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3 years ago

Make u the subject- 1) a=1/u + 1/2

Mathematics

1 answer:

Vlad [161]3 years ago

4 0

Answer:

u=2/2a-1

Step-by-step explanation:

a=1/u +1/2

you find the LCM first which is 2u

a=2+u/2u

cross multiply

2au=2+u

subtract u from both sides

2au-u=2

u is common to the right hand side

u(2a-1)=2

divide through by 2a-1

u=2/2a-1

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Express the fractions 3/4,7/16 and 5/8 with LCD

Nikitich [7]

The least common multiple of the three denominators is 16 because:

$4 \times 4 = 16 \\ 16 \times 1 = 16 \\ 8 \times 2 = 16$

Change the fractions so that each fraction has a denominator of 16.

$\frac{3 \times 4}{4 \times 4} = \frac{12}{16}$

$\frac{7 \times 1}{16 \times 1} = \frac{7}{16}$

$\frac{5 \times 2}{8 \times 2} = \frac{10}{16}$

____________________________________________________

$1. \frac{12}{16} \\ \\ 2. \frac{7}{16} \\ \\ 3. \frac{10}{16}$

4 0

4 years ago

The speed limit sign on the freeway said 110 kilometers per hour, but the speedometer on Cesar's car is calibrated in miles per

Lisa [10]

Answer:

68.2 miles per hour

Step-by-step explanation:

Speed limit = 110 kilometers per hour

1 kilometer = 0.62 miles

110 kilometers = x miles

Cross product

1*x = 0.62*110

x = 68.2 miles

Cesar should drive at 68.2 miles per hour to avoid a speeding ticket

110 kilometers per hour = 68.2 miles per hour

6 0

3 years ago

What in a region can be affected by latitude, topography, altitude and closeness to a large body of water, jet streams and surfa

ELEN [110]

Answer:

Hey!

Step-by-step explanation:

Latitude, or how far one is from the equator, greatly affects the climate and weather of an area. If you live close to the equator, the climate will be warmer, while moving north or south from the equator brings a cooler climate. Altitude, or how high one is above sea level, has a similar effect–the higher the elevation, the colder the climate.

Hope this helps! :)

Have a nice day♥

8 0

3 years ago

Can someone help me

goldenfox [79]

Answer:

Step-by-step explanation:

i cannot help you

6 0

3 years ago

Lisa is painting a fence that is 26 feet long and 7 feet tall. A gallon of paint will cover 350 square feet. Write and solve a p

mina [271]

26x7= 183 sq ft. 182/350=.52 gallons of paint

3 0

4 years ago