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Tasya [4]
3 years ago
14

Which expression is equivalent to the following expression? 10x + 3(8 - 7x)

Mathematics
1 answer:
Paladinen [302]3 years ago
7 0
It is -11x + 24 because you multiply the numbers in the parentheses by 3 then collect like terms 10x +24 - 21x then you do 10x minus 24x and you get -11x+24
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Solve<br> 2(x+3)=x-4<br><br> im not sure what to do with this question
vovangra [49]

Answer:

x = -10

Step-by-step explanation:

2(x + 3) = x - 4

2x + 6 = x - 4

2x - x = -4 - 6

x = -10

3 0
3 years ago
How can you change the dimensions of the rectangle so that the ratio of the length to the width stays the same, but the perimete
Lady bird [3.3K]

Answer:

L = 62.5cm; B = 30cm

Step-by-step explanation:

P = 2 (L+W): L=25cm; W=12cm

=2 (25+12)

=50+24

P = 74cm

For a congruent rectangle with P = 185cm

A: 74 = 2 (25 + 12)

B: 185 = 2( ? + ?)

Since A/B are congruent;

185/75 = 2.5

B = 2 (2.5* (25 + 12)

= 2 ( 62.5 + 30)

= 125 + 60

= 185

Hence, B: L = 62.5cm; B = 30cm

185cm = 2 (62.5 + 30)

8 0
3 years ago
Add 350 pounds to 4 tons.<br><br> 4,350 lb.<br> 8,350 lb.<br> 4.5 tons<br> 5 tons
levacccp [35]
8,350 lb.

1 ton = 2000 lbs, 2000 x 4 = 8000 + 350 lbs = 8,350 lbs
7 0
2 years ago
A flower bed is 2 meters wide and 3 meters long. What is the area of the flower bed in square feet? Round your converted dimensi
Liula [17]
1 meter = 3.28 ft
A = L * l = 2 * 3 = 6 square meter

To tranform it into square feet: 6 * 3.28 = 19.68 sq ft

8 0
3 years ago
Read 2 more answers
Can someone please help me I really need to pass this question!!!!
shepuryov [24]

Answer:

a ≈ 5.3

Step-by-step explanation:

Using Pythagoras' theorem

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

a² + 6² = 8², that is

a² + 36 = 64 ( subtract 36 from both sides )

a² = 28 ( take the square root of both sides )

a = \sqrt{28} ≈ 5.3 ( to the nearest tenth )

6 0
3 years ago
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