4 - 3x = 7 - 4x what is x?

Answer:

x = 3/2 + y/2

Step-by-step explanation:

:)

Answer:

V=π(d/2)^2h

a) V = 3.14 x (15/2)^2 x 5.7

V= 1007.27

I have to go back to class i gave the formula and ex. pls I hope this helped

Answer:

x=10/9

y=10/81

Step-by-step explanation:

Answer:

B) 61° + 24° =

Step-by-step explanation:

Answer:1407.4 rounded to nearest tenth

Step-by-step explanation:

Answer:

79.23

Step-by-step explanation:

Add all up and divide by how many are there to find the mean

Answer:

79.25

Step-by-step explanation:

75 + 72 + 90 + 80 = 317

317 ÷ 4 = 79.25

have a good day! :)

Answer:

Solution given:

width =w

length =3w

now we have

area of rectangle =length ×width=3w×w=3w² is a required expression.

Step-by-step explanation:

hope it is helpful to you

Answer:

answer is 63

Step-by-step explanation:

Answer:the correct answer is D

Step-by-step explanation:

Answer: A

Step-by-step explanation:

If he increases the amount then the less time it will take to pay the loan

Answer: 2,916 inches³

Step-by-step explanation:

The volume of a box is:

= Length * Width * Height

But all of these have to have the same units for it to work. This means that the height of the box will have to be converted to inches :

1 ft is 12 inches so:

= 1¹/₂ * 12

= 3/2 * 12

= 18 inches

Volume is therefore:

= 18 * 9 * 18

= 2,916 inches³

Answer

[tex]300 \geqslant 22.5x + 200[/tex]

Step-by-step explanation:

300 is less than or equal to 22.5x + 200

the budget is 300 so you can't go past that number. the appropriate inequality sign for this would be less than or equal to the following equation: $22.5 x (where x= number of hours) + the fixed fee of $200

don't include $ (or other units of measurements) in equations!!

Answer:

Number line with open circle on 2 and shading to the right

Step-by-step explanation:

this is showing that it has to be greater than two and is going up on the number line

Answer:

1/2

Step-by-step explanation:

reduce the numbers with the greatest common factor 5

1/5×5 1/2

1/2

Answer:

this is the answer hope it helps

Answer:

2

Step-by-step explanation:

this answer is right you can see hear

Answer:

The correct answer is z=2 I did the math sorry if it is not correct!

Answer:

2 2/5 or 12/5

Step-by-step explanation:

Decimal form: 2.4

Improper fraction: 12/5

Mixed Fraction/Simplified: 2 2/5

Answer:

12/5 or 2 2/5

Step-by-step explanation:

Answer:A

Step-by-step explanation:

Answer:

Where is the question

-_-

-_-

-_-

-_-

-_-

-_-

Step-by-step explanation:

Answer:

The system of equations is:

x + y = 42

4x + 2y = 120

And there are 24 chickens.

Step-by-step explanation:

We know that the total number of cows (x) plus the total number of chickens (y) is 42, because Farmer Brown has 42 animals.

We also know that cows (x) have 4 legs and so 4 times the number of cows is the number of cow legs. And chickens (y) have 2 legs, so the number of chickens times two represents the total chicken legs. The sum of 4x + 2y is 120 because there are 120 legs in total.

To solve the system of equations, first solve each equation for y.

In the first equation:

x + y = 42

Subtract x from both sides to isolate y.

y = 42 - x

Second equation:

4x + 2y = 120

Subtract 4x from both sides

2y = 120 - 4x

Divide both sides by 2

y = 60 - 2x

Now that the y's are isolated in both equation, you can put them into 1 equation. Where y = y:

y = 42 - x

y = 60 - 2x

42 - x = 60 - 2x

Add 2x to both sides

42 + x = 60

Subtract 42 from both sides

x = 18

Since x is the number of cows, we know that Farmer Brown has 18 cows.

Now we can substitute the x value into one of the equations:

y = 42 - x

y = 42 - (18)

y = 24

The number of chickens is represented by y, so there are 24 chickens.

Answer:

x= 17

y= 8

QPR= 35

QRP= 60

Step-by-step explanation:

Answer:

[tex]BD = 30[/tex]

Step-by-step explanation:

Given

[tex]AB = 17[/tex]

[tex]AC = 16[/tex]

See attachment

Required

Find BD

If AC = 16, then:

[tex]AO = 16/2[/tex] i.e. half the diagonal AC

[tex]AO = 8[/tex]

The diagonals of a rhombus are perpendicular.

This implies that we can apply Pythagoras theorem.

Using Pythagoras theorem on triangle AOB, we have:

[tex]AB^2 = AO^2 + OB^2[/tex]

[tex]17^2 = 8^2 + OB^2[/tex]

[tex]289 = 64 + OB^2[/tex]

Collect like terms

[tex]OB^2 = 289 - 64[/tex]

[tex]OB^2 = 225[/tex]

Take positive square roots of both sides

[tex]OB = 15[/tex]

To solve for BD, we use:

[tex]OB = \frac{BD}{2}[/tex] --- i.e. half the diagonal BD

[tex]BD = 2 * OB[/tex]

[tex]BD = 2 * 15[/tex]

[tex]BD = 30[/tex]

Answer:

684/1525

Step-by-step explanation:

Given

cosA = 24/25

SinB = 11/61

Sin(A+B) = SinAcosB + CosAsinB

Get SinA

Since

Cos A = adj/hyp

adj = 24

hyp = 25

opp² = 25² - 24²

opp² = 625 - 576

opp² = 49

opp = √49

opp = 7

sinA = opp/hyp

sinA = 7/25

Also if SinB = 11/61

opposite = 11

Hypotenuse = 61

adj² = 61² - 11²

adj² = 3,721 - 121

adj² = 3600

adj = √3600

adj = 60

Cos B = adj/hyp

CosB = 60/61

Sin(A+B) = SinAcosB + CosAsinB

Sin(A+B) = 7/25(60/61) + 24/25(11/61)

Sin(A+B) = 420/1,525 + 264/1,525

Sin(A+B) = 684/1525

Answer:

The equation of the circle is (x+3)^2 + (y-4)^2 = 16.

Step-by-step explanation:

The equation of a circle can be calculated if the center and the radius are known. The equation of a circle is given by  (x-h)² + (y-k)² = r²

Where  (h, k) = center coordinates  and r = radius.