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zlopas [31]
3 years ago
6

IF ONE THIRD OF THE SCHOOL STUDENTS LIKE MATHEMATICS AND 400 STUDENTS DO NOT LIKE MATHEMATICS , THEN HOW MANY STUDENTS DOES THE

SCHOOL HAVE ?
A. 600 B. 800
C. 200 D. 1000
Mathematics
1 answer:
boyakko [2]3 years ago
8 0

Answer:

There are 600 students in this school.

Step-by-step explanation:

Let p represent the total population of the school.

Then (1/3)p represents the number of students who like math.  Subtracting this (1/3)p from p gives an expression representing those who do not like math:  

p - (1/3)p = (2/3)p

400 students do not like math, so (2/3)p = 400.

Solve this for p by multiplying both sides by (3/2):

(3/2)(2/3)p = (3/2)(400), which simplifies to p = 600.

There are 600 students in this school.

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An investment pays 4.6% annual interest compounded monthly. If $3100 is
elena55 [62]

Answer:

I think it's 2566.8 if 4.6 is taken out of the account annually. I think that is what it is asking.. I'm only 13 so I'm not great at these yet but it should be right because I'm really good at math

Step-by-step explanation:

3 0
3 years ago
A man sold a fan for Rs. 400. Find the cost price if he incurred a loss of 15%.
statuscvo [17]

Answer:

Cost price of the fan is \text {Rs. 470.59}.

Step-by-step explanation:

Given: A man sold a fan for  \text{Rs.}\:400. He incurred a loss of 15\%.

To find: The cost price of the fan

Solution:

We have,

Selling price, S.P.,  of the fan = \text{Rs.} 400

Loss =15\%

We know that \text {Loss\%}=\frac{\text{C.P.-S.P.}}{\text{C.P.}}\times100\%

Now let the C.P. of the fan be \text{Rs.} \:x

So, 15=(\frac{x-400}{x})\times 100

\implies 15x=100x-40000

\implies 100x-15x=40000

\implies 85x=40000

\implies x=\frac{40000}{85}

\implies x= 470.59

Hence, the cost price of the fan is \text {Rs. 470.59}.

7 0
3 years ago
The glass container has a length of 5 in., a width of 4.5 in., and a height of 3 in. If the container is filled to a height of 2
eduard
100(2.25/3)=75%
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3 0
3 years ago
Find the zeros of the polynomial function and state the multiplicity of each.
Oksi-84 [34.3K]

Answer:

a) 8, multiplicity 2; 8, multiplicity 3

Step-by-step explanation:

Remember that a is a zero of the polynomial f(x) if f(a)=0 and has multiplicity n if the termn (x-a) is n times in the factorization of f(x).

We have that

f(x)=3(x + 8)^2(x - 8)^3

Observe that

1. f(-8)=3(-8 + 8)^2(-8 - 8)^3=3*0*(-16)^3=0

and (x+8) appear two times in the factorization of f(x). Then -8 is a zero of f(x) with multiplicity 2.

2. f(8)=3(8 + 8)^2(8 - 8)^3=3*16^2*0^3=0

and and (x - 8) appear three times in the factorization of f(x). Then 8 is a zero of f(x) with multiplicity 3.

Since f(x) has degree 5 and the sum of the multiplicities is 5 then f(x) hasn't more zeros.

7 0
3 years ago
Person A buys 12 granola bars and 7 cups of yogurt for $15.50. Person B buys 6 granola bars and 11 cups of yogurt for $11.50. Fi
nlexa [21]

By trial and error, I got it first correctly. The granola bars cost $1 each and the yogurt is $.50 per cup. By plugging this in to each equation, you'll see that 12 granola bars equals $12, and 7 cups of yogurt equals $3.50, for a total of $15.50. The second account would produce $6 + $5.50, which equals $11.50.

3 0
3 years ago
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