7h+3s=27.95 subtract 7h from both sides

3s=27.95-7h divide both sides by 3

s=(27.95-7h)/3

Then we are told:

5h+4s=23.4, using s found above makes this equation become:

5h+4(27.95-7h)/3=23.4 multiply both sides by 3

15h+4(27.95-7h=70.2 perform indicated multiplication on left side

15h+111.8-28h=70.2 combine like terms on left side

-13h+111.8=70.2 subtract 111.8 from both sides

-13h=-41.6 divide both sides by -13

h=$3.20

5 0

3 years ago

PLEASE HELP <br> ———————-

quester [9]

First substitute, then distribute, then add, then simply

5 0

3 years ago

Miles bought a 10 ounce bag of chips. He wants to know if it's really 10 ounces, so he uses a scale and makes four measurements.

photoshop1234 [79]

The weight seems like most accurate to me, even thought you didn't show me what type of measurement he took.

4 0

3 years ago