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Alekssandra [29.7K]
3 years ago
15

What is the correct method for solving 20+4x=24

Mathematics
2 answers:
never [62]3 years ago
4 0
-20 both sides then u get 4x=4 ÷ by 4 u get 1
blsea [12.9K]3 years ago
3 0
Add 20 to 24 and divide everything by 4
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Marco wants to buy a new smartphone that costs $495, with some additional accessories. He has already saved $75. Write and solve
antoniya [11.8K]

Marco needs to save a minimum of $420 more to buy a smartphone.

<u>Explanation:</u>

Cost of a smartphone = $495

Savings = $75

Least amount of money, m that needs to be saved = ?

Additional savings, m = Total - initial savings

                              m = $495 - $75

                              m = $420

The inequality equation would be 75 + m ≥ 495

Therefore, Marco needs to save a minimum of $420 more to buy a smartphone.

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50 multiplied by 100
ra1l [238]
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7 0
3 years ago
Find the surface area of the prism. Round to the nearest tenth if necessary. please help!!
irina [24]

Answer:

72

Step-by-step explanation:

This shape is a prism; it's a 3-D shape with 6 sides. Basically, it's a box.

All 6 sides are rectangles.

Surface area means that we'll find the area of all 6 rectangles and add them up.

There's a front and back, left and right, and a top and bottom.

The area of a rectangle is length×width or base×height.



The front and back are identical.

Area = length×width

Area = 6×3 = 18

Since the front and back are the same, two of the rectangles have area = 18.



The left and right are the same:

Area = 3 × 2

Area = 6

Two faces have area = 6.

The top and bottom are the same.

Area = 6 × 2

Area = 12

Again, two faces have area = 12.

To find the total surface area, add up all 6 areas.

A =18+18+6+6+12+12

A = 72

7 0
2 years ago
The reminder when the square of any prime number greater than 3 is divided by 6 is ​
tresset_1 [31]

Answer:

(A) 1(B) 3 (C) 2(D) 4

Step-by-step explanation:

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