Question

i need biiig help ! i will post question when someone willing is going to help. it looks like a long thing but its really not. the actual question is short. anyone up for the challenge ?

Answer 1

ill help

Answer 2

Tony and Belinda have a combined age of 56. Belinda is 8 more than twice Tony’s age. How old is each?
Salisbury High School decided to take their students on a field trip to a theme park. A total of 150 people went on the trip. Adults pay $45.00 for a ticket and students pay $28.50 for a ticket. How many students and how many adults went to the park if they paid a total of $4770?
Your piggy bank has a total of 46 coins in it; some are dimes and some are quarters. If you have a total of $7.00, how many quarters and how many dimes do you have?
Follow the 5 steps below to complete this problem.
Step 1
Pick a friend or family member to be the character of your word problem. This friend or family member may do one of the following:
Drive a boat
[[Drive a jet ski]]
Step 2:
Select a current speed of the water in mph. 50 mph
Step 3:
Select the number of hours that your friend or family member drove the boat or jets ski against the current speed you chose in step 2. 1 hour
Step 4:
Select the number of hours that your friend or family member made the same trip with the current (this should be a smaller number, as your friend or family member will be traveling with the current). 40 mph
Step 5:
Write out the word problem you created and calculate how fast your friend or family member was traveling in still water. Round your answer to the nearest mph.

Answer 3

you should post one at a time, il address the first one.
Tony and Belinda have a combined age of 56. Belinda is 8 more than twice Tony’s age. How old is each?

let x be tonys age, and y be belindas age, so their combined ages:

(1) x+y=56

and belinda is 8 more than twice his age meaning:
(2) y=2x +8


now isolate in equation (1), isolate either variable, i chose x:
x=56-y

substitute it into (2)

y=2(56-y)+8

solve for y (belindas age), then knowing y, find x using any of the previous equations ie. (1) or (2)

Answer 4

okay i was with ya until the last part. are u asking me to tell u the answer, 1 or 2, or is that the rest of it ? and yeaa sorry im in a hurry and didnt think of that.

Answer 5

they're asking you for their ages, so y will be belindas age and x will be tonys.

solve for y, y=2(56-y)+8

then plug y into (1) x+y=56 or (2) y=2x +8

(so that you only have one unknown)

then find x

Answer 6

@aaronq ????

Answer 7

they're asking you for their ages, so y will be belindas age and x will be tonys.

solve for y, y=2(56-y)+8

then plug y into (1) x+y=56 or (2) y=2x +8

(so that you only have one unknown)

then find x

Answer 8

i set it up for ya, but haven't solved for the answer thats your job

Answer 9

okay but idk how to plug in y. ill plug it into (1) can u tell me how and ill do it and tell u what i get ?

Answer 10

solve for y, it will be a number, lets say 4 (this is an example not the answer)

then plug it into (1) x+4 =56, find x

Answer 11

i dont know how. -___- do i multiply ? add ? divide ? what ?

Answer 12

you don't know how to solve this y=2(56-y)+8?

Answer 13

not at all. sorry.

Answer 14

do i use pemdas ?

Answer 15

yes

Answer 16

i got y = 120

Answer 17

lol do you think belinda is 120 years old? hint: their ages have to add up to 56, remember? haha

y=2(56-y)+8
expand bracket
y=112-2y+8
bring 2y to other side
2y+y=112+8
add up y's and number
3y=120
isolate y
y=120/3
y=40

Answer 18

oh im a fail :/

Answer 19

haha it's okay, you just gotta practise

Answer 20

i will. so is there more to do ?

Answer 21

yep, since you know the value of y, you can use it in any of the previous equations to find x.
(1) x+y=56
x+40=56

what is x?

Answer 22

x+40=56

Answer 23

yes, solve for x