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erastova [34]
2 years ago
14

How much warmer is `82°\{F}` than `-40°\{F}`?

Mathematics
2 answers:
Semmy [17]2 years ago
8 0

Answer:

124 degrees warmer

Step-by-step explanation:

i think

yarga [219]2 years ago
4 0

Answer:

It’s 122 because 80 and -40 is 122.

Step-by-step explanation:

hope this helps

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Find vector c if c=a+b (view image)<br> A. 7,6<br> B. -7,2<br> C. 0,-5<br> D. -5, 0
o-na [289]

Answer:

\vec c=

Option B

Step-by-step explanation:

<u>Sum of vectors in</u> \mathbb{R}^2

Given two vectors \vec a= and \vec b=. The sum of both vectors is:

\vec a+\vec b =

The vectors in the figure are

\vec a=

\vec b=

The sum is

\vec c=\vec a+\vec b =

\vec c=

Option B

8 0
3 years ago
Simplify the expression (4x) −4th power Write your answer using only positive exponents.
Inga [223]

Answer:

4x4x4x4

Step-by-step explanation:

I needed points

8 0
3 years ago
4 over x+4 - 2 over x+1
babymother [125]
(4/(x+4-2))/x+1

4/(x+2)=x/4+1/2

(x/4+1/2)/x+1

x=-2/5


7 0
3 years ago
Julio bought 4 pencils and 3 erasers for $0.37 and David paid $0.33 for 3 pencils and 4 erasers. What is the cost of one pencil?
nirvana33 [79]

Answer:

Each pencil costs $0.07 and each eraser costs $0.03

Step-by-step explanation:

System of linear equations

It refers to the study of systems when n variables are related in m linear equations, each one is not independent from the others. Solving such systems can be done following very diverse approaches.  

Let p=the price of each pencil while e is the price each eraser

Julio bought 4 pencils and 3 erasers, spending

4p+3e=0.37

David bought 3 pencils and 4 erasers, spending

3p+4e=0.33

The system of equations is written in the form

\left\{\begin{matrix}4p+3e=0.37\\ 3p+4e=0.33\end{matrix}\right

We'll solve it by reduction. Multiplying the first equation by -3 and the second by 4:

\left\{\begin{matrix}-12p-9e=-1.11\\ 12p+16e=1.32\end{matrix}\right.

Adding both equations:

7e=0.21  

e=0.03

Multiplying the first one by -4 and the second by 3

\left\{\begin{matrix}-16p-12e=-1.48\\ 9p+12e=0.99\end{matrix}\right.\end{matrix}\right.

Adding both equations:

-7p=-0.49

p=0.07  

Solution: Each pencil costs $0.07 and each eraser costs $0.03

7 0
3 years ago
Alex and Leonardo purchase to matinee movie tickets mantiee ticket cost $6.50 and drinks cost $5.50 and a bag of popcorn cost $6
Veseljchak [2.6K]
Cost= (5.50d+6.00p) +6.50

Coefficients: 5.50 and 6.00
Constant: 6.50
Variables: d and p
6 0
3 years ago
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