MATHEMATICS HIGH SCHOOL

I need some help pretty please!

Answers

Answer 1

Answer:

Answer:

Number & Cost($)

Feet & Yards

Step-by-step explanation:

Number & Cost:

(2, 38), (4, 76) <====== pick any two point to find constant

constant = (y₂ - y₁) / (x₂ - x₁)

= (76 - 38) / (4 - 2)

= 38 / 2

= 19 <====== k the constant

y = kx

y = 19x

point (2, 38): 38 = 19(2) ===> 38 = 38

point (4, 76): 76 = 19(4) ===> 76 = 76

point (7, 133): 133 = 19(7) ===> 133 = 133

point (9, 171): 171 = 19(9) ===> 171 = 171

Feet & Yards:

(27, 9), (75, 25) <====== pick any two point to find constant

constant = (y₂ - y₁) / (x₂ - x₁)

= (25 - 9) / (75 - 27)

= 16 / 48

= 1/3 <====== k the constant

y = kx

y = 1/3x

point (3, 1): 1 = 1/3(3) ===> 1 = 1

point (12, 4): 4 = 1/3(12) ===> 4 = 4

point (27, 9): 9 = 1/3(27) ===> 9 = 9

point (75, 25): 25 = 1/3(75) ===> 25 = 25

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Two different websites offer the same watch for sale. The watch costs $45 on both sites. The site, Watches for Less charges a shipping fee of 4% of the cost of the watch. The site, Tick Tock charges 2.5% of the cost of the watch for shipping. How much less will the total cost of the watch be if purchased from Tick Tock?Round your answer to the hundredths place.
Two different websites offer the same watch for sale. The watch costs $45 on both sites. The site, Watches for Less charges a shipping fee of 4% of the cost of the watch. The site, Tick Tock charges 2.5% of the cost of the watch for shipping. How much less will the total cost of the watch be if purchased from Tick Tock?

Round your answer to the hundredths place.

Answers

Answer:

$0.67

Step-by-step explanation:

Cost of Watch on both sites=$45

Watches for Less charges a shipping fee of 4% of the cost of the watch.

Therefore, total cost of the watch at Watches for Less

=$45+(4% of 45)=45+(0.04 X 45)

=45+1.8

=$46.8

Tick Tock charges 2.5% of the cost of the watch for shipping.

Therefore, total cost of the watch at Tick Tock

=$45+(2.5% of 45)=(45+0.025X45)

=45+1.13

=$46.13

Difference In Cost

Cost at Watches for Less-Cost at Tick Tock

=$46.8-46.13

=$0.67

The total cost of the watch will be $0.67 less if purchased from Tick Tock

On a trip, the fare was 75¢ for each adult and 50¢ for each child. If 20 passengers paid $12.00, how many adults and children went?Which of the following equations could not be used to solve the problem?
A) 75x+50(20-x)=1200
B) 75(20 - x) + 50x = 1200
C) 75x + 50x = 20(1200)

Answers

There are two cases in which this question can be answered. In our first case, let the number of adults be x and that of the children, 20 - x. On the second case, we let x be the number of children and 20 - x for adults. In the first case, the total fare may be expressed as 50x + 75 (20 - x) = 1200 and 75x + 50 (20 - x) = 1200. The expression in the first case is in letter b and the second case in letter a. Therefore, the answer for this item is letter c.

Answer:

letter c

Step-by-step explanation:

On a certain day, the company took 92 people on whale watching trips. There were 40 children aged 12 and under, of which some children were under three years. If x represents the number of children under three years, which equation can be used to find the value of x, where C represents the total amount of money collected from tickets that day? (92 − x)36 + (92 − 40) ⋅ 48 = C
(40 + x)36 + (92 − (40 + x)) ⋅ 48 = C
(92 + x)36 + (92 − (40 + x)) ⋅ 48 = C
(40 − x)36 + (92 − 40) ⋅ 48 = C

Answers

If x represents the number of children under three years, which equation can be used to find the value of x, where C represents the total amount of money collected from tickets that day is (40 + x)36 + (92 − (40 + x)) ⋅ 48 = C

Answer:

(40 + x)36 + (92 − (40 + x)) ⋅ 48 = C

Step-by-step explanation:

A furniture company makes large and small chairs. A small chair takes 30 minutes of machine time and 75 minutes of labor to build. A large chair takes 40 minutes of machine time and 80 minutes of labor to build. The company has 57 hours of labor time and 26 hours of machine time available each day. How many of each type of chair is built in a day?

Answers

Let the number of large chairs be x and small chairs be y
40x + 30y = 26 x 60 = 1,560 . . . . (1)
80x + 75y = 57 x 60 = 3,420 . . . . (2)

(1) x 2 => 80x + 60y = 3,120 . . . . (3)

(2) - (3) => 15y = 300 => y = 300/15 = 20

From (2), 80x + 75(20) = 3,420 => 80x + 1,500 = 3,420 => 80x = 3,420 - 1,500 = 1,920 => x = 1,920/80 = 24

Therefore, the company should produce 24 large chairs and 20 small chairs.

$A(x)=3^2$ If 81 came out, what was dropped in?
I have rewritten the problem to $3^x=81$ but do not know how to solve it.

Answers

It is good equation. Look, that:
81 = 3 x 3 x 3 x 3 = 3^4.
So you have to solve:
3^x = 3^4
exponents have to be the same, so
x=4
That's mean that A(4) = 81

$A(x)=3^x=81\n3^x=81\n3^x=3^4\nx=4$

Write the recursive function for this sequence.
8, 12, 18, 27

Answers

8, 12, 18, 27

12 ÷ 8 = 1¹/₂
18 ÷ 12 = 1¹/₂
27 ÷ 18 = 1¹/₂

$a_(n) = r * a_(n - 1)$
$a_(n)} = 1(1)/(2)a_(n - 1)$

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