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fredd [130]
3 years ago
10

Math: Please help me I don’t understand and I need to do corrections.

Mathematics
1 answer:
GREYUIT [131]3 years ago
4 0
So, you had done everything right so far (other than squaring the 2), but that was only half of the question.

to find the least common multiple, you need to first figure out what the prime factors have in common.
{2}^{2}  \times 3 \times 5 \\ and \\  {2}^{2}  \times  {3}^{2}  \times 5 \times 7
each have two twos. both have one 5, so we know our answer will look something like
{2}^{2}  \times 5 \times other \: stuff
now to figure out the other stuff... we have to represent the greatest amount of everything that is left, and we have 3s and 7s left over, so we need to figure out how many of each we need.

one has one 3 and one has two, so we need two threes. now our equation is
{2}^{2}  \times {3}^{2}  \times 5 \times stuff

what's the only number we have to deal with? 7...

how many sevens does 60 have? 0, and 630 has 1, so we know we need one 7. our answer becomes
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Please help me do this problem. 20 points to the first one that helps me with these 2. I am very desperate.
MAVERICK [17]

Answer:

here's your answer:

Triangle ABC has vertices A(0,0), B(0,4), and C(3,0). Write the equation for the line containing altitude AR in standard...

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4 0
3 years ago
Peri spent 40% of her money on books and 50% of the rest on toys. She has $21. How much money did she have first.
Vlad1618 [11]
40/100 + 50/100 = 90/100

il lui reste  10/100 ou 21 $

10 % = 21 $
100 % = 210 $
6 0
3 years ago
A car rental agency rents 190 cars per day at a rate of 29 dollars per day. for each 1 dollar increase in the daily rate, 5 fewe
Leviafan [203]

The equation that we can create from this situation is:

i = (190 – 5 x) * (29 + x)

where i is the income and x is the increase in daily rate

Expanding the equation:

i = 5510 + 190x – 145x - 5x^2

i = -5x^2 + 45x + 5510

Taking the 1st derivative:

di/dx = -10x +45

Set to zero to get the maxima:

-10x + 45 = 0

x = 4.5

 

So the cars should be rented at:

29 + x = 33.5 dollars per day

 

The maximum income is:

i = (190 – 5*4.5) * (33.5)

i = 5,611.25 dollars

7 0
3 years ago
An amusement park charges $8 admission and $2 a ride show a table please
NNADVOKAT [17]

Answer:

Step-by-step explanation:

$ 8 admission and $ 2 a ride

y = 2x + 8.....where y is the total cost and x is the # of rides

table :

x =   1  , 2  ,  3  , 4   ,5   , 6

y = 10,  12 ,  14,  16 , 18 , 20

7 0
3 years ago
3.5 - 1.05 please help
netineya [11]

Answer:

The answer is 2.45

Step-by-step explanation:

I used this magic device called a calculator!

lol

5 0
3 years ago
Read 2 more answers
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