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3 years ago

Mount McKinley, the highest mountain in North

1 answer:

riadik2000 [5.3K]3 years ago

4 0

Since the deepest point of Death Valley is below sea level, its altitude is negative. So, the difference between the altitudes is

$20320-(-280)$

Subtracting a negative means to add, so we have

$20320-(-280)=20320+280=20600$

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Mark's school is selling tickets to the annual dance competition. On the first day of ticket sales the school sold 4 senior tick

erica [24]

The cost of each senior ticket is $ 5 and cost of each child ticket is $ 12

Solution:

Let "a" be the price of each senior ticket

Let "b" be the price of each child ticket

On the first day of ticket sales the school sold 4 senior tickets and 4 child tickets for a to total of 68

Thus a equation is framed as:

4 senior tickets x price of each senior ticket + 4 child tickets x price of each child ticket = 68

$4 \times a + 4 \times b = 68$

4a + 4b = 68 ---------- eqn 1

The school took in 120 on the second day by selling 12 senior tickets and 5 child tickets

Similarly, we frame a equation as:

$12 \times a + 5 \times b = 120$

12a + 5b = 120 ---------- eqn 2

Let us solve eqn 1 and eqn 2

Multiply eqn 1 by 3

12a + 12b = 204 -------- eqn 3

Subtract eqn 2 from eqn 3

12a + 12b = 204

12a + 5b = 120

( - ) --------------

7b = 84

b = 12

Substitute b = 12 in eqn 1

4a + 4(12) = 68

4a + 48 = 68

4a = 20

a = 5

Thus cost of each senior ticket is $ 5 and cost of each child ticket is $ 12

4 0

3 years ago

What number can be use in the blank to make the equation true? 3x + 1 = 3x +___

MAXImum [283]

Answer:

Step-by-step explanation:

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3 years ago

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What is the estimate of 256+321

Sati [7]

The estimate would be 2+3 5+2 and 6+1 so 577 you can also just round and do 250 +300= 550 +20=570

6 0

3 years ago

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I NEED THIS DONE IN TWO HOURS :,(

Pani-rosa [81]

I hope I’m not too late. Substitute x = 4y + 5y = 2
y = 2. Substitute this value into the first equation: x + -4 x 2 = -8. So the answer is (-8,2).

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3 years ago

Suppose you can buy a box of 10 shirts for $42. How much is each shirt?

Fofino [41]

Answer:

each shirt is $4.20

Step-by-step explanation:

42/10 = 4.2

4 0

3 years ago

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