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Hatshy [7]
3 years ago
11

help me out please with this math problem (pic down below) 30 points and a Brainliest for the correct answer:) also this is alge

bra 1

Mathematics
2 answers:
ZanzabumX [31]3 years ago
6 0
The correct answer is 9
andriy [413]3 years ago
4 0

Answer:

9 trays

Step-by-step explanation:

for deli A, (9 trays * $7.50) + $18 delivery = $85.50

for deli B, (9 trays * $9.50) + $0 delivery = $85.50

if you need to check your other answers, substitute the 9 trays for another number and you'll see the end price is different.

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If this is equal to 8 find x
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I think it is A. not sure though
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4 years ago
A plumber receives $72 an hour. how much is she paid for 20 hours of work?​
jeka57 [31]

Answer:

$1440

Step-by-step explanation:

$72/hour

For 20 hours, she receives

20 hours × $72/hour = $1440

7 0
3 years ago
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BRAINLIEST INCLUDED! The cost of a pair of boots was $40. They now cost $25. Determine the percent of decrease. Enter your respo
sertanlavr [38]

Answer:

37.5 percent

Step-by-step explanation:

First, work out the difference (decrease) between the two numbers you are comparing(which is 15 in this case) . Next, divide the decrease by the original number and multiply the answer by 100.(15/40=0.375 times 100=37.5) If the answer is a negative number, this is a percentage increase

7 0
3 years ago
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If y varies directly as x, and y = 64 when x = 8. Find y when x = 12
svetoff [14.1K]
Use the proportion 8/64 = 12/y. Cross multiply to get 8y = 768. Divide both sides by 8 to get y=96
7 0
3 years ago
If the probability of success during a single event of a geometric experiment is 0.34, what is the probability of success on the
Paraphin [41]

Since, the probability of success during a single event of a geometric experiment is 0.34.

We have to find the probability of success on the 6th event.

Since it is a geometric experiment. So, when a discrete random variable 'X' is said to have a geometric distribution then it has a probability density function (p.d.f.) of the form:


P= q^{x-1}p, where q = 1 - p

So, now

P = q^{x-1}p

where 'p' is the probability of success and 'q' is the probability of failure and x is the number of events.

Since the probability of success (p)is 0.34

Therefore, probability of failure(q)= 1 - p

= 1 - 0.34

= 0.66

and x = 6

So, P = q^{x-1}p

= (0.66)^{6-1} \times 0.34

= (0.66)^{5} \times 0.34

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So, the nearest tenth of a percent of probability of success on the 6th event =

4.257 %

Rounding to the nearest tenth, we get

= 4.3%

So, Option A is the correct answer.

4 0
3 years ago
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