3 years ago

Need the answer. Pic to describe.

Mathematics

2 answers:

masya89 [10]3 years ago

6 0

I think it’s b not sure could be wrong

antiseptic1488 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

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Question 2(Multiple Choice Worth 5 points) (04.01)The Boardman family walked two over five of a mile in two over seven of an hou

Zolol [24]

Answer:

The unit rate in miles per hour = 1.4 miles/hr

Step-by-step explanation:

Given that:

Distance walked by Boardman family = Two over five of a mile = $\frac{2}{5}\ miles$

Time taken by Boardman family = Two over seven of an hour = $\frac{2}{7}\ hour$

To find:

The unit rate in the miles per hour = ?

Solution:

Formula for the rate or the speed can be given as:

$Speed = \dfrac{Distance}{Time}$

Putting the values:

$\Rightarrow \dfrac{\frac{2}5}{\frac{2}7}\\\Rightarrow \dfrac{7}{5}\\\Rightarrow \bold{1.4\ miles/hr}$

So, the unit rate in miles per hour = 1.4 miles/hr

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3 years ago

The half-life of a certain radioactive material is 83 hours. An initial amount of the material has a mass of 67 kg. Write an exp

Anvisha [2.4K]

Answer:

Initial amount of the material is 67 kg
Hal-life is 83 hours

The required equation is:

m(x) = 67 * $(1/2)^{x/83}$ , where m- remaining amount of the radioactive material, x - number of hours

After 5 hours the material remains:

m(5) = 67 * $(1/2)^{5/83}$ = 64.260 (rounded)

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2 years ago

Solve the inequality for w . W-9 > 23Simplify your answer as much as possible.

lord [1]

The answer is W>33 this is as simplified at it can be

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3 years ago

Which graph represents the function f(x)=x2−49x+7?

Fudgin [204]

Answer:

Step-by-step explanation:

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3 years ago

Tony rode his bicycle 3 7/10 miles to school. What is this distance written as a decimal?

ollegr [7]

Answer:

7/10=0.7

3+0.7=3.7

3.7

Hope this helps

Step-by-step explanation:

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3 years ago