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Advocard [28]
2 years ago
7

A new cell phone has a purchase price of $225. With the extended warranty, the total cost comes to $289. What

Mathematics
2 answers:
Dafna1 [17]2 years ago
5 0
Sorry, I am not sure but it is either A. 28% or B. 22%
Elenna [48]2 years ago
4 0

Answer:

The answer would be Letter A which is 28%

Step-by-step explanation:

Took the practice on edge 2020 and got it correct.

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Find the inner product for (-8,2) (4.5,18) and state whether the vectors are perpendicular.
Anna71 [15]

Answer: 0; Yes

Step-by-step explanation:

-8 x 4.5 = -36

2 x 18 = 36

-36 + 36 = 0

since the product is zero, the vectors are perpendicular

3 0
2 years ago
EXPONENTS:<br> What is the value of 7 cubed?<br> A. 14<br> B. 21<br> C. 49<br> D. 343
quester [9]

Answer:

C

Step-by-step explanation:

7*7=49

6 0
3 years ago
Read 2 more answers
What is the correct value of x in the triangle
seraphim [82]

Answer: 4

Step-by-step explanation:

Using the 30°-60°-90° Triangle Theorem we know that the base side is half of the hypotenuse. That means it is half of 8 which is 4

4 0
3 years ago
A strand of bacteria has a doubling time of 15 minutes. If the population starts with 10 organisms, how long would it take for t
slamgirl [31]

In 90 minutes the population to grow to 700 organisms.

Given that,

A strand of bacteria has a doubling time of 15 minutes.

If the population starts with 10 organisms.

We have to determine,

How long would it take for the population to grow to 700 organisms?

According to the question,

A strand of bacteria has a doubling time of 15 minutes.

If the population starts with 10 organisms.

In 15 minutes strand of bacteria has a doubling time the population starts with 10 organisms.

\rm = 10 \times 2 = 20 \ bacteria

In 15 minutes 20 bacteria for the population to grow.

In 30 minutes strand of bacteria has a doubling time the population starts with 20 organisms.

\rm = 20 \times 2 = 40 \ bacteria

In 30 minutes 40 bacteria for the population to grow.

In 45 minutes strand of bacteria has a doubling time the population starts with 40 organisms.

\rm = 40 \times 2 = 80 \ bacteria

In 45 minutes 80 bacteria for the population to grow.

In 60 minutes strand of bacteria has a doubling time the population starts with 80 organisms.

\rm = 80 \times 2 = 160 \ bacteria

In 60 minutes 160 bacteria for the population to grow.

In 75 minutes strand of bacteria has a doubling time the population starts with 160 organisms.

\rm = 160 \times 2 = 320 \ bacteria

In 75 minutes 320 bacteria for the population to grow.

In 90 minutes strand of bacteria has a doubling time the population starts with 320 organisms.

\rm = 320 \times 2 = 640 \ bacteria

In 90 minutes 640 bacteria for the population to grow.

In 120 minutes strand of bacteria has a doubling time the population starts with 640 organisms.

\rm = 640 \times 2 = 1280 \ bacteria

In 120 minutes 1280 bacteria for the population to grow.

Hence, In 90 minutes the population to grow to 700 organisms.

For more details refer to the link given below.

brainly.com/question/3188472

3 0
2 years ago
Read 2 more answers
Help please!!!!!! And explain ur answer.. I will mark as BRAINLIEST.​
Musya8 [376]

Answer:

The total earning of commission on sales of 85, 000 will be:

3500+1050=4550

Step-by-step explanation:

  • Total sales earning = 85,000

As salesperson earns 5% commission the first 70,000.

\frac{5}{100}\:\times \:70\:000=3500

As the salesperson earns 7% commission on the sales over 70,000.

As 15000 is the sales earning on which he will get commission 7%.

Because

  • 85,000 - 70,000 = 15000

So the 7% earning of salesperson will on 15000 will be:

\:\frac{7}{100}\:\times \:15\:000=1050

Therefore, the total earning of commission on sales of 85, 000 will be:

3500+1050=4550

8 0
3 years ago
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