3c + 5t = 39....multiply by -3
9c + 7t = 63
----------------
-9c - 15t = - 117 (result of multiplying by -3)
9c + 7t = 63
---------------add
- 8t = - 54
t = -54/-8
t = 6.75 <=== tables are 6.75
3c + 5t = 39
3c + 5(6.75) = 39
3c + 33.75 = 39
3c = 39 - 33.75
3c = 5.25
c = 5.25/3
c = 1.75 <=== 1.75 per chair
Ms. Rochelle would have 4 groups of 6 students, then there would be a group of 5 students.
In the given problem, the
numerical value of 805, which is in the tens place, we can first elaborate and
clearly specify the order of numbers by using the expanded form:
<span><span>1. </span><span> 800 = eight
hundred / hundreds</span></span>
<span><span>2. </span><span> 0 = zero / tens</span></span>
<span><span>3. </span><span> 5 = five / ones
</span></span>
Conclusively the tens value of
the number is zero or none, since zero is not a real number then it can’t be
considered but nevertheless, the value is 0 expressed with respect to the whole
numbers.
Answer:
D and E
Step-by-step explanation:
Using the rule of radicals
⇔ ![\sqrt[n]{a^{m} }](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Ba%5E%7Bm%7D%20%7D)
Given
= (![\sqrt[7]{3}](https://tex.z-dn.net/?f=%5Csqrt%5B7%5D%7B3%7D)
)^4 → D or
= ![\sqrt[7]{3^{4} }](https://tex.z-dn.net/?f=%5Csqrt%5B7%5D%7B3%5E%7B4%7D%20%7D)
= ![\sqrt[7]{81}](https://tex.z-dn.net/?f=%5Csqrt%5B7%5D%7B81%7D)
→ E
Answer:
She will donate $1.60.
Step-by-step explanation:
Divide 8 and 0.5 a=to get 16.
Then multiply $0.10 and 16 to get 1.6.
So, her mom will donate $1.60.
