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serious [3.7K]
3 years ago
9

Please help me:) Thanks!

Mathematics
2 answers:
34kurt3 years ago
8 0
I think the first one
Angelina_Jolie [31]3 years ago
6 0
What is the question for the first one?
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Flying lessons on weekdays cost m dollars per hour. Flying lessons on weekends cost 1.2m dollars per hour. The expression 9m+3(1
lbvjy [14]

Answer:

The cost of lesson for 9 hours on weekdays and 3 hours on weekends

Step-by-step explanation:

Given

Weekdays = \$m /hour

Weekends = \$1.2m/hour

Required

What does 9m + 3(1.2m) represent

The expression can be split to:

9m and 3(1.2m)

<u>For 9m:</u>

From the question, we understand that:

m = 1\ hour

Multiply both sides by 9

9 * m = 1\ hour * 9

9 m = 9\ hours

This means that:

9m = the cost of lessons for 9 hours on weekdays

<u>For 3(1.2m):</u>

From the question, we understand that:

1.2m = 1 \ hour

Multiply both sides by 3

3 * 1.2m = 1 \ hour * 3

3(1.2m) = 3 \ hours

This means that:

3(1.2m) = the cost of lessons for 3 hours on weekends

Hence, the expression represents:

The cost of lesson for 9 hours on weekdays and 3 hours on weekends

7 0
3 years ago
Please help with problems 4 through 6
Kamila [148]
4. I think 4 is 128
16x16=256 and divide that by 2 and its 128
7 0
3 years ago
Does the order in which you add two integers with the same sign affect the sum
andrey2020 [161]
 when you add two negatives its just like regular number, -3+-5=-8 same as 3+5=8
8 0
4 years ago
Read 2 more answers
Okay so this is a weird one... if I take a medication twice a day for 9 months how many days have I taken that medication??? I h
Delvig [45]

Answer: 273 days i believe

Step-by-step explanation:

jan: 31 days

feb: 28 Days

mar: 31

apr: 30

may: 31

june: 30

july: 31

aug: 31

sept: 30

add all the days together to get 273

7 0
3 years ago
fie abc un triunghi cu masura unghiului a de 90 de grade ab este 6 cm bc=10 si ca=8 calculati;sin b; tg b; sin c; tg c; cos b; c
lions [1.4K]
SinB = cosC = AC / BC = 8/10 = 4/5;
tgB = ctg C = AC/AB = 8/6 = 4/3, because we use T. Pitagora for calculating AB;
sinC = cosB = AB/ BC = 6/10 = 3/5;
tgC = ctgB = AB/ AC = 6/8 = 3/4.

6 0
3 years ago
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