All categories

3 years ago

**************** :-)

Mathematics

2 answers:

Lorico [155]3 years ago

8 0

I think the answer is n-20- first choice.

Varvara68 [4.7K]3 years ago

4 0

ANSWER

n-20

EXPLANATION

The terms of the sequence are:

-19,-18,-17,-16,-15,...

The first term of the sequence is

a=-19 and the common difference is d=-18--19=1

The rule is given by:

f(n)=a+d(n-1)

f(n)=-19+1(n-1)

f(n)=-19+n-1

f(n)=n-20.

Therefore the rule for the given sequence is n-20.

The first option is correct.

You might be interested in

ASAP HELP PLEASE! WILL GIVE BRAINLIEST

Mila [183]

Answer:

Least Value = 2
Median = 6
Greatest Value = 10
Third Quartile = 8
Range = 8 (10 - 2 = 8)
First Quartile = 5

Step-by-step explanation:

7 0

2 years ago

field biologist collects 220 butterflies and moths. He collects 4 butterflies for every moth. How many butterflies and how many

ki77a [65]

Answer:

The number of butterflies he collects = 176

The number of moth he collects = 44

Step-by-step explanation:

This question has to do with ratio.

We are told in the question that:He collects 4 butterflies for every moth.

Hence, the ratio of

Butterflies : Moth

4 : 1

Sum of the proportion = 4 + 1 = 5

We are also told he has a total of 220 butterflies and moths.

Hence:

The number of butterflies he collects is calculated as

4/5 × 220 = 176 butterflies

The number of moth that he collects =

1/5 × 220 = 44 moth

3 0

3 years ago

Read 2 more answers

A customer buys 12.42 in merchandise and gives cashier a ten dollar bill a five dollar bill a dime a nickel and two pennies her

Arturiano [62]

She gets $2.75 back if that’s what you’re asking.

4 0

3 years ago

A bakery sells pastries in boxes of 7 each. If the bakery has 27 pastries, how many boxes can be filled?

skad [1K]

Answer:

3 with a few left over so 4

Step-by-step explanation:

4 0

3 years ago

6x-5y=15 x=y+3 find x and y

arlik [135]

Answer:

(0, -3)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Algebra I

Terms/Coefficients
Coordinates (x, y)
Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

6x - 5y = 15

x = y + 3

Step 2: Solve for y

Substitution

Substitute in x: 6(y + 3) - 5y = 15
Distribute 6: 6y + 18 - 5y = 15
Combine like terms: y + 18 = 15
[Subtraction Property of Equality] Subtract 18 on both sides: y = -3

Step 3: Solve for x

Define original equation: x = y + 3
Substitute in y: x = -3 + 3
Add: x = 0

7 0

3 years ago