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hram777 [196]
3 years ago
6

What number adds 10 and multiplies 21

Mathematics
2 answers:
Ne4ueva [31]3 years ago
8 0
7 and 3. 7+3=10 and 7x3=21
BaLLatris [955]3 years ago
5 0
The numbers are 7 and 3.

7 + 3 = 10
7 x 3 = 21

It is easier to factor 21 than to find the addends of 10.

1, 3, 7, 21 - are factors of 21

1, 2, 3, 4, 5, 6, 7, 8, 9 - are addends of 10. Which is more numbers to consider than the factors of 21.
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If £2000 is placed into a bank account that pays 3% compound interest per yea
Len [333]

Answer:

$2120

Step-by-step explanation:

method:

3% x $2000 = 60

100%

$60 per year = $120 per year

Ans: $2120 will be in the account

4 0
4 years ago
Simplify the following expression completely using distribution and combining like terms
Katena32 [7]

Answer:

10 +11f

Step-by-step explanation:

3(4 + 2f) + 5f - 2​ =

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3 0
3 years ago
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A person places $686 in an investment account earning an annual rate of 3.8%, compounded continuously. Using the formula V = Pe^
kykrilka [37]

Answer:

V = $1213.03

Step-by-step explanation:

We can determine the amount of money after 15 years with the given formula:

V = Pe^{rt}   (1)

Where:

V: is the value of the account in t years =?

P: is the principal initially invested = $686                

r: is the rate of interest = 3.8% = 3.8/100 = 0.038

t: is the time = 15 years

By substituting the above values into equation (1) we have:

V = Pe^{rt} = 686*e^{(0.038*15)} = 1213.03  

               

Therefore, the amount of money is $1213.03.

I hope it helps you!  

6 0
3 years ago
What is the unit rate for 15 degrees in 2 hours
guajiro [1.7K]
Ok in order to get the unit rate you need to take w.e. unit you have and make it 1, so if you have 15 degrees in 2 hours and it wants you to get the unit rate you need to find the degree it will be in 1 hour so you just take 15 and divide it by 2 and your unit rate is 7.5 degrees in one hour
7 0
3 years ago
PLEASE HELP ASAP!!!!! IM CONFUSED AND GOT IT WRONG
wariber [46]

Answer:

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Step-by-step explanation:

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Area of rectangle A = 105 square meters

Area of rectangle B = 8.4 square meters

Area of the overlap = \frac{3}{25}\times (\text{Area of rectangle A})

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Area of the gym floor = 105 + 8.4 - 12.6

                                    = 100.8 square meters

Therefore, area of the gym floor is 100.8 square meters.  

4 0
3 years ago
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