The volume of the cube = 1 / 27

Thus, the volume of the cube is 1 / 27 inches³.

To know more about volume:

brainly.com/question/13807002

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A book sold 34,200 copies in its first month of release. Suppose this represents 8.8% of the number of copies sold to date. How many copies have been sold to date?

Answers

388,636.36 copies have been sold

A subway car travels at a rate of 32 meters per second. How far does it travel in 16 seconds? Use d= r x t

Answers

Answer:

I think 512 feet in 16 seconds.

In Sahara Desert one day it was 130°F. In the Gobi Desert a temperature of -40°F was recorded. What is the difference between these two temperatures?

Answers

Answer: 170 degree difference

Answer:

The difference between two numbers canbbe obtained substracting.

The diffence between 130 °F and -40 °F would be the same as substracting both numebrs (we should put an absolute value as the difference is positive).

130 - (-40) = 130 + 40 = 170 ° F

So the difference is of 179 °F

The Graduate Management Admission Test (GMAT) is a standardized exam used by many universities as part of the assessment for admission to graduate study in business. The average GMAT score is (Magoosh website, January 5, 2015). Assume that GMAT scores are bell-shaped with a standard deviation of . a. What percentage of GMAT scores are or higher

Answers

Answer:

The answer is "16%".

Step-by-step explanation:

Its empirical rule suggests which 68% of the very first standard deviation, 95% of the very first 2 standard deviations or 99.7% of the very first three standard deviations of the variance average fall.

[tex]z =647 \\\\z=\frac{(647-547)}{100}= \frac{100}{100}=1[/tex]

The empirical rule indicates the first standard deviation around 68 percent.

So,

[tex]=\frac{(100-68)}{2} \\\\=\frac{32}{2} \\\\= 16 \% \ drop \ 647 \ and \ above[/tex]

12x13=? please help I only know up too 12 not. 13 helppppp

Answers

Answer:

156

Step-by-step explanation:

hopefully this is the answer you're looking for

Answer:

156

Step-by-step explanation:

the answer of the product of 12 and 13 is 156

Could someone help with this math question brainlest and points

Answers

Answer:

D. 40

Step-by-step explanation:

12/30 = 16/x

or 12/16 = 30/x

Answer:

wouldn't it be 40? I could be wrong

During a film festival, the first film
ticket is priced at $16, and each
additional ticket is $11. If Rico spends
$71, then how many film tickets did
he purchase?

Answers

Answer:

3

Step-by-step explanation:

deccweljvrl;ej e

Oatmeal is made by mixing 15 cups of hot water to 6 cups of oats.

Answers

9514 1404 393

Answer:

2/5 cups oats per cup water2.5 cups water per cup oats

Step-by-step explanation:

The denominator of the fraction is the unit you want 1 of.

  (6 cups oats)/(15 cups water) = (6/15) cups oats/(1 cup water)

  = (2/5 cups oats)/(1 cup water)

1 cup of water would need 2/5 cups of oats.

__

Obviously, the other ratio is the reciprocal of this.

  (1 cup water)/(2/5 cups oats) = (5/2 cups water)/(1 cup oats)

1 cup of oats would need 2.5 cups of water

Classify the system of equations.
2x = -2- y
5+ y = -2x + 6
Click on the correct answer.
coincident
intersecting
parallel

Answers

the correct answer is parallel

9x + 8y = 10
y = -4x + 7

Answers

Answer:

X=2

Step-by-step explanation:

9x+8(-4x+7)=10

9x+(-32x)+56=10

-23x=10-56

-23x=-46

X=-46/-23

so X=2

Using related equations, what is the solution of this equation ? List the related equations
7w = 92
Don’t use me for points

Answers

Step-by-step explanation:

Divide both sides of the equation by the same term

7w = 92

[tex]\frac{7w}{7} =\frac{97}{7}[/tex]

Simplify

Cancel terms that are in both the numerator and denominator

[tex]w =\frac{92}{7}[/tex]

Answer:

[tex]w= \frac{92}{7}[/tex]

Anna bought 27 bananas. She used some for a recipe and had 17 left. Select all the
equations that represent this situation.

Answers

Answer:

Step-by-step explanation:

27-x=17

Answer:

um how can we help you when there's no equations...

Step-by-step explanation:

Write the equation in Point-Slope Form of a line that has a slope of 3/4 and passes through point (-4, -12).

Answers

Answer:

The equation in Point-slope form of a line that has a slope of 3/4 and passes through the point (-4, -12) is:

[tex]y+12=\frac{3}{4}\left(x+4\right)[/tex]    

The graph of the equation line is also attached below.    

Step-by-step explanation:

Given

Slope m = 3/4Point (-4, -12)

To determine

We have to determine the equation in Point-Slope Form.

We know that the Point-slope form of a line equation is defined as

[tex]y-y_1=m\left(x-x_1\right)[/tex]

where

[tex]m[/tex] is the slope of the line[tex]\left(x_1,\:\:y_1\right)[/tex] is the point

In our case:

Slope m = 3/4(x₁, y₁) = (-4, -12)

substituting the values m = 3/4 and the point (x₁, y₁) = (-4, -12) in the point-slope form of the line equation

[tex]y-y_1=m\left(x-x_1\right)[/tex]

[tex]y-\left(-12\right)=\frac{3}{4}\left(x-\left(-4\right)\right)[/tex]

Apply rule:  [tex]-\left(-a\right)=a[/tex]

[tex]y+12=\frac{3}{4}\left(x+4\right)[/tex]    

Therefore, the equation in Point-slope form of a line that has a slope of 3/4 and passes through the point (-4, -12) is:

[tex]y+12=\frac{3}{4}\left(x+4\right)[/tex]    

The graph of the equation line is also attached below.    

Find the solution to the system. Write your solution as an ordered pair (x,y)
with no spaces, no solution, or infinitely many. x-3y=7 and 3x-9y=21*

Answers

Answer:

Infinitely many

Step-by-step explanation:

If we multiply the equation x-3y=7 by 3, we get 3x-9y=21, which is also the second equation. That means the two lines are on top of each other, meaning infinite many solutions.

Abu solved 231 multiplication problems. Later, he also solved 131 divison problems. How many more multiplication problems than divison problems did Abu solve?

Answers

Answer:

Easy! Abu solved 100 multiplication problems more than division problems

Step-by-step explanation: Just take 231 - 131 = 100 :D

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Answers

Answer:

1a. x= y+1/2  1b. y=2x-1  

2a. x= -4y-8/3  2b. y= -3x/4 -2

Step-by-step explanation:

Type in math problem solver then click the first one and then you can get all your answers there

5r+r= what dose this equal

Answers

Answer:

Step-by-step explanation:

5

Which of these strategies will you use to eliminate a variable in the system
Explain your answer:
-x+6y=8
7x-y=-2
a. Multiply the bottom equation by 6, then subtract the bottom equation from the
top equation.
b. Add the equations.
c. Multiply the top equation by 7, then add the equations.

Answers

Answer:

Step-by-step explanation:h

answer C

to eliminate x, multiply the top equation by 7 then add the equations

it is not A because if the bottom equation is multiplied by 6, the y’s will not cancel out if the bottom is subtracted from the top (since 6x - -6x is 12 not 0)

it is not B because adding the equations will not eliminate either variable

doing option C eliminates x since -7x + 7x is 0
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