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GaryK [48]
3 years ago
15

4x-9y=9

Mathematics
1 answer:
Alexxandr [17]3 years ago
5 0
Multiply both sides of the second equation by 4. That will give you -4x in the second equation which when added to 4x of the first equation will eliminate x.

Second equation:
-x + 3y = 6

Multiply the second equation by 4 on both sides:
-4x + 12y = 26
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332,519,000 in scientific notation
alina1380 [7]

Answer:

332519000 in scientific notation is 3.32519 x 10^8

Step-by-step explanation:

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3 0
2 years ago
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Make x the subject of the formula y=(5t+5x)
Elan Coil [88]

Answer:

(y-5t)/5=x

Step-by-step explanation:

y=5t+5x

factorize

y=5(t+x)

divide both sides by 5

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y/5=t+x

make x to stand alone

y/5-t=x

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y/5-5t/5

y-5t/5=x

3 0
3 years ago
Derek has 4.8 pounds of potting soil. He puts equal amounts of soil in 8 pots. Derek draws this model to show how much soil is i
slamgirl [31]
0.6 would be in each pot because you divide 4.8 divided by 8 is 0.6
4 0
2 years ago
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a small plane lands at a point 324 miles east and 92 miles north of the point at which it took off. Find the distance the plane
Setler79 [48]

Answer: 336.80 miles, 15.85^{\circ} North of east

Step-by-step explanation:

Given

Plane lands at a point 324 miles east and 92 miles north

Distance is given by using Pythagoras theorem

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Direction is given by using figure i.e.

\Rightarrow \tan \theta=\dfrac{92}{324}\\\\\Rightarrow \tan \theta=0.2839\\\\\Rightarrow \theta=15.85^{\circ}

Direction is 15.85^{\circ} North of east

7 0
3 years ago
At the beginning of year 1, Zack invests $700 at an annual compound interest
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Answer: the answer is C

Step-by-step explanation:

8 0
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