3 years ago

What is 3k +2 ( 5k - 3) = 7

Mathematics

1 answer:

polet [3.4K]3 years ago

3 0

Answer:

k= -0.2

Step-by-step explanation:

3+2(5k-3)=7 (original)

3+10k-6=7 (distribute 2 in (5k-3))

9+10k=7 (combine like terms 3+-6)

10k=-2 (subtract 9 on both sides to isolate k)

k=-0.2 (divide 10 on both sides to get you're answer/isolate k)

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In Ms. Craig’s class, 75% of the students are boys. There are 18 boys in the class. What is the total number of students in Ms.

topjm [15]

Answer:

Step-by-step explanation:

75% of x = 18

75/100 * x = 18 (x = total number of students)

solving

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total number of students = 24

Checking:

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3 years ago

How can you use 4×7 to find 8×7

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nalin [4]

Answer:

$160

Step-by-step explanation:

El monto total a pagar es de $350

$\dfrac{1}{7}$ es pagado por mamá

$\dfrac{2}{5}$ es pagado por el hermano mayor

La porción pagada por papá es

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Esta cantidad pagada por papá es $160.

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2 years ago

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masya89 [10]

Answer:

$\$3.9$

Step-by-step explanation:

we know that

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3 years ago