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solmaris [256]
3 years ago
5

B=3/4a A+b= 21 Solve for a and b

Mathematics
1 answer:
maxonik [38]3 years ago
4 0

Answer:

A=12 B= 9

Step-by-step explanation:

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A movie theater sends out a coupon for 25​% off the price of a ticket. Write an equation for the​ situation, where y is the pric
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4 0
3 years ago
The ramp shown in the diagram has a rise of 225 cm and it makes an angle 40° with the floor.
Kazeer [188]

The length of the ramp calculated using Pythagoras is approximately 350 cm

From the diagram attached :

  • Height of ramp = opposite = 225 cm

  • Angle of inclination, θ = 40°

Using Pythagoras ; the length of the ramp can calculated as follows :

Sin θ = opposite / hypotenus

Sin 40° = 225 / hypotenus

Cross multiply

Hypotenus × 0.6427876 = 225

Divide both sides by 0.6427876 to isolate the hypotenus

Hypotenus = 225 / 0.6427876

Hypotenus = 350.03786 cm

Therefore, the length of the ramp which is the hypotenus is approximately 350 cm

Learn more : brainly.com/question/10040532

6 0
3 years ago
(Sugg<br> eous equations.<br> 3x + 2y = 12<br> 4x – y = 5
Ostrovityanka [42]

Answer:

1 × (3x + 2y = 12)

2 × (4x - y = 5)

3x + 2y = 12

+ (8x - 2y = 10)

= 11x = 22

divide both sides by the coefficient of 'x' (11)

Therefore x = 2

put (x = 2) in equation 1

3(2) + 2y = 12

6 + 2y = 12

2y = 12 - 6

2y = 6

divide both sides by the coefficient of 'y'(2)

Therefore y = 3

7 0
3 years ago
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