Hadi earned $120.00 from his job yesterday. Today he expects to earn 15% less than yesterday and tomorrow he expects to earn 15% more than today. What is the combined amount Hadi expects to earn for three days

Answers

Answer 1

Answer: Yesterday Hadi earned: $120

Today he will earn: $120*85% = $102
(You times the amount yesterday by 85% because you want to find the 15% less of 100% of the amount he's earned yesterday. Therefore, to find 15% less than yesterday you multiply it by 85% (100% - 15%) )

Tomorrow he will earn: $102*115% = $117.30
(Same thing here, however you are finding 15% more than 100% today. Therefore, you multiply the amount he earned today it by 115% (100% + 15%) )

To find the amount he earns for the three days you must add the amount earned of yesterday, today and tomorrow earned from the working above.

Therefore, Hadi expects to earn:
Yesterday + Today + Tomorrow = 120 + 102 + 117.30 = $339.3

Answer 2

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Please solve these coin problems:1) James bought 80 postage stamps for which he paid $18.40. Some were 1 cent stamps and some were 33 cent stamps.how many of each kind did he buy?

2) a postal clerk sold 75 stamps for $19.90. Some were 20 cent and some were 34 cent stamps. How many of each kind did he sell?

Answers

1)
Solving from system of equations:
x- amount of 1 cent stamps
y- amount of 33 cent stamps
$\left \{ {{1*x+33*y=18,40} \atop {x+y=80}} \right.\nx=80-y\n0,01*(80-y)+0,33y=18,40\n0,8-0,01y+0,33y=18,40\n0,32y=18,40-0,8\n0,32y=17,60 /:0,32\ny=55\nx=80-55=25$
2)
x- amount of 20 cent stamops
y-amount of 34 cent stamps
From system of equations:
$\left \{ {{0,2x+0,34y=19,90} \atop {x+y=75}} \right.\nx=75-y\n0,2(75-y)+0,34y=19,90\n 15-0,2y+0 ,34y=19,90\n-0,2y+0,34y=19,90-15\n0,14y=4,90/:0,14\n y=35\nx=75-35=40$

Is 2200 divisible by 10

Answers

Answer:

220

Step-by-step explanation:

Yes, if you divide 2200 by 10 you get 220

Yes after you divide you should get 220

John is a quarterback. This year, he completed 350 passes, which is 70% percent of all the passes he's attempted this year. How many passes has John attempted this year?

Answers

Final answer:

John, after throwing 350 completions at a rate of 70%, has attempted 500 passes this year.

Explanation:

The question pertains to percentages, specifically it is asking us to find out how many passes John attempted this year if we know he completed 350 passes which represent 70%. Since 350 passes represent 70% of all the passes he attempted, we can use this information to find 100%, or total attempts. We divide 350 by 70 to find out what 1% represents, which gives us 5. Since 1% is equal to 5 passes, to find out the total (100%), we multiply 5 by 100. Which gives us 500. Therefore, John has attempted 500 passes this year.