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expeople1 [14]
3 years ago
8

A survey found that 3 out of 5 seventh graders have an email account. It there are 315 seventh graders how many would you expect

to have an email account?
Mathematics
1 answer:
professor190 [17]3 years ago
6 0
189 students should have an email account
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Your laptop battery will last for exactly 6 hours before it needs to be recharged.You have had your laptop on for
diamong [38]

Answer:

3\frac{1}{2} hours

Step-by-step explanation:

You have to subtract 2 1/2 from 6 and that will equal 3 and 1/2.

5 0
3 years ago
A computer store has certain software on sale at 3 for $20.00, with a limit of 3 at the sale price. Additional
alexgriva [62]

Answer:

a) y = 9.95(x-3) + 20.00

b) Cost of 5 software packages = $39.90

Step-by-step explanation:

Given that:

Cost of 3 software at sale = $20

Cost of regular = $9.95

Let,

x be the number of software purchased.

We will subtract 3 from x because they cost $20.

y be the total cost.

y = 9.95(x-3)+ 20.00

Putting x=5 in expression

y = 9.95(5-3) + 20.00

y = 2(9.95) + 20.00

y = 19.90 + 20.00

y = $39.90

Hence,

a) y = 9.95(x-3) + 20.00

b) Cost of 5 software packages = $39.90

7 0
3 years ago
PLEASEEE HURRY !!!
Morgarella [4.7K]

Answer:

b : $0.22 on edg.

Step-by-step explanation:

7 0
2 years ago
70=(4x+36)/2 figure this out please
adell [148]

Answer:

\boxed{\bold{\huge{\boxed{x = 26}}}}

Step-by-step explanation:

70 = \frac{4x+36}{2}

<u>Multiplying both sides by 2</u>

70 * 2 = 4x+36

140 = 4x+36

<u>Subtracting 36 to both sides</u>

140 - 36 = 4x

104 = 4x

<u>Dividing both sides by 4</u>

26 = x

OR

x = 26

3 0
3 years ago
Read 2 more answers
Plz plz plz help plz i need help
nadezda [96]

Answer:

62/10

Step-by-step explanation:

All the other options are positive integers, which are natural numbers.

6 0
2 years ago
Read 2 more answers
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