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photoshop1234 [79]
3 years ago
15

11. The rates for the following math tutoring services are listed below.

Mathematics
2 answers:
fomenos3 years ago
7 0

Answer: A

Step-by-step explanation:

A) 50/ 45 = 1.111....

B) 65/60 = 1.08333...

C) 99/90 = 1.1

D) 90/120 = .75

Reptile [31]3 years ago
3 0

Answer:

A

Step-by-step explanation:

Divide each amount by the number of minutes to find the rate per minute. Then multiply by 60 to find the hourly rate. Then compare the hourly rates.

A

$50 / 45 min * 60 = $66.66/hour

B

$65 / 1 hour = $65/hour

C

$99 / 90 min * 60 = $66/hour

D

$90 / 2 hours = $45/hour

Answer: A

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A collection of nickels and quarters is worth 2.85 . There are 3 more nickels than quarters how many nickels and quarters are th
Zolol [24]

A nickel is equal to 5 cents or 0.05 dollars.

A quarter is equal to 25 cents or 0.25 dollars.

Let number of nickels be = n

Let number of quarters be = q

0.05n+0.25q=2.85    ...........(1)

As it is given, there are 3 more nickels than quarters so equation becomes,

n=q+3   ................(2)

Plug in the value of 'n' from (2) in (1)

0.05(q+3)+0.25q=2.85

= 0.05q+0.15+0.25q=2.85

0.30q=2.70

q=9

As n=q+3 we get, n=9+3=12

Hence, there are 12 nickels and 9 quarters.

3 0
3 years ago
X+2y - 3z =15. 2x – 2z=6 x = 3. 2/3)-22 i dont know this answer pls help me???
kondor19780726 [428]

Answer(s):

Exact Form: x + 2 y − 3 z = 15 , 2 x − 2 z = 6 , 3 2 3

Mixed Number Form: x + 2 y − 3 z = 15 , 2 x − 2 z = 6 , 3 2 3

Improper Fraction Form: x + 2 y − 3 z = 15 , 2 x − 2 z = 6 , 11 3

Decimal Form: x + 2 y − 3 z = 15 , 2 x − 2 z = 6 , 3. ¯ 6

Hope this helps, have a nice day/night! :D

6 0
3 years ago
30Pts PLZ HELP
nlexa [21]
X hope that I helped you
7 0
3 years ago
Read 2 more answers
9 [100,000s] + 5 [10,000s] + 9 [1,000s] + 9 [100s] + 5 [10s] + 9 [1s]
navik [9.2K]

When added correctly, you will come to the answer of 959,959.

hope this helped, dont forget to mark this answer as the brainliest!!!!

6 0
3 years ago
In your own words what is the difference between an 'Equation' and 'Inequality' ?
goblinko [34]

An equation is a math problem that must be solved to find out to find out a difference, quotient, sum, or product.

An inequality is a math problem that must be solved to find out what the difference is between two numbers.

6 0
3 years ago
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