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3 years ago

A 9-kg of mangoes for 12$_____per kg

1 answer:

5 0

If 9kg costs 12$, then a single kg costs around 1.3$

This is done with a simple proportion

9 : 12 = 1 : X
x = 12/9
x = 1.33

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Fifteen more than twice a number is 9

Elden [556K]

2x+15=9
2x= -6
so the answer is -3

7 0

4 years ago

GUYS HELP ITS A TEST AND IMMA FLUNK<br> 10/9 - 7/6=

alexandr402 [8]

Answer:

10/9−7/6= -1/18

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Determine all critical points the the function:

romanna [79]

$\bf y=x^2-32\sqrt{x}\implies \cfrac{dy}{dx}=2x-32\cdot \cfrac{1}{2}x^{-\frac{1}{2}}\implies \cfrac{dy}{dx}=2x-\cfrac{32}{2\sqrt{x}}
\\\\\\
\cfrac{dy}{dx}=2x-\cfrac{16}{\sqrt{x}}\implies \cfrac{dy}{dx}=\cfrac{2\sqrt{x^3}-16}{\sqrt{x}}\\\\
-----------------------------\\\\$

$\bf 0=\cfrac{2\sqrt{x^3}-16}{\sqrt{x}}\implies 0=2\sqrt{x^3}-16\implies 16=2\sqrt{x^3}
\\\\\\
8=\sqrt{x^3}\implies 2^3=\sqrt{x^3}\implies (2^3)^2=x^3\implies (2^6)^{\frac{1}{3}}=x
\\\\\\
2^{\frac{2}{1}}=x\implies \boxed{4=x}\\\\
-----------------------------\\\\
\textit{the other critical point at }\sqrt{x}=0\implies \boxed{x=0}$

7 0

3 years ago

U= 1,2,3,4,5,6 is the universal set A= 2,4,6 and B = 1,2,3 is the following true or false? U C B

lina2011 [118]

False, B actually belongs to U. B has all its numbers in set U but U doesn't have all its numbers in set B.

7 0

3 years ago

In your university nursing program the ratio of students who scored a grade of A vs B vs C on the final exam is 12:29:9. Assumin

Scilla [17]

Answer:

Hence, the correct option is 82%.

Step-by-step explanation:

Consider the provided information.

In your university nursing program the ratio of students who scored a grade of A vs B vs C on the final exam is 12:29:9.

We need to find the percentage of student who scored a grade of "B" or higher.

Let x is the common factor for the proportion.

Then, the number of students who got grade A is 12x

The number of students who got grade B is 29x

The number of students who got grade C is 9x.

Thus the total number of students = 12x+29x+9x = 50x

The percentage of student who scored a grade of "B" or higher:

12x+29x = 41x

$\frac{41x}{50x}\times{100}=82\%$

Hence, the correct option is 82%.

8 0

3 years ago