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serg [7]
3 years ago
12

Evaluate (-4 + -3) – (2 – 7)

Mathematics
2 answers:
Tanya [424]3 years ago
5 0

Answer: -2

Step-by-step explanation:

(-4+-3) -(2-7)

-7 - -5

-7+5= -2

Olenka [21]3 years ago
4 0

Answer:

Step-by-step explanation:

(-4)  & (-3) have same sign ( -ve) . So add and put the (-) sign for the result.

2 is a positive number and (-7) is a negative number. Subtract and put the sign of the bigger number for the result.

(-4 + (-3) ) - (2 - 7) = -7 - (-5)

                           = - 7 + 5

                            = -2

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AleksandrR [38]
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3 years ago
CAN SOMEONE HELP ME !!!!!!!!!
MissTica

Answer:

She will get <u>80mg</u> of dextromethorphan and <u>800mg</u> of guaifenesin. And the bottle last for <u>6 days</u> approximately.

Step-by-step explanation:

Given that the Robitussin DM contains dextromethorphan 10mg/5mL and gualfenesin 100mg/5mL. And we are also given that Mrs Smith took four doses and each dose is 2 teaspoons=2X5=10mL.

So, four doses=4X10=40mL.

So, dextromethorphan in 4 doses is = \frac{10}{5}X40=80mg

And Guaifenesin in 4 doses is = \frac{100}{5}X40=800mg

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7 0
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irina [24]

Answer:

d

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2 years ago
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