B) 4/9 is correct
Mark with crown!
Step-by-step explanation:
7y = 9x-27
sub 7x = 9x-27 into 2nd eqn
45 + (9x-27) = 9x
move 9x over
18 = 9x - 9x
18 = 0
this doesn't make sense, so eqn has no solution
Answer:
x = 14/5
Step-by-step explanation:
Add 4 to both sides of the equation, Simplify, Divide both sides of the equation by the same term, simplify, to get the answer. plz give brainliest
we know that
The area of a trapezoid is given by the formula
Area=h*(b1+b2)/2
where
<span>b1, b2 are the lengths of each base
h is the altitude (height)
</span>Remember that the bases are the two parallel sides of the trapezoid. The altitude (or height) of a trapezoid is the perpendicular<span> distance between the two bases
</span> therefore
[area of trapezoid]=(11+5)*4/2--------> 64/2------> 32 cm²
the answer is 32 cm²
When you multiply it out by hand to get
2678 × 97 = 259766
you place the decimal point in the answer by counting the number of decimal places of the multiplicands.
2.678 has 3 decimal places
9.7 has 1 decimal place
The product of these numbers will have 3+1 = 4 decimal places, so will look like
B) 25.9766
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You can also get there by considering that the product is about 10×2.6, so is about 26. That will tell you the decimal point goes after the first two left-most digits.