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erastova [34]
3 years ago
13

Evaluate 13+ab,when a= 2.5 and b=3.

Mathematics
2 answers:
weeeeeb [17]3 years ago
7 0
Eleventeen cus it is
Doss [256]3 years ago
6 0

Answer:

the answer is 20.5 (B)

Step-by-step explanation:

13+2.5*3

<em>=20.5</em>

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A cyclist travels 6 miles in 15 minutes. What is her average speed in mph?
Rasek [7]

Answer:

24 miles per hour

Step-by-step explanation:

A cyclist travels 6 miles in 15 minutes. What is her average speed in mph?

Step one:

given data

distance= 6 miles

time= 15 minutes

convert minutes to hours

15 minutes is 0.25hours

Step two:

speed= distance/time

speed= 6/0.25

speed= 24 miles per hour

3 0
3 years ago
4. Find the value of k, if x = 2, y=1 is a solution of the equation 2x + 3y=k.​
icang [17]

Answer:

k=7

Step-by-step explanation:

first, plug in the given values

2x+3y=k --> 2(2)+3(1)=k

-->4+3=k

-->7=k

k=7

3 0
3 years ago
Solve (x − 2) = 3<br> Give your solutions correct to 3 significant figures.
Pachacha [2.7K]

Answer:

(x − 2) = 3

Remove the bracket

x - 2 = 3

Group the constants at one side of the equation

x = 2 + 3

x = 5

Therefore x = 5.00 to 3 significant figures.

Hope this helps

6 0
4 years ago
What is the nth term rule of the linear sequence below?<br> 7, 9, 11, 13, 15, ...<br> Tn = 0
Alekssandra [29.7K]

Answer:

the best number is 17 cuz the sequence is to add 2 sooo it's 17 then 19

5 0
3 years ago
Read 2 more answers
Tina uses a $50 gift certificate to buy a pair of pajamas for 17.97 a necklace for 25.49 and 3 pairs of socks that each cost the
Furkat [3]
The overall cost is $50.33. you now subtract out the prices you know. The easiest way to do that is to add them up; 17.97+25.49. That is 43.46.

The next step is to subtract 43.46 from 50.33. 50.33-43.46=6.87. That is the price of all the pairs of socks put together.

to find out how much one pair is, you then divide 6.87 by 3. That is 2.29.

The answer is $2.29

I hope this helps!
3 0
4 years ago
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