All categories

2 years ago

1+4=5, 2+5=12, 3+6=21, 8+11?

1 answer:

7 0

The answer is 96.
Solution:
1+4(5) = 5
2+5(7) = 12(5+7)
3+6(9) = 21(12+9)
4+7(11) = 32(21+11)
5+8(13) = 45(32+13)
6+9(15) = 60(45+15)
7+10(17) = 77(60+17)
8+11(19) = 96(77+19).

You might be interested in

Cassie has test grades of 71, 78 and 83 on the first three tests in her

Neporo4naja [7]

Answer:

x ≥ 88

Step-by-step explanation:

In order to have at least an average of 80 after 4 tests, the sum of her scores must be at least 80 * 4 = 320 so we can write the following inequality:

71 + 78 + 83 + x ≥ 320

232 + x ≥ 320

x ≥ 88

3 0

2 years ago

Read 2 more answers

i'm so clueless 3 4 ÷ 1 5 ? A fraction bar. The top bar is labeled 1. 4 bars underneath the bar are labeled one-fourth. 5 bars u

Gnoma [55]

The answer is 3/4. I hope this helped.

8 0

2 years ago

Read 2 more answers

In New York City, it rained 2 inches in July and 4.7 inches in August. What

Phantasy [73]

The answer is 7.7 in

8 0

2 years ago

Read 2 more answers

The sum of two numbers is twelve. One number is eight less than the other. Find the numbers.

Ilya [14]

Answer:

10 and 2

Step-by-step explanation:

One number is 8 less than the other.

10+2=12

10-8=2

10+2=12

7 0

2 years ago

Read 2 more answers

F(x)=3x-8

iVinArrow [24]

What this is asking is for you to plug values into the following function: $f(x)=\frac{3x-8}{6x}$

Since the question is asking you to find $f(3)-f(1)$ , this is how you work it out:
You take the function;
$f(x)=\frac{3x-8}{6x}$
And plug the numbers indicated in for x;
$f(x)=\frac{3x-8}{6x}\\
f(3)=\frac{3(3)-8}{6(3)}\\
f(3)=\frac{9-8}{18}\\
f(3)=\frac{1}{18}\\\\
f(1)=\frac{3(1)-8}{6(1)}\\
f(1)=\frac{3-8}{6}\\
f(1)=\frac{-5}{6}\\\\
Now\ what\ you\ do\ is\ you\ subract\ f(3)\ and\ f(1).\\
f(3)-f(1)\\
f(3)-f(1)=\frac{1}{18}-\frac{-5}{6}\\
f(3)-f(1)=\frac{1}{18}-\frac{-15}{18}\\
f(3)-f(1)=\frac{1+15}{18}\\
f(3)-f(1)=\frac{16}{18}=\frac{8}{9}$
So the answer to f(3) - f(1) = $\frac{8}{9}$

6 0

2 years ago