Which of the following is a prime number between 40 and 50? A. 41 B. 45 C. 44 D. 49

Riya is applaying mulch to her garden. She applies it at a rate of 250,000 cm3 of mulch for every m2 of garden space. at what ra

mart [117]

For this case the first thing you should do is take into account the following conversion:

$1m = 100cm$

Therefore, by applying the conversion we have:

$(250,000\frac{cm^3}{m^2})((\frac{1}{100})^3\frac{m^3}{cm^3})$

Rewriting we have:

$(250,000\frac{cm^3}{m^2})(\frac{1}{100^3}\frac{m^3}{cm^3})$

$(250,000\frac{cm^3}{m^2})(\frac{1}{1,000,000}\frac{m^3}{cm^3}) = 0.25\frac{m^3}{m^2}$

Answer:

The rate in m^3/m^2 is:

$0.25\frac{m^3}{m^2}$

4 0

4 years ago

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Please help me 50 points and brainliest for all questions

ElenaW [278]

The square roots for all of the answers would be rooted 2 squared time whatever number you picked for the first part

5 0

3 years ago

9 out of 12 is what percent?

Alina [70]

Answer:

9 out of 12 is 75%

Step-by-step explanation:

you would divide 9 by 12, and your answer would be:

1) 0.75 for decimal form

2) 75% for percentage

3) 3/4 for fraction

3 0

3 years ago

What number is 90% of 350?

tatyana61 [14]

Answer:

315

Step-by-step explanation:

10% of 350 is 35 so 35 times 9 would equal 315

7 0

3 years ago

For each equation, determine whether it has no solutions, exactly one solution, or is true for all values of x (and has infinite

nignag [31]

Answer:

Equation 1 has exactly one solution.
Equation 2 has infinitely many solutions.
Equation 3 has no solution.

Step-by-step explanation:

We are given three equations to solve. First, let's solve the equations for x.

Equation 1

$\displaystyle{6x+8=7x+13}\\\\7x + 13 = 6x + 8\\\\x + 13 = 8\\\\\bold{x = -5}$

Therefore, we determined that for the first equation, x = -5. We can check our solution by substituting it back into the original equation.

$\displaystyle{6(-5)+8=7(-5)+13}\\\\-30 + 8 = -35 + 13\\\\-22 = -22 \ \checkmark$

Since we got a true statement, there are no other values of x for which we get a true statement. Let's test this with the opposite value: positive 5.

$6(5)+8=7(5)+13\\\\30 + 8 = 35 + 13\\\\38 = 48 \ \text{X}$

Therefore, for Equation 1, there is exactly one solution.

Equation 2

$6 x + 8 = 2 ( 3 x + 4 )\\\\6x + 8 = 6x + 8\\\\0 + 8 = 8\\\\8 = 8 \ \checkmark$

We get a true statement by solving for x (which ends up canceling out of the equation entirely). Therefore, we can check any value in place of x to see if we get a true statement. For this instance, I will use -3.

$6(-3) + 8 = 2 ( 3(-3) + 4 )\\\\-18 + 8 = 2(-9+4)\\\\-18 + 8 = 2(-5)\\\\-18 + 8 = -10\\\\-18 = -18 \ \checkmark$

We still get a true statement, so Equation 2 has infinitely many solutions.

Equation 3

$6 x + 8 = 6 x + 13\\\\0 + 8 = 13\\\\8 \neq 13$

We get a false statement. Therefore, Equation 3 has no solution.

3 0

3 years ago

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