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4 years ago

Can you help me solve for z Please shower work so I can understand

Mathematics

1 answer:

valentina_108 [34]4 years ago

5 0

Answer:

z=(x-1)/2

Step-by-step explanation:

this is the correct answer

please mark me as brainlist

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Helga wants to have a lot of helium filled balloons at her party. The helium tank cost $58 to rent. Balloons cost $0.29 each. Sh

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Answer:

C=65.25

Step-by-step explanation:

C=58+0.29(25)=65.25

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3 years ago

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Mrs. Gordon had $40 to spend on cookies and pies. She bought 4 cookies, each of which cost $3. She spent twice as much on pies a

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First, multiply $3 by 4 to get $12 spent on cookies. Then, you multiply $12 by 2 to know that the pies cost $24. You then divide the $24 by 3 to get $6 per pie. Meaning, each pie had cost $6. You add the $12 and $24 together to get $36. Finally, you subtract $36 from $40 to know that she only has $4 left.

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3 years ago

2. Write an algebraic equation and solve it

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Equation: 70-m=2
Solution: the answer is 68.

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2 years ago

"Place a number in each box so that each equation is true and each equation has at least one negative number."

AnnZ [28]

Answer:

x=1, y=-1

Step-by-step explanation:

Given the equation:

where x and y are the blank boxes.

We want to find

A positive value of x

A negative value of y

That makes the equation true.

If x=1, y=-1

This can be confirmed using addition law of indices()

In general, any pair of a number and its negative value will satisfy the equality.

Step-by-step explanation:

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2 years ago

Six football players, all defensive linemen, decide that they'll gain an average of 10 pounds over the summer. At the start of t

noname [10]

Answer: b. 14 pounds

Step-by-step explanation:

Formula to calculate average :

$\text{Average}=\dfrac{\text{Sum of all observations}}{\text{Number of observations}}$

Let x denotes the number of pounds the last person have to gain so that the group can attain its goal.

Required average = 10 pounds

Observations = 9, 13, 11, 6, 7 and x (pounds)

Number of observations= 6

Sum of all observations = 9+13+ 11+ 6+7+x=46+x

According to the question , we have

$10=\dfrac{46+x}{6}\\\\ 46+x=10\times6\\\\ 46+x=60\\\\ x=60-46=14$

i..e the last person has to gain 14 pounds so that the group can attain its goal.

Hence, the correct answer is b. 14 pounds .

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4 years ago