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tekilochka [14]
3 years ago
14

Find two equivalent ratios for 3:4 using multiplication A. 6:8 B.9:12 C. 6:12

Mathematics
2 answers:
Alchen [17]3 years ago
6 0

Answer:

A and B

Step-by-step explanation:

3:4 multiplied by 2 is 6:8

3x2=6 4x2=8

3:4 multiplied by 3 is 9:12

3x3=9 4x3=12

Setler [38]3 years ago
4 0
A. 6:8 And B. 9:12

Explanation for A:
If you do 3x2=6 and if you multiply 4 by 2 you get 8. So your new ratio is 6:8

Explanation for B:
If you do 3x3=9 now you multiply 4 by 3 you’ll get 12. So your new ratio is 9:12
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What ratios can we say are equivalent to 2:9?​
faust18 [17]

Answer:

4:18, 6:27, etc

Step-by-step explanation:

Basically, anything x 2 and x 9 would be equivalent as a ratio

5 0
3 years ago
Read 2 more answers
What is the value of the expression? 9^8 over 9^-4 x 9^10 (Fraction)? Please help me :)
Alchen [17]
The answer is 3^12. i'd explain it but i took me seven minutes to do the the problem myself. :)
5 0
3 years ago
0.63 x 1.8 solve with the steps to get the answer
Xelga [282]

Answer:

key the numbers into your calculator and execute the multiplication function

Step-by-step explanation:

Details vary with calculator model. Read your manual.

_____

There are many ways to work a problem of this nature by hand or in your head. The second attachment shows a couple of them.

<em>Long multiplication</em>

Essentially, every digit in one number needs to be multiplied by every digit in the other number, and the results combined according to their place value. The diagram on the left is a method that has you put the product of the top digit and the right digit into the box with "tens" and "ones" separated by a diagonal line.

After you've filled in the products of all the digits, you add them along diagonal "columns", putting the sum at the bottom or to the left. Any "carry" from the sum will add to the next "column" to the left or above. For example, the product digit 3 is arrived at by adding the 8, 2, and 3 along the diagonal. That sum results in a "carry" of 1 that gets added to the 4, 6, and 0 in the diagonal "column" above it.

As with any multiplication of decimals, the number of decimal digits in the product is the same as the total of the numbers of decimal digits in the multiplicands. (2+1=3)

<em>Mental math</em>

Both these numbers are multiplies of 9, so the product can be found different ways using that fact. The number 1.8 is 2 - 0.2, so the product can be found as ...

  0.63 × 1.8 = 0.63 × (2 -0.2) = (0.63×2) - (0.63×0.2)

  = 1.26 -0.126 = 1.134

Multiplication by 2 is easily done in your head. The subtraction of one 3-digit number from another may be a little harder to do, but is probably less work than the long multiplicatin described above.

_____

<em>Alternative mental math</em>

The product of one number and the other, as described above, is the product of each digit in one number with each digit in the other number, paying attention to place value.

With decimal points removed, the numbers are 63 and 18, and their product is ...

  6·1 × 100 + (6·8 +3·1) × 10 + 3·8

  = 600 +510 +24

  = 1110 +24

  = 1134

The the desired product is this value with the decimal point put 3 places from the right: 1.134

3 0
2 years ago
Kate is building with blocks. She needs to build a rectangular prism that is 4 meters long by 3 meters wide by 112 meters high.
Xelga [282]

9514 1404 393

Answer:

  1344 cubic meters

Step-by-step explanation:

The volume is the product of the dimensions for a rectangular prism:

  V = LWH

  V = (4 m)(3 m)(112 m) = 1344 m³

Kate needs a volume of 1344 cubic meters.

3 0
2 years ago
The length of a garden is 51 1/3 feet. One section of fencing is 3 2/3 feet long.
sveta [45]
Part A - 14 sections of fencing

Part B - 0.9165 the distance between each stake
7 0
3 years ago
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