3 years ago

If a+3b=13 and a+b=5 the value of b is

Mathematics

1 answer:

hoa [83]3 years ago

7 0

Answer:b=4

Step-by-step explanation:

You might be interested in

How much does mike charge a new customer to ship a package that weighs 50 pounds ? He chargers $40 per pound.

Vera_Pavlovna [14]

Answer:

$2000

Step-by-step explanation:

For each pound, the charge is $40. There are 50 such charges. The point of multiplication is to simplify the process of repeated addition.

... 50 × $40 = $2000

3 0

3 years ago

What percent of a circle is 3/6 of a circle

Vlad1618 [11]

50%
You have half of 6 so the percentage would be half of 100

8 0

3 years ago

Read 2 more answers

The measure of Angle E, the angle of elevation from point A to point B, is left-parenthesis 3 x plus 1 right parenthesis-degrees

Orlov [11]

Angle E and D are 46* C

6 0

3 years ago

Find the area of trapezoid JKLM. Round the answer to the nearest tenth.

maksim [4K]

from the diagram, we can see that the height or line perpendicular to the parallel sides is 8.5.

likewise we can see that the parallel sides or "bases" are 24.3 and 9.7, so

$\textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} h=height\\ a,b=\stackrel{parallel~sides}{bases}\\[-0.5em] \hrulefill\\ h=8.5\\ a=24.3\\ b=9.7 \end{cases}\implies \begin{array}{llll} A=\cfrac{8.5(24.3+9.7)}{2}\\\\ A=\cfrac{8.5(34)}{2}\implies A=144.5~in^2 \end{array}$

5 0

2 years ago

Which simplified expression represents the area of the parallelogram?

Hunter-Best [27]

A=bh

Where b is the base and h is the height

7 0

3 years ago