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navik [9.2K]
3 years ago
14

Plz help im helping my brother :)

Mathematics
2 answers:
likoan [24]3 years ago
7 0

Answer:

d

Step-by-step explanation:

Tju [1.3M]3 years ago
5 0

Answer:

B

Step-by-step explanation:

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Sandy needs to make 6 bows to put on her presents. She plans to use 18 inches of ribbon for each bow. How much ribbon does Sandy
blondinia [14]
You do 18×6 and you get 108 so the answer is 108in
7 0
2 years ago
Solve the system of equations. y = -5x + 24 y = 4x - 21 a. ( -5, -1) c. ( -1, 5) b. ( 5, -1) d. No solution
Svetlanka [38]

y = -5x + 24

y = 4x - 21

Since both of these equations are equal to Y, theyre equal to each other.

So we can make an equation with y = -5x + 24 in one side and y = 4x - 21 on the other.

-5x + 24 = 4x - 21

Now in order to get the value of x we need to isolate it in one side of the equation. We can do this by subtracting 24 from both sides of the equation:

-5x + 24 - 24 = 4x - 21 - 24

-5x = 4x - 45

Now we subtract 4x from both sides so the 4x shift to the other side

-5x - 4x = 4x - 4x - 45

-9x = -45

Finally divide both sides by -9 so x is by itself

(-9)÷(-9x) = -(45)÷(-9)

x = 5

Since we did all of this to BOTH sides of the equation, both sides are still equal to each other and the equation still is true.

Now apply x = 5 to either of the initial equations to find the value of Y

y = -5x + 24 or y = 4x - 21

(I'll do both but u only need one)

y = -5(5) + 24

y = -25 + 24

y = -1

y = 4(5) - 21

y = 20 - 21

y = -1

Either way, X is 5 and Y is -1

Answer (5, -1)

5 0
3 years ago
(4.3 x 10^-3)(2 x 10^-2) in standard form
notka56 [123]

Answer:

8.6•10^-5 or 0.000086

6 0
3 years ago
Now write the number is standard form ?
chubhunter [2.5K]

Step-by-step explanation:

(2 \times 10) + (6 \times 1) + (9 \times  \frac{1}{1000} ) \\  \\  =20 +6+ (9 \times  0.001 )  \\  \\  = 26 + 0.009 \\  \\  = 26.009

4 0
3 years ago
Read 2 more answers
What is 5x –7(2)-7(4)?
BartSMP [9]

Answer:

5x-42

Step-by-step explanation:

5x-7(2)-7(4)

5x-14-28

5x-42

8 0
3 years ago
Read 2 more answers
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