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2 years ago

Evaluate the expression when y=1 expression: 5y

Mathematics

1 answer:

ra1l [238]2 years ago

4 0

Answer:

Step-by-step explanation:

→ Substitute in y = 1

5 × 1

→ Evaluate

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Mr. peters buys 3 1/4 pound of grapes for $4.55 what is the unit cost of the grapes

anastassius [24]

Divide 3 1/4 with 4.55

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2 years ago

which of the following equations represents a linear function? A. y=3X^2 B. Y=2- 6/x C. y= x +6 D.y=1/2x+3

grigory [225]

<span> C. y= x +6 is the linear equation</span>

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3 years ago

Christian randomly selects students from his grade to rate a math test as easy, moderate, or difficult. Of the students he surve

Paraphin [41]

Answer:

Step-by-step explanation:

This question is solved using proportions.

From the sample:

11 + 3 = 14 out of 13 + 11 + 3 = 27 would rate the test something other than easy.

Out of 162:

Applying the rule of three:

14 - 27

x - 162

Applying cross multiplication:

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Thus the correct answer is given by option C.

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2 years ago

Factor completely 2x^3y^4-8x^2y^3+6xy^2

Maru [420]

Answer:

2 x y^2 (x y - 1) (x y - 3)

Step-by-step explanation:

2x^3y^4-8x^2y^3+6xy^2

each term contains 2xy^2 so factor that out

2xy^2(x^2y^2 -4xy+3)

then lets factor the inside

what terms multiply together to give us +3 and add to -4

-3* -1 = 3 -3+-1 =-4

2 x y^2 (x y - 1) (x y - 3)

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2 years ago

(HELP! I HAVE NO TIME) At 2pm, a store had sold 15 packs of toilet paper. By 5pm, the store had sold 57 packs of toilet paper. W

Novay_Z [31]

$\mathrm {Hey, there!}$

Let's solve your problem:

The answer would be 280%.

We know the following information:

2pm - 15 toilet paper rolls

5pm - 57 toilet paper rolls

We have to find the <u>percent rate of change.</u>

Here is how we will do this problem:

<h3><u>First, Set up a ratio:</u></h3>

Change in the quantity [15 - 57]

-------------------------------------

Original quantity [15]

57 - 15 = 42

<h3><u>Next, we will divide. the ratio.</u></h3>

Given quantity - 42

Number of packs sold at 2pm - 15

Fraction - 42/15

<h3><u>Convert the fraction to a decimal.</u></h3>

Fraction - 42/15

Decimal - 2.8

<h3><u>Make the decimal to a percent.</u></h3>

Decimal - 2.8

Percent - 28%

<h2><u>Our answer is 280%</u></h2>

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3 years ago

Read 2 more answers

Evaluate the expression when y=1 expression: 5y​

Evaluate the expression when y=1 expression: 5y