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3 years ago

Which purchase may people be required to save a small amount of money invested regularly that grows over time?

Mathematics

2 answers:

ivanzaharov [21]3 years ago

7 0

Answer:

college

Step-by-step explanation:

Hitman42 [59]3 years ago

3 0

A ?Or b I’m not really sure

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To celebrate getting a new job, Marco went out for a dinner that cost $100. If the localsales tax is 6% and Marco left a 15% tip

Art [367]

Answer:

$121

Step-by-step explanation:

So if the meal cost $100, finding out the percentages is pretty easy.

The sales tax is 6%, and 6% of 100 is simply 6.

15% of 100 is simply 15.

So, adding the total cost of the meal plus the sales tax plus the tip is simply $121.

4 0

3 years ago

an airplane is 180 feet long. blake makes a scale model of the airplane 1:45 of its actual size. how long is the airplane

LenaWriter [7]

Answer: 4 feet

Step-by-step explanation:

An airplane is 180 feet long.

Blake makes a scale model of the airplane which is 1:45 of its actual size. To find the length of the airplane model goes thus:

= 1/45 × 180

= 4 feet

The model is 4 feet

7 0

3 years ago

Find the area and circumference.

saveliy_v [14]

Answer:

area ≈ 176.7 cm²
circumference ≈ 47.1 cm

Step-by-step explanation:

The radius is half the diameter, so is ...

r = d/2 = 15 cm/2 = 7.5 cm

The area formula is ...

A = πr²

Filling in the radius, we have ...

A = π·(7.5 cm)² = 56.25π cm² ≈ 176.7 cm² . . . area

The circumference formula is ...

C = πd

Filling in the diameter, we have ...

C = π·(15 cm) = 15π cm ≈ 47.1 cm . . . circumference

5 0

4 years ago

Can someone help with my homework?

Len [333]

Answer:

1a) $-\frac{15}{4}$

1b) $\frac{95}{33}$

2a) $-84$

2b) 1

3a) $\frac{171}{550}$

3b) $4\frac{2}{7}$

Step-by-step explanation:

For the first equation, let's use $\frac{-a}{b} =\frac{a}{-b} =-\frac{a}{b}$ to right a new fraction.

Step 1- Reduce the fraction with 4.

$-\frac{\frac{12/4}{4/4} }{\frac{4}{5} } = -\frac{3}{\frac{4}{5} }$

Step 2- Simplify the complex fraction(LCD or Least Common Denominator).

$-\frac{3}{\frac{4}{5} } = -\frac{15}{4}$

An alternative form for this fraction is $-3\frac{3}{4} or -3.75$ .

For the second equation..

Step 1- Convert the mixed number to an improper fraction.

$\frac{6\frac{3}{9} }{\frac{11}{5} } = \frac{\frac{57}{9} }{\frac{11}{5} }$

Step 2- Simplify the complex fraction.

$\frac{\frac{57}{9} }{\frac{11}{5} } = \frac{95}{33}$

An alternative form for this fraction is $2\frac{29}{33} or 2.87$ .

For the third equation use $\frac{-a}{b} =\frac{a}{-b} =-\frac{a}{b}$ ...

Step 1- Simplify the complex fraction(LCD).

$-\frac{7}{\frac{1}{12} } = -84$

For the fourth equation...

Write the fraction as a division.

$\frac{12}{8}$ ÷ $\frac{3}{2}$

To divide a fraction, multiply by the reciprocal of that fraction.

$\frac{12}{8} *\frac{2}{3} = \frac{12*2}{8*3}$

Reduce the fraction with 3.

$\frac{4*2}{8}= \frac{4}{4} = 1$

For the fifth equation...

Convert the mixed number to an improper fraction.

$\frac{-1\frac{8}{11} }{-5\frac{5}{9} } = \frac{-\frac{19}{11} }{-\frac{50}{9} }$

Reduce the fraction with -1, this eliminates the negative sign.

Simplify the complex fraction.

$\frac{\frac{19}{11} }{\frac{50}{9} } = \frac{171}{550}$

An alternative form for this fraction is 0.3109.

For the sixth equation..

Write the fraction as a division.

$\frac{3}{7}$ ÷ $\frac{1}{10}$

To divide by a fraction, multiply by the reciprocal of that fraction.

$\frac{3}{7}$ ×10= $\frac{3*10}{7}$

Multiply the numbers.

$\frac{3*10}{7} = \frac{30}{7}$

Alternative form of this fraction is $4\frac{2}{7}$ or 4.285714.

Hope this helps! :)

8 0

3 years ago

2. Newton has 20 snacks for a trip. He puts them in

defon

You have to divide 20and 4 which your answer would be 5

8 0

4 years ago