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Answer:14

Step-by-step explanation:

abcd = wxyz

ad/dc=wz/yz

12/3=4

56/yz=4

yz=14

Answer: 14

Step-by-step explanation:

Answer:

4 cm = 40mm

12 cm = 120mm

50 cm = 500mm

88,49 cm = 884,9

Answer:

On blueprint , length of room  is given by  feet and width is given by 10 feet.

Step-by-step explanation:

Given:  On a blueprint, the scale indicates that 6 cm represent 15 feet.

We have to find the value of  the length of a room that is 9 cm long and 4 cm wide on the blueprint.

Since, the scale indicates that 6 cm represent 15 feet

That is 6 cm = 15 feet

1cm =  feet

Thus, the scaling factor for 1 cm is  feet.

Thus, for length of a room  is 9 cm long.

On blueprint , length is given by  feet.

Also, given width of room is 4 cm

On blueprint , width is given by  feet.

Step-by-step explanation:

Answer: so it would be the length is 27.2 feet  and it is 8.88888889 feet wide or 8.9 ft wide and 27.2 feet long when its rounded i do hope i helped you and im so sorry if i didn't 27.2 goes in the box

Step-by-step explanation: d

Here, we need to apply basic mathematical operations and solve the given linear equation. We get the value of a = -4.

Linear equations are expressions that involve variables and constants raised to the power of 1 (i.e., the exponent is 1) and are represented as a straight line when graphed on a coordinate 2D axis. A linear equation can be written in the form ax+ b = c where x is a variable and a,b, and c are constants .

Linear equations can have one variable (univariate) or multiple variables (multivariate). Also, these variables should not be squared, cubed, or raised to the power of any constant other than 1. For example,

1. 2x+5=0 (univariate)

2. 4z+2w=5x(multivariate)

The question given to us is an univariate linear equation where to have to apply basic rules of mathematics. Firstly we need to divide 56 by 14 which gives us 4. The negative sign gives our answer as -4.

to learn more about linear equations here,

https://brainly.com/question/19803308

Answer:

The change in altitude per minute is 63.5 alt/ min

What is unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given:

In 24 minutes = 1524 feet

So, the average Change in altitude per minute

=1524/24

= 63.5 alt/ min

hence, change in altitude per minute is 63.5 alt/ min.

Answer:

*name* is 10 years old now and brother is 15 years now

In 10 years they would be 20 and 25 respectively

Step-by-step explanation:

Let x = *name*'s age now

let y = brother's age now

The first relationship is that the ratio of their ages now is 2:3 or, in fraction form 2/3

That means x/y = 2/3

Cross multiply => 3x = 2y =>

3x - 2y = 0   [1]

10 years from now x would become x + 10 years, y would become y + 10 years and the new ratio is 4/5

So (x + 10)/(y+10 = 4/5

Cross-multiply

5(x + 10) = 4(y + 10)

5x + 50 = 4y + 40

Subtract 4y from both sides

5x + 50 -4y = 40

and subtract 50 from both sides:

5x - 4y = 40 - 50

5x -4y = -10  [2]

Eliminate y terms by multiplying [1] by 2 and subtracting [1] from that

[1] x 2

=> 2(3x - 2y) = 2 x 0

=> 6x - 4y = 0  [3]

[3] - [2]

6x - 4y - (5x -4y) = 0 - (-10)

6x - 4y -5x + 4y = 10

x = 10

Using equation [1] we get

x/y = 2/3

=> 10/y = 2/3

10 x 3/2 = y

5 x 3 = y

y = 15

So their ages are 10 and 15 now.

In 10 years they would be 20 and 25

If the ratios change we would have a different set of equations to solve for

For example if the current ratio is 1/3

Then we would get x/y = 1/3

or 3x - y = 0  [4]

and if 10 years from now the ratio is 3/5 then

(x + 10)/(y + 10) = 3/5

=> 5(x+10) = 3(y + 10)

=> 5x + 50 = 3y + 30

=> 5x - 3y = -20  [5]

And we would solve these equations to get x and y in a similar mannter

FYI the answers would be
x = 5, y = 15

Answer:

b

c

f

Step-by-step explanation:

-2 is greater than -2 1/2 not less than

1 is greater than -.5 but -1 can't be greater than -.5

-3.4 is greater than -4 but 3.4 can't be less than -4

Answer:

A

Step-by-step explanation:

Answer:

I'd say the one on the right, or the orange team.

Step-by-step explanation:

Their numbers, excluding the last set, are all far higher than the other's.

Answer:

-3/4

Step-by-step explanation:

Answer:

(0,0) and (4,-1)

Step-by-step explanation:

A line is uniquely defined by two points.

[tex]x=0 \implies y=0 \\ \\ x=4 \implies y=-1[/tex]

So, draw the line through (0,0) and (4,-1).

Answer:

To find the mass of

1

mole of  look up the atomic mass of each element and multiply it by the number of atoms contained in each element in the molecule.

mass of

1

mole of

=

Step-by-step explanation:

The options 1,2 and 5 are the correct answer.

The given equation is 1.23/[tex]10^1[/tex]=0.123.

The division is one of the basic arithmetic operations in math in which a larger number is broken down into smaller groups having the same number of items.

Now,

1) 1.23/[tex]10^1[/tex]=0.123

Here LHS=RHS

2) 123/100=1.23

Here LHS=RHS

3) 12.3/[tex]10^0[/tex]=1.23

⇒ 12.3/1=12.3

So, LHS≠RHS

4) 0.123/10=1.23

⇒ 0.123/10 = 0.0123

So, LHS≠RHS

5) 1230/10³=1.23

⇒ 1230/1000

= 1.23

Here LHS=RHS

Therefore, the options 1,2 and 5 are the correct answer.

