how to do inverses marking brainlists

Answer:

C = 580 children.

A = 420 adult.

Step-by-step explanation:

Let the number of children be C.

Let the number of adult be A.

Translating the word problem into an algebraic equation, we have;

A + C = 1000  .......equation 1

10A + 5C = 7100  .......equation 2

A = 1000 - C .......equation 3

Substituting eqn 3 into eqn 2, we have;

10(1000 - C) + 5C = 7100

10000 - 10C + 5C = 7100

10000 - 7100 = 10C - 5C

2900 = 5C

C = 2900/5

C = 580 children.

Now, to find the value of A.

From equation 3;

A = 1000 - C

A = 1000 - 580

A = 420 adult.

Answer:

Geometric mean is 26.92582

Answer:

1/ 64

Step-by-step explanation:

1 / 4³ = 1/ 64

hope it helps!

Answer:

$75

Step-by-step explanation:

1/4=25

100-25= 75

Step-by-step explanation:

(8×2,8×3)

(16, 24)

............

Answer:

So the scale factor would be the length of the new rectangle divided by the length of the corresponding side for the original rectangle. So the scale factor is 1/2. Note: If you're going from a bigger shape to a smaller one, you know that the scale factor must be less than 1.

Step-by-step explanation:

=======================================================

Explanation:

[tex]0.\overline{5}[/tex] means that the 5's go on forever because of that horizontal bar over top. So we can write it as [tex]0.\overline{5} = 0.55555\ldots[/tex]

The three dots indicate it goes on forever following that pattern.

Let

x = 0.55555....

Multiply both sides by 10 to move the decimal point 1 spot to the right

10x = 5.55555....

Notice how both x and 10x involve a decimal number such that we have a string of 5's going on forever. If we subtract the two equations, then 10x-x becomes 9x, while the (5.55555....) - (0.55555....) simplifies to 5. The decimal portions cancel out when we subtract since they line up perfectly. We're effectively subtracting 5-0 when we cross off the decimal portions.

After those subtractions, we're left with 9x = 5 which solves to x = 5/9 when you divide both sides by 9.

Use of a calculator should show that 5/9 = 0.555555.... to help confirm the answer. Your calculator may show the last digit to be a 6 instead of a 5, but this is due to rounding. Ideally you should have a string of infinitely many 5's, but the calculator can only how so many digits.

Answer:

x=2 and y=−6

sorry this is pretty long, I did not know if you needed the steps or not

Step-by-step explanation:

−2y−10=x;−10x−y=−14

Solve−2y−10=x for x

−2y−10=x

−2y−10+−x=x+−x

−x−2y−10=0

−x−2y−10+2y=0+2y

−x−10=2y

−x−10+10=2y+10

−x=2y+10

-x/-1=2y+10/-1

x=−2y−10

Substitute−2y−10 for x in−10x−y=−14

−10x−y=−14

−10(−2y−10)−y=−14

19y+100=−14

19y+100+−100=−14+−100

19y=−114

19y/19=-114/19

y=-6

Substitute−6 for y in x=−2y−10

x=−2y−10

x=(−2)(−6)−10

x= 2

x=2 and y=−6

Answer:

B

Step-by-step explanation:

X = 29 by the alternate interior angles

y = 49 by the triangle sum theorem

z = 102 because the opposite sides of a parallelogram are congruent

Answer:

Answer:

Yes this is true

Step-by-step explanation:

when ur moving right of the decimal point it goes tenths hundredths and thousandths so yes this is true PLEASE MARK BRAINLIEST ;C

Answer:

-2/3 is the right answer

Answer:

Step-by-step explanation:

y= mx+b is the general equation where m is the slope

y= 1/2 x +6 has the slope 1/2

perpendicular lines have the slope negative reciprocal

so the slope of the ⊥ line is -2

y = -x +b , yet for point (4, 1) the x=4 and y =1

1= -4 +b so b= 5

the equation of the ⊥ line is y= -2x+5

Answer:

D) Yes, Because every x-value corresponds to exactly one y-value

Step-by-step explanation:

I did this, got it correct

Answer:

Red spanish roofs, verdant garden, suburban, polished, and quaint.

That good enough, haha?

Answer:

4 red beads

Step-by-step explanation:

Answer:

times 2

Step-by-step explanation:

2×2=4

-7×2=-14

which is why the scale factor is times 2

Answer:

x = 5, supplementary

Step-by-step explanation:

6x + 13 + 14x - 33 = 180

20x - 20 = 80

20x = 100

x = 5

Answer:

2n+10

Step-by-step explanation:

you just distribute the -2 and you get -14+2n+4 and then add and you'll get 2n+10

if you are solving for the variable n then you would want your equation like this 2n+10=0

next you would put the 10 on the other side of the equation and have 2n=-10

finally you would divide by 2 and get n=-5

Answer:

50

Step-by-step explanation:

5* ( 7+3)

5* 10

50.

.so the answer is 50

Answer:

50

Step-by-step explanation:

5 x (h + 3) = 5 x (7 + 3)

= 5 x (10)

= 50

Answer:

-12

Step-by-step explanation:

6+-9 =-12

FIRST STEP:

2x + 3x + 5x = 180

10x = 180

x = 18

SECOND STEP:

2*18 = 36

3*18 = 54

5*18 = 90

36:54:90

PLZ MARK AS BRAINLIEST

Answer:

let ratio be 2x,3xand 5x

Step-by-step explanation:

2x+3x+5x=180(sum of interior angle of triangle)

10x=180

x=180/10=18

:.required angle

2x=2×18=36

3x=3×18=54

5x=5×18=90

Answer:

G is correct

H is correct

M is correct

K is 131

Step-by-step explanation:

Angles in a straight line add up to 180 degrees

Answer:

g: 43

h: 137

m: 49

K: 131

Step-by-step explanation:

i got it right

Answer:

first one

Step-by-step explanation:

because half of the figure

Answer:

The first one

Step-by-step explanation:

Answer:

14 servings

Step-by-step explanation:

Step 1

We convert 7 pounds to ounces

0.0625 pound = 1 ounce

7 pounds = x

Cross Multiply

0.0625x = 7

x = 7/0.0625

x = 112 ounces

Step 2

The number of 8 ounce servings she can give to her dog is calculated as:

8 ounces = 1 serving

112 ounces = x servings

Cross Multiply

8 × x = 112 × 1

8x = 112

x = 112/8

x = 14 servings

Therefore, the number of 8 ounce servings she can feed her dog is 14

Answer:

−6b+29

Step-by-step explanation:

Let's simplify step-by-step.

8−3(2b−7)

Distribute:

=8+(−3)(2b)+(−3)(−7)

=8+−6b+21

Combine Like Terms:

=8+−6b+21

=(−6b)+(8+21)

=−6b+29

have a great day <3

Answer: -6b + 29

Step-by-step explanation:

8 -6b + 21

-6b + 29

Answer:

The correct answer is 4

Step-by-step explanation:

hope this helps

Answer:

I'm pretty sure its 14/5

Answer:

d = 3h - 6

Step-by-step explanation: