Solve them all? Or are these options
Answer:
4 hours, $60
Step-by-step explanation:
Assuming "d" is equal to the dollars Jacob earned and h= hours, you start by setting the equations equal to each other, since both are equal to "d."
15h=10h+20
Subtract 10h from both sides (to combine like terms) so the equation becomes:
5h=20
Divide 5 from both sides, to isolate "d" :
h=4
The number of hours Jacob worked is 4, as the equation above shows. To find the amount of money Jacob made, substitute 4 as "h" into the two original equations:
d= 15(4) d=$60
d=10(4)+20 d=$60
Jacob earned $60 dollars in 4 hours.
60 coins
30%=pennies
100-30=70% =not pennies
percent menas parts out of 100 so
70%=70/100=7/20=0.7
so we want to find 70% of 60
'of' can be translated to as multiply
0.7 times 60=42
42 coins=not pennies
Answer:
b=29.74
Step-by-step explanation:
tan b=opposite/adjacent
tan b= 4/7
b=29.74
Answer:
<h3>-8 divided by (-4)</h3>
Step-by-step explanation:
-18 divided by -9 is <u>+2</u> and that is what you want.
-18 divided by 2 is -9, not correct.
-12 divided by (-3) is +4, not correct.
-10 divided by 5 is -2, not correct.
Leaving the <em>correct</em> answer: -8 divided by (-4) is <u>+2</u>.
Remember: a negative times a negative equals a positive.
