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Mathematics

1 answer:

Sloan [31]3 years ago

5 0

To solve this question, you can subtract the amount of rainfall that fell in a year from the average amount of rainfall.

For this question, 38-29.777 is 8.223.

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Skylar needs $56 to buy a new video game. If he doubles the amount of money he has now, he will have enough to buy the game with

Semenov [28]

Skylar have 66 Dollars left

7 0

3 years ago

At a ceramic shop, each cup is $6.30 cheaper than each plate. If you totally spent $28.50 for 5 cups and 3 plates, what is the p

Alex Ar [27]

Let
x-------------> <span>the price of each cup
</span>y-------------> the price of each plate

we know that

5x+3y=28.50----------> equation 1
and
x=y-6.30--------------> equation 2

I substitute 2 in 1
5*(y-6.30)+3y=28.50---------> 5y-31.5+3y=28.5-----> 8y=60
y=7.5
x=y-6.3---------> x=7.5-6.3---------> x=1.2

the answer is
the price of each cup is $1.2
the price of each plate is $7.5

8 0

3 years ago

Can u please answer this question

Paha777 [63]

One Way:
We can change the mixed number to a decimal for comparing.

$1\frac{1}{4}$ m = $\frac{5}{4}$ m = 1.25 m

1.4 m    > 1.25 m
Darren   >   Luke

Darren's jump was higher by (1.4-1.25) 0.15 m

Or another way change the decimal to a fraction and the mixed to an improper fraction too.

$1\frac{1}{4}$ = $\frac{5}{4}$ (Luke)
1.4 = $\frac{7}{5}$ (Darren)
We need a common denominator to compare
$\frac{5*5}{4*5}$ (Luke)
$\frac{7*4}{5*4}$ (Darren)
$\frac{25}{20}$ (Luke)
$\frac{28}{20}$ (Darren)

$\frac{28}{20} > \frac{25}{20}$
  Darren >    Luke

By:
$\frac{28}{20}$ - $\frac{25}{20}$ = $\frac{3}{20}$
Which is also by 0.15 m
Darren jumps higher and by 0.15 m

3 0

3 years ago

Write x^2 + 6x -7 in the form (x+a)^2 +b where a and b are integers please

ANTONII [103]

Answer:

$(x + 3) {}^{2} - 16$