Answer:
A : 3n - 15 + n = 101
Step-by-step explanation:
Solution:-
- We will denote a number as "n".
- The result of 3 times itself less 15 would be:
3*itself - 15
itself = n
3*n - 15
- Then a number "n" is added to the above result:
3*n - 15 + n.
- The result of above expression is 101:
3*n - 15 + n = 101
- Option A is the correct answer
Hey there Olivia0,
The price of 3.4 pounds of apples is $0.60 per pound. How much is the total?
Answer:
1 pound = $0.60
3.4 pounds = $0.60 x 3.4
= $2.04
Hope this helps :D
<em>~Top♥</em>
Answer:
a) n = 4(n-1)+1
b) 397
c) 19900
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
Given the function
f(x) = x^3 − x + 4 in the interval [1,2]
We are to find the value of x for which f(x) = 7
Substitute f(x) = 7 into the expression as shown!
f(x) = x^3 − x + 4
7 = x^3 − x + 4
x^3 − x + 4 -7 = 0
x^3 − x - 3= 0
x^3 -x = 3
x(x²-1) = 3
x²-1 = 3 and x = 3
x² = 3+1
x² = 4
x = ±√4
x = ±2
Since x lies within the interval, [1,2] hence the value of x is 2
