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2 years ago

MATHS. SOMEONE, PLEASE HELP I AM PRETY DESPERATE.

Mathematics

1 answer:

valentina_108 [34]2 years ago

7 0

Answer:

Step-by-step explanation:

the lowest where they all = the same is 60

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What is the quotient -3÷ 9

e-lub [12.9K]

Answer:

Your answer is -0.3333333333333

-Seth

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2 years ago

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There are 2 boys for every 3 girls. Today 5 new boys were added making the number of girls and boys the same. How many boys and

Anna11 [10]

Answer:

10 boys, 15 girls

Step-by-step explanation:

Original ratio: 2 boys/3 girls

let x be the scale factor of the ratio

2x plus 5 boys over 3x girls = 1 (because the # of boys/girls are the same)-------> 2x+5/3x = 1

Simplify: 2x+5=3x

Simplify: 5=x

plug x back into the original ratio: 10/15

Check: 10/15 = 2/3

10 boys + 5 boys = 15, 15/15 = 1

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2 years ago

Whats does 9+10 equal to?

Ymorist [56]

19 is the answer for this question

7 0

3 years ago

I built a storage shed in the shape of a rectangular box on a square base. The material that I used for the base cost $4 per squ

kumpel [21]

Answer:

side of 6.124 ft and height of 3.674 ft

Step-by-step explanation:

Let's s be the side of the square base and h be the height of the rectangular box.

The base and the roof would have an area of $s^2$ and cost of

$4s^2 + 2s^2 = 6s^2$

The sides would have an area of 4sh and cost of 4sh*2.5 = 10sh

So the total cost for the material is

$6s^2 + 10sh = 450$

$10sh = 450 - 6s^2$

$h = 45/s - 0.6s$

The volume of the shed has the following formula

$V = s^2h = s^2(45/s - 0.6s) = 45s - 0.6s^3$

To find the maximum value for V, we can take its first derivative, and set it to 0

$\frac{dV}{ds} = 45 - 1.2s^2 = 0$

$1.2s^2 = 45$

$s^2 = 45 / 1.2 = 37.5$

$s = \sqrt{37.5} = 6.124 ft$

h = 45/s - 0.6s = 3.674 ft

4 0

3 years ago

Someone plsss help me!!!!!

MariettaO [177]

Answer:

x = 2

Step-by-step explanation:

the formula for this problem is

Area = 1/2 base x Height

step 1) plug in what we know

5 = 1/2 base(5)

step 2) switch sides

1/2 base x 5 = 5

step 3) divide both sides by 1/2 x 5

$\frac{1/2 base( 5)}{1/2(5)}$ = $\frac{5}{1/2(5)}$

step 4) Simplify

$\frac{1/2 base (5)}{1/2 (5)}: b$

step 5) Simplify

$\frac{5}{1/2(5)}: 2$

step 6) now you have gotten the answer<u> x = 2</u>

6 0

3 years ago