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3 years ago

Pls it’s really importa I need help !!

Mathematics

1 answer:

e-lub [12.9K]3 years ago

7 0

Answer:

i cant see the picture clearly it is blury sorry cant help if it is like that!!!!

Step-by-step explanation:

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Which expression is equivalent to -2.8x-6.3

wariber [46]

Answer:

-0.7(4x+9)

Step-by-step explanation:

-2.8x-6.3=-0.7(4x+9)

4 0

3 years ago

How much longer is the distance from the library to the park to the train station than the distance from the library straight to

Slav-nsk [51]

Answer:

2.14

Step-by-step explanation:

2.14+3.82= 5.96

5.96-3.82= 2.14

So, your answer would be 2.14

7 0

2 years ago

The difference of the square of a number and 28 is equal to 3 times that number

Pepsi [2]

Answer:

- 4, 7

Step-by-step explanation:

Let the required number be x.

Therefore, according to the given condition:

${x}^{2} - 28 = 3x \\ {x}^{2} - 3x - 28 = 0 \\ {x}^{2} - 7x + 4x - 28 = 0 \\ x(x - 7) + 4(x - 7) = 0 \\ (x - 7)(x + 4) = 0 \\ x - 7 = 0 \: or \: x + 4 = 0 \\ x = 7 \: or \: x = - 4 \\$

5 0

3 years ago

An angle that is less than 180 degrees is acute. Always Sometimes Never

gizmo_the_mogwai [7]

Answer:

Sometimes

Step-by-step explanation:

An acute angle is an angle that measures less than 90°

So, an angle that is less than 180° is sometimes acute.

5 0

3 years ago

Read 2 more answers

7. The ratio of black cars to silver cars in a parking lot is 7:4. If there is a DIFFERENCE of 12 more black cars than silver ca

QveST [7]

Answer:

Step-by-step explanation:

Let B be the number of black cars and S the number of silver.

We know that B/S = 7/4

We also know that B - S = 12

Rearrange the first: B = 7S/4

B - S = 12

7S/4 - S = 12

7S - 4S = 48

3S = 48

S = 16

B/S = 7/4

B/16 = 7/4

4B = 112

B = 28

B + S = 44 cars

I can't add the tape diagram here, but show two ribbons (tapes) for each car color and drawn so one can see the relative numbers of each.

8 0

2 years ago