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Lorico [155]
3 years ago
15

Which of the following is equivalent to the expression (3x² + 2x-8)-(2x² - 4x + 7)?

Mathematics
1 answer:
mihalych1998 [28]3 years ago
6 0

Answer: x^2+6x-15

Step-by-step explanation:

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Plzzzzzzzzz help will give brainliest!!
irina [24]

$21.6

---------------------------------------------------------------------------------------------

Step-by-step explanation:

Kilometres when Satish is alone

150 kilometres in the beginning

150 kilometres in the end

Total: 300 kilometres

Litres of gas when Satish is alone

6 litres of gas per 100 kilometres

6 x 3 for 300 kilometres = 18 litres

Cost of gas when Satish is alone

$1.2 per litre

18 x 1.2 = $21.6

Therefore, Satish will pay $21.6 for gas.

8 0
3 years ago
If about 25 babies are born every 5 seconds then how many babies are born in a minute, a hour, and a day?
anastassius [24]
5 = 25b
60 seconds / 5 = 12.
12 * 25 = 300.
300 babies / min
hr ? 300b * 60 min = 1800. 
1800 babies/ hr.
1800* 24 = 43200 babies in one day.
7 0
3 years ago
Solve the inequality –b < 4.
GalinKa [24]
B>-4

hope this helped.
3 0
3 years ago
Tanya drove 3 1/2 hours and used 1/3 tank of gas.
sergij07 [2.7K]
This can be solved by ratio and proportion. The first condition is
3 1/2 hours is to 1/3 tank of gas

The proportion relation is
3 1/2 : 1/3 :: x : 1/2

where x is the number of hours that Tanya can drive
7/2 / (1/3) = x / (1/2)
Solving for x
7/6 = x/2
x = 14/6 or 2 and 1/3 hours<span />
6 0
3 years ago
Read 2 more answers
Parker mixes 3 1/2 ounces of blue paint with 1 2/5 ounces of yellow paint to create green paint to use for the leaves of a tree
irina [24]
To answer this, you add 3 1/2 ounces and 1 2/5 ounces. So the answer is 4 9/10 ounces of green paint.
8 0
2 years ago
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