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cestrela7 [59]
3 years ago
7

Adding negative numbers Add. -7 +4=

Mathematics
2 answers:
Bezzdna [24]3 years ago
3 0

Hello!

-7 + 4 = -3

I hope this helps you! Have a lovely day!

-Mal

Leviafan [203]3 years ago
3 0

Answer:

-3

Step-by-step explanation:

On a number line, adding 4 to negative 7 gets you -3. You can also do 7-4, then add a negative sign. Hope this helps!

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A protected coastal wildfire area is surveyed and sampled for various forms of wildlife. the protected area is essentially recta
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Answer:

B. compute the area of each section that was sampled, and determine the average operation of the insect per square foot. (

3 0
3 years ago
Person A can paint the neighbors house 2 times as fast as Person B. The year A and B worked together, it took them 2 days. How l
seraphim [82]

Answer:

A can paint in 3days and B in 6 days

Step-by-step explanation:

From the question we were told

Person A can paint the neighbors house 2 times as fast as Person B

Let A only paint the neighbors house in X days

Let B only paint the neighbors house in 2X days

If we express the given information from the question in terms of fraction we have,

1/X + 1/2X = 1/2

3/2X = 1/2

if we cross multiply we have

6= 2X

X= 6/2

X= 3

Then A can paint the house in 3 days and B in 2(3)= 6days.

5 0
3 years ago
How to solve this problem 15 = 5x
Lostsunrise [7]

Answer:

x = 3 (see below)

Step-by-step explanation:

To solve for x, you need to isolate the variable to one side of the equation. To do that, you need to use reverse operations. For example, the reverse operation of subtraction is addition.

In this case, we have:

15 = 5x

5x is the same thing as 5 (x) or 5 times x. This means the reverse operation is division. So, we need to divide both sides of the equation by 5:

15 = 5x

-----   ----

5       5

--------------

3 = x

x = 3

4 0
2 years ago
Find the pressure if a force of 750 N acts on an area of 12 cm3
Leto [7]
The answer is P=F/A I had a quiz on these
5 0
2 years ago
For two events and , the probability that occurs is 0.8, the probability that occurs is 0.4, and the probability that both occur
sergey [27]

Answer:

P(B|A)=0.25  , P(A|B) =0.5

Step-by-step explanation:

The question provides the following data:

P(A)= 0.8

P(B)= 0.4

P(A∩B) = 0.2

Since the question does not mention which of the conditional probabilities need to be found out, I will show the working to calculate both of them.

To calculate the probability that event B will occur given that A has already occurred (P(B|A) is read as the probability of event B given A) can be calculated as:

P(B|A) = P(A∩B)/P(A)

      = (0.2) / (0.8)  

P(B|A)=0.25

To calculate the probability that event A will occur given that B has already occurred (P(A|B) is read as the probability of event A given B) can be calculated as:

P(A|B) = P(A∩B)/P(B)

          = (0.2)/(0.4)

P(A|B) =0.5

7 0
3 years ago
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