Help help help help help plz

Mathematics

2 answers:

denis-greek [22]2 years ago

8 0

2 (5x + 4/2) = 7(2)
10x + 8/ 2 = 14
10x + 8 = 14 x 2
10x + 8 = 28
10x = 28 - 8
10x = 20
x = 20/10
x = 2

sweet-ann [11.9K]2 years ago

7 0

Answer:

22 1/2

Step-by-step explanation:

try it

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4 multiple ( 2+3) square 2

shtirl [24]

Answer:

100

Step-by-step explanation:

4 x (2 + 3) $^{2}$

for this equation u have to use PEMDAS so u have to solve the parenthesis first which is 5 then exponets which is $5^{2}$ which is 25 and 24 x 4 gives you 100

hope this helps, if im wrong sorry

7 0

2 years ago

Read 2 more answers

Two gears are connected and are rotating simultaneously. The smaller gear has a radius of 4 inches, and the larger gear has a ra

pychu [463]

Draw a diagram to illustrate the problem as shown below.

When the smaller gear rotates through a revolution, it sweeps an arc length of
2π(4) = 8π inches.

Part 1
The same arc length is swept by the larger gear. The central angle of the larger gear, x, is
7x = 8π
x = (8π)/7 radians = (8π)/7 * (180/π) = 205.7°

Answer: 205.7° (nearest tenth)

Part 2
When the larger gear makes one rotation, it sweeps an arc length of
2π(7) = 14π inches.
If the central angle for the smaller gear is y radians, then
4y = 14π
y = 3.5π radians = (3.5π)/2π revolutions = 1.75 revolutions

Answer:
The smaller gear makes 1.75 rotations