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densk [106]
2 years ago
12

Find the difference: 3.45 - 0.12 =

Mathematics
1 answer:
BlackZzzverrR [31]2 years ago
6 0

Answer:

3.33

Step-by-step explanation:

3.45

- 0.12

______

3.33

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The population is a Midwest industrial town decreased from 224,000 to 221,000 in just 4 years. Assuming that this trend continue
valina [46]

Answer:

227750

Step-by-step explanation:

If we assume that the rate of increase in population is linear, then in 4 years the increase in population is (224000 - 221000) = 3000.

So, the rate of increase in population is \frac{3000}{4} = 750 persons per year.

Now, we have to calculate the population of the town after an additional 5 years.

So, the population in 5 years will increase by (750 × 5) = 3750

Therefore, the population after an additional 5 years will be (224000 + 3750) = 227750. (Answer)

7 0
3 years ago
A pair of equations is shown below:
Archy [21]

Slope Intercept Form - y = mx + b

First you need the slope or m which in the first equation is 6 and in the second is 5

Next the y-intercept or b which in the first equation is -4 and in the second is -3

Here is an image of both equation plotted on a graph where the first equation is purple and the second is green

Hope this helps, if you need anything else i will edit it in :)

edit: The to lines intercept at the point (1,2)

Sorry, i wasn't completely sure what you needed i haven't done this in a while. If you still need more, I'll try to help.

4 0
3 years ago
Read 2 more answers
João gosta muito de animais de estimação e de charadas. Certo dia um amigo perguntou-lhe quantos cachorros e quantos gatos ele t
anastassius [24]

Responda:

a) 3 e 4

Explicação passo a passo:

Deixei :

Número de cães = x

Número de gatos = y

2x + 3y = 17 - - - - (1)

x - y = 1 - - - - (2)

De (2)

x = 1 + y

Coloque em (1)

2 (1 + y) + 3y = 17

2 + 2y + 3y = 17

2 + 5y = 17

5y = 17 - 2

5y = 15

y = 15/5

y = 3

x = 1 + y

x = 1 + 3

x = 4

Número de cães = x = 4

Número de gatos = y = 3

3 0
3 years ago
The area of a circular wave expands across a still pond such that its radius increases by 8cm each second. Write a formula for t
dedylja [7]

Answer:

A(t) = π(8t)²

Step-by-step explanation:

Radius of a circular wave increases by 8 cm each second.

Every second radius of circular wave so the sequence of increase in radius will be,

8, 16, 24, 32.........(8t)

Here 't' = time

Since, area of a circle = πr²

Therefore, area of the circular wave after 't' seconds since the wave begins,

A(t) = π(8t)²

4 0
2 years ago
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Give the value of x that makes this equation true.
Anuta_ua [19.1K]
The answer is C because 1 changes nothing
5 0
3 years ago
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