Let the number of islands visited be x and that peninsulas be y
thus,
x+y=19
⇒y=19-x.........i
if he skydives twice in islands and thrice in peninsulas, then the total number of skydives will be:
2x+3y=45.....ii

substituting i in ii we get:
2x+3(19-x)=45
2x+57-3x=45
putting like terms together we get:
2x-3x=45-57
-x=-12
therefore
x=12
and
y=19-x=19-12=7
hence the number of islands visited was 12 and that of peninsulas was 7

3 0

3 years ago

The area of a rectangular outdoor stage has been

jeyben [28]

Answer:

c is right i think

Step-by-step explanation:

hope this helps you

3 0

3 years ago

Carl puts $1.10 in his penny bank everyday in the moth of July (31 days). His total savings was $55 at the end of June. What is

docker41 [41]

Answer:

C) About $85

Step-by-step explanation:

Please consider the complete question.

Carl puts $1.10 in his penny bank every day in the month of July (31 days). His total saving at the end of June is $55.00. What is the best estimate at the end of July?

A) about $25

B) about $115

C) about $85

D) about $66

First of all, we will round $1.10 to nearest whole number and round 31 to nearest tens as:

$\$1.10\approx \$1$