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Likurg_2 [28]
3 years ago
11

The temperature on a Christmas morning was -7 degrees celsius. Three hours later the temperature dropped 5 degrees. Then by noon

, the temperature rose 9 degrees, but by night fall it dropped again 12 degrees. What was the temperature by night fall?
Mathematics
1 answer:
saul85 [17]3 years ago
7 0

Answer:

-15 degrees celsius

Step-by-step explanation:

-7 - 5 + 9 - 12 = - 12 - 3 = -15

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the perimeter of a rectangle is 18 inches what are the possible lengths and widths if the side lengths are whole numbers
Sveta_85 [38]

The perimeter is (2 lengths) + (2 widths).  Since the perimeter is 18 inches, (1 length) + (1 width) must add up to 9 inches.

If the length and the width must both be whole numbers, the only possible choices for the side lengths of this rectangle are:

1 x 8 in

2 x 7 in

3 x 6 in

4 x 5 in .

8 0
4 years ago
Please I need your help desperately what is the area of this triangle? See attached image thank you so much
Rama09 [41]

To find the area of the given traingle we have to draw perpendicular from point 'J' which meets the x axis at point (2,0) and let us named it 'P'.

As we know that area of triangle is


[tex] = \frac{1}{2}\times b \times h [\tex]


Here base 'b' will be LK and height 'h' will be JP

Here,

LK= 4 units JP=4 units


Area ={1}{2} *(4)*(4)

On solving the equation we get,

Area=8 Sq units

7 0
3 years ago
Solve for W. Simplify answer.<br><br> -3=2(w-5)+5w<br><br> W=?
kherson [118]
First, distribute the 2
-3 = 2w - 10 + 5w

Combine like terms
-3 = 7w - 10

Add 10 to both sides
7 = 7w

Divide by 7 on both sides
1 = w

So, w = 1
4 0
3 years ago
Help me pls
salantis [7]

Answer:

They can get 60 sweatshirts or 45 jackets

Step-by-step explanation:

1440/24 for sweatshirts and 1440/32 for jackets.

6 0
3 years ago
Read 2 more answers
Solve
Aleonysh [2.5K]

Answer:

no solution

Step-by-step explanation:

distribute the -5 to the parenthesis

-5w + 20 < -5w - 15

move all the numbers on right and variables on left

20 + 15 < 0

35 < 0

no solution

8 0
3 years ago
Read 2 more answers
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