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2 years ago

3. Ruby and Sapphire love strawberries. Ruby starts out with 10 strawberries and finds 3 more

Mathematics

1 answer:

Svetllana [295]2 years ago

3 0

Answer:

4 minutes

Step-by-step explanation:

Let the time taken for them to have the same number of strawberries be x minutes.

Initially

Ruby: 10 strawberries

Sapphire: 30 strawberries

After x minutes

Ruby: (10 +3x) strawberries

Sapphire: (30 -2x) strawberries

Since we let x minutes be the amount of time that has passed when they have the same amount of strawberries,

10 +3x= 30 -2x

Bring all x terms to one side, constant to the other:

3x +2x= 30 -10

Simplify:

5x= 20

Divide both sides by 5:

x= 20 ÷5

x= 4

∴ It will take 4 minutes.

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3241004551 [841]

Answer:

60, and m = 30, and 1 min 20.

Step-by-step explanation:

For A, the 60 is the starting point meaning that the temperature was intitally 60 degrees

For B, if we divided both sides by 2 we get the answer m = 30, meaning every minute, it was up 30 degrees.

For C, we know that in one minute it will be 90 degrees, so 60 seconds = 30 degrees. So lets divided both sides by 3 to get 10 degrees. We get 20 seconds. It will take 1 min and 20 for it to be 100 degrees.

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2 years ago

The cell phone store is having a new years sale! You can save 20%on the iphone. If the phone usually costs $300 how, much will i

mars1129 [50]

$240

Step-by-step explanation:

300×0.80 OR 300-(300×0.20)

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2 years ago

Simplest form 7/15 - 1/5

Lunna [17]

Answer:

4/15

Step-by-step explanation:

7/15 - 3/15 = 4/15

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2 years ago

Read 2 more answers

H(t)=-16t*2+16t=480 need help

Black_prince [1.1K]

I do not need any snarky remarks from you. I was trying to help. FOR EXAMPLE what am I solving for? Y intercept, X intercept. You don't get to get angry with me because I'm asking a simple question girl.

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3 years ago

Given B(17,5), C(11, -3), D-1, 2), and E(x, -6), find the value of x so that BC || DE.

son4ous [18]

Answer:

$x=-7$

Step-by-step explanation:

Remember that:

Two lines are parallel if their slopes are the same.
Two lines are perpendicular if their slopes are negative reciprocals.
And two lines are neither (a.k.a intersecting) if they are neither parallel nor perpendicular.

We want to find the value of x such that $\overline{BC}\parallel\overline{DE}$ .