MATHEMATICS MIDDLE SCHOOL

The length of a classroom is 34 feet in yard and frets

Answers

Answer 1

Answer:

There are 3 feet in 1 yard

divide 34/3 = 11 with a remainder of 1

The remainder 1 is the remaining foot ,

Answer : 34 feet is 11 yards and 1 foot

I hope that's help !

Answer 2

Answer: the answer is 1156. I'm positive it is the answer.

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at a restaurant the ratio of kids meals sold to adults meal was 5:4. if there were 20 kids meals sold, what is the combined amount of kids and adults sold meals sold?

Answers

I would set up a proportion:

$(20)/(x)=(5)/(4)$

The proportion basically says, "if there are 5 kids meals for every 4 adult meals, that means 20 kids meals would mean x adult meals." Just cross multiply and then solve for x:

$(20)/(x)=(5)/(4)\n5x=80\nx=16$

That means there are 20 kids meals sold and 16 adult meals sold, so the result is:

36 meals in total.

$5x=20\ \ \ \ | divide\ by\ 5\n\nx=4\n\n5x+4x=9x=9*4=36\n\nCombine\ amount\ is\ 36.$

Describe the rule of this function, and find the missing number8-->15
6-->11
10-->19
4-->?

Answers

-2,+4. If you put them in order, they will be simpler
4->?
6->11
8->15
10->19
so it is 4-->7

If x=4, calculate the value of: x2 +2x

Answers

We simply need to plug in x = 4 into x² + 2x

So plugging in x = 4, we get:

4² + 2(4)

Simplifying it, we get:

16 + 2(4)
16 + 8
24

When x = 4, x² + 2x will equal 24.

If x = 4

x² + 2x = 24

Substitute x by its value

4² + 2(4)
16 + 8 = 24

What is 0.000000028 in scientific notation

Answers

Answer:

The answer is:

$0.000000028=2.8*10^-^8$

Step-by-step explanation:

In order to determine the answer, we have to know about scientific notation.

In general the scientific notation is:

$a*10^b$

where:

a= rational number such that its absolute value has to satisfy:

$1\leq |a|<10$

b= the power of 10 required so that the scientific notation is mathematically equivalent to the original number.

We have to follow the next steps to determine the scientific notation of any number:

Move the decimal point in your number until there is only one non-zero digit to the left of the decimal point. The resulting decimal number is "a".
Count how many places you moved the decimal point. This number is "b".
If you moved the decimal to the left, "b" is positive. If you moved the decimal to the right, "b" is negative. If you did not need to move the decimal, "b" = 0.
Remove trailing 0's only if they were originally to the left of the decimal point.

Finally, the number 0.000000028 written in scientific notation is:

$a=2.8\nb=-8\n\na*10^b=2.8*10^-^8$

$0.000000028=2.8*10^-^8$

2.8 X 10^-8 (........characters space so that I can post this..)

Evaluate 3x - 2y, if x = 5 and y = 3

Answers

3 time 5 equals 15
2 times 3 equals 6
the equation is 15-6

don't forget to make my answer the brainliest also rate it 5 stars also thank me please- Justin

first you put the numbers in place of the letter so it looks like 3(5)-2(3)
now you do 3x times 5 which =15x and do -2y times 3 and you get -6y now it should be this 15-6=9

Two friends share 1/4 gallon of lemonade equally.What fraction of the gallon of lemonade does each friend get?

Answers

1/4 divided by 2
1/4 x 1/2 = 1/8
Happy to Help!

1/8 .All you have to do is divide 1/4 by two and you get 1/8. If you want a decimal it would be 0.125

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