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Soloha48 [4]
2 years ago
8

1,379,000,000 in scientific notation.

Mathematics
1 answer:
cestrela7 [59]2 years ago
3 0

Answer:

1.379x10^9

Step-by-step explanation:

Move the decimal 9 places to the right.

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What is 30/45 simplest form
Marysya12 [62]
\dfrac{30}{45}=\dfrac{30:15}{45:15}=\dfrac{2}{3}
5 0
3 years ago
Victoria bought a jacket in the sale which had 20% off. If it cost ?36 on sale what did it cost before the sale?
Basile [38]

Answer:

The jacket costs $45

Step-by-step explanation:

In order to find this, notice that the price of the sale represents 80% of the total cost. This is because we took 20% away with the sale. Now we can find the overall amount by dividing the sale cost by the amount it represents.

$36 / 80% = $45

7 0
3 years ago
Please help me with this.A rectangular field is
Karolina [17]
First, let's get the perimeter of the rectangle:
P=2W+2L
P=130m+210m
P=340m
Then, let's get the area of the bigger one:
A=WL
A=65m*105m
A=6825m^2

Then let's try using a rectangle with a smaller ratio:
P=100m+240m
P=340m
Then:
A=50m*120m
A=6000m^2

If you used a square:
P=170+170
P=340
A=WL
A=85^2
A=7225

There you have it. A rectangle with a smaller area with the same perimeter.
What does it show? The smaller the difference you get from width and length, the larger the area is.
5 0
3 years ago
Read 2 more answers
3. Solve - 3/5t = 15
SVEN [57.7K]

Answer:

t= - 15

Step-by-step explanation:

(-3/5)t = 15

Multiply both sides by 5:

-3t=75

Divid both sides by -3:

t=-15

7 0
2 years ago
What is the solution to the system of equations 2x-y=6 x+y=6 by using the elimination method
Karolina [17]

Add the two rows together

3x = 12

Solve for x in the above equation

x = 4

Substitute x = 4 into any of the two equations above. Let's choose the first one; 2x - y = 6

2 × 4 - y = 6

Solve for y in the above equation

y = 2

Thus,

<u>x = 4</u>

<u>y = 2</u>

8 0
3 years ago
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