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3 years ago

Lena runs 2/3 mile each day she wants to know how many miles she has to run before she has has run a whole number

Mathematics

2 answers:

Afina-wow [57]3 years ago

8 0

It will take her 3 days for two miles

padilas [110]3 years ago

4 0

3 days and she will have run 2 miles

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Solve for the variable

krek1111 [17]

Answer:

G = 2/3

Step-by-step explanation:

-13G + 10 = 2(-5G + 4) Distribute the 2 to (-5G + 4)

-13G + 10 = -10G + 8

+13G +13G Add 13G to both sides

10 = 3G + 8

-8 -8 Subtract 8 from both sides

2 = 3G Divide both sides by 3

2/3 = G

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3 years ago

What is a bar graph ?

Gre4nikov [31]

Answer:

a diagram in which the numerical values of variables are represented by the height or length of lines or rectangles of equal width.

Step-by-step explanation:

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3 years ago

Will someone help with this ! I was allowed a retry for it and I don’t know how to do it

pashok25 [27]

Answer:

$\frac{dN}{dt}=k(725-N)\\separating the variables and integrating\\\int \frac{dN}{725-N}=\int kdt+c\\-log (725-N)=kt+c\\log (725-N)=-kt-c\\(725-N)=e^{-kt-c} =e^{-kt} *e^{-c} =Ce^{-kt} \\when t=0,N=400\\725-400=Ce^{0} =C\\C=325\\when t=3,N=650\\725-650=325e^{-3k} \\\frac{75}{325}=(e^{-k})^3\\\\e^{-k} =(\frac{3}{13}) ^{\frac{1}{3} } \\when t=5\\725-N=325(\frac{3}{13}) ^{\frac{5}{3} } =325*\frac{3}{13}*(\frac{3}{13} )^{\frac{2}{3}}\\N=725-75*(\frac{3}{13} )^{\frac{2}{3} }=725-28=697$

Step-by-step explanation:

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3 years ago

Find the value of 17/ tan ( 40) rounded to the nearest tenth.

nekit [7.7K]

Answer:

20.30

Step-by-step explanation:

$= 17 \div \tan(40) \\ = 17 \div 0.8391 \\ = 20.26$

To the nearest tenth =20.30

<h2><em>OladipoSeun</em></h2>

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2 years ago

Pls help I’m rlly confused. The question says “find the value of x using complementary angels” ty <3

Arturiano [62]

Answer:

x=83. please look below for explanation. if anything isn't clear, please ask

Step-by-step explanation:

so complementary means adding up to 90 degrees in math. in this particular equation, you have to make sure that both (x-18) and 25 add up to 90.

if that other side is 25 degrees, the other side must be 65 because 90-25=65.

so now you have to set those equal to each other like this:

65 = (x-18) now just solve for x

add the 18 to the other side. the -18 and +18 cancel.

x=83

so to test and to see if that is right, we can do

83-18 = 65

does 65+25 equal 90? yes

therefore, x=83

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2 years ago