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julia-pushkina [17]
3 years ago
9

Frank can type a report in 3 hours. James takes 8 hours to type it. How long will it take the two of them typing​ together?

Mathematics
1 answer:
ch4aika [34]3 years ago
8 0

Answer:

it might take 11 hours

Step-by-step explanation:

i think

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If x varies inversely as p and x=2 when p=4 find the formula connecting them​
Doss [256]

Answer:

x = \frac{p}{2}

Step-by-step explanation:

x ∝ p

x = kp -------(1)

<em><u>Where k is the constant of proportionality.</u></em>

Now, x = 2 when p = 4

<em>Putting in the above formula</em>

2 = k(4)

<em>Dividing both sides by 4</em>

k = \frac{2}{4}

=> k = \frac{1}{2}

Putting k in (1)

x = \frac{p}{2}

<em>Now this is the required equation connecting both.</em>

4 0
4 years ago
A triangle has an area of 78 square inches. Its base is measured to be 13 inches. What is the height of this triangle in inches?
Fynjy0 [20]

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{12 \: inches}}}}}

Step-by-step explanation:

Given,

Area of a triangle = 78 square inches

Base of a triangle = 13 inches

Height of a triangle = ?

<u>Finding</u><u> </u><u>the</u><u> </u><u>height</u><u> </u><u>of</u><u> </u><u>a</u><u> </u><u>triangle</u>

\boxed{ \sf{area \: of \: a \: triangle =  \frac{1}{2}  \times  \: base \:  \times  \: height}}

\dashrightarrow{ \sf{78 =  \frac{1}{2}  \times 13 \times h}}

\dashrightarrow{ \sf{78 = 6.5 \: h \: }}

\dashrightarrow{ \sf{6.5 \:  h = 78}}

\dashrightarrow{ \sf{ \frac{6.5h}{6.5}  =  \frac{78}{6.5}}}

\dashrightarrow{ \sf{h = 12 \: inches}}

Hope I helped!

Best regards! :D

4 0
3 years ago
Pls help me!!! (I know the answer but i have I am not sure about the fraction...)
Fofino [41]

Answer:it's 1/625

Step-by-step explanation:

You times the denominator 5 from 1/5 by 5 4 times to get 1/625

6 0
4 years ago
A population of 805 cheetahs decreases by 10% per year. How many cheetahs will there be in the population after 6 years?
Phantasy [73]

Answer:

Step-by-step explanation:

y = a(b)^x

a would represent the initial value.

b would represent the change

x represents the number of years

y = 805(0.9)^6

y = 805(0.531441)

y = 427.8

y =  427 cheetahs

4 0
3 years ago
18: 12 in simplest ratio form
Vladimir79 [104]

Answer:

3 : 2

Step-by-step explanation:

18: 12

Divide each side by 6

18/6 : 12/6

3 : 2

This is in simplest form

8 0
3 years ago
Read 2 more answers
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