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natka813 [3]
2 years ago
8

Write an addition equation or a subtraction equation (your choice!) to describe the diagram

Mathematics
1 answer:
Fed [463]2 years ago
8 0

Answer:  -3 + 4 = 1

==================================================

Explanation:

We start at the bottom layer.

That arrow on the bottom layer goes from 0 to -3. In short, it represents the number -3.

The upper arrow moves from -3 to +1 or simply 1. This is a distance of 4 spaces. So we add on 4.

Overall, this diagram represents -3+4 = 1

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EXPERTS/ACE/GENIUSES/TRUSTED HELPERS HELPP!!
noname [10]
Hi,

The answer to your question is either A or B. 

The y-intercept is at point (0,60). All the other options (C and D) do not make sense and just aren't logically. 

The y-intercept (0,60) literally shows that if a student studies 0 hours they can expect to score a 60 on the test. 

Thus, you're answer is option B. 


Faith xoxo
7 0
3 years ago
Read 2 more answers
The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there a
STatiana [176]

Answer:

24761 mosquitoes

5.4 days

Step-by-step explanation:

Let the equation that shows the population of the mosquitoes after x days,

A=P(1+r)^x

Where,

P = Initial population,

r = rate of increasing per day,

Here, A = 1000, when x = 0,

1000=P(1+r)^0\implies P = 1000

A = 1900 when x = 1,

1900 = P(1+r)^1\implies 1900 = 1000(1+r)\implies 1.9 = 1 + r\implies r = 0.9

Thus, the required function that represents the population after x days,

A=1900(1+0.9)^x=1900(1.9)^x

If x = 4,

The number of mosquito after 4 days,

A=1900(1.9)^4 = 24760.99\approx 24761

If A = 60,000,

60000 = 1900(1.9)^x

\frac{600}{19}=1.9^x

Taking log both sides,

\log(\frac{600}{19})=x\log 1.9

\implies x = \frac{\log(\frac{600}{19})}{\log 1.9}=5.378\approx 5.4

Thus, there will 60,000 mosquitoes after 5 days.

6 0
3 years ago
A taxi company charges $2.25 per ride plus $0.30 per mile. Enter a linear model represents the cost, C, as a function of d, the
Anna007 [38]

Answer:

C(d) = d(2.25) + m(0.3)

Step-by-step explanation:

A taxi company charges $2.25 per ride plus $0.30 per mile.

Let d represent number of rides..

Let m represent number of Miles...

Then let C represent the total cost for each ride at a specific number of Miles.

The linear model representing the cost as a function of d the total ride

C(d) = d(2.25) + m(0.3)

The values stand independently because the customer can choose a different right and a different mile.

7 0
2 years ago
Look at the number 425,690.<br><br> What is the value of the digit 2?
defon

Answer:

20,000

Step-by-step explanation:

400,000   Digit 4

 20,000   Digit 2

   5,000    Digit 5

      600    Digit 6

<u>+       90</u>     Digit 9  (And 0)

425,690

7 0
1 year ago
bob has 10 more marbles than larry. together they have a total of 29 marbles.How many marbles does larry have?
yan [13]
The answer is 19. 29-10=19
8 0
3 years ago
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