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3 years ago

-9(y+12)=4(-7y-8) Solve for y

Mathematics

1 answer:

miv72 [106K]3 years ago

5 0

-9(y + 12) = 4(-7y -8)

Use the distributive property:

-9y - 108 = -28y -32

Add 32 to both sides:

-9y - 76 = -28y

Add 9y to both sides:

-76 = -19y

Divide both sides by-19

Y = 4

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What is the probability of rolling a number 2 or less on a dice?

scoray [572]

Answer:

1/3 if it's a standard die with the highest number being 6.

Step-by-step explanation:

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3 years ago

A number cube numbered 1 - 6 is rolled once. What is the probability that the side facing up shows 4

marshall27 [118]

Answer: $\bold{\dfrac{1}{6}}$

<u>Step-by-step explanation:</u>

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3 years ago

Read 2 more answers

Two siblings' ages have a sum of 64 years. The older sibling was born 6 years before their young sibling.

Elina [12.6K]

Hi!

So we have to make a system of equations here.

Let sibling 1 be O and sibling 2 be Y (for older and younger)

So:

O + Y = 64

O = 64 - Y

(Either one works)

The older sibling is 6 years older.

O = Y + 6

Make everything in terms of Y.

64 - Y = Y + 6

Same to both:

58 = 2y

2y = 58

Divide by 2 on both sides:

y = 29

Since the older sibling is 6 years older:

29 + 6 = 35

Y = 29

O = 35

Let me know if you have any questions.

4 0

2 years ago

Question 2. I have another question on my feed. Please help me solve!!!!

Maru [420]

Answer:

A' (11, 4), B' (-10, -6), C' (7, -9)

Step-by-step explanation:

Since you are reflecting over the y-axis, you take the opposite of the x value. So if the x is positive, make it negative. If the x is negative, make it positive. The y coordinate stays the same.

4 0

3 years ago

Brett warmed up for his basketball game by running around the court 3 times . If the court is 84 feet by 50 feet, how many feet

lana [24]

Answer:

804 feet

Step-by-step explanation:

Given: Dimension of a basketball court is 84 feet by 50 feet.

Considering the shape of basketball court is in rectangle shape.

∴ Finding the perimeter of rectangle to know total number of feet in one round.

Perimeter of rectangle= $2(l+w)$

where, l= length

w= width

∴ Perimeter of rectangular court= $2(84\ feet + 50\ feet)$

⇒ Perimeter of rectangular court= $2(134\ feet)$

Opening parenthesis

⇒ Perimeter of rectangular court= $2\times 134\ feet= 268\ feet$

Hence, Brett run 268 feet in one round of warm up.

As given, Brett ran around the court 3 times.

∴ Total number of feet= $268\ feet\times 3= 804\ feet$

Hence, Brett jog for 804 feet.

3 0

3 years ago