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2 years ago

Julie needs at least $123 to buy a pair of shoes. She has saved $56 and earns $8 weekly for completing

Mathematics

1 answer:

Nataliya [291]2 years ago

6 0

Answer:

It will take 9 weeks

Step-by-step explanation:

56 + 8x $\geq$ 123

8x $\geq$ 67

x $\geq$ 8.375

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Explain why the set {4,4,20,20} has a standard deviation of 8

Andrews [41]

Because they have the number 8 in common.

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3 years ago

Find the length of the radius of the following circle. (x+2)^2+y^2=10

Leokris [45]

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2 years ago

Four more than 3 times a number is 31. Find that number

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2 years ago

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If the area of a square is 36 square unit what si the length of a side of the square

kodGreya [7K]

Answer:

The length of the square is 6 units.

Step-by-step explanation:

Given that all sides of the square are the same and the area of square formula is A = length×breadth. So let's make x as the sides :

$area = length \times breadth$

$let \: area = 36 \\ let \: sides \: = x$

$36 = x \times x$

${x}^{2} = 36$

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2 years ago

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F = uv/u + v make u the subject

never [62]

I'm assuming that you mean

$\dfrac{uv}{u+v}$

because if you meant

$\dfrac{uv}{u}+v$

then u would simplify and you couldn't make it the subject.

Under this assumption, we start with

$F=\dfrac{uv}{u+v}$

We multiply both sides by $u+v$

$F(u+v)=uv$

We expand the left hand side:

$Fu+Fv=uv$

We move all terms involving u to the left and all terms not involving u to the right:

$Fu-uv=-Fv$

We factor u on the left hand side:

$u(F-v)=-Fv$

We divide both sides by $F-v$

$u=\dfrac{-Fv}{F-v}$

3 0

3 years ago