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Svetlanka [38]
3 years ago
8

7.9x - 2 - 3.2x - 10 = 2.8 + x

Mathematics
1 answer:
inysia [295]3 years ago
4 0

Answer:

x=4

Brainlist please!

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Four aces in a row, then three red face cards in a row, then a red card.
Anarel [89]

Answer:

whats the question

Step-by-step explanation:

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7 0
3 years ago
3. What is the slope of a line that passes<br> through (0,-5) and (8,27)?
Elden [556K]

Answer:

4.

Step-by-step explanation:

Slope = difference in y coordinates / difference in the corresponding x coordinates

(27 - (-5)) / (8 - 0)

= 32 / 8

= 4.

6 0
3 years ago
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Find the value of this expression: <br> 0.4(0.6+3.2)÷2
Verizon [17]
The answer to this question is 2.1
7 0
3 years ago
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Angelica is currently 13 years old she is 2 years older than her brother. Write an equation to represent the situation.Solve ur
sdas [7]

Answer:

Therefore,

x+2=13 .......Equation

Angelica's Brother's age is 11 years old.

Step-by-step explanation:

Given:

Let the current age of Angelica's Brother be 'x' years old

Angelica's current age is 13 years old,

According to given condition,

Therefore the Equation will be,

x+2=13

On solving this equation we get

x=13-2=11\\\\x=11\ years

Therefore,

Angelica's Brother's age is 11 years old.

Therefore,

x+2=13 .......Equation

Angelica's Brother's age is 11 years old.

6 0
4 years ago
Guys i need help with this and be serious about it because i had some people put answers like i don't know and gibberish words i
sveta [45]

Answer:

18 dimes, 12 quarters

Step-by-step explanation:

We are to solve the system of linear equations for D and Q, where D is the number of dimes and Q is the number of quarters.

Each dime is worth $0.10 and each quarter $0.25.  Thus, D dimes are worth ($0.25/dime)D and Q quarters ($0.25/quarter)Q.

The sum of D and Q comes out to 30 coins, a mixture of dimes and quarters:  D + Q = 30, so Q = 30 - D.  

Now let's solve this equation:  ($0.10/dime)D + ($0.25/quarter)Q = $4.80.

Substitute 30 - D for Q:

($0.10/dime)D + ($0.25/quarter)(30 - D) = $4.80

This is now entirely in D (no Q shows up).  Performing the indicated multiplication, we get 0.10D + 0.25(30) - 0.25D = 4.80

Combining like terms:  0.10D - 0.25D = -0.15D, and -7.5 + 4.80 = -2.7

Thus, -0.15D = -2.70, and so D = 2.70/0.15 = 18 (There are 18 dimes.)

Since Q = 30 - D, and D - 18, Q = 30 - 18 = 12 (There are 12 quarters)

8 0
3 years ago
Read 2 more answers
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