7) On a farm, there are some cows and birds.
There are 35 total heads and 110 total
legs. How many cows and how many
birds are there?

9514 1404 393

Answer:

  z² -7

Step-by-step explanation:

A square is indicated using an exponent of 2. "Decreased by 7" means 7 is subtracted.

  z squared, decreased by 7 is ...

  z² - 7

Answer:

144

Step-by-step explanation:

You should pick B.

Answer:

x=6,y=13

Step-by-step explanation:

Eliminate the equal sides of each equation and combine.

x+7=2x+1

Solve x+7=2x+1

x=6

Evaluate yy when x=6

y=13

The solution to the system is the complete set of ordered pairs that are valid solutions.

(6,13)

The result can be shown in multiple forms.

Point Form:

(6,13)

Equation Form:

x=6,y=13

Step-by-step explanation:

1)

Prime factorization of 36 is: 2 x 2 x 3 x 3.

Prime factorization of 196 is: 2 x 2 x 7 x 7.

Prime factorization of 361 is: 19 x 19.

2)

Greatest Common Factor of 126 and 144 is: 18.

Least Common Multiple of 28, 42, and 63 is: 252.

3)

2/3+3/4=17/12.

2/3-3/4= -1/12.

3 2/3 x 1 3/4 = 6 5/12.

Answer:

in about 27 days

Step-by-step explanation:

i assumed 30 days per month when i set up this equation:

w = words learned daily

100 + 4w = 180 + 30/30w

100 + 4w = 180 + w

3w = 80

w = 26 2/3

Answer:

3.86 weeks/three weeks

Step-by-step explanation:

x time it takes for thier vocab to be the same in days

so the boy lerns 360 words of spanish in a year

or 360/365 words of spanish per day which is 72/73 words per day

so,

100+4x=180+72x/73

80=288x/73-72x/73

80=216x/73

80*73=5,840

5,840=216x

27.037 days=x

so now we have to divide by seven to get weeks so that is 3.86 weeks.

so some time in week three

Answer:

Step-by-step explanation:

2x + 15 + x + 90 = 180

3x + 105 = 180

3x = 75

x = 25

2(25) + 15 = 50 + 15 = 65 for m<D

In ∆ABC,

As, we have :

So, By angle sum property of triangle :

∠A + ∠B + ∠C = 180°

[tex] \tt : \implies 60\degree + 60\degree + \angle C = 180\degree[/tex]

[tex] \tt : \implies 120\degree + \angle C = 180\degree[/tex]

[tex] \tt : \implies \angle C = 180\degree - 120\degree[/tex]

[tex] \tt : \implies \angle C = 60\degree[/tex]

Now, we have :

As, all angles are of same length, therefore it is a equilateral triangle.

We know that sides of equilateral triangle are equal.

[tex] \tt : \implies AB = BC = AC[/tex]

Now, we have BC = 12 units.

Hence, all sides are of 12 units.

Now, we know that area of equilateral triangle is :

[tex] \large \underline{\boxed{\bf{Area_{(equilateral \: triangle)} = \dfrac{\sqrt{3}}{4} side^{2}}}}[/tex]

[tex] \tt : \implies Area = \dfrac{\sqrt{3}}{4} \times (12 \: units)^{2}[/tex]

[tex] \tt : \implies Area = \dfrac{\sqrt{3}}{\cancel{4}} \times \cancel{144} \: units^{2}[/tex]

[tex] \tt : \implies Area = \sqrt{3} \times 36 \: units^{2}[/tex]

[tex] \tt : \implies Area = 36\sqrt{3} units^{2}[/tex]

So, Area of given triangle is 36√3 units².

Answer: Triangular Prism I think

Step-by-step explanation:

Answer: 9/2

Step-by-step explanation:

21=2(6) + 2(?)

21=12 + 2(?)

9=2(?)

(9/2)=?

Answer:

$412.50

Step-by-step explanation:

15% of 2750 = 0.15 × 2750 = 412.5

Answer:

75.8°

Step-by-step explanation:

x + x + 28.4° = 180°{ being linear pair }

2x = 180° - 28.4°

2x = 151.6°

x = 75. 8°

Hope it will help :)

Answer:

3x+45

/3x /3x

x= 15

Answer:

True

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

There are two sets of magnets to move the maglev train one set pushes the train off the track and the other to move the train foward.

Answer:

distributive I'm pretty sure!

Step-by-step explanation:

i hope this helps have a great day:)

Answer:

Step-by-step explanation:

Answer:

The correct option is c: the area of the 6-inch pizza is 1/4 the area of the 12-inch pizza.

Step-by-step explanation:

The area (A) of each pizza is given by:

[tex] A = \pi r^{2} [/tex]

Where:

r: is the radius

For the 12-inch pizza we have:

[tex] A_{12} = \pi (\frac{12 inch}{2})^{2} = 113.1 inch [/tex]

And for the 6-inch pizza we have:

[tex] A_{6} = \pi (\frac{6 inch}{2})^{2} = 28.3 inch [/tex]

The ratio between A₆ and A₁₂ is:

[tex] \frac{A_{6}}{A_{12}} = \frac{28.3 inch}{113.1 inch} = 0.25 = \frac{1}{4} [/tex]

Hence:

[tex] A_{6} = \frac{A_{12}}{4} [/tex]

Therefore, the correct option is c: the area of the 6-inch pizza is 1/4 the area of the 12-inch pizza.

I hope it helps you!            

The area of the 6-inch pizza is 1/4 the area of the 12-inch pizza

Diameter of pizza A = 12 inch

Diameter of pizza B = 6 inch

Ration of Area of Pizza A to B = [πr1²] / [πr2²]

Ration of Area of Pizza A to B = [(12/2)²] / [(6/2)²]

Ration of Area of Pizza A to B = [(6)²] / [(3)²]

Ration of Area of Pizza A to B = 36 / 9

Ration of Area of Pizza A to B = 4:1

So,

Option "C" is the correct answer of the following question.

https://brainly.com/question/21454181?referrer=searchResults

Answer: 20 children

Step-by-step explanation:

Given

Year 4: 11 cannot swim

Year 5: 21 can swim

Year 6: 18 of 30 can swim

Total 96 children

Total 37 cannot swim

First Step: find the number of people from year 5 who cannot swim

Second Step: find the number of children in year 5

Third Step: find the number of children in year 4 who can swim

Hope this helps!! :)

Please let me know if you have any questions

Answer:

Step-by-step explanation:

I hope this helps!

Answer:

y = - [tex]\frac{1}{4}[/tex] x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c

Given

2x + 8y = 24 ( subtract 2x from both sides )

8y = - 2x + 24 ( divide all terms by 8 )

y = - [tex]\frac{1}{4}[/tex] x + 3 ← in slope- intercept form

Answer:

i think 37237

Step-by-step explanation:

Answer: Geometric

Step-by-step explanation:

Khan Academy

3 = X

10= Y

Step-by-step explanation:

10=3 + 7

10=2 ×3+4

10=3×3+1

10=4×3-2

Answer:

d

Step-by-step explanation:

Radius = 4

area:

4x4x3.14x12=602.88

Answer:

so which one would beat up who?

Step-by-step explanation:

Answer:

killua is strongest out of all of them so i think hell wjin

Step-by-step explanation:

Answer:

-2,1,2,0

Step-by-step explanation:

0 your choice to right,still right it to be safe, domain is all x values

Answer:

It would be...

Step-by-step explanation:

Similar By: 22.5 and 27

ABCD: G AND H AND F

I am not sure but I try hard

Answer:

diagram???

where is it

Step-by-step explanation: