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Rama09 [41]
3 years ago
7

3.)

Mathematics
1 answer:
kotykmax [81]3 years ago
5 0

Answer:

Let’s find out...

Step-by-step explanation:

21 x 13 = 273

(13 x 20) + (13 x 1) =

260 + 13 = 273

So this one matches

(21 x 10) + 213 =

210 + 213 = 423

Does not match

(30 x 13) - (9 x 13) =

390 - 117 = 273

This one matches

(20 x 10) + (1 x 3) =

200 + 3 = 203

Does not match

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Induction is kind of thinking you use to get specific answers from a general rule true or false
lyudmila [28]
I think the answer should be False! Because the induction it is not kind of thinking with using their specific answers from the general rule.

Hope it helped!
4 0
3 years ago
Read 2 more answers
Marco wants to take a taxi cab ride if the cost to ride is 7.00 with the cost per m is 0.25 per mile and mr. o can only spend 30
77julia77 [94]

Each ride has a fixed cost of 7 and a cost that increases proportionally to the distance travelled of 0.25 per mile. Therefore the total cost of the ride is:

\text{ cost(x)}=0.25\cdot x+7

Where "x" is the distance in miles. Marco can only spend 30 on his ride, therefore the cost must be less or equal to that value.

\begin{gathered} \text{ cost(x)}\leq30 \\ 0.25\cdot x+7\leq30 \end{gathered}

We can solve the linear equation by isolating the "x" variable on the left side.

\begin{gathered} 0.25\cdot x\leq30-7 \\ 0.25\cdot x\leq23 \\ x\leq\frac{23}{0.25} \\ x\leq92 \end{gathered}

Marco's travel must be shorter or equal to 92 miles.

6 0
8 months ago
Maggie spent half of the money in her savings account on a new computer.if the computer was $345, how much money was in her savi
sergejj [24]

Answer:

$690

Step-by-step explanation:

all you have to do is multiply $345 by 2 since she spent half of her money

7 0
3 years ago
Myra takes 2hours to plant 50 flower bulbs. Francis takes 3 hours to plant 45 flower bulbs. Working together, how long should it
crimeas [40]

Answer:37 and half hrs


Step-by-step explanation:


This is what I get


Myra: 50/2= 25 bulbs/hr.

Francis: 45/3= 15 bulbs/ hr


25+15= 40/hr. Together per hr

Need to find 150 bulbs how many hrs


40/1=150/t

40t=150

T= 150/4

T= 37.5


37hrs and 1/2


4 0
3 years ago
Write 14 is 7 times a number c as an equation
grin007 [14]
C=7•2=14 this should be right idk
7 0
2 years ago
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