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IrinaK [193]
2 years ago
6

Please help me with this question thank you !!

Mathematics
1 answer:
krok68 [10]2 years ago
8 0
The correct answer is B. 3 + 7 = 10 and (3 x 3) + 1 = 10
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in 10 minutes a heart beats 700 time how many minutes will a heart beat 140 times? At what rate can a heart beat?​
posledela

Answer:

A heart will beat 140 times in 2 minutes

Step-by-step explanation:

700 ÷ 10 = 70

140 ÷ 70 = 2

5 0
3 years ago
Helppppp pleaseeeeeeeeeeeeeeeeeeeee
tiny-mole [99]

Answer:

Communicative property is the third one second one is assositave  and first one is distributive

Step-by-step explanation:

4 0
3 years ago
If a/\2+1/a/\2=11, then a+1/a=?
Nadya [2.5K]

Answer:

\pm \sqrt{13}

Step-by-step explanation:

\bigg(a +  \frac{1}{a}  \bigg)^{2} =  {a}^{2}   +  \frac{1}{ {a}^{2} }  + 2 \times a \times  \frac{1}{a}  \\  \\ \bigg(a +  \frac{1}{a}  \bigg)^{2} = 11 + 2 \\  \\   \bigg(a +  \frac{1}{a}  \bigg)^{2} = 13 \\  \\  \bigg(a +  \frac{1}{a}  \bigg) =  \pm \sqrt{13}

5 0
3 years ago
What’s the answer for this I need help
Rama09 [41]

Answer:

18 ft^2

Step-by-step explanation:

4 x 4 = 16

4 x 1 = 4

4 / 2 = 2

16 + 2 = 18 ft.^2

4 0
3 years ago
Read 2 more answers
C) Parbati buys a mobile for Rs 6,300 and sells it to Laxmi at 15% profit. How much
Leni [432]

Answer:

Rs. 7245

Step-by-step explanation:

Given parameters:

Cost price  = Rs. 6300

Percentage profit  = 15%

Unknown:

Selling price = ?

Solution:

If profit is made on a trade, the selling price is higher than the cost price.

 Profit  = Selling price  - Cost price

To find the selling price simply;

  Selling price  =( 1 + \frac{15}{100})  x cost price

  Selling price  = 1.15 x 6300  = Rs. 7245

6 0
3 years ago
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