3 years ago

Two co-teachers, Daniel and Mathew, have to grade a set of math journals.

Mathematics

2 answers:

Ulleksa [173]3 years ago

6 0

Answer:

220

Step-by-step explanation:

55 percentage of x = 121

so X = 220

as simple as that

Tresset [83]3 years ago

3 0

220!!!!!!!!!!! is the answer :D

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Please help me with this.

Andrej [43]

$a_{n} = +(n-1)d$

We are given the first term and the common difference.

So,

$a_{1}=-10 \\ \\ d=5$

Using these values in the given equation, we get:

$a_{n} =-10+(n-1)*5 \\ \\ 
 a_{n} = -10 + 5n - 5 \\ \\ 
 a_{n} = 5n -15$

So, option C gives the correct answer.

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3 years ago

A student was asked to use the formula for the perimeter of a rectangle, P = 2l + 2w, to solve for l. The student came up with a

Ainat [17]

Although the student in the example used in this question did not make too many errors, there is a better way of working out this equation so that you will find the correct answer. In an equation like this where you need to get I on it's own, you need to divide everything by two to get -w+P over 2 = l. To get to this point, to start with you would need to do -2w+P=2l instead of P-2w=2l.

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4 years ago

Read 2 more answers

22 divided y equals -2

stepan [7]

22 divided by -2 and you get -11 then 22 divided by -11 = -2

4 0

3 years ago

Plz answer this question

stellarik [79]

Answer:

3,16,729