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Natali5045456 [20]
3 years ago
6

Urgent please help!!!!

Mathematics
1 answer:
34kurt3 years ago
7 0

Answer:

Step-by-step explanation:

Inequality given for Sara,

-4(2x + 4) > 8x + 64

-8x - 16 > 8x + 64

-8x - 8x > 16 + 64

-16x > 80

-x > 5

x < -5

x = -12 will be the answer.

Option (3)

Inequality for Alezandro,

7x + 20 ≥ 2(x - 15)

7x + 20 ≥ 2x - 30

7x - 2x ≥ -30 - 20

5x ≥ -50

x ≥ -10

Therefore, x = 2 is the answer.

Option (2)

For Daria,

3(x - 17) < 9(1 - 3x)

3x - 51 < 9 - 27x

3x + 27x < 51 + 9

30x < 60

x < 2

x = -6 will be the answer.

Option (1)

For Jamal,

5(x + 11) > -4(-x - 12)

5x + 55 > 4x + 48

5x - 4x > 48 - 55

x > -7

x = 10 will be the answer.

Option (4)

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3 years ago
The sum of 3 times a number and 4 is 9.
larisa [96]

Answer: x = 5/3

Step-by-step explanation:

Let the number be x

Then

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Hey please help me please help please
Airida [17]

1.

a) metres to centimetres :

multiply length by 100

b) metres to millimetres:

multiply length by 1000

c) kilograms to grams:

multiply the mass value by 1000

d) litres to millilitres :

multiply volume by 1000

2.

a) 3 m = 3× 100 = 300 cm

b) 28 cm = 28 × 10 = 280 mm

c) 2.4 km = 2.4 × 1000

= 24 × 10^-1 × 10^3

= 24 × 10^2 =2400 m

d) 485 mm =485 / 10

= 485 / 10 ^1

= 485 × 10 ^-1

= 48.5 cm

e) 35 cm = 35 / 100

= 35 /10^2

= 35 × 10 ^ -2

= 0.35 m

f) 2.4 m = 2.4 / 1000

= 24 × 10 ^-1 / 10^3

= 24 × 10^-1 × 10 ^-3

= 24 × 10 ^ -4

= 0.0024 km

g) 2495 mm = 2495 /1000

= 2495 /10^ 3

= 2495 × 10 ^-3

=2.495 m

4 0
3 years ago
The perimeter of a picture frame is 24 inches. If the width of the picture frame is 5 inches, what is the length of the picture
Zarrin [17]
L=7
2l+2w=24
2l+2x5=24
2l+10=24
2l=14
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3 0
2 years ago
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Find the quotientand remainder for 52 divided by 8?
grin007 [14]
52/8= what comes closest to 52, well 6x8=48, 7x8=56, we use 48, 52-48=4 
the quotient is 6
and the remainder is 4
4 0
3 years ago
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