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Sphinxa [80]
3 years ago
9

George bought 30 packs of football cards There were14 cards in each pack How many cards did george buy

Mathematics
2 answers:
kotykmax [81]3 years ago
5 0
The answer is 420 cause 30 x 14
mars1129 [50]3 years ago
3 0

Answer:

420

Step-by-step explanation:

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A stockholder sold her shares and made a profit of $1,327. If that is a profit of 22%, how much were the shares worth when she o
postnew [5]

Answer:

1087

Step-by-step explanation:

3 0
2 years ago
The side of the base of a square prism is decreasing at a rate of 7 kilometers per minute and the height of the prism is increas
Ber [7]

Answer:

dV = - 5.73*10⁹ m³/s

Step-by-step explanation:

Question: What is the rate of change of the volume of the prism at that instant (in cubic meters per second) ?

A function can be dependent on one or more variables. The change in the function due to a change in one o its variables is given by the functions derivative with respect to that variable. For functions that are composed of products of its variables, we may use the product rule to determine its derivative.

The volume of a square prism with base a and height h is given by

V = a²h

When the base and height are changing, we have

dV = 2ah(da/dt) +  a²(dh/dt)

Given

a = 4 Km

h = 9 Km

da/dt = - 7 Km/min

dh/dt = 10 Km/min

we have

dV = 2(4 Km)(9 Km)(- 7 Km/min) +  (4 Km)²(10 Km/min)

⇒   dV = - 504 Km³/min + 160 Km³/min = - 344 Km³/min

⇒   dV = - 5.73*10⁹ m³/s

8 0
3 years ago
Riley has r red peppers and 51 green peppers. Write an expression that shows how many peppers Riley has.
True [87]

Answer:

r+51 peppers

Step-by-step explanation:

8 0
2 years ago
If I put a different sticker on the 30th, 50th, and 60th pages will any of the first 600 pages have all 3 stickers?
icang [17]

Answer:

so the which page that will have the 3 sticker, we must solve the least common multiple of 30, 50, 60. A common multiple is a number that is a multiple of two or more numbers. The common multiples of 3 and 4 are 0, 12, 24, ....

The least common multiple (LCM) of two numbers is the smallest number (not zero) that is a multiple of both.

so the least common multiple of 30, 50 and 60 is 300. so the page that will have 3 stickers is 300th page

Step-by-step explanation:

8 0
3 years ago
Carol opened 20 different bags of the same kind of candy and recorded the colors and their frequencies, as shown in the table.
Alina [70]
It is 14% as you add up all of the numbers and divide 10 by that number and finally multiply by 100 for a percent
7 0
2 years ago
Read 2 more answers
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