10 is 5% of what number

Answers

Answer 1

Answer: We can use proportion to get the result
10 ----------- 5%
x ------------- 100%
Crossmultiply proportion

5*x=10*100
5x=1000 /:5 divide both sides by 5
x=1000:5
x=200 - its the answer

Answer 2

Answer: $p\%=(p)/(100)\n\n5\%=(5)/(100)=0.05\n\nx-the\ number\n\n5\%\ of\ the\ number\ (x)\Rightarrow 0.05x\n\nThe\ equation:\n\n0.05x=10\ \ \ \ \ |divide\ both\ sides\ by\ 0.05\n\nx=(10)/(0.05)\n\nx=(1000)/(5)\n\n\boxed{x=200}\leftarrow ANSWER$

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How to solve this system of equation 3x + y= 17 and 4x + 2 y = 20

Answers

3x + y= 17 (a)
4x + 2 y = 20 (b)

Multiply (a) by 2:

6x + 2y = 34 (a)
4x + 2y = 20 (b)

make: (a) - (b)

2x = 14 -----> x =7

-------------------------------

Replace the value of x = 7 in one of anterior equation:

3x + y= 17
3 x 7 + y = 17
21 + y = 17
y = 17 - 21
y = -4

Rewrite the fraction in simplest form.
14/30

Answers

Find the greatest common factor. That is 2.
Divide both numbers by 2.
14 ÷ 2 = 7
30 ÷ 2 = 15

Your answer is 7/15

The answer is 7/15. The way to get that answer is to divide the numerator and the denominator by 2. Hope that helps!

Find the simplified form of the expression. Give your answer in scientific notation.(9x10^5)(6x10^-7)

Answers

5.4*10^-1

that's the answer in scientific notation

I would say the simplified form would be 20×10^-7

During a bike challenge, riders have to collect various colored ribbons. Each 1/2 mile they collect a red ribbon, each 1/8 mile they collect a green ribbon, and each 1/4 mile they collect a blue ribbon. Which colors of ribbons will be collected at the 3/4 mile marker?

Answers

Plus every fraction you will get 7/8
And the question says about the ribbons he will get at 3/4 miles

so let the whole road is 1

so, according to the equation ; (1-7/8) = 1/8

and (1-1/4) = 3/4

so the answer is green and blue

Answer:

Red ribbons: 1

Green ribbons: 6

Blue ribbons: 3

PLSSS HELP ME PLSSS
14 POINTS!
CAN'T YOU HELP ME THE BEAUTIFUL GIRL???!!!

Answers

Answer:

$(1)/(2)$

Step-by-step explanation:

Given: Kristen made 4 out of 5 throws in her first basketball game, 5 out of 8 in her second game and 5 out of 7 free throws in her third game.

To Find: The experimental probability of Kristen marking her first free throw in her fourth game.

Solution:

There are only two possibilities that the first throw will be free or not.

Hence, the total outcomes = 2

Hence, Probability that the throw is free = $(1)/(2)$

Hence, 1/2 is the experimental probability of Kristen marking her first free throw in her fourth game.

Please help me solve this question.

Answers

Cut the sign in half across its middle. Then you have two right triangles.
They're congruent, so pick one to work with, and discard the other one
temporarily.

In the right triangle:

-- The length of one leg is 'x'.
-- The length of the other leg is (2x + 7).
-- The length of the hypotenuse is 35.47 inches.

You know that in any right triangle:

(The square of the hypotenuse) =
(the square of one leg) + (the square of the other one.)

so you can use that to find the value of 'x'.

One you know the value of 'x', go back to the whole sign before you cut it
in half, and notice that the height of the sign is '2x' ... which is the answer.

height =2x so we must find x then multiply by 2

if we cut the triangle in half from with the line from left to right, we have a trianlgle that is x high and 2x+7 wide and the hyposonuse that is 35.47 so
a^2+b^2=c^2
x^2+(2x+7)^2=35.47^2
x^2+4x^2+28x+49=1258.12
group like terms
5x^2+28x+49=1258.12
subtract 1258.12 from both sides
5x^2+28x-1209.12=0
factor 5(x-13.0008)(x+18.6008)=0
therefore
(x-13.0008) or/and (x+18.6008)=0
x-13.0008=0
add 13.0008 to both sides
x=13.0008

x+18.6008=0
subtract 18.6008 from both sides
x=-18.6008
since heights cannot be negative, this solution can be discarded

so x=13.0008
2x=height=26.0016

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