3 years ago

Evaluate 5x (-2x 2) for x = 3.

Mathematics

1 answer:

miv72 [106K]3 years ago

7 0

Plug in 3 for x. 5(3) (-2(3) x 2) = 15(-6 x 2) = 15(-12) = -180.

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Please help me!! (Look at the photo)

maw [93]

Answer:

310in

Step-by-step explanation:

7×10=70

70×2=140(there are two that are the same length)

5×10=50

50×2=100(there are two that are the same length)

5×7=35

35×2=70(there are two that are the same length)

70+100=170

170+140=310

please let me know if it's correct

4 0

3 years ago

There are 45 vehicles in a parking lot. Three fifths of the vehicles are minivans. How many of the vehicles in the parking lot a

suter [353]

Answer: There are 27 minivans out of the vehicles in the parking lot.

Step-by-step explanation:

Since we have given that

Number of vehicles in a parking lot = 45

Part of the vehicles are minivans is given by

$\frac{3}{5}$

Number of vehicles in the parking lot are minivans is given by

$\frac{3}{5}\times 45\\\\=3\times 9\\\\=27$

Hence, there are 27 minivans out of the vehicles in the parking lot.

6 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B5%7D%20%3D%2027" id="TexFormula1" title=" \frac{x}{5} = 27" alt=" \frac{x}

LiRa [457]

X equals 135 so it’s 135/5

4 0

3 years ago

Which set of parametric equations represents the graph of the function shown?

Molodets [167]

Stupid get yo brain to work BOIIIIIJ

5 0

3 years ago

Adrian has $6.35 in dimes and quarters. The number of dimes is three more than three times the number of quarters. How many quar

Mrrafil [7]

I: 635=dimes*10+quarters*25
or shorter
635=d*10+q*25

II: d=q*3+3

Substitute II (d=3q+3) into I to replace d:
635=d*10+q*25
635=(3q+3)*10+q*25
635=30+30q+25q
605=55q
11=q

-> 11 quarters

"What expression represents the number of dimes if q represent quarters"
insert q=11 into II:
II: d=q*3+3
d=11*3+3
d=33+3
d=36

8 0

3 years ago