3 years ago

8- 5 (a + b) + 3 (a - 2b)

Mathematics

1 answer:

Alexeev081 [22]3 years ago

7 0

Answer: 8-2a-11b

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Jonah received $300 in cash gifts for his fourteenth birthday. the function y remaining after x week if Jonah spends $25 each we

Alex Ar [27]

Assume that y its Jonah's cash and its initially 3000
y=300
But he spends 25/week. Assume that x is number of weeks.
y=300-25*x - its our function
If we want to find Jonahs cash after 9 week we have to substitute x=9, so
y=300-25*9
y=300-225
y=75$ - its the result

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3 years ago

7.24 + 5.3 = 3m<br><br> what is the true answer ?

laiz [17]

Answer:

7.24 + 5.3 = 3m

=> 3m = 12.54

=> m = 12.54/3

=> m = 4.18

<h2>Answer = 4.18</h2>

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3 years ago

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Dahasolnce [82]

Answer:

Step-by-step explanation:

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4 years ago

A fire is sighted due west of lookout A. The bearing of the fire from lookout B, 8.2 miles due south of A, is N 33.90°W (meaning

icang [17]

Well you will get a right angled triangle Using Cos x = adj/hyp cos33.9 = 8.2/hyp hyp=8.2 / (cos33.9). So it would be <span>9.9 miles to 1 dp</span>

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3 years ago

Set 4x equal to x+30 and solve.

prisoha [69]

Answer:

x = 10

Step-by-step explanation:

1) Subtract x from both sides.

4x − x = 30

2) Simplify 4−x to 3x

3x = 30

3) Divide both sides by 3

x = $\frac{30}{3}$

4) Simplify $\frac{30}{3}$ to 10

x = 10

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3 years ago