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2 years ago

Can someone help me out, please?

Mathematics

1 answer:

Rasek [7]2 years ago

6 0

Y=x/2 is also what I got

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How do I solve x-y=11 2x+y=19

Margarita [4]

x-y=11 2x+y=19
x=11+y
2(11+y)+y=19
22+2y+y=19
3y=-3
y=-1
x=11-1=10

5 0

3 years ago

Read 2 more answers

Jayla reads 35% of her book over 7 days. If Jayla reads the same number of pages each night, how many more days will it take her

Elanso [62]

Figure how much percent she reads daily. Then add on till 7 until ur done... For example 7= 35% 14(days)= 70

7 0

3 years ago

12. Ms. Smith keeps eight different cookbooks on a shelf in one of her kitchen cabinets. How many ways can the eight cookbooks b

Ghella [55]

Answer:

The number of ways are 40320.

Step-by-step explanation:

Consider the provided information.

Ms. Smith keeps eight different cookbooks on a shelf in one of her kitchen cabinets.

We need to determine the number of different ways to put eight cookbooks on the shelf.

We need to select 8 cookbooks taking 8 at a time.

So use the permutation formula: $^{n}P_{n}$

Substitute n=8 and simplify.

$^8P_8=\frac{8!}{(8-8)!}\\8!=40320$

Hence, the number of ways are 40320.

6 0

3 years ago

Mr. Williams owns a stable in the countryside. He created the expression below to represent the number of horses at the stable t

777dan777 [17]

A) the rate at which the number of horses was changing before mr williams began bording horses

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3 years ago

Margo paid $550.00 for dance classes. She paid a $50.00 registration fee and $25.00 for each week she was enrolled in the classe

trapecia [35]

Answer:

She enrolled in the dance classes for 20 weeks

Step-by-step explanation:

* Margo paid $550.00 for dance classes

* She paid a $50.00 registration fee

* She paid $25.00 for each week she was enrolled in the classes

* We need to find the number of weeks w she enrolled in the

dance classes

Lets write an equation of these information and solve it

∵ The registration fee = $50

∵ The cost of of each week = $25

∵ The number of weeks = w

She will pay $50 plus $25 times the number of the weeks

∴ She paid in the dance classes = 50 + 25 w

∵ She paid $550 for the dance classes

∴ 50 + 25 w = 550

The equation is 50 + 25 w = 550

Lets solve the equation

∵ 50 + 25 w = 550

Subtract 50 from both sides

∴ 25 w = 500

Divide both sides by 25

∴ w = 20

∵ w represents the number of the weeks

∵ w = 20 weeks

She enrolled in the dance classes for 20 weeks

5 0

3 years ago