3 years ago

Dan invests £6800 into his bank account.

Mathematics

1 answer:

Irina-Kira [14]3 years ago

6 0

£6800 times (1.05)to the power of 6
=£9112.65

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The sum of two numbers is 44. One number is 3 times as large as the other. What are the numbers?

jok3333 [9.3K]

Your numbers are 11 and 32

We know that:
a + b = 44
and
a = 3b

If we substitute “3b” in for a in the first equation, we get a numerical value for b

3b + b = 44
4b = 44
b = 11

Then we substitute the numerical value of b to solve for a:
a = 3b
a = 3(11) = 33

8 0

2 years ago

If x + 3(2x-5) = 6 then x =<br> O<br> -3<br> 3<br> O 15<br> O Option 4<br> O-14

Ronch [10]

Step-by-step explanation:

$x + 3(2x - 5) = 6 \\ x + 6x - 15 = 6 \\ 7x = 6 + 15 \\ 7x = 21$