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3 years ago

Help me with the 3 of them

Mathematics

1 answer:

nekit [7.7K]3 years ago

6 0

41) 10/12, 20/24, 40/48

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Subtract 2x – 15x + 6 from 5x + 23x - 4

bagirrra123 [75]

Answer:

Step-by-step explanation:

8 0

3 years ago

mina [271]

Answer:

Step-by-step explanation:

A. 2 meters to centimeters

1 m = 100 cm

$2 m = 2 \times 100 \\2 m = 200 cm = 2 \times 10^2$

B)108 centimeters to meters

100 cm =1 m

$1 cm = \frac{1}{100} m \\108 cm = \frac{108}{100}=108 \times 10^{-2} m$

C)2.49 meters to centimeters

1 m = 100 cm

$2.49 m = 2.49 \times 100 = \frac{249}{100} \times 100 = 249 cm$

D)50 centimeters to meters

100 cm = 1m

$1 cm = \frac{1}{100} m \\50 cm = \frac{50}{100}= 5 \times 10^{-1} m$

E)6.3 meters to centimeters

1 m = 100 cm

$6.3 m = 6.3 \times 100=\frac{63}{10} \times 100 = 630 cm$

F)7 centimeters to meters

100 cm = 1 m

$1 cm = \frac{1}{100} m\\\\7 cm = \frac{7}{100} = 7 \times 10^{-2} m$

a)4 meters to millimeters

1 m = 1000 mm

$4 m = 4000 = 4 \times 10^3 mm$

b)1.7 meters to millimeters

1 m = 1000 mm

$1.7 m = 1.7 \times 1000= \frac{17}{10} \times 1000=17 \times 10^2 mm$

3 0

3 years ago

Solve for x and y:<br>x = <br>y =

ICE Princess25 [194]

Answer:

x = 15

y = 21

Step-by-step explanation:

*triangle sum theorem*

(6x - 11)° + (81)° + (x + 5)° = 180°

(7x - 6)° + (81)° = 180°

(7x)° + (75)° = 180°

(7x)° = (105)°

x = 15

________________

*vertical angle theorem* *triangle sum theorem*

(6x - 11)° + (4y - 18)° + (y + 14)° = 180°

(79°) + (4y + y) + (14 - 18)°

_________________________

(79)° + (5y - 4)° = 180°

(5y)° + (75)° = 180°

(5y)° = 105°

y = 21

5 0

3 years ago

4) How much interest does a $276 investment earn at 9% over seven<br> years?"<br> 2

Mice21 [21]

Answer: 24.84

Step-by-step explanation: 276%of 9 is 24.84

4 0

3 years ago

Solve 2 3/4a=19 1/4

melamori03 [73]

2 3/4a=19 1/4
÷2 3/4 ÷2 3/4
a=1/7

8 0

3 years ago

Read 2 more answers