Answer:31.625
2 7/8 8 times 9 =25.875 +(2.875 times 2) =31.625
Answer:
-176
Step-by-step explanation:
to evaluate this 8² - (3 +2 x 4²)
we shall first of all obey the BODMAS rule
Remeber that
B .................... bracket open
O.................... of
D...................... division
M................... .... multiplication
A....................... addition
S.........................subtraction
= 8² - (3 +2 x 4²)
= 8²- 3( 3+2 × 16)
= 64 - 3( 5 × 16)
= 64 -3(80)
= 64 - 240
= -176
Hello.
For the first one its
<span>x = -0.2 + -0.4y
</span>Move all terms containing x to the left, all other terms to the right.
Add '-2y' to each side of the equation
.
5x + 2y + -2y = -1 + -2y
Combine like terms: 2y + -2y = 0
5x + 0 = -1 + -2y
5x = -1 + -2y
Divide each side by '5'.
x = -0.2 + -0.4y
For the second its
<span>x=<span><span>−y</span>+2</span></span>
Step 1: Flip the equation.<span><span><span>−x</span>+2</span>=y
</span>Step 2: Add -2 to both sides.<span><span><span><span>−x</span>+2</span>+<span>−2</span></span>=<span>y+<span>−2</span></span></span><span><span>−x</span>=<span>y−2
</span></span>Step 3: Divide both sides by -1.<span><span><span>−x</span><span>−1</span></span>=<span><span>y−2</span><span>−1</span></span></span><span>x=<span><span>−y</span>+2</span></span>
Have a nice day
