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bearhunter [10]
3 years ago
14

X + (-9) + 9 = 8 solve the equation using mental math

Mathematics
1 answer:
Studentka2010 [4]3 years ago
8 0

Answer:

X=8 simplify equation

Step-by-step explanation:

-9+9=0

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Two standard 6-sided number cubes are rolled, a red one and a blue one. How many different sums are possible? ​
AlladinOne [14]

Answer:

There are 11 different sums.

Step-by-step explanation:

When you roll two dice, the smallest number you can get is 2, and the largest 12, and you can get all in between. So 12-2 is equal to 10, but we have to add another 1 because 2 counts. So the answer is 11.

8 0
3 years ago
Anyone know this? algebra 1 is so hard LOL
musickatia [10]

Answer:

Y= 2x+3

Step-by-step explanation:

The slope of two parallel lines are always the same.

8 0
2 years ago
Look Down Below For question:
Ray Of Light [21]
The cattle train
speed - 36.5 km/h
time - x h

the passenger train
speed - 29.2 km/h
time - (2.4+x) h

The cattle train caught up to the passenger train so the distance they travelled is the same.
Distance is speed times time.

36.5 \times x=29.2 \times (2.4+x) \\
36.5x=70.08+29.2x \\
36.5x-29.2x=70.08 \\
7.3x=70.08 \\
x=\frac{70.08}{7.3} \\
x=9.6 \\ \\ 2.4+x=2.4+9.6=12

The passenger train travelled for 12 hours before the cattle train caught up.
7 0
3 years ago
Read 2 more answers
Ryan Reynolds saw a coat was marked down 40 percent during a sale. If the original price was $150, what was the sale price of th
drek231 [11]
Hello!

To calculate the sale price of the coat, we can simply multiply 150 by .40, then subtract the product from 150.

150 × .40 = 60
150 - 60 = 90

The sale price of the coat is $90.

4 0
3 years ago
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Use the distributive property to write the following expression in expanded form 2 ( b + c)​
lapo4ka [179]

Answer:

Step-by-step explanation:

2b+2c

7 0
3 years ago
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