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patriot [66]
3 years ago
7

If you were to use the substitution method to solve the following system, choose the

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
7 0

Answer:

15x - y = - 6.....15x + 6 = y...so we sub in 15x + 6 in for y on the other equation

5x - 3y = -13

5x - 3(15x + 6) = -13 <== the new equation

Step-by-step explanation:

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A function f has the property that f(x-y)=f(x)/(y) f(y) does not equal zero if f (8)=256and f(5)=32 what is the value of f(3)
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Original price 95$ sale price 61.75 what is percent discount
Sladkaya [172]

Answer:

If i'm not mistaken the answer should be a 35% discount.

Step-by-step explanation:

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Jackie is selling smoothies at a school fair. She starts the day with $15 in her cash box to provide change to her customers. If
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8 0
3 years ago
All the boxes in a certain warehouse were arranged in stacks of 12 boxes each, with no boxes left over. After 60 additional boxe
AveGali [126]

Answer:

(1) There were fewer than 110 boxes in the warehouse before the 60 additional boxes arrived. (2) There were fewer than 120 boxes in the warehouse after the 60 additional boxes arrived.

Step-by-step explanation:

Given that all the boxes in a certain warehouse were arranged in stacks of 12 boxes each, with no boxes left over.

This implies that boxes are in multiples of 12

i.e. 12, or 24, or 36 or....

Let us say this as 12m for m an integer

Now additional boxes arrived =60

Total number of boxes now = 12m+60

This when arranged in stacks of 14,nothing left out

Or this is multiple of 14

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By trial and error we find that if 60 is to be divided by 14, 24 should be added and 24 is a multiple of 12.

So we say originally 24 boxes were there now 84 boxes there.

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3 years ago
Three coins are flipped.
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Step-by-step explanation:

1.

when 3 coins are flipped the following outcomes are possible

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t h h

t h t

t t h

t t t

yes, there have to be 8 options, because we have 3 positions with 2 possible outcomes. that means

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2.

at least 2 tails means 2 or 3 t in the list item :

h t t

t h t

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3.

so, 4 out of the 8 possible outcomes. the probability is then therefore

4/8 = 1/2 = 0.5

8 0
2 years ago
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