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adell [148]
3 years ago
14

Can some one help me solve for X?

Mathematics
2 answers:
Korvikt [17]3 years ago
8 0

Answer:

x = 20

Step-by-step explanation:

The two angles are complementary angles, which means they add to 90 degrees

2x+7 + 43 = 90

Combine like terms

2x+50 = 90

Subtract 50 from each side

2x+50-50 = 90-50

2x = 40

Divide each side by 2

2x/2 = 40/2

x = 20

Oliga [24]3 years ago
7 0

Answer:x=20

Step-by-step explanation:

The two angles are complementary angles, which means they add to 90 degrees

2x+7 + 43 = 90

Combine like terms

2x+50 = 90

Subtract 50 from each side

2x+50-50 = 90-50

2x = 40

Divide each side by 2

2x/2 = 40/2

x = 20

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$6,000 dollars is invested in two different accounts earning 3% and 5% interest. at the end of one year, the two accounts earned
Anettt [7]

<u>Answer-</u>

<em>$2000</em><em> were invested at 5%</em>

<u>Solution-</u>

Let x amount of money was invested at 5% and (6000-x) amount was invested as 3%

We know that,

i=\dfrac{P\cdot r\cdot t}{100}

Putting the values,

i_1=\dfrac{P_1\cdot r_1\cdot t}{100}

i_1=\dfrac{x\cdot 5\cdot 1}{100}=\dfrac{5x}{100}

And

i_2=\dfrac{P_2\cdot r_2\cdot t}{100}

i_2=\dfrac{(6000-x)\cdot 3\cdot 1}{100}=\dfrac{3(6000-x)}{100}

According to the question,

\Rightarrow \dfrac{5x}{100}+\dfrac{3(6000-x)}{100}=220

\Rightarrow \dfrac{5x+3(6000-x)}{100}=220

\Rightarrow 5x+3(6000-x)=22000

\Rightarrow 5x+18000-3x=22000

\Rightarrow 5x-3x=22000-18000

\Rightarrow 2x=4000

\Rightarrow x=2000

Therefore, $2000 were invested at 5%

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3 years ago
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mrs_skeptik [129]

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A family room is 24 feet long and 15 feet wide. How many square yards of carpet does he need ?
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Write down the fifth term of the sequence that has its nth term:
Mice21 [21]

Answer:

a) 34

b) 30

Step-by-step explanation:

so the nth term is just the position on the term, so if u want to find the 5th term you just have to substitute 5 in for n and solve!

a) 6n + 4

= 6(5) + 4

= 30 + 4

= 34          --> the 5th term for a sequence defined by 6n+4 is 34

b) n^2 + 5

= (5)^2 + 5

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= 30           --> the 5th term for a sequence defined by n^2 + 5 is 30

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3 years ago
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