2 years ago

Solve- 1/4(8y-4.8)=2(0.9y+5.4)+3/5 thanks! :)

Mathematics

2 answers:

artcher [175]2 years ago

4 0

Answer:

y=63

Step-by-step explanation:

2y-1.2=1.8y+10.8+.6

.2y=10.8+.6+1.2

.2y=12.6

y=63

Vladimir [108]2 years ago

3 0

Answer:

Step-by-step explanation:

y=63

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4/9 divided by what equals 12

Dahasolnce [82]

(4/9)/x= 12

Multiply both sides by x
4/9=12x

Divide both sides by 12
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4/108= 1/27

Final answer: 1/27

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It's 3.15 pm and Adam needs to post the parcel. The journey to the post office takes 36 minutes. Adam queues in the post office

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Answer:

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Step-by-step explanation:

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2 years ago

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stepladder [879]

Attached you will see the solution using the trig plane and general solutions.

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2 years ago

It is 4.7 km from Lighthouse A to Port B. The bearing of the port from the lighthouse is N73°E. A ship has sailed due west from

Gennadij [26K]

Answer:

correct option is C. 3.7 km

Step-by-step explanation:

given data

A to Port B = 4.7 km

lighthouse = N73°E

lighthouse = N31°E

solution

we get here first $\angle$ B and

here

$\angle$ A = 90 - 73 = 17°

$\angle$ B = 73 - 31 = 42°

and

sum of all angle 180° so

$\angle$ A +

17° + 42° + $\angle$ C = 180°

solve it we get

$\angle$ C = 121°

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$\frac{b}{sinB} = \frac{c}{sinC}$ ........................2

put here value and we get

$\frac{b}{sin42} = \frac{4.7}{sin121}$

solve it we get

b = 3,7 km

so correct option is C. 3.7 km

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2 years ago