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VLD [36.1K]
3 years ago
9

Help me please really help

Mathematics
1 answer:
Phantasy [73]3 years ago
5 0

Answer:

60

Step-by-step explanation:

10 x sqrt64 - 5 x 4

10 x 8 - 5 x 4

80 - 20

60

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after a 7% increase in salary, laurie makes $1647.80 per month how much did she earn per month before the increase
enyata [817]

1647.80 - ( \frac{7}{100} ) \\  = 115.346 \\  \\ so \: before  \: the \: increase \:  price \:  \:  \:  \\ 1647.80 - 115.346 \\  = 1532.454
5 0
3 years ago
Number of rides marine can go on ?
saul85 [17]

Answer:

Check step by step explanation

Step-by-step explanation:

a) Let x represent the amount of rides she takes, the 6 and 2.5 represent the amount of money required to enter

A(x) = 1.5x + 6

B(x) = 2x + 2.5

b) You can find this by making the 2 equations equal to each other and solving for x

1.5x + 6 = 2x + 2.5

3.5 = .5x

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7 rides make them equal cost

c) Plug in 5 for each of the equations and find out which one is cheaper

A(5) = 1.5 * 5 + 6

A(5) = $13.50

B(5) = 2 * 5 + 2.5

B(5) = $12.50

Carnival B is cheaper

4 0
4 years ago
In 1996, Town M had a population of 30,500 people, and it has grown at a rate of 2% every year. In 1996, Town N had 32,500 peopl
hram777 [196]
Forget the 1996 for the moment.  Just count the number of years that go by.

30500*(1.02)^x= 32500 + 600x The easiest way to handle this is either to use a spreadsheet or graph if. I don't see an algebraic way of doing it. I'll try the graph first.

The red line is y = 32500 + 600x

Now let's try a spreadsheet.

I can't copy and past a spreadsheet's contents, but it shows that they are about equal when x = 17.
y = 32500 + 600x gives 42700 when x = 17
y = 30500*(1.02)^17 gives 42707 when x = 17 You cannot get much closer than that.

5 0
3 years ago
What is the center of a circle whose equation is X2 + Y2 - 12 x - 2 y + 12 equals 0
Alik [6]
Hello :
<span>x² + y² - 12 x - 2 y + 12 = 0
(x²-12x) +(y² -2y) +12 = 0
</span>(x²-2(6)(x)+6²)-6² +(y² -2y+1) -1+12 = 0
(x-6)² +(y-1)² = 5²
<span>the center of a circle is (6, 1)</span>
8 0
3 years ago
Three coins are tossed onto a table and the numbers of heads are recorded . the number of possible outcomes for this event is
horrorfan [7]
It can either have no heads, 1 head, 2 heads, or three heads, therefore A) 4
4 0
4 years ago
Read 2 more answers
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