. Is 10% of 10% of 100 the same as 20% of 100?

Answers

Answer 1

Answer: No. 20% of 100 is 20.

10% of 10% of 100 is 1.

Answer 2

Answer: the equations are:
.1 × .1 × 100 = 1

and

.2 × 100 = 20

So these are NOT the same

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Solve the following system of equations.2x + 5y = 19x - 2y = - 4
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There were 75 pebbles in boxes a, b and c. After moving 28 pebbles from a to b, 24 pebbles from b to c, and 19 pebbles from c to a, there was an equal number of pebbles in each box. How many pebbles were in box a in the beginning.

Answers

Box A started out with 34 pebbles box B started out with 21 pebbles and box C started out with 20 pebbles

Answer:

Step-by-step explanation:

How to solve for x on a quadratic function

Answers

To find the x-intercepts of any equation, substitute 0 in for y and solve for x. So, we have 0 = 3x2+ x + 1. Now, use the quadratic equation to solve for x, wich a = 3, b = 1, and c = 1: So, now we can find the value of the x-intercepts and not have to estimate!

PLEASE HELP!!!!The coordinates below represent two linear equations. How many solutions does this system of equations have?

Line 1
x y
–4 8
4 6

Line 2
x y
–1 1
3 5

A.

0

B.

exactly 1

C.

exactly 2

D.

infinitely many

Answers

This may be one of those questions that could take
more paper to ask than to answer.

Line-1 goes through (-4, 8) and (4,6) .

Its slope is (difference in 'y') / (difference in 'x')

Dif in 'y' = (6 - 8) = 2
Dif in 'x' = (4 - -4) = 8
Slope of Line-1 = 2/8 or 1/4

Line-2 goes through (-1, 1) and (3, 5)

Its slope is (difference in 'y') / (difference in 'x')

Dif in 'y' = (5 - 1) = 4
Dif in 'x' = (3 - -1) = 4
Slope of Line-2 = 4/4 = 1

Slope of Line-1 = 1/4
Slope of Line-2 = 4

The slopes of the lines are different.
They can't be parallel, and they can't be the same line.
They must intersect in one point, and only one point.

That means the pair of equations has exactly one (1) solution.

the number of girls and boys in math class totals 27. how many girls are there if the of girls is 3 more than twice the number boys?

Answers

Answer: 15 girls

Step-by-step explanation:

27 - 3 = 24

24/2 = 12

12 boys

12 + 3 = 15

15 girls

15+ 12 = 27

Answer: 15

Step-by-step explanation: Personally, I would try finding the number of boys first and then subtract the number of total students by the number of boys. To find the boys, you need to subtract three from 27 since those 3 are girls which leaves you with 24. It says there is half the number of boys than girls when you subtract 3 so 24 divided by 2 is 12. The number of boys is 12 so now all you have left to do is subtract 27-12 to find the number of girls, which is 15. I hope this helped you and sorry if it’s really long :)

How do I solve this? Like what are the steps to solving this question

Answers

Answer:

1 = 35

2 = 55

Step-by-step explanation:

so we know that between 1 and 2 it is 90 degrees we also know that angle 1 and the angel to the left of it make 180 degrees so do

180 - 90 = 90

this means the angle next to line 1 is also 90 degrees

then we would see that the 55 degrees the 90 degrees and angle 1 make 180 degrees so do

55 + 90 = 145

180 - 145 = 35 degrees so angle 1 is 35 degrees

then we would find angle 2

90 - 35 = 55 degrees so angle 2 = 55

hope this helps : )

Answer:

see explanation

Step-by-step explanation:

(6)

55° and ∠2 are vertical angles and congruent, hence

∠2 = 55°

∠1 and ∠2 are complementary angles ( They form a right angle )

∠1 = 90° - 55° = 35°

(7)

132° and ∠2 are alternate angles and congruent, hence

∠2 = 132°

∠1 and ∠2 are supplementary ( straight angle )

∠1 = 180° - 132° = 48°

mary has 12 marbles. 3/12 marbles. are yellow and 2/12 of the marbles are blue. The rest of the marbles are green. how many marbles are green??explain how you know.

Answers

This simply means that 3 out of the 12 are yellow and 2 out of 12 are blue. So add the blue and yellow together to get 5, then subtract 5 from 12 and get 7. There is 7 green marbles

3+2=5 12-5=7the answer is 7 are green

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