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Nutka1998 [239]
2 years ago
11

On a certain day, the temperature changed at a rate of -2O per hour. How long did it take for the change in temperature to be -1

4O?
Mathematics
1 answer:
topjm [15]2 years ago
7 0

Answer:

it took 7 hours

Step-by-step explanation:

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Add. (6x2 – 2x) + (5x – 7)
11Alexandr11 [23.1K]

Answer:

Thats going to be 12x

Step-by-step explanation:

8 0
3 years ago
A musician spends 90 minutes practicing piano and guitar the time spent is 30 minute less than twice the same time spent on guit
11111nata11111 [884]

Answer:

The which spends on the piano is( 50 minutes )

The which spends on the guitar is( 40 minutes )

Step-by-step explanation:

The steps of the solution in the above photo

I hope that is useful for you :)

8 0
3 years ago
Find the value of x such that l ⊥ m. A) 10.7 B) 16 C) 46 D) 48
dsp73

Answer:

<h3>B. 16°</h3>

Step-by-step explanation:

The diagram lacks the appropriate figure. Find the figure attached. If the line I is perpendicular to m, this means that the sum of the given angles will be equal to 90° as shown;

(3x+5)° + 37° = 90°

open the parenthesis

3x+5 + 37° = 90°

3x+42 = 90

subtract 42 from both sides of the equation

3x+42-42 = 90-42

3x = 48

Divide both sides of the resulting equation by 3;

3x/3 = 48/3

<em>x = 16</em>

<em>Hence the value of x is 16°</em>

4 0
3 years ago
What is 1 1/9 plus 3 5/8
Daniel [21]
I think the answer should be 4.7 but rounded up would be 5
6 0
2 years ago
Read 2 more answers
GEOMETRY PROOFS!
yarga [219]

From the given figure ,

RECA is a quadrilateral

RC divides it into two parts

From the triangles , ∆REC and ∆RAC

RE = RA (Given)

angle CRE = angle CRA (Given)

RC = RC (Common side)

Therefore, ∆REC is Congruent to ∆RAC

∆REC =~ ∆RAC by SAS Property

⇛CE = CA (Congruent parts in a congruent triangles)

Hence , Proved

<em>Additional</em><em> comment</em><em>:</em><em>-</em>

SAS property:-

"The two sides and included angle of one triangle are equal to the two sides and included angle then the two triangles are Congruent and this property is called SAS Property (Side -Angle-Side)

<u>also</u><u> </u><u>read</u><u> </u><u>similar</u><u> questions</u><u>:</u> Complete this proof. Given: EC AC, DB AC, ∠A = ∠F Prove: ΔMDF ∼ ΔNCA..

brainly.com/question/16250124?referrer

Consider the proof. Given: Segment AB is parallel to line DE. Prove: AD/DC = BE/EC What is the missing statement in Step 5? A.) AC = BC B.) AC/DC = BC/EC C.) AD...

brainly.com/question/11763540?referrer

4 0
2 years ago
Read 2 more answers
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