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Black_prince [1.1K]
3 years ago
6

My little brother spent $5 on comic books and magazines. He bought 4 items. If comic books

Mathematics
2 answers:
Eva8 [605]3 years ago
4 0

Answer: He bought 1 magazine and 3 comic books.

Step-by-step explanation: If comic books cost $1 and magazines cost $3, the equation for the problem should look like this: 2(m) + 1(c) = 5, since you know that the brother spent $5 in total. "m" represents the number of magazines purchased while "c" represents the number of comic books purchased. If you plug in 1 for "m" and 3 for "c", the equation would be true and would equal a total of $5. Also, 1 magazine and 3 comic books would mean that the little brother did, in fact, purchase 4 items.

lesantik [10]3 years ago
3 0
POOPITY SCOOPITY POOP
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If p(x) = x2 – l and q ( x ) = 5x – 5 which expression is equivalent to (p-q) (x)?
Natali [406]

Answer:

x^2 - 5x + 4.

Step-by-step explanation:

(p - q)(x) =  x^2 - 1 - (5x - 5)

= x^2 - 5x - 1 + 5

= x^2 - 5x + 4.

7 0
3 years ago
Three security cameras were mounted at the corners of a triangular parking lot. Camera 1 was 156 ft from camera 2, which was 101
Neporo4naja [7]

Answer:

Step-by-step explanation:

Alright, lets get started.

Please refer the diagram I have attached.

Lets use cosine law for finding the angles.

cosA=\frac{b^2+c^2-a^2}{2bc}

cosA=\frac{130^2+156^2-101^2}{2*130*156}

cosA=0.7652

Taking cos inverse

A = 40.08 degrees

Similarly,

cosB=\frac{a^2+c^2-b^2}{2*a*c}

cosB=\frac{101^2+156^2-130^2}{2*156*101}

cosB=0.5597

taking cos inverse

B = 55.97 degrees

Similarly,

cosC=\frac{a^2 +b^2-c^2}{2ab}

cosC=\frac{101^2+130^2-156^2}{2*101*130}

cosC=0.1053

taking cos inverse

C = 83.95 degrees

Means angle C is the largest angles,

So, camera 3 is covering the greatest angle.   :  Answer

Hope it will help :)


6 0
3 years ago
Adam used the three fractions to make
xenn [34]
1/4 because 3 parts of the circle are coloured but 1 part is not and 3+1=4. And that leftover as a fraction is 1/4
5 0
3 years ago
How do you find change in y when given slope and change in y pls help WILL GIVE BRAINLIEST!!!​
arlik [135]

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5 0
3 years ago
The grizzly bear population in yellowstone national park in 1970 was about 270.Over the next 35 years,it increased by about 115%
yawa3891 [41]

Answer:

581

Step-by-step explanation:

<u>Population of Grizzlys</u>

1970   >>>   270

2005   >>>   115% INCREASE

We need to find 115% of 270 and increase 270 by that amount. Firstly, converting percentage to decimal (division by 100):

115/100 = 1.15

So, that would be now:

1.15 * 270 = 310.5

Increasing, we get:

270 + 310.5 = 580.5

We round to 581

In 2005, the population was about 581

3 0
3 years ago
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