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4 years ago

Identify an algebraic expression that represents Jo's age y years after her 20th birthday.

Mathematics

1 answer:

prisoha [69]4 years ago

4 0

Answer:

D 20 + y

Step-by-step explanation:

so we are told that we need to put those words into an equation.

we are told that jo's age is 20

but we are looking for jo's age y years after her 20th so we put that into an equation 20+y

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2 years ago

I have 25 red and white marbles in my pocket. If the ratio red to white is 2:3, how many white marbles do I have?

torisob [31]

Answer:

we have 10 red marbles and 15 white marbles

Step-by-step explanation:

<u>Step 1:</u> Given data

Total marbles = 25

Ratio red: white = 2:3

<u>Step 2:</u> Write an equation

Red marbles = X

White marbles = Y

X+ Y = 25

X = 2/3 Y

2/3 Y + Y = 25

5/3 Y = 25

Y = 15

X =2/3 * 15 = 10

To control this we can plug this in the equation X + Y = 25

10 + 15 = 25

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3 years ago

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3 years ago

Find the value of 4 cubed

posledela

Answer:

4³ = 64

Step-by-step explanation:

4 * 4 * 4 = 64

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3 years ago

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Thirty five more boys than 2/3 the number of girls participate in intramural sports at the local high school. If the number of b

gogolik [260]

Answer:

120

Step-by-step explanation:

Let g = number of girls.

(2/3)g is 2/3 the number of girls

(2/3)g + 35 is 35 more than 2/3 the number of girls. This is the number of boys.

(2/3)g + 35 = 115

(2/3)g = 80

(3/2)(2/3)g = 80(3/2)

g = 120

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3 years ago