All categories

2 years ago

What is 30x-140-(x-4)

Mathematics

2 answers:

gladu [14]2 years ago

6 0

30x-x-144 might get you closer

Stolb23 [73]2 years ago

3 0

Answer:

x= 12.41

simplified equation= 29x-360

Step-by-step explanation:

distribute

-x+4

then combine like terms

30x-x=29x

-140 +4=-136

29x-136=0

to get x on one side of the equation

29x-360= 0

+360. +360

29x=360

29. 29

x=12.41

You might be interested in

Can someone Please help me?

aalyn [17]

Answer: The constant of proportionality is 3.5, so your answer would be B.

7 0

2 years ago

PLS HELP ASAP! Given a cone with a height of 6 cm and a base diameter of 6 cm, what is the volume of the cone? Use 3.24 for π

Sholpan [36]

Answer:

56.52 cm³

Step-by-step explanation:

$\boxed{volume \: of \: cone = \frac{1}{3} \pi {r}^{2}h }$

Diameter= 2 ×radius

Radius

= 6 ÷2

= 3cm

Height, h= 6cm

Volume of the cone

$= \frac{1}{3} (3.14)( {3}^{2} )(6)$

= 56.52 cm³

5 0

3 years ago

What is the area of a rectangle which has a perimeter of 60 m and a width of 10 m?

olga_2 [115]

Answer:

200

Step-by-step explanation:

please mark as brainliest if correct

thank you

5 0

2 years ago

Nata [24]

Answer: 15, -8

Step-by-step explanation:

$u_2=7\\u_2=u_1+r\\u_3=u_1+2r\\u_4=u_1+3r\\\\u_1+u_2+u_3+u_4=4u_1+6r=12\\u_1+r=7\\\\$

$\left \{ \begin {array} {ccc|c|c}u_1+r&=&7&-4&-6\\4u_1+6r&=&12&1&1\\\end {array} \right.\\\\\\\left \{ \begin {array} {ccc}2r&=&-16\\-2u_1&=&-30\\\end {array} \right.\\\\\\\left \{ \begin {array} {ccc}r&=&-8\\u_1&=&15\\\end {array} \right.\\\\\\Proof:\\u_1=15\\u_2=7\\u_3=-1\\u_4=-9\\sum=12\\$

6 0

2 years ago

Help on math please!

DedPeter [7]

(13•4) + (3•8) +3 = 79
The total cost is $79

6 0

3 years ago