Answer:
Step-by-step explanation:
Let 
represent the real numbers.
For the first part, all real numbers less than or equal to 9 in algebra is 
.
For the second part, all real numbers greater than or equal to 7 in algebra is 
.
To combine both inequalities, it would become .
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Answer:
50% cause it's half of 18
Step-by-step explanation:
Answer:
1060 grams
Step-by-step explanation:
let the weight of the orange be x, then
pineapple weighs 7x, and also x + 870
equating the 2 expressions for the weight of the pineapple
7x = x + 870 ( subtract x from both sides )
6x = 870 ( divide both sides by 6 )
x = 145
The orange weighs 145 grams and the pineapple 145 + 870 = 1015 grams
Total weight of both = 145 + 1015 = 1060 grams
Answer:
Step-by-step explanation:
Set it up as fractions, Alex over Peter.
3/5 : 33/x Let x represent Peter's amount. Now find out: how do you get from 3 to 33? What times 3 equals 33? 11
What you do on the top, you must do on the bottom. If 3 times 11 equals 33, then 5 times 11 equals x. 5 times 11 equals 55, so x equals 55.
Peter will get 55. Don't forget the pound symbol.
If she needs 8 cups of flower for 4 eggs, when you could change that to needing 4 cups of flower for 2 eggs, now we know every 4 cups of flower is 2 eggs, and we already know 8 cups of flower is 4 eggs, so if we add 2 more eggs and that means 4 more cups of flower, the final answer is: 12 cups of flour is 6 eggs. To make it easier to remember, just remember if you have even numbers you can split them into pieces and just add those pieces over and over until you get it. We started with 8 cups of flour is four eggs, and if you put it to its smallest part It would be 4 cups of flower for 2 eggs, then you just have to remember how to count your 4’s and 2’s and it’s as easy as that
