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4 years ago

Help help help helpppp

Mathematics

1 answer:

lord [1]4 years ago

4 0

Answer:

39.7

Step-by-step explanation:

first must calculate the length of AB and BC

AB = 16.43

CB= 12.216

then perimeter : Perimeter of a triangle = sum of all three sides

$16.43 + 11 + 12.216 = 39.646 = 39.7$

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A store has a sale for 15% off. You want a jacket that was originally $45. How much

Travka [436]

Answer:

es 51.75

Step-by-step explanation:

por que al sumar 45 + 15 porciento da 51.75

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2 years ago

What is 8/10 = N/220

Naddika [18.5K]

Step-by-step explanation:

$\frac{8}{10} = \frac{N}{220} \\ \\ \therefore \: N = \frac{220 \times 8}{10} \\ \\ \therefore \: N = 22 \times 8 \\ \\ \huge \purple { \boxed{\therefore \: N = 176}} \\ \\$

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3 years ago

A person invests 3000 dollars in a bank. The bank pays 6.75% interest compounded

stich3 [128]

Answer:

12.1 years

Step-by-step explanation:

We are given that

Principal amount, P=$3000

Rate of interest, r=6.75% semi-annually

Amount, A=$6700

We know that

When r pays semi-annually

$A=P(1+\frac{r}{n\times 100})^{nt}$

Where n=2

Using the formula

$6700=3000(1+\frac{6.75}{200})^{2t}$

$\frac{6700}{3000}=(1..03375)^{2t}$

$2.233=(1.03375)^{2t}$

Taking ln on both sides we get

$ln(2.233)=2t ln(1.03375)$

$2t=\frac{ln(2.233)}{ln(1.03375)}$

$t=\frac{1}{2}\times \frac{ln(2.233)}{ln(1.03375)}$

$t=12.1 years$

8 0

3 years ago

What is the slope of a line parallel to the line that passes through (4, -3) and (3, -1)?

FinnZ [79.3K]

Answer:

-2

Step-by-step explanation:

find rise over run with y1-y2/x1-x2 = -2/1 = -2

5 0

3 years ago

Last year, a local car dealership sold 200 more cars with automatic transmission than with standard transmission. During that ye

MatroZZZ [7]

Answer:

The total number of automatic transmission car dealership sell = 728

Step-by-step explanation:

Given as :

Let the total number of standard transmission car = S

And the total number of automatic transmission car = 200 + S

The percentage of blue standard car = 15%

The percentage of blue automatic car = 10%

Total number of blue car sold = 152

∴ 15% of S + 10% of ( 200 + S ) = 152

Or, 15 S + 10 × ( 200 + S ) = 152 × 100

Or, 25 S = 15200 - 2000

Or, 2 5 S = 13200

∴ S = $\frac{13200}{25}$

So, S = 528

I.e The total number of standard transmission car = S = 528

And the total number of automatic transmission car = 200 + 528 = 728

Hence The total number of automatic transmission car dealership sell = 728 Answer

6 0

3 years ago