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koban [17]
3 years ago
5

SUIVE

Mathematics
1 answer:
Marrrta [24]3 years ago
4 0

Answer:

Step-by-step explanation:

t = tutoring and g = grocery store

t + g = 15......t = 15 - g

15t + 9g = 159

15(15 - g) + 9g = 159

225 - 15g + 9g = 159

-15g + 9g = 159 - 225

-6g = - 66

g = -66/-6

g = 11 <===== 11 hrs worked at the grocery store

t + g = 15

t + 11 = 15

t = 15 - 11

t = 4.....4 hrs tutoring

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The heart beats 103680 per year, how many heart beats per minute?
kompoz [17]

Answer:

Step-by-step explanation:

60 sec= 1 min

60min=1hour

24hours=1day

7days=1week

52 weeks =1 year

24x7= 168hours in a week

168hours x 52 =8736 hours in a year

8736x60=524160mins

524160mins=  1 year

the heart beats 103680 in a year

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6 0
3 years ago
What x value solves the equation?<br><br> 3x – 5 = 1
anzhelika [568]

Answer:

x=2

Step-by-step explanation:

Add 5 to each side.

3x-5+5=1+5

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8 0
3 years ago
Read 2 more answers
Quick help!!! Also pls show work!
Rasek [7]

Answer:

10a. No

10b. No

10c. Yes

10d. Yes

Step-by-step explanation:

10a. This equation does not because 3/4 x 8 = 6 and not 9.

10b. This equation doesn’t because 3x8 does not equal 28.

10c. This equation does because 5 x 8 = 40 which means y = 8.

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8 0
2 years ago
find the value of the letter in each of the following and give reasons for the steps involved 1 2 A+6 A B=A 0 9​
nekit [7.7K]

Question:

Find the value of the letter in each of the following and give reasons for the steps involved:

1 2 A

+ 6 A B =

A 0 9

Answer:

128 + 681 =  809

Step-by-step explanation:

Here, let's use the general form of numbers where any  letter must represent one value and each digit must be represented by just one letter.

Take the following:

A = 8

B = 1

Thus, A +B = 8 + 1 = 9

Also add:

8 + 2 = 10

In general form, tens digit is zero and the 1 is carried over.

I.e, A = 1 + 6 + 1 = 8

We can now see that,

A = 8

B = 1

Therefore,

1 2 A

+ 6 A B =

A 0 9

Will be written as:

128 + 681 =  809

4 0
3 years ago
Which choice explains the correct way to move the decimal to find the quotient in the problem 29.65 ÷ 100?
Murrr4er [49]
2 places to the left so it would be 0.2965
7 0
3 years ago
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