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zysi [14]
2 years ago
11

In the number 78.9 what digit is in the tenths places​

Mathematics
2 answers:
padilas [110]2 years ago
8 0
The answer will be 9
Nastasia [14]2 years ago
3 0

Answer:

9

Step-by-step explanation:

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Two teachers purchase supplies for their classrooms.
inna [77]

Answer:

Cost of One Journal =  $3.99

Cost of One pen =  $0.59

Step-by-step explanation:

Let

Cost of One Journal = x

Cost of One pen = y

We can make equation from given statements.

Mr. Bowden purchases 18 journals and 40 pencils for $95.42.

18x+40y=95.42

Ms. Jacinto purchases 11 journals and 16 pencils for $53.33.

11x+16y=53.33

Now solving these equations to find the value of x

18x+40y=95.42--eq(1)\\11x+16y=53.33--eq(2)

Multiply eq(1) with 2 and eq(2) with 5

36x+80y=190.84\\55x+80y=266.65\\-\:\:\:\:-\:\:\:\;\:\:\:\:\:\:\:-\\---------\\-19x=-75.81\\x=\frac{-75.81}{-19}\\x=3.99\\

We get the value of x is: x=3.99

Now, putting value of x in equation 1 to find value of y.

18x+40y=95.42\\18(3.99)+40y=95.42\\71.82+40y=95.42\\40y=95.42-71.82\\40y=23.6\\y=\frac{23.6}{40}\\y= 0.59

So, we get the value of y: y = 0.59

Now, finding the costs:

Cost of One Journal = x = $3.99

Cost of One pen = y = $0.59

7 0
3 years ago
HALLP!! DUE IN 20 MINS!!! PLS HALLP! IF YOU HELP ILL MAKE IT BRAINLIEST! (Only if the answers right tho) Which table represents
Fantom [35]

Answer:

Step-by-step explanation:

top right is nonlinnear

7 0
3 years ago
Read 2 more answers
33 34 and 35 please help
Kryger [21]

first you have to find the triangle, then you can move to the actual question.

x+30+80 = 180

x+110 = 180

x+110 - 110 = 180-110

x =70

now you can go to the actual question.

y + 70 = 180

y+70- 70 = 180-70

y = 110

there is your answer. hope this is helpful

7 0
3 years ago
Two boats started to move towards each other from two boat stations, located 30 miles apart. One boat moved at a speed of 3 mile
Ganezh [65]

Answer: <u>3 hours and 20 minutes</u>

Step-by-step explanation:

3x + 2(3)x = 30

3x + 6x     = 30

9x             = 30

9/9           = 30/9

x = 3 1/3 hours

6 0
2 years ago
if there are 450 campers and 2/3 decides to come back next year how many campers will be coming back next year
DedPeter [7]

Answer:

So 452.3 campers will be coming back next year

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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