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3 years ago

Bored? Get your brain exercised with a TRICKY MATH question!

Mathematics

1 answer:

Katena32 [7]3 years ago

7 0

Answer:

$the \: answer \: i s \: 89100000 \\ to \: be \: honest \: it \: wasnt \: that \: hard$

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Complementary angles are two angles whose measures have a sum of 90 degrees. Angles x and y are complementary. The measure of an

Kryger [21]

Show me a picture of u have it so I can answer

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2 years ago

Read 2 more answers

Find the value of n in each of the following proportions.

Setler79 [48]

Answer:

Step-by-step explanation:

18/n = 21/28 You can cancel, but calculators make that unnecessary. Cross multiply

21n = 18 * 28

21n = 504 Divide by 21

n = 504 / 21

n = 24

==================

12/16 = n / 64 Cross Multiply

16n = 12 * 64

16n = 768 Divide by 16

n = 768/16

n = 48

7 0

3 years ago

Solve both by substitution method (algebra 2) and show work please -2x-7y=22 -7x-5y=-1

Alex17521 [72]

$\bf \begin{cases}
-2x-7y=22\\
-7x-5y=-1
\end{cases}\qquad \textit{let's solve the \underline{second one} for "x"}
\\\\\\
-7x-5y=-1\implies -7x=5y-1\implies x=\cfrac{5y-1}{-7}
\\\\\\
\boxed{x=\cfrac{1-5y}{7}}\impliedby \textit{now, let's substitute it in the \underline{first one}}
\\\\\\$

$\bf -2\left( \frac{1-5y}{7} \right)-7y=22\implies \cfrac{10y-2}{7}-7y=22
\\\\\\
\textit{now, let's multiply both sides by 7, to toss the denominator}
\\\\\\
7\left( \cfrac{10y-2}{7}-7y \right)=7(22)\implies 10y-2-49y=154
\\\\\\
-39y=156\implies y=\cfrac{154}{-39}\implies \boxed{y=-4}
\\\\\\
\textit{now, let's use that in the \underline{first one}}
\\\\\\
-2x-7(-4)=22\implies -2x+28=22\implies 6=2x\implies \cfrac{6}{2}=x
\\\\\\
\boxed{3=x}$

4 0

3 years ago

Parker offers to pay for 5 of his friends to play laser tag, but 3 of them don’t want to play. Parker offers to pay for 5 of his

gtnhenbr [62]

Answer: B

Step-by-step explanation:

First, you have to find how many friends are playing. This can be found in the equation 5-3. Now you multiply by six to find the cost. If you chose C, that would be incorrect, because the () you would mltilply first (30) and then subtract 3 (27). You can also think of it as finding the cost of how much all of them want to play by using the distributive property, leaving you with 30 - 18, and subtract from there to get 12.

6 0

3 years ago

Solve for d. d+ 4 = 16.21 d=

lutik1710 [3]

Answer:

d = 12.21

Step-by-step explanation:

1) Subtract 4 from both sides.

d = 16.21 - 4

2) Simplify 16.21 - 4 to 12.21.

d = 12.21

Check the answer!

⇒ d + 4 = 16.21

1. Let d = 12.21.

⇒ 12.21 + 4 = 16.21

2. Simplify 12.21 + 4 to 16.21

16.21 = 16.21

Done!

Thanks,

Eddie

8 0

1 year ago