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3 years ago

What is the answer to -29 + 30?

Mathematics

2 answers:

kumpel [21]3 years ago

7 0

-29 + 30 can be re written as: +30 - 29

30 - 29 = 1

The answer is 1.

I hope this explains it.

Agata [3.3K]3 years ago

6 0

I hope this helps you

--29+30

+1

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Someone help mamd explain

sineoko [7]

So if 3/4 of the seats are filled, there are a few methods we can use.

The simplest method:

Just multiply 3/4 by 500, to get 1500/4, or 375.

So 375 seats are filled.

A method that can be used with harder problems and will be more efficient in those cases:

Using proportions.

You could say,

?/500 = 3/4

And then cross multiply,

500 * 3 = 4 * x (say the ? = x)

1500 = 4x

/4 /4

x = 375

So either way we get the answer, 375 seats were filled.

8 0

3 years ago

Frankie earns $5 each time he babysits his little sister. He has saved $30. Frankie wants to save $52 to buy a new skateboard. W

inessss [21]

Answer:

Frankie will need to babysit for 4.4 time.

Step-by-step explanation:

We are given the following in the question:

Money earned by Frankie each times he babysits = $5

Money saved = $30

Total money Frankie wants to save for a skateboard = $52

Amount of money to be saved =

Total amount of money Frankie wants to save for a skateboard - Money saved already

$= 52-30\\=22\$$

He needs to save $22 more.

Let x be the number of times Frankie will need to babysit.

Thus, we can write the equation:

$5x = 22\\\\\Rightarrow x = \dfrac{22}{5}\\\\\Rightarrow x = 4.4$

Thus, Frankie will need to babysit for 4.4 time.

7 0

3 years ago

Can anyone help me with number 7 and the last one and asap <br>and quicccck!

poizon [28]

Algerbratic Expression

5 0

3 years ago

Read 2 more answers

Solve the system of equations and choose the correct answer from the list of

Leya [2.2K]

Answer:

x = -19/2 y = -33/2

Step-by-step explanation:

x - (3x + 12) = 7

x - 3x - 12 = 7

-2x - 12 = 7

-2x = 19

x = -19/2

x - y = 7

-19/2 - y = 7

-y = 33/2

y = -33/2

4 0

2 years ago

A map uses a scale of 0.5 cm = 75 km<br> 50 km=__cm<br> 280 km =__cm<br> 142.5 km=__cm

SpyIntel [72]

Answer:

50km = 0.33cm

280km = 1.87cm

142.5km = 0.95cm

Step-by-step explanation:

Ratio is 0.5/75 = 1/150 cm per km

5 0

3 years ago