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2 years ago

The variables x and y are directly proportional, and y=4 when x=9. What is the value of y when x=18?

Mathematics

2 answers:

mezya [45]2 years ago

8 0

Answer:

The value of y is 20 when x = 15 i think

Step-by-step explanation:

alexandr402 [8]2 years ago

5 0

Answer:

Step-by-step explanation:

Y=4 when x=9

X=18---> y=8

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Use the order operations 27+6(2X2-1) 4x2-5

Andrei [34K]

27+6(2*2-1)4*2-5
2*2=4
27+6(4-1)4*2-5
4-1=3
27+6(3)4*2-5
6*3=18
27+(18)4*2-5
18*4=72
27+(72)*2-5
72*2=144
27+(144)-5
27+144+171
171-5=166

So the answer is 166.

5 0

3 years ago

, Hayley sold 20 tickets to the school play for a total of $225 early bird tickets were $10 and regular price tickets were $15 w

Lady_Fox [76]

Answer:

15 early tickets were sold and 5 regular tickets were sold.

Step-by-step explanation:

Let x be the number of early bird tickets sold and y be the number of regular tickets sold.

Total number of tickets sold = 20

Thus, we can write the equation,

$x + y = 20$

Cost of early bird ticket = $10

Cost of regular tickets = $15

Total cost = $225

Thus, we can write the equation,

$225 = 10x + 15y$

We solve the equation by elimination method by multiplying first equation by 10 and subtracting.

$10x + 15y-(10x+10y) = 225 - 200\\5y = 25\\\Rightarrow y=5\\x + 5 = 20\\\Rightarrow x = 15$

Thus, 15 early tickets were sold and 5 regular tickets were sold.

5 0

3 years ago

What expression has the same value of 22+(-32)

Ivahew [28]

Answer:

-10

Step-by-step explanation:

as the -32 is in bracket so we must look at it first. then the (-) is multiplied with the + outside bracket which is +×(-)=- . so it will be plus i.e. 22-32 and final step subtract it. the answer is -10.

4 0

3 years ago

Say you have 50k and you spend 73% of it how much do you have left

Vadim26 [7]

50k is the same as 50,000

73% = 73/100 = 0.73

Multiply 50,000 with 0.73

50,000 x 0.73 = 36500

You spend $36500.

Subtract 36500 from the total

50,000 - 36,500 = $13,500

$13,500 is the amount of money you have left.

hope this helps

6 0

2 years ago

Read 2 more answers

A white tailed deer can sprint up to 30 miles per hour. American bison can run at speeds up to 3,520 feet per minute. Which anim

mario62 [17]

Answer:

The American bison is 10 miles per hour faster. It can run at 40 miles per hour.

Step-by-step explanation:

See the picture for the conversion. I used unit multiplies to change feet to miles and seconds to minutes.

4 0

1 year ago