Question

Three wires are 6.5 m, 8.19 m, and 4.457 m long.



What is the total length of the wires?



Give your answer with the appropriate precision.



A.
19 m


B.
19.0 m


C.
19.1 m


D.
19.147 m

Answer 1

What is 6.5+8.19+4.457 = .... ?

Answer 2

d

Answer 3

Good job.

Answer 4

Should an estimate or the exact answer be calculated? Then do the appropriate calculation.



A charity raised money for a 6 week period. The group had a goal of collecting at least $500. They collected $69.75 in each of the first two weeks and $74.35 in each of the last four weeks. Did the charity reach it's goal?



A.


The exact answer is needed to know if the goal was reached.
$436.90 was collected.


B.


An estimate can be used to know if the goal was reached.
70• 2 + 75 • 4 = 440
At most $440 was collected.

Answer 5

We have :
(2 * 69.75)+(4*74.35)=The money they can collecting .
So if you reduce the money they want (500$)from that can answer .

Answer 6

a

Answer 7

@skinny23 plzz help

Answer 8

it is a because yes u need to add them all together and multiply them by how many weeks

Answer 9

It's A anyway, wanted to teach you how to do it.

Answer 10

:O ic sry plz go on

Answer 11

yes drew is correct

Answer 12

Should an estimate or the exact answer be calculated? Then do the appropriate calculation.



Megan had a $50 gift card for the sporting goods shop. She made 3 purchases of $6.75 each and 2 purchases of $10.50 each. How much money is left on the card?



A.
An estimate is sufficient. There is about $9.00 left on the card.


B.
The exact answer is needed. There is $8.75 left on the card.

Answer 13

Answer is B. Sorry for previous post

Answer 14

np

Answer 15

An electrician has a spool of wire 200 m long. She needs four pieces of wire measuring 42.3 m, 37.8 m, 55.6 m, and 35.7 m.



How much wire will be left on the spool after she finishes her job?



A.
20 m


B.
28 m


C.
28.6 m


D.
29.6 m

Answer 16

ok ic now

Answer 17

Well, to figure this one out we need to do some subtraction:

200 - 42.3 = 157.7 , 157.7 - 37.8 = 119.9 , 119.9 - 55.6 = 64.3 , 64.3 - 35.7 = ???

Answer 18

Oh, got it already?

Answer 19

no

Answer 20

im working on it lol

Answer 21

Okay.

Answer 22

Is it 28.6?

Answer 23

Yes, good job!