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MA_775_DIABLO [31]
2 years ago
9

What is 3k-1=7k+2 please help me find the answer

Mathematics
2 answers:
dybincka [34]2 years ago
8 0
3k-1=7k+2
    +1      +1
 3k=7k+3
-7k  -7k
-4k=3
divide each side by -4
/-4    /-4

k=-3/4
or
k=-.75

Arada [10]2 years ago
8 0
Let's solve your equation step-by-step.
3
k
1
7
k
2
Step 1: Subtract 7k from both sides.
3
k
1
7
k
7
k
2
7
k
4
k
1
2
Step 2: Add 1 to both sides.
4
k
1
1
2
1
4
k
3
Step 3: Divide both sides by -4.
4
k
4
3
4
k
3
4
Answer:
k
3
4

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Answer:

<h2>$ 22200 in higher yielding bank and $ 44400 in lower yielding bank</h2>

Step-by-step explanation:

       Jolene invests in two bank accounts. The first account gives a 4% interest per year and the second bank gives a 10% interest rate per year.

       She puts twice as much in the lower yielding bank account. Let us denote the amount put in high yielding bank account by x. Lower yielding bank account will have 2x.

       Interest\text{ }per\text{ }year=Principal\times Interest\text{ }rate

Interest from lower yielding bank = \dfrac{4}{100} \times 2x=\dfrac{8x}{100}

Interest from higher yielding bank = \dfrac{10}{100} \times x=\dfrac{10x}{100}

Total Interest per year = $ 3996 = \dfrac{8x}{100} +\dfrac{10x}{100}=\dfrac{18x}{100}

x=22200 \$

∴ Jolene invested $ 22200 in higher yielding bank and $ 44400 in lower yielding bank.

4 0
3 years ago
What is the value of 5-8×(7-15+8)
salantis [7]

Answer:

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Step-by-step explanation:


6 0
2 years ago
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Step-by-step explanation:

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4 0
3 years ago
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x²-6x=0

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8 0
3 years ago
Use parallelogram ABCD. What are the values of x and y?<br><br> x = <br> y =
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Answer:

x = 17 and y = 10

Step-by-step explanation:

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So AB = CD and AD = BC

so

3x - 9 = 42

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and

4y - 3 = 37

4y = 40

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Answer

x = 17 and y = 10

6 0
3 years ago
Read 2 more answers
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