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yaroslaw [1]
3 years ago
12

Simplify: 5 + 2(x + 3) - 8 + 4x +

Mathematics
1 answer:
julia-pushkina [17]3 years ago
4 0

Answer:

6x+3

Step-by-step explanation:

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If lin runs 21 laps at the same rate, how long does it take her 25.6 minutes How many laps per minute is that? __ laps
Alex Ar [27]

Answer: 0.82 laps per minute

Step-by-step explanation:

Lin is running 21 laps in 25.6 minutes.

To find out her speed in laps per minute, divide the distance she has ran by the time it took her to run it.

= Distance / time

= 21 / 25.6

= 0.82 laps per minute

6 0
3 years ago
Evaluate this function at x = 2: f(x)= 3x + 20 *
trasher [3.6K]

Answer:

26

Step-by-step explanation:

Fitst,  you substitute

f(2) = 3(2) + 20

f(2) = 6 + 20

f(2) = 26

your answer is 26

5 0
3 years ago
Read 2 more answers
Solve the following system of equations by linear combination: 5x 2y = 14 y = x – 7
natta225 [31]
I would use subsitution
y=x-7
sub x-7 for every x
5x+2(x-7)=14
5x+2x-14=14
add 14 to both sides
7x=28
divide both sides by 7
x=4
sub
y=x-7
y=4-7
y=-3

x=4
y=-3
(4,-3)
4 0
3 years ago
Each person needs to rent a helmet for $5. Write the expression for the total cost for the helmets
Artyom0805 [142]

Step-by-step explanation:

you need to find out how many poeple u have first

4 0
2 years ago
Factorize 10x3y2+5x3y3-15x4y5
d1i1m1o1n [39]

Answer:

−5x^3y^2(3xy^3−y−2)

i hope this helped :D

7 0
3 years ago
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