Answer:
imm a bit sorry I could only answer the international one as the national is equal to international place value system
Step-by-step explanation:
eight hundred ninety three thousand four hundred fifty one
hth tth th h t o
8 9 3 4 5 1
I hope you understand
Answer:
x=7
Step-by-step explanation:
x=7
12 - x = 5
12 - 7 = 5
Sorry it took me so long. You’re going to use multiplication to find acts in the situation both of these equations
Answer:
D. 5
Step-by-step explanation:
Heather runs 5 miles in 1 hour.
average speed = distance/time = 5 miles / 1 hour = 5 miles per hour
Answer: D. 5
Let x be the number of months.
The first plan is 15 dollars sign up fee and 38 dollars per month. So the equation is 38x + 15.
The second plan is 78 dollars as sign up fee and 31 dollars per month. So the equation is 31x + 78.
We need find when x has the same value in both equations, so we do their equality:
38x + 15 = 31x + 78
Let's subtract 15 from both sides
38x + 15 = 31x + 78
38x + 15 - 15 = 31x + 78 - 15
38x = 31x + 63
Now let's subtract 31x from both sides to have the variables on a side and the numbers on side:
38x = 31x + 63
38x - 31x = 31x - 31x + 63
7x = 63
Divide both sides by 7 to have the variable x on a side and its value on the other:
(7x)/7 = 63/7
x = 9
So at month 9, the 2 plans will cost the same.
Let's check our answers, and let y be the cost:
y = 38x + 15 = 38*9 + 15 = 357
y = 31x + 78 = 31*9 + 78 = 357
Our answer has been approved.
Hope this helps! :D