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valentina_108 [34]
3 years ago
10

Which expression is equivalent to 5a+20?

Mathematics
2 answers:
abruzzese [7]3 years ago
8 0

Answer: 5(a+4)

Step-by-step explanation:

andriy [413]3 years ago
8 0

An expression that is equivalent to 5a + 20 is: 5 ( a + 4 ).

Since 5 times a equals 5a and 5 times 4 equals 20.

Therefore, 5 (a + 4) is equivalent to 5a + 20.

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Can somebody help me this math problem please correctly
Vinil7 [7]

Answer: the answer is 1.8 x 10^{-3} because their is 3 (0) on the left side and left Side is negative

8 0
3 years ago
Twice a number subtracted from four times a number added to 15
katrin2010 [14]

Answer:15=4x=2x 6x=15x=5/2x=2.5

Step-by-step explanation:

4 0
3 years ago
A photography studio charges $50 that includes a sitting fee and 6 prints. Luigi increased his order to 11 prints and paid $65.
Effectus [21]

Answer:

Sitting fee - 32$

Step-by-step explanation:

This is a system of equations(let x represent the sitting fee)

x+6y=50

x+11y=65

You want to isolate the x variable - x+6y-6y=50-6y ; x = 50-6y

Input this into the 2nd equation: 50-6y+11y=65 ; 50+5y=65

Subtract 50 from both sides. 5y=15 (Divided 5y on both sides) ; y=3

Now that y = 3 input this into any equation I choose the 1st one.

x+6(3) = 50 ; x + 18 = 50 (Subtract 18 on both sides to get x)

x = 32

Prove: 32 + 6(3) = 50 ; 32+18 = 50 ; 50 = 50 True



7 0
3 years ago
Rajini throws a die. What is the chance of her getting a number 8?​
valina [46]

Answer:

Hey there!

Step-by-step explanation:

This is ur answer...

<h2>0/6</h2>

<h3><em>She has no chance getting an 8 because 8 doesn't exist in a dice....She can get 1-6 only....</em></h3>

Hope it helps!

Brainliest pls!

Have a good day!^^

6 0
2 years ago
I need help ASAP ! Nd plz help me how to show work
Kisachek [45]

Answer:

x = -3

Step-by-step explanation:

y = -x + 2

7x + 4y = -1

Subsitution method: (Substitute y)

7x + 4(-x+2) = -1

Expand.

7x + (-4x + 8) = -1

One plus and one minus make one minus. Two plus makes a plus.

7x -4x + 8 = -1

Simplify.

3x + 8 = -1

Isolate 3x.

3x = -1-8

    = -9

Find x.

x = -9 ÷ 3

  = -3

4 0
3 years ago
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