Answer:
-6.8w = 3.4
divide both side by -6.8
the left side become w
and the right side become - 0.5
so
w = -0.5
The solution to the product of 8 and three-seventh is 2 2/7. According to Laura, she made mistake in step 2 by adding 8 and 3 instead of multiplying
Multiplication of fractions and integers
Fractions are written as a ratio of two integers. For instance a/b is a fraction where a and b are integers.
Given the following equation
Multiply 3/7 and 8
This is expressed mathematically as;
3/7 * 8
Step 1: Swap to have;
8 * 3/7
Step 2: Group the numerator
(8*2)/7
Step 3; Simplify
16/7
Step 4; Convert to mixed fraction
16/7= 2 2/7
The solution to the product of 8 and three-seventh is 2 2/7. According to Laura, she made mistake in step 2 by adding 8 and 3 instead of multiplying
Learn more on multiplication here: brainly.com/question/4721701
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Answer:
$4.60
Step-by-step explanation:
1 lb ---> 80 cents
5 3/4 lb ---> 5 3/4 * 80 cents
![5 \dfrac{3}{4} \times 80 =](https://tex.z-dn.net/?f=%205%20%5Cdfrac%7B3%7D%7B4%7D%20%5Ctimes%2080%20%3D%20)
![= \dfrac{23}{4} \times \dfrac{80}{1}](https://tex.z-dn.net/?f=%20%3D%20%5Cdfrac%7B23%7D%7B4%7D%20%5Ctimes%20%5Cdfrac%7B80%7D%7B1%7D%20)
![= \dfrac{23 \times 80}{4 \times 1}](https://tex.z-dn.net/?f=%20%3D%20%5Cdfrac%7B23%20%5Ctimes%2080%7D%7B4%20%5Ctimes%201%7D%20)
![= \dfrac{1840}{4}](https://tex.z-dn.net/?f=%20%3D%20%5Cdfrac%7B1840%7D%7B4%7D%20)
![= 460](https://tex.z-dn.net/?f=%20%3D%20460%20)
460 cents = $4.60
Answer:
-0.47
Step-by-step explanation:
Multiply both sides by 4
subtract 24r from both sides
simplify r - 24r to -23r
divide both sides by -23
two negatives make a positive
simplify 14/5/23 to 14/5 x 23
simplify 5 x 23 to 115
switch sides
Answer: r = 14/115.