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2 years ago

Needing help...again giving out many points if right (90 to be exact)

Mathematics

1 answer:

ddd [48]2 years ago

5 0

Answer:

x=12

Step-by-step explanation:

4x-10=3x+2

Subtract 3x on both sides:

x-10=2

Add 10 on both sides:

x=12

Hope this helps!

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Suppose that c varies jointly with d and the square of g, and c = 30 when d = 15 and g = 2.

maksim [4K]

Answer:

$d = \dfrac{3}{16}$

Step-by-step explanation:

c varies jointly with d and the square of g

$c\propto dg^2$

$c=kdg^2$

where, k is constant of proportionality.

Put the given value c = 30 when d = 15 and g = 2 and find out k

$30=k\cdot 15\cdot 2^2$

$k=\dfrac{1}{2}$

$c=\dfrac{1}{2}kg^2$

If c = 6 and g = 8 then d = ?

$6=\dfrac{1}{2}\cdot d\cdot 8^2$

$d=\dfrac{6\cdot 2}{8^2}$

$d=\dfrac{3}{16}$

Hence, The value of d is $\dfrac{3}{16}$

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3 years ago

You have nickels,dimes,and quarters to make a call that costs $0.75 how many different combinations of coins can you use to pay

Sveta_85 [38]

17 possible combinations

1. 3 quarters
2. 2 quarters, 1 dime, 1 nickel
3. 2 quarters, 3 nickels
4. 1 quarter, 5 dimes
5. 1 quarter, 4 dimes, 2 nickels
6. 1 quarter, 3 dimes, 4 nickels
7. 1 quarter, 2 dimes, 6 nickels
8. 1 quarter, 1 dime, 8 nickels
9. 1 quarter, 10 nickels
10. 7 dimes, 1 nickel
11. 6 dimes, 3 nickels
12. 5 dimes, 5 nickels
13. 4 dimes, 7 nickels
14. 3 dimes, 9 nickels
15. 2 dimes, 11 nickels
16. 1 dime, 13 nickels
17. 15 nickels

4 0

2 years ago

Ten times the sum of half a number and 6 is 8

Nookie1986 [14]

10(0.5x + 6) = 8
5x + 60 = 8
5x = 8 - 60
5x = -52
x = -52/5
x = -10.4

8 0

3 years ago

A coin is flipped 1000 times in a row. What is the probability that on the 999th flip, the coin will land on tails?

elena55 [62]

Answer:

50% chance

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

NEED HELP ASAP. :)))

maksim [4K]

The difference in mail handled between 195 and 1965 is -5.4 x 10

<h3>What is the difference in mail handled?</h3>

The data on the pieces of mail handled by the United States Postal Service is written in scientific notation. Scientific notation is used to compress larger numbers into smaller numbers.

In order to write a number in scientific notation, the number is written as a decimal number, between 1 and 10 and multiplied by a power of 10. For example, 1 x 10² is equivalent to 100

Difference in mail handled = mail handled in 1995 - mail handled in 1965

(1.8 x $10^{11}$ ) - (7.2 x $10^{10}$ )

(1.8 - 7.2) x $10^{11 - 10}$

-5.4 x 10

To learn more about scientific notation, please check: brainly.com/question/25334755

#SPJ1

4 0

8 months ago