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____ [38]
3 years ago
14

Which one is the right one? Help me please.

Mathematics
1 answer:
frez [133]3 years ago
4 0

Answer:

90 km/h

Step-by-step explanation:

To solve this problem you first need to convert minutes to hours since the unit is km/h. Doing this we get half an hour (1 hour=60 mins so you divide 30 by 60) after converting you simply divide 45 by 1/2 or .5 to get the answer.

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Will the following two equations have a solution? Explain. y = 3x + 5 y = 3x - 7
r-ruslan [8.4K]

Answer:

There is no solution because the slopes of the two lines are the same.

Step-by-step explanation:

3x + 5 = 3x - 7

-3x        - 3x             Subtract 3x from both sides

5 ≠ - 7                      No solution

If this answer is correct, please make me Brainliest!

7 0
3 years ago
Two numbers are of the ratio 3:5. If their difference is 18, find the numbers.
lozanna [386]
Est Answer: say the numbers<span> are x and y......and y being the bigger </span>number<span> ... </span>If<span> the </span>ratio<span> is 5:3, then </span>difference<span> between </span>ratio<span> = 5-3 = 2 ... Substituting this x = 5y/3 in equation x-y=</span>18<span> we </span>get<span> ... therefore x = 5 * 27/</span>3 = 5<span>*9 = 45 .... One </span>number<span> is 5 more than another. </span>their<span> sum is 53 what are the </span>two numbers<span>?</span>
5 0
3 years ago
Please help ill mark brainliest!!!
Bingel [31]

Triangle QST  is similar to triangle PQR

We are given that measure of angle SRP is 90°

Q is the point of the hypotenuse SP

Segment QR is perpendicular to PS and T is a point outside the triangle on the left of s

We need to find which triangle is similar to triangle PQR

So,

Using Angle - Angle - Angle Criterion We can say that

m∠PQR = m∠SQR  (AAA similarity)

m∠SQR=m∠SQT (AAA similarity)

Where m∠Q =90°  in ΔQST and PQR

Therefore ΔQST is similar to ΔPQR

Learn more about similarity of triangles here

brainly.com/question/24184322

#SPJ4

8 0
1 year ago
PLEASE ANSWER THIS!! 16 POINTS!<br><br> (2/3)*2 + 1/2
alexira [117]

Answer:

=7/6

Step-by-step explanation:

Join 4/3=1:7/3

7/3/2

Apply the fraction rule:=

7/3x2

Multiply the numbers=

7/6

5 0
3 years ago
Read 2 more answers
A boy jogs 250 meters in 110 seconds. What is his average speed in m/s?
babunello [35]
His average speed is 2.27 meters per second
8 0
3 years ago
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