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4 years ago

Topic Test

Mathematics

1 answer:

ladessa [460]4 years ago

7 0

Answer:

B part Rate the 0ercent that interest is paif anually as a decimal

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andre rode his bike at a constant speed he rode 1 mile in 5 minutes which of these equations represents the amount of time in mi

Alex777 [14]

We are given

Andre rode his bike at a constant speed he rode 1 mile in 5 minutes

Firstly, we will find constant speed

In 5 minutes , distance travelled =1 miles

so, we get speed

$v=\frac{1}{5} mile/min$

Let's assume T is time in minutes

D is the distance in miles

we know that

$Time=\frac{Distance}{speed}$

so, we can plug value

and we get

$T=\frac{D}{\frac{1}{5} }$

so, we get

$T=5D$ ...............Answer

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3 years ago

What is 4+5=20 +34+56

enyata [817]

This question’s answer is no solution, unless there was a typo. If there was, comment, and i’ll Answer it!

7 0

3 years ago

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A company policy requires that, for every 30 employees, there must be 3 supervisors. If there are 261 supervisors at the company

Luda [366]

Every 30 employees..........................................3 supervisors
?..............................................................261 supervisors
number of employees=(261x30)/3=2610
choice C

5 0

3 years ago

Y is inversley proportionaly to x. when y=7, x=9

mrs_skeptik [129]

The equation is y = 63/x

And y = 3 when x=21

Step-by-step explanation:

When y varies inversely with x, The inverse proportion is given by:

y ∝1/x

When the proportionality symbol is removed, a constant of proportionality is introduced

$y = \frac{k}{x}$

Putting y = 7 and x = 9

$7 = \frac{k}{9}\\k = 9*7\\k = 63$

So,

$y = \frac{63}{x}$

Putting x =21

$y = \frac{63}{21}\\y = 3$

Hence,

The equation is y = 63/x

And y = 3 when x=21

Keywords: Proportion, variables

Learn more about proportion at:

#LearnwithBrainly

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3 years ago

How do you multiply powers that have the same base

Alecsey [184]

Answer:

The exponent "product rule" tells us that, when multiplying two powers that have the same base you can add the exponents in this example you can see how it works. Adding the exponents Is just a short cut! the "power rule" tells us that raise power to a power, just multiply the exponents

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3 years ago