3 years ago

Simplify the expression. Write the answer using scientific notation. (910^7)(710^9)

Mathematics

1 answer:

kirill115 [55]3 years ago

7 0

first one: 9 x 10^8th i thinkor just 90 million

second one: 7 billion. 7 x 10^9

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4 over 5x minus 8 equals 3. what is x

ehidna [41]

4/5x-8=3
move -8 to the other side and add
4/5x=3+8
4/5x=11
move 5x to the other side and multiply
4=5x*11
4=55x
4/55=x

8 0

2 years ago

Leorys favorite basketball player is 6 feet 8 inches tall how tall i leorys favorite basketball player in inches

sladkih [1.3K]

Answer: " 80 inches " .
_______________________________
Explanation:
_______________________________
6 feet + 8 inches = ?

Note: 12 inches = 1 ft.

6 ft * (12 inches/ ft) = 72 inches;
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72 inches + 8 inches = 80 inches.
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4 years ago

Casey orders 3 pizzas and 2 orders of breadsticks for a total of $29.50. Rachel orders 2 pizzas and 3 orders of breadsticks for

saveliy_v [14]

The cost of one pizza is $8.5

Step-by-step explanation:

Let,

Cost of one pizza = x

Cost of one bread stick = y

According to given statement;

3x+2y=29.50 Eqn 1

2x+3y=23 Eqn 2