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3 years ago

10

30 POINTS WORTH. Find the annual percent of growth (interest rate) on an account that was worth $200 in 1975 and was worth $360

in 1990. HINT: 1975 IS YEAR ZERO. What is term 0?

2 answers:

natka813 [3]3 years ago

6 0

Message me and i can help you

lana [24]3 years ago

5 0

Answer:

IT'S 2019 people!!!!!!!!1

Step-by-step explanation:

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Liam has to fill a hole in the ground that is 24 inches deep. He fills the hole at a rate of 6 inches in 30 minutes. Write a fun

kupik [55]

Answer:

The function that models the depth of the hole in feet over time in hours is $h(t) = 24 - 12\cdot t$ .

Step-by-step explanation:

According to the statement, the variable to be modelled is the depth of the hole, which decreases whereas is filled. Under the assumption that the hole is filled at constant rate, we obtain the following expression:

$h(t) = h_{o}-\frac{\Delta h}{\Delta t}\cdot t$ (1)

Where:

$h(t)$ - Current depth of the hole, measured in inches.

$h_{o}$ - Initial depth of the hole, measured in inches.

$\Delta h$ - Filled level, measured in inches.

$\Delta t$ - Filling time, measured in hours.

$t$ - Time, measured in hours.

If we know that $h_{o} = 24\,in$ , $\Delta h = 6\,in$ and $\Delta t = 0.5\,h$ , then the function that models the depth of the hole is:

$h(t) = 24 - 12\cdot t$

The function that models the depth of the hole in feet over time in hours is $h(t) = 24 - 12\cdot t$ .

6 0

3 years ago

A Ferris wheel can accommodate 45 people in 25 minutes. How many people could ride the Ferris wheel in 2 hours? What was that ra

Sliva [168]

Answer:

5400

Step-by-step explanation:

60 min=1 hour

120 min=2 hr

120 x 45=5400

4 0

3 years ago

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The price of an item has been reduced by 30%. The original price was $70. What is the price of the item now?

Jlenok [28]

Answer:

$41.25

Step-by-step explanation:

We can use this formula to solve this problem:

s

=

p

−

(

d

×

p

)

Where:

s

is the sales price: what we are solving for in this problem.

p

is the original price: $55 for this problem.

d

is the discount rate: 25% for this problem. "Percent" or "%" means "out of 100" or "per 100", Therefore 25% can be written as

25

100

.

Substituting and calculating

s

gives:

s

=

$

55

−

(

25

100

×

$

55

)

s

=

$

55

−

$

1375

100

s

=

$

55

−

$

13.75

s

=

$

41.25

8 0

4 years ago

Read 2 more answers

The area of a rectangle gets reduced by 9 sq. units,if its length is reduced by 5 units and Breadth is increased by 3 units.If w

Scilla [17]

Let the length and breadth of the rectangle be x and y.

Area of rectangle is A = xy

Therefore, the new length will be = x-5

Therefore, the new breadth will be = y + 3

So new area will be xy-9

Now the new relation will be (x+3)(y+2)=xy+67

.

Cross – multiplication method–

$\dfrac{x}{{{b_1}{c_2} - {b_2}{c_1}}} =\dfrac{y}{{{a_2}{c_1} - {c_2}{a_1}}} = \dfrac{1}{{{a_1}{b_2} - {a_2}{b_1}}} || x = \dfrac{{{b_1}{c_2} - {b_2}{c_1}}}{{{a_1} {b_2} - {a_2}{b_1}}} y = \dfrac{{{a_2}{c_1} - (c_2}{a_1}}}{{{a_1}{b_2}-{a_2}{b_1}}}\\$

$\Rightarrow \dfrac{x}{{305 - ( - 18)}} =\dfrac{y}{{ - 12 - ( - 183)}} = \dfrac{1}{{9 - 10)}}\\\$

$\Rightarrow \dfrac{x}{{323}} = \dfrac{y}{{171}} = \dfrac{1}{{19}} \\\Rightarrow x = 17, y = 9 \\$

Therefore, the length is 17 and breadth is 9.

5 0

3 years ago

Question 1.1. Choose the correct answer.

faltersainse [42]

I believe Nancy bought 45 Angelfish and 315 Goldfish. 360 / 8 = 45, 360-45=315

5 0

3 years ago

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