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3 years ago

At the farmer's market,

Mathematics

1 answer:

Flura [38]3 years ago

3 0

Answer:

Cantaloupe = $6, peach=$5

Step-by-step explanation:

$8x+3y=63\\2x+3y=27\\$

Subtract the first one from the second one

$8x-2x+3y-3y=63-27\\6x=36\\x=6\\$

Plug in:

$2(6)+3y=27\\12+3y=27\\3y=15\\y=5$

Hope this helps plz hit the crown :D

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Translate the equation into written algebraic sentence 8x=4x-7

Rzqust [24]

Answer:

x = -7/4

Step-by-step explanation:

"Eight times a number equals 4 times that number less 7."

Subtracting 4x from both sides of this equation, we get:

4x = -7

Dividing both sides of this result by 4 yields

x = -7/4

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3 years ago

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Answer:

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Suppose you have a bag containing 15 red beads, 12 white beads and 8 black beads. You are going to draw one bead out of the bag.

iren [92.7K]

Answer:

probability that you draw a black bead or a white bead that is P(E1 U E2)

= 20/35 = 0.571

Step-by-step explanation:

Given a bag containing 15 red beads, 12 white beads and 8 black beads

n(S) = 15 + 12 +8 = 35

Let 'E1 be the event of selecting black beads and E2 be the event of selecting white beads

n(E1) = 8 and n(E2) = 12

Probability of draw a black bead P( E1 ) = $\frac{n(E_{1} )}{n(S)}$

$P(E_{1}) = \frac{8}{35}$

Probability of draw a white bead P( E2 ) = $\frac{n(E_{2} )}{n(S)}$

$P(E_{2}) = \frac{12}{35}$

probability that you draw a black bead or a white bead that is P(E1 U E2)

and E1 n E2 = ∅ (disjoint events)

Axiom of union

$P(E_{1}UE_{2} ) = P(E_{1})+P(E_{2}) - P(E_{1}nE_{2})\\$

E1 n E2 = ∅ ⇒ P(E1 n E2) = p(∅) = 0

$P(E_{1}UE_{2} ) = P(E_{1})+P(E_{2}) - 0$

$P(E_{1}UE_{2} ) = \frac{8}{35} +\frac{12}{35}$

$P(E_{1}UE_{2} ) = \frac{20}{35}$

$P(E_{1}UE_{2} ) = 0.571$

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4 years ago

78 round to the nearest tenth

LenaWriter [7]

78 rounded to the nearest tenth is 80

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3 years ago

What is the slope of y=-4

Paraphin [41]

the slope of y= -4 is 0

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