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Oksana_A [137]
2 years ago
9

Only simplify! please solve

Mathematics
1 answer:
Sholpan [36]2 years ago
7 0

Answer:

-x + 2y - 36

Step-by-step explanation:

-4(x + 9) + 3(x - y) + 5y

Distribute;

-4x - 36 + 3x - 3y + 5y

Collect like terms;

-1x + 2y - 36

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What is the total amount in an investment of $3500 that was compounded quarterly for 8 years at a rate of 5%?
erica [24]

Answer:

Principal = 3500

Time = 8 years

We are given that compound quarterly

So, No. of compounds per year = 2

Rate of interest = 5%

Formula : A=P(1+\frac{r}{n})^{nt}

Substitute the values :

A=3500(1+\frac{0.05}{2})^{2 \times 2}

A=3863.345

Interest = 3863.345 - 3500 = 363.345

Hence the total amount in an investment of $3500 that was compounded quarterly for 8 years at a rate of 5% is $3863.345 and the interest that was made on that account mentioned is $363.345

8 0
3 years ago
2.58, 2 5/8, 2.6, 2 2/3 least to greatest
8090 [49]

Answer:

2.58, 2.6, 2 5/8, 2 2/3

Step-by-step explanation:

2.58, 2.6, 2 5/8 can be converted into 2.625, and 2 2/3 can be converted into 2.66 with 6 being repeated over & over.

3 0
3 years ago
There are 1920 fence post used in a 12 kilometer stretch of fence how many fence post are used in 1 kilometer of fence
Nonamiya [84]
160 posts are used per 1 km
3 0
3 years ago
4 is subtracted from r
SIZIF [17.4K]

Answer:

Algebraic expression ;

r-4

Step-by-step explanation:

4 is subtracted from r  means the same as r decreased by 4

Subtracted = -

r - 4

3 0
3 years ago
Read 2 more answers
The chairlift at a ski resort rises a total of 2600 feet from where it starts. The angle of elevation is about 22.3 degrees. How
Monica [59]

Answer:

6852 feet .

Step-by-step explanation:

Refer the attached figure

The chairlift at a ski resort rises a total of 2600 feet from where it starts. i.e.AB = 2600 feet

The angle of elevation is about 22.3 degrees.i.e.∠ACB= 22.3°

We are supposed to find  How far do riders travel on the lift i.e.AC

In ΔABC

We will use trigonometric ratio

Sin\theta =\frac{Perpendicular}{Hypotenuse}

Sin22.3^{\circ} =\frac{AB}{AC}

AC=\frac{2600}{Sin22.3^{\circ}}

AC=\frac{2600}{0.379456159529}

AC=6851.9

So, riders travel 6852 feet .

3 0
3 years ago
Read 2 more answers
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