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2 years ago

Help ASAP I need to know

Mathematics

1 answer:

Andrej [43]2 years ago

4 0

Answer:

Step-by-step explanation:

ax + by = c

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What is the square root of 18457

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135.9 rounded to the nearest tenth

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3 years ago

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two boxes of apples contain a total of 24 apples. if you halve the number of apples in the first box and add 4 apples to the sec

Llana [10]

There was 16 apples in the first box and 8 apples in the second box initially.

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Alma invests $300 in an account that compounds interest annually. After 2 years, the balance of the account is $329.49. To the n

-Dominant- [34]

Invested amount (P) = $300.

Time in years (t) = 2 years.

Balance after 2 years (A) = $329.49.

Let us assume rate of interest = r % compounds annually.

We know, formula for compound interest

$A=P(1+r)^t$

Plugging values in formula, we get

$329.49=300(1+r)^2$

$\mathrm{Divide\:both\:sides\:by\:}300$

$\frac{300\left(1+r\right)^2}{300}=\frac{329.49}{300}$

$\left(1+r\right)^2=1.0983$

Taking square root on both sides, we get

$1+r=\sqrt{1.0983}$

$\mathrm{Subtract\:}1\mathrm{\:from\:both\:sides}$

$1+r-1=\sqrt{1.0983}-1$

$r=\sqrt{1.0983}-1$

$r=1.048-1$

r=0.048.

Converting it into percentage by multiplying by 100.

r=0.048 × 100

r = 4.8 %

Therefore, the rate of interest on the account is 4.8% compounds annually.

5 0

2 years ago

For the equation: 3x+1=2x+7 what are the 1 st and 2 nd opposite operations?

qaws [65]

Answer:

Step-by-step explanation:

3x +1 = 2x +7 subtract 1 from both sides ( first)

3x +1 -1 = 2x + 7 -1

3x = 2x + 6 subtract 2x brom both sides (second)

3x -2x = 2x -2x +6

5x = 6

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2 years ago

-84/28 i need help on this asap

scoundrel [369]

-3
........................................

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2 years ago