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2 years ago

4(2x-1)=36 How do I answer this

Mathematics

2 answers:

topjm [15]2 years ago

7 0

X = 5; 2(5) - 1 = 9. 4(9) = 36

Damm [24]2 years ago

6 0

Answer:

x=5

Step-by-step explanation:

4(2x-1)=36

first distribute

8x-4=36

add 4 to both sides

8x=40

divide both sides by 8

x=5

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A jar contains only quarters and dimes. The jar contains a total of 92 coins. The value of all the coins is 14$. How many quarte

skad [1K]

Answer:

read the explanation ya bean bag

Step-by-step explanation:

we can set up some equations

lets say that q=one quarter and d=one dime

there are 92 coins so q+d=92

for each quarter, there are 25 cents added towards the 14 dollars

for each dime, there are 10 cents added towards the 14 dollars

14 dollars is equal to 1400 cents

using all this information, we can write the following equation:

25q+10d=1400

we can simplify this to 5q+2d=280

remember that q+d=92, so let's take out the extra dimes: 3q+2(q+d)=280 or 3q+2*92=280 or 3q+184=280 or 3q=96 or q=32

there are 32 quarters, so we can subtract 32 from 92 to figure out how many dimes we have

92-32=60 dimes

6 0

3 years ago

A ball is kicked from ground level with a velocity of 20 m/s at 30 degrees above the horizontal. Determine the horizontal displa

olga55 [171]

Answer:the horizontal displacement is 34.64 meters

The maximum height is 15 meters

Step-by-step explanation:

As the ball moves from the ground at 30 degrees, it travels through a parabolic path. It can therefore be likened to a projectile. The horizontal displacement to where it lands is the range. The formula for determining range,R is

R = U^2Sin2#)/g

Where

U represents the initial velocity of the ball

g is acceleration due to gravity

# represents the angle above the horizontal.

From the information given

# = 30 degrees

U = 20 m/s

g = 10m/s^2

R = 20^2Sin2×30)/10 = (400Sin60)/20 = (400×0.8660)/10

= 34.64 meters

To determine the maximum height of the ball, H,

H = (U^2Sin^2#)/2g

H = (20^2 × Sin^2 30)/2×10

H = (400 × 0.866^2)/20 = 15 meters

4 0

3 years ago

ANSWER ASAP

Alexxx [7]

Answer:

8589 cubic meters

multiply base times height then divide by 3

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2 years ago

I need help on number two

soldi70 [24.7K]

I believe a would be on the first line.

8 0

2 years ago

What is 0.969696 repeating as a fraction?

Black_prince [1.1K]

Answer:

$\frac{32}{33}$

5 0

2 years ago