4 years ago

Solve for x and y 1.45 x + 1.55y = 20 and x + y = 29.80

1 answer:

3 0

X+y=29.8
Y=29.8-x so
1.45x+1.55(29.8-x)=20 then solve for x
1.45x+46.19-1.55x=20
-0.1x=20-46.19
-0.1x=−26.19
X=26.19/0.1
X=261.9
Y=29.8-261.9
Y=−232

You might be interested in

Ugo [173]

Answer:

No, it is not an equation

Step-by-step explanation:

See attached graph:

7 0

4 years ago

alexdok [17]

Answer:

1000

Step-by-step explanation:

If a number is higher than 5 round up. If its 4 or lower round down

3 0

3 years ago

Burka [1]

When the value of x is 3, evaluate;

$8(x+2)$

Substitute for the value of x into the parenthesis;

$\begin{gathered} 8(x+2)=8(3+2) \\ 8(x+2)=8(5) \\ 8(x+2)=40 \end{gathered}$

ANSWER:

The expression equals 40 (when x = 3)

6 0

1 year ago

valentinak56 [21]

Answer: $t_9=\dfrac{1}{2^8}$

<u>Step-by-step explanation:</u>

$t_n=t_1\times r^{n-1}\\\\Given: t_1=1,\quad r=\dfrac{1}{2}\\\\\\t_9=1\times\bigg(\dfrac{1}{2}\bigg)^{9-1}\\\\\\.\quad =\large\boxed{\dfrac{1}{2^8}}$

3 0

3 years ago

-Dominant- [34]

Answer:

Step-by-step explanation:

3 odd numbers x 2 4-sided shapes = 6

4 0

3 years ago