3 years ago

If a+b=6 and a-b = 4, what is the value of 2a + 3b?

Mathematics

1 answer:

elena-s [515]3 years ago

3 0

A = 5
b = 1
(2*5) + (3*1) =
10 + 3 =
13

You might be interested in

Which of the fractions are equivalent to the fraction below a.12/18. b.9/15 c.2/3. d.3\5 the fraction is 6/10

ollegr [7]

Answer:

6

=3

Step-by-step explanation:

3/5 you just need to divide

5 0

3 years ago

(PLEASE HELP ASAP!!)

AysviL [449]

I believe the answer is 21. I can tell you how I got the answer if you want.

7 0

3 years ago

Read 2 more answers

Any help? Much appreciated

natulia [17]

Answer:

$\frac{6+\sqrt{27} }{4-\sqrt{3} } = \frac{r+s\sqrt{3} }{13} \\We\ may\ multiply\ the\ numerator\ and\ denominator\ with\ (4+\sqrt{3} ).\\Hence,\\\frac{(6+\sqrt{27})(4+\sqrt{3}) }{13} = \frac{r+s\sqrt{3} }{13} \\Hence,\\24+6\sqrt{3} +4\sqrt{27} +9= r+s\sqrt{3}\\24+6\sqrt{3} +4*3\sqrt{3} } +9= r+s\sqrt{3}\\24+6\sqrt{3} +12\sqrt{3}+9 = r+s\sqrt{3}\\33+18\sqrt{3} = r+s\sqrt{3}\\Hence,\\r=33, s=18$

5 0

3 years ago

Which measure of center is shown in a box plot? A.mean B.median C.mode

Dima020 [189]

The answer would be the median because you use the box plot to find the median. its the whole point of a box plot :)

5 0

3 years ago

Read 2 more answers

Find the smallest 0 of f(x+5). X=?

d1i1m1o1n [39]

Two hundred and ninety hope i helped

4 0

3 years ago