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Eva8 [605]
3 years ago
8

Consider 5+x=n

Mathematics
1 answer:
VikaD [51]3 years ago
4 0
X must be a negative number because positive+positive=positive and negative+positive=negative.
Example- 5+-20=-15
Hope this helps.
Not to be greedy, but Can I have Brainliest?

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A road sign gives drivers information about traffic on busy highways. One sign shows 15 miles in 20 minutes. What is this speed
SIZIF [17.4K]

Answer: Speed in miles per hour is 45 mph.

Step-by-step explanation:

Since we have given that

Distance covered = 15 miles

Time taken to cover the above mentioned distance = 20 minutes

We need to calculate the speed in miles per hour ,

As we know the formula for " Speed " i.e.

Speed=\frac{Distance}{Time}

Now, we will put the value of distance and time in the above formula:

Speed=\frac{15}{20}\times 60\\\\Speed=15\times 3\\\\Speed=45\ mph

Hence, Speed in miles per hour is 45 mph.

8 0
3 years ago
Read 2 more answers
In Mrs.Hu's classroom, 4/5 of the students have a dog as a pet. Of the students who have a dog as a pet also have cat as a pet.
Travka [436]

Answer:

This problem is incomplete, we do not know the fraction of the students that have a dog and also have a cat. Suppose we write the problem as:

"In Mrs.Hu's classroom, 4/5 of the students have a dog as a pet. X of the students who have a dog as a pet also have cat as a pet. If there are 45 students in her class, how many have both a dog and a cat as pets?"

Where X must be a positive number smaller than one, now we can solve it:

we know that in the class we have 45 students, and 4/5 of those students have dogs, so the number of students that have a dog as a pet is:

N = 45*(4/5) = 36

And we know that X of those 36 students also have a cat, so the number of students that have a dog and a cat is:

M = 36*X

now, we do not have, suppose that the value of X is 1/2 ("1/2 of the students who have a dog also have a cat")

M = 36*(1/2) = 18

So you can replace the value of X in the equation and find the number of students that have a dog and a cat as pets.

5 0
3 years ago
Read 2 more answers
Find h(k+6) if h(x)=15x+6
goblinko [34]

Answer:

h(k+6) if h(x)=15x+6

h(k+6)=15(k+6)+6=15k+90+6=15k+96

4 0
2 years ago
The line inside this circle is its
Alex777 [14]
The answer will be (D)
Hope this helps
May i plz have brainliest?
6 0
2 years ago
How does 3.71 round up to 3.7​
jeka57 [31]

Answer:

Step-by-step explanation:

cuz 7 is greater then 5

3 0
3 years ago
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