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antoniya [11.8K]
3 years ago
7

What is 7/9 written as a decimal please explain!!

Mathematics
2 answers:
IrinaK [193]3 years ago
6 0
7/9 as a decimal is 0.777.

7/9 is basically saying 7 divided by 9.
 Since 9 doesn't at all go into 7, we have to make a decimal using long division.
So because a decimal isn't a whole number, we put 0.(blank) at the top in place of the regular number.
After, you just continue with the regular long division, but every time the divisor doesn't go into the number from the subtraction, you bring down a zero.

Sorry if this was kind of confusing!
Just watch a video on it if this didn't help.



marta [7]3 years ago
5 0
So first say the fraction to yourself and that's how it's written so it's 7/9 would be seven ninths then work it out
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Write the steps for how to use a number line to multiply a 2 digit number by 20
enot [183]
(Pretend you're multiplying 15×20)
1. Start at 0 (obviously)
2. Go 20 numbers to the left and stop (if you're drawing or writing on the number line, make a line vertically to show that's where you stopped for the first 20
3. Do this 14 more times and keep on going to the right
4 0
3 years ago
A rectangle has a perimeter of 30 feet and an area of 50 square feet. What are the dimensions of the rectangle?
REY [17]
Perimeter (p) = 2×length (l) + 2×width (w)
p = 2l+2w
area (a) = l×w, so solve for one (I'll use l):
a = l \times w \\ l =  a \div w \\ p = 2l + 2w = 2(l + w)
since p = 30, and a = 50, substitute the "a÷w" in for l in the perimeter equation:
p = 2(l + w) = 2((a \div w) + w) \\  = 2((a \div w) + ( {w}^{2} \div w)) \\  p= 2((a +  {w}^{2}) \div w
Now plug in p and a values:
p= 2((a +  {w}^{2}) \div w) \\ 30 = 2((50 +  {w}^{2}) \div w)  \\ 30 \div 2 = (50 +  {w}^{2}) \div w \\ 15w = 50 +  {w}^{2}
15w = 50 +  {w}^{2}  \\  {w}^{2}  - 15w + 50 = 0 \\ (w - 5)(w - 10) = 0
therefore width can be either 5 or 10 (but not both), so let's plug in:
l = a÷w = 50÷5 = 10
So if w = 5, then l = 10

D) 5 feet, and 10 feet
3 0
3 years ago
How do I find the area???
V125BC [204]

Answer:

option A. 36 square inches

Step-by-step explanation:

The figure is a trapezium

Area of a trapezium=1/2 *(sum of parallel sides) *height

From the diagram, the parell sides are 6 inches and 12 inches ,and the height is 4 inches.

We substitute these values into the formula.

This implies that, the area

=  \frac{1}{2}(6 + 12) \times 4

=  \frac{1}{2}(18) \times 4

=9\times 4

= 36

Thus the area is 36 square inches

4 0
4 years ago
How many liters equal 1258 cm3?
Ksivusya [100]
B.1.258, hope I helped! :)
7 0
4 years ago
Read 2 more answers
A number is greater than 50 and less than 85 the number has 13 and 3 as factors
alina1380 [7]

Answer:

The Answer is: 78.

Step-by-step explanation:

This one makes you think!

Let n = the number.

The number is greater than 50 and less than 85:

50 < n < 85

Some of the factors are 13 and 3.

So, multiply 13 * 3 = 39.

Multiply again by 2:

39 * 2 = 78.

78 can be factored as:

13 * 3 * 2 = 78, and it is greater than 50 and less than 85.

The number is 78.

Hope this helps! Have an Awesome Day!! :-)

8 0
4 years ago
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