9 x 15 = ( 9 x 9) + (9 x 15)
Answer:
8. False.
11 and 13 are consecutive prime numbers, but 11 + 13 = 24 and 24 isn't prime.
9. True.
10. True.
11. True
12. False.
13. True.
Answer:
10(10)
Step-by-step explanation:
Answer:
520 loaves
Step-by-step explanation:
First, let's find how many white loaves he baked.
Let's make a proportion.
white loaves/brown loaves= white loaves/brown loaves
He baked 3 white loaves for every 2 brown loaves. He baked x white loaves for 208 brown loaves.
3/2=x/208
Now, we have to solve for x. To do this, we have to get x by itself. x is being divided by 208. To reverse this, multiply both sides by 208
208*3/2=x/208*208
208*3/2=x
312=x
He baked 312 white loaves.
Now, we have to find the total number of loaves he baked.
To do this, add the brown loaves and the white loaves.
brown loaves+white loaves
He baked 208 brown loaves and 312 white loaves
208+312
520
He baked 520 loaves in total
Answer:
27 in²
Step-by-step explanation:
The area (A) is calculated as
A = πr² ( r is the radius ) , then
A = π × 3² = 3 × 9 = 27 in²
