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77julia77 [94]
2 years ago
10

I WILL GIVE BRAINLY HELP ME PLSSS

Mathematics
2 answers:
Gnom [1K]2 years ago
3 0

Answer:

I believe (D)

Step-by-step explanation:

-5x + 7 = -13

-7 -7

-5x = -20

-5/-5 -20÷-5

x=4

Ganezh [65]2 years ago
3 0

Answer:

D.) x = 4

Step-by-step explanation:

-5x + 7 = -13

-5x + 7 (-7) = -13 (-7)

-5x = -20

-5x (-1/5) = -20 (-1/5)

x = 4

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2 times 2 and three forths
Mrrafil [7]
2 *       2 and 3/4.

2 and 3/4 =   (4*2 + 3) / 4 = (8 + 3) / 4 =   11 / 4

2 * 11/4 =   22 / 4 =   5 and 2/4

= 5 and 2/4  or   5 and 1/2 or   5.5

Hope this helps.
6 0
3 years ago
Solve this problem. A number c decreased by 9 is less than or equal to 20. Find c.
Lady_Fox [76]
So c-9 is less than or equal to 20 so c is less than or equal to 29. So the correct answer is c. Hope this helps :)
5 0
3 years ago
Jeffrey plans to rent a beach house for sister's birthday and will use the savings to pay for it the company charges to $25 clea
balu736 [363]
He will be using $85 for all of that
5 0
3 years ago
Un edificio proyecta una sombra de 7.5m.mientras que un arbol que mide 1.6 m de altura proyecta una sombra 1.85 M¿Cual es la alt
sattari [20]

Answer: The height of the building is 6.49 meters.

Step-by-step explanation:

This can be translated to:

"A building projects a 7.5 m shadow, while a tree with a height of 1.6 m projects a shadow of 1.85 m.

Which is the height of the building?"

We can conclude that the ratio between the projected shadow is and the actual height is constant for both objects, this means that if H is the height of the building, we need to have:

(height of the building)/(shadow of the building) = (height of the tree)/(shadow of the tree)

H/7.5m = 1.6m/1.85m

H = (1.6m/1.85m)*7.5m = 6.49m

The height of the building is 6.49 meters.

5 0
2 years ago
ASAP PLEASE <3A rectangular garden has length and width as given by the expressions below. Length: 4 − 7(3x + 4y) Width: 3x(−
creativ13 [48]

Answer:

  • 8 - 42x - 56y - 12xy

Step-by-step explanation:

<u>Given sides of a rectangle</u>

  • Length: l =4 − 7(3x + 4y)
  • Width: w = 3x(−2y)

<u>Perimeter of rectangle</u>

  • P = 2(l + w)

<u>Using the given values</u>

  • P = 2( 4- 7(3x + 4y) + 3x(-2y)) =
  • 2( 4 - 21x - 28y - 6xy) =
  • 8 - 42x - 56y - 12xy
4 0
2 years ago
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