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Sunny_sXe [5.5K]
3 years ago
15

Three less than a certain number is 12 less than twice the number. Find the number

Mathematics
1 answer:
just olya [345]3 years ago
5 0

Answer: 30

Step-by-step explanation:

15-3=12

15 × 2=30

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Dibuja la base de un prisma en la siguiente cuadrícula en centímetros. Elige una altura fraccionaria. Visualiza el prisma y, lue
Misha Larkins [42]

Answer:

I can't read what it says

8 0
3 years ago
Solve the system by substitution.<br> 2x + 3y = 32<br> y = x + 9
HACTEHA [7]

Answer:

x=1 and y=10 (1,10)

Step-by-step explanation:

2+30=32

10=1+9

3 0
3 years ago
I dont get this please help ​
Alika [10]

Answer:

6 x (3-2) = (6 x 3 ) - ( 6 x 1)

Step-by-step explanation:

multiply them together and find out how to distribute it.

18 - 6

(6 x 3 ) - ( 6 x 1)

8 0
3 years ago
The length of a rectangle is 5.9 cm more than 3 times the width. If the perimeter of the rectangle is 57.4cm, what are it's dime
navik [9.2K]

Answer:

l = 23 cm and w = 5.7 cm

Step-by-step explanation:

Perimeter = twice the length plus twice the width

let w = width

let l = length

l = 5.9 + 3w

57.4 = 2(5.9 + 3w) + 2w

57.4 = 11.8 + 6w + 2w

57.4 = 11.8 + 8w

45.6 = 8w

w = 5.7

Substitute 5.7 for 'w' to get 'l':

l = 5.9 + 3(5.7)

l = 23

6 0
3 years ago
Write five cubed in all three forms: exponential form, expanded form, and standard form.
AfilCa [17]

Answer:

Exponential form: 5^3

Expanded form: 5*5*5

Standard form: 125

Step-by-step explanation:

The exponential form is when we use the ^ symbol. The base is the number before the ^ and the exponent is the number after the ^. When five is cubed, the base is 5 and the exponent is 3.

Therefore, the exponential form is 5^3. We can also write it with a little 3 on the top right corner of the 5, that is 5^3.

On the expanded form we use multiplications. The exponent number tells us how many times to multiply the base number by itself. When 5 is the base and 3 the exponent, we have to multiply 3 times the number 5 by itself. That is 5*5*5.

The standard form is the result of the calculations we wrote before. The easiest way is to get it from the expanded form.

5*5*5 = 25*5 = 125

6 0
3 years ago
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