Astretch of high way that is 12 1/4 kilometers long has speed limit signs every 7/8 of a kilometer how many speed limit signs are on this stretch highway

There are 14 speed limit signs on the highway

Step-by-step explanation:

We can solve this questions by unitary methods.

∵ At every kilometers number of speed limit signs = 1

∴ At every 1 kilometer number of speed limit signs = or

∴ Then on a highway having length km or km number of speed limit signs =

= 14 speed limit signs

Therefore, there will be 14 speed limit signs on the highway.

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40