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posledela
2 years ago
12

Hi I really need help on 4 pls help

Mathematics
2 answers:
Katyanochek1 [597]2 years ago
8 0

Answer:

a. Draw a column for each ticket sold. (For 0-9, draw a bar upto 2. For 10-19, draw a bar upto 4. For 20-29, draw a bar upto 3. And for 30-39, draw a bar upto 1.

b. 10 students sold tickets

c. 40% of students sold 20 or more tickets

podryga [215]2 years ago
6 0

Answer:

a) attached image below

b) 10 studentssold tickets

c) 40% of students sold 20 or more tickets

Step-by-step explanation:

good job on number 3 !

Hope this helps, let me know if you have any questions :)

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Tony is evaluating his retirement savings. He currently has $318,000 in his account which earns an interest rate of 7% compounde
castortr0y [4]

Answer:

(1)A(t)= 318000(1.07)^t

(3)t=16.93 years

Step-by-step explanation:

For a Principal Saved at Compound Interest, the Amount accrued is derived by the function:

A(t)= P(1+r)^t

When:

(1)P=$318,000

r=7%=0.07

A(t)= 318000(1+0.07)^t\\A(t)= 318000(1.07)^t

(2)See Attachment

(3)If Tony's goal is to save $1,000,000.

1000000= 318000(1.07)^t\\(1.07)^t=\frac{1000000}{318000} \\(1.07)^t=3.1447\\Log_{1.07}\frac{1000000}{318000}=t\\t=16.93

(4)The graph confirms the result as the $1000000 Mark on the y-axes occurs almost at x=17

6 0
3 years ago
The sum of two positive integers is 97 and their difference is 37.<br> What is their product?
LuckyWell [14K]

Answer:

  2010

Step-by-step explanation:

If the numbers are x and y, you have ...

  x +y = 97

  x -y = 37

Adding these two equations gives ...

  2x = 134

  x = 67

  y = 67 -37 = 30

The product is then ...

  xy = (67)(30) = 2010

__

<em>Alternate solution</em>

There is no need to find the actual numbers. We can go directly to their product.

  (x+y)² = x² +2xy +y² = 97² = 9409

  (x-y)² = x² -2xy +y² = 37² = 1369

Subtracting the second equation from the first gives ...

  4xy = 9409 -1369 = 8040

  xy = 8040/4 = 2010

Of course the difference of squares can be factored, so we could compute ...

  (97² -37²)/4 = (97 +37)(97 -37)/4 = 134(60)/4 = 134(15) = 2010

8 0
2 years ago
Your pay increased from $230 to $250 per week. What is the percent increase of your weekly pay?
8090 [49]

Answer:

the answer is 8%

Step-by-step explanation:


3 0
3 years ago
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Two Points P and Q, 25 meters apart, are on the same Straight line, the same side and the same ground Level as the foot of the t
Lelechka [254]

Answer:

b

Step-by-step explanation:

7 0
3 years ago
What is the perimeter of a rectangle whose length is 1472 m and breadth is 1072 m ?
seropon [69]

Answer:

5088 is the perimeter of the rectangle.

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3 years ago
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