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2 years ago

PLZ HELP!! I NEED ASAP

Mathematics

1 answer:

cupoosta [38]2 years ago

8 0

Step-by-step explanation:

Let x be sister

equation = (x + 2x) = 36

= x = 36/3

= x = 12

kim is 2 times his sisters age so his age is 12×2 = 24

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liberstina [14]

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3 years ago

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3 years ago

Solve the system by substitution. 4x+3y=5x=4y+6Options: A. The solution is ____B. There are infinitely many solutions. C. There

zvonat [6]

So we have the following system of equations:

$\begin{gathered} 4x+3y=5 \\ x=4y+6 \end{gathered}$

We need to solve it by substitution. This means that we have to take the expression for x given by the second equation and replace x with it in the first equation:

$\begin{gathered} 4x+3y=5 \\ 4\cdot(4y+6)+3y=5 \\ 16y+24+3y=5 \\ 16y+3y=5-24 \\ 19y=-19 \\ y=-\frac{19}{19}=-1 \end{gathered}$

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So we have x=2 and y=-1 which means that there's one solution. Then the correct answer is A and the solution is (2,-1).

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1 year ago

I WILL GIVE BRAINLIEST Given: BFCE, AB perpendicular to BE, DE perpendicular to BE,

mars1129 [50]

Answer:

Step-by-step explanation:

From the given picture,

∠ABE = ∠DEF = 90° [Since, AB and DE are perpendicular to DE]

m∠ECA = m∠BFD [Given]

m∠ECA + m∠ACB = 180° [Liner pair of angles]

m∠BFD + m∠DFE = 180° [Liner pair of angles]

m∠ACB + m∠ECA = m∠BFD + m∠DFE [Transitive property]

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2 years ago

If you sleep 33% in a day, how many hours is that?

strojnjashka [21]

We know that
one day is equal to $24 hrs$
so
$33$ % of the day is equal to
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the answer is
$7.92 hrs$

5 0

3 years ago

Read 2 more answers