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anastassius [24]
3 years ago
11

Write an algebraic expression marlis brothers is x years older than her marli is 12? Plz I need helppp!!!!!

Mathematics
1 answer:
Umnica [9.8K]3 years ago
4 0

Answer:

12+x

Step-by-step explanation:

This is marli- []

                     |

                    /\

Marli is 12

but lets say that Marli's brother is 5 yrs older than her just for fun

To find marli's  bro's age when her bro is 5 yrs older than her, we would add 5 and 12 right?

the same thing applies when there's a variable in place of a number

DO NOT GET CONFUSED, DO EXACTLY THE SAME THING IF THERE HAD BEEN A NUMBER INSTEAD OF A VARIABLE

so

marli's bro= 12+x

Hope This Helps!!!!!

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Cathy wants to pack 100 gifts. The packaging includes a closed box made out of cardboard. The dimensions of the box are 11cm Lon
wlad13 [49]

Answer:

10800\ \text{cm}

Step-by-step explanation:

l = Length = 11 cm

w = Width = 8 cm

h = Height = 8 cm

Perimeter of cardboard required for one box is

4(l+w+h)=4(11+8+8)\\ =108\ \text{cm}

There are 100 gifts to pack so the total amount of cardboard needed would be

108\times 100=10800\ \text{cm}

So, the minimum amount of cardboard Cathy needs to package all the gifts is 10800\ \text{cm}.

6 0
3 years ago
If f(x) = 4 – x2 and g(x) = 6x, which expression is equivalent to (g – f)(3)?
tatiyna
F(x) = 4 - x²    g(x) = 6x

(g - f)(x) = g(x) - f(x)

(g - f)(3) = g(3) - f(3)

g(x) = 6x

g(3) = 6*3 = 18

f(x) = 4 - x²

f(3) = 4 - 3² = 4 - 9 = -5

(g - f)(3) = g(3) - f(3) = 18 - (-5) = 18 + 5 = 23

 (g - f)(3) = 23
7 0
3 years ago
Solve for x in both!!!!!
zvonat [6]

Answer:

- 2(x - 2) - 4x = 3(x + 1) - 9x \\  - 2x + 4 - 4x = 3x + 3 - 9x \\ 9x - 3x - 2x - 4x = 3 - 4 \\ 9x - 9x =  - 1 \\ 0x =  - 1 \\ 0 =  - 1

So ; No solution

___o___o____

5(x + 2) - 3 = 3x - 8x + 7 \\ 5x + 10 - 3 =  - 5x + 7 \\ 5x + 7 =  - 5x + 7 \\ 5x + 5x = 7 - 7 \\ 10x = 0 \\  \\ x =  \frac{0}{10}  \\  \\ x = 0

I hope I helped you^_^

4 0
3 years ago
Read 2 more answers
In ΔQRS, the measure of ∠S=90°, RS = 53 feet, and QR = 79 feet. Find the measure of ∠R to the nearest tenth of a degree.
hodyreva [135]

Answer:

47.9

Step-by-step explanation:

6 0
3 years ago
(5+ 3)2 what is the answer​
adoni [48]

Answer:

16

Step-by-step explanation:

Use PEMDAS (Parenesis, Exponents, Mutiplication, Division, Addition, Subtraction)

Using PEMDAS we add 5+3 for it is in parenesis. We get 8 from that. Finally, we multiply 8 with 2 to get 16.

4 0
2 years ago
Read 2 more answers
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