3 years ago

2x−y=5 If x=4, then y=

Mathematics

1 answer:

jeka943 years ago

4 0

Answer:

Y = 3

Step-by-step explanation:

2(4) = 8

Subtract 8 on both sides

-y = -3

Y=3

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3) Sue bought a triangular shaped piece of wood

olga_2 [115]

Answer:

12 inches of fabric

Step-by-step explanation:

Area of a triangle = hight x base

so 6 x 2 = 12

12 inches of fabric is your answer

Hope this helps :)

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3 years ago

Reminders? The answer?

MatroZZZ [7]

Answer:

67, no remainder.

Step-by-step explanation:

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3 years ago

If 225 is the dividend and 15 is the divisor, then what is the quotient?

LuckyWell [14K]

Answer:

The answer is 15.

Step-by-step explanation:

When dividing 225 by 15 you can multiply 15 by 15 and you will get 225.

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3 years ago

Read 2 more answers

What is the product? Assume x greater-than-or-equal-to 0 (StartRoot 3 x EndRoot + StartRoot 5 EndRoot) (StartRoot 15 x EndRoot +

Nikitich [7]

Answer:

3x√5 + 6√(10x) + 5√(3x) + 10√6

Step-by-step explanation:

$(\sqrt{3x}+\sqrt{5})(\sqrt{15x}+2\sqrt{30})=\sqrt{3x}(\sqrt{15x}+2\sqrt{30})+\sqrt{5}(\sqrt{15x}+2\sqrt{30})\\\\=\sqrt{45x^2}+2\sqrt{90x}+\sqrt{75x}+2\sqrt{150}\\\\=\sqrt{5(3x)^2}+2\sqrt{10x(3)^2}+\sqrt{3x(5)^2}+2\sqrt{6(5)^2}\\\\=\boxed{3x\sqrt{5}+6\sqrt{10x}+5\sqrt{3x}+10\sqrt{6}}$

The applicable rules of roots are ...

(√a)(√b) = √(ab)

√(ab²) = b√a

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3 years ago

28 girls and 38 boys volunteer to plant trees at a school. their teacher wants to put them in groups that have girls AND boys. h

Delvig [45]

Answer:

so 14 can go into 28, 2 times and 19 can go into 38 2 times so the techaer can make 2 group with 14 girls and 19 boys in each group.

Step-by-step explanation:

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3 years ago