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MissTica
3 years ago
6

pedro open his account with $710 and withdraw $35 per week. maria opened her account with $570 and withdrew $25 weekly .In how m

any weeks will their accounts be equal
Mathematics
1 answer:
user100 [1]3 years ago
6 0
In 14 weeks, if you turn both of those into equations you'll get

y =  - 35x + 710
and
y =  - 25x + 570

You should be then able to graph this and see that intersects at 14 weeks at 220 dollars
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38. Emily is buying some graduation pictures. She pays $25 for the sitting and $15 for each
goldfiish [28.3K]

a. She pays $100 for 5 sheets

b. 25+15x dollars for x sheets

c. 8 sheets

Step-by-step explanation:

Given

Sitting cost = $25

Per sheet picture cost = $15

Let p be the number of sheets of pictures

Then the cost can be written as a function of p

c(p) = 25+15p

Now,

<u>a. How much does she pay for 5 sheets of pictures?! </u>

Putting p = 5 in the function

c(5) = 25 + 15(5)\\= 25+75\\=100

She will pay $100 for 5 sheets of pictures

<u>b. How much does she pay for "x" sheets? </u>

Putting x in place of p

c(x) = 25+15x

<u>c. How many sheets can she buy for $145? </u>

We know the cost now, we have to find p so,

145 = 25+15p\\145-25 = 25+15p-25\\120 = 15p

Dividing both sides by 15

\frac{15p}{15} = \frac{120}{15}\\p = 8

Hence,

She can buy 8 sheets for $145

Keywords: Linear equation, Algebraic functions

Learn more about functions at:

  • brainly.com/question/629998
  • brainly.com/question/6208262

#LearnwithBrainly

5 0
3 years ago
At a particular garage, 60% of the customers require an oil change, 20% require tire rotation, and 75% of customers require at l
ZanzabumX [31]

Answer:

a. 5%

b. 55%

c. 70%

Step-by-step explanation:

a. The probability of customer wanting both services (P(O&T)) is:

P(O)+P(T)+P(O\&T) = 0.75\\P(O)+P(O\&T) =0.60\\P(T)+P(O\&T) = 0.20\\P(O)+P(T)+P(O\&T) -[P(O)+P(T)+2P(O\&T)]=0.75 -(0.60-0.20)\\P(O\&T)=0.05=5\%

The probability is 5%

b. The probability that the customer will need an oil change, but not a tire rotation (P(O)) is :

P(O)+P(O\&T) = 0.60\\P(O\&T) = 0.05\\P(O) =0.60-0.05 = 0.55 = 55\%

The probability is 55%

c. The probability that the customer will want exactly one of these two services (P(O)+P(T)) is:

P(O)+P(T)+P(O\&T) = 0.75\\P(O\&T) = 0.05\\P(O)+P(T) =0.75-0.05 = 0.70 = 70\%

The probability is 70%

4 0
3 years ago
Read 2 more answers
Graph this function:<br> y - 5 = (x + 2)
Mnenie [13.5K]

Answer: draw a dot at -7 on the x-axis and a dot at positive 7 on the y-axis. then draw your line through the dots and across the graph using a ruler or just try drawing a straight line.

6 0
2 years ago
Fast forward to the moment after the two outermost recursive calls complete, but before the final Merge step. Thinking of the tw
adoni [48]

Answer:

The answer is 2.

Step-by-step explanation:

1- Suppose we have following array of ten integers: 5 3 8 9 1 7 0 2 6 4.

2- Before the last merge, the left half and the right half must be sorted. So it should be

1 3 5 8 9 0 2 4 6 7

Therefore the solution is 2.

4 0
3 years ago
Please show your work
Paladinen [302]

Answer:

see in the picture, the perimeter of this rectangle is

2( x + 3x) = 8x but the perimeter is 65.6

=> 8x = 65.6

<=> x = 65.6/8

=> x = 8.2

7 0
2 years ago
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