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3 years ago

Find an expression equivalent to the one shown below.

Mathematics

1 answer:

liberstina [14]3 years ago

7 0

Answer:

I believe it would be A. 1

Step-by-step explanation:

$(8^{3} )^{9}$ ÷ $8^{27}$ = 1

hope this helps

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Two motorcyclists start at the same point and travel in opposite directions. One travels 10 mph

aleksandrvk [35]

Answer:

The first is traveling at 51 mph.

The second is traveling at 61 mph.

Step-by-step explanation:

$2(x+ 10) + 2x = 224\\2x + 20 + 2x = 224\\4x + 20 = 224\\4x = 204\\x = 51$

The first is traveling at 51 mph.

The second is traveling at 61 mph.

8 0

3 years ago

Read 2 more answers

PLEASE HELP LIKE RIGHT NOW

Grace [21]

Answer:

Question 21: -6-(-3)

Question 22: -7+12

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3 years ago

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Jerome went on a hike. He climbed 3/4 of a mile in 2/3 of an hour. What was his hiking speed in miles per hour?

Anvisha [2.4K]

1 hour = 60 mins 1 mile = 60 mins 3/4 = 45 mins. 2/3 = 40 mins. So 45+ 40 = 1 hour and 25 mins.

6 0

3 years ago

PLS HELP I WILL MARK YOU THE BRAINLEST Graph y>1−3x.

viva [34]

Answer:

Step-by-step explanation: ny line can be graphed using two points. Select two

values, and plug them into the equation to find the corresponding

values.

Graph the line using the slope and the y-intercept, or the points.

Slope:

−

y-intercept:

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)

6 0

3 years ago

CAN SOMEONE HELP ME !!!!!!!!!

MissTica

Answer:

She will get 80mg of dextromethorphan and 800mg of guaifenesin. And the bottle last for 6 days 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 = $\frac{100}{5}X40=800mg$

Dosage of medicine daily she has to take=40mL and the bottle contains 237 mL. Hence the number of days bottle last = $\frac{237}{40}=5.925$ ≈6 days approximately.

7 0

3 years ago