Answer:
Step-by-step explanation:
4+(7-5)2= 8 I guess
1. 42 quarts
2. 6 pounds
3. 2.008 kilometers
Answer:
39 dimes
Explanation:
From the graph:
• Total number of nickels = 9+4+7=20
,
• Total number of dimes = 7+10+9 = 26
The ratio of total nickels to total dimes = 20:26
If the total number of nickels the students donate is increased to 30, we have:
![\frac{\text{Total Nickels}}{\text{Total Dime}}\colon\frac{20}{26}=\frac{30}{x}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7BTotal%20Nickels%7D%7D%7B%5Ctext%7BTotal%20Dime%7D%7D%5Ccolon%5Cfrac%7B20%7D%7B26%7D%3D%5Cfrac%7B30%7D%7Bx%7D)
We then solve for x:
![\begin{gathered} 20x=30\times26 \\ x=\frac{30\times26}{20} \\ x=39 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%2020x%3D30%5Ctimes26%20%5C%5C%20x%3D%5Cfrac%7B30%5Ctimes26%7D%7B20%7D%20%5C%5C%20x%3D39%20%5Cend%7Bgathered%7D)
The number of dimes they should donate to keep the ratio of total nickels to total dimes the same is 39.
Can you send some answers. If not then I think $15 and $30.