To learn more about the division visit:

https://brainly.com/question/1575906.

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"Your question is incomplete, probably the complete question/missing part is:"

Use mental math to decide which equations are true. Drag the true equations into the box.

1.23/[tex]10^1[/tex]=0.123

123/100=1.23

12.3/[tex]10^0[/tex]=1.23

0.123/10=1.23

1230/10³=1.23

Answer: A!

Step-by-step explanation: If you dig down, you're going at a negative level. If you were to go above, then it would be positive.

Answer: B or D are the answer/answers

Answer: b

Step-by-step explanation:

Answer:

15.

Step-by-step explanation:

If explanation is needed please notify me!

I think it is 2 miles

Answer: it helps by making the question 10 times easier

Step-by-step explanation: because 4 and 6 both have the variable X they are like terms and can be added to each other unlike 30 it doesn’t have a variable meaning 4x or 6x cannot combine with 30 because it doesn’t have the variable X. Moving on 4x+6x is 10x as you add the number but X stays the same and so 10x=30 so you divided both sides by 10 because inverse operations and you get x=3 then after you import that into the question 4(3)+6(3)=30 which is the same as 12+18=30 which is true 30=30

Answer:

  C.  |-3.75|

Step-by-step explanation:

You want to compare the given numbers to |-2.4|.

The absolute value of a number is its distance from zero on the number line. It is always positive.

Here, we're comparing the answer choices to +2.4, and we want to find the one that is greater.

The quantity |-3.75| is greater than |-2.4|.

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Answer: post image of the math Sheri walked 15/16 of a mile to school and then 7/8 of a mile to the library. Estimate how far Sheri walked in total.

Step-by-step explanation:

1.8125 miles

just added 15/16 + 7/8

1.8125 miles

15/16 + 7/8

Answer:

-2/3

Step-by-step explanation:

You are looking the change in y over  the change in x.

for y, if you go from -5 to -7, how much did it change?  -2

-7 -(-5) = -7 + 5 = -2

Now look the the x's.  If you from 6 to 9 how much did you change?

3

9-6 = 3

-2/3

Answer:

-2/3

Step-by-step explanation:

A slope is [tex]\frac{Change in Y}{Change in X}[/tex] and we can see that when the x value increases by 3, the y value decreases by 2. So if we plug that in, we get -2 for the Change in Y and +3 for the Change in X. Which results in the slope being [tex]-\frac{2}{3}[/tex]

Answer: The ratio is 18:3

Step-by-step explanation:

Answer:  6 to 1

Step-by-step explanation:

A ratio refers to a fraction. In this case the question asks how many players to coaches there are.

The word "to" means that is where the fraction bar goes.

Players/Coaches

There are 18 players and 3 coaches.

18/3

18 can be divided by 3, 6 times so the fraction can be simplified to

6/1 meaning there are 6 players for every coach.

Answer:

8.9 lb

Step-by-step explanation:

I divided 47.17 by 5.3 47.17÷5.3= 8.9then to check my answer I multiplied 8.9 by 5.3 and got 47.17hope this helps

Answer:

Jiri's age = 27

Step-by-step explanation:

Let's use x for Jiri's age.

Jiri's age = x

And because Pamela is 8 years older:

Pamela's age = x + 8

Since their ages added up equal 62, the equation will be:

x + x + 8 = 62

2x + 8 = 62

2x + 8 - 8 = 62 - 8

2x = 54

2x/2 = 54/2

x = 27

And because Jiri's age is x, Jiri's age will therefore be 27.

Hope this helped!

Answer:

Jiri is 27 years old.

Step-by-step explanation:

Step 1: Declare variables

Since Pamela is 8 years older than Jiri. Then, Pamela’s age is [tex]\displaystyle{8+x}[/tex] years old.

Step 2: Form an equation

The sum of their ages together equals to 62. Therefore, we can express in mathematics/equation of [tex]\displaystyle{x+8+x=62}[/tex] (sum of Jiri’s age and Pamela’s).

Step 3: Solve for x-term - add like terms (x-term)

[tex]\displaystyle{2x+8=62}[/tex]

Step 4: Subtract both sides by 8

[tex]\displaystyle{2x+8-8=62-8}\\\\\displaystyle{2x=54}[/tex]

Step 5: Divide both sides by 2

[tex]\displaystyle{\dfrac{2x}{2}=\dfrac{54}{2}}\\\\\displaystyle{x=27}[/tex]

Since Jiri’s age is defined as [tex]x[/tex] years old. Therefore, Jiri’s age is 27 years old.

Please let me know if you have any questions!

Answer:

y=4x

Step-by-step explanation:

if you look at the line you'll see it takes 4 x's to = 1 y, every time you go right 1 you go up 4

Answer:

The slope is 4.

Step-by-step explanation:

Step 1:

Slope can also be found by using the formula, Y2-Y1/X2-X1

In this case, our first point is the origin, so x would be 0 and y would be 0. On the second point, our x is -1, and our y is -4.

So, we can make the solution, -4-0/-1-0.

You can simplify this into, -4/-1, and then into 4.

Therefore, the slope is 4.

Step 2:

M is our slope, so in our y=mx equation our m = 4.

If you substitute in the m, you get y=4x.

Answer:

y=4x.

Hope this helped!

Answer:

8/15 or .53

Step-by-step explanation:

you have to times the 6 to both sides to get ride of it then u are left with 15s=8 then u divide 15 to 8

Answer:

8/15 or .53

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

3/7 = m/35

7 x ? = 35

7 x 5 = 35

so 3 x 5 = 15