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Ede4ka [16]
3 years ago
7

I have no idea how to do these

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
7 0

Answer:

You have the correct answer it is the third one.

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Pleaseeee help!!!!! I will mark you as brainlinest for correct answer!!!!!!
Setler79 [48]
So the equation you'll use is (18,000 × .041)y+18000. Y is your years which is 20. So all you need to do is plug it in to get (18,000 × .041)20+18000 and when solved is 32,760 downloads by 2030
4 0
3 years ago
A textbook store sold a combined total of 438 biology and psychology textbooks in a week. The number of psychology textbooks sol
Liono4ka [1.6K]
<h2>Answer:</h2>

Number of biology textbooks sold: 257 textbooks

Number of psychology textbooks sold:​ 181 textbooks

<h2>Explanations:</h2>

Let the total number of biology textbook sold be "a"

Let the total number of psychology textbook sold be "b"

If a textbook store sold a combined total of 438 biology and psychology textbooks in a week, then:

a + b = 438 ................... 1

If the number of psychology textbooks sold was 76 less than the number of biology textbooks sold, then;

b = a - 76 ...................... 2

Substitute equation 2 into 1

a + (a-76) = 438

a + a - 76 = 438

2a = 438 + 76

2a = 514

a = 514/2

a = 257 biology textbooks

From equation 2;

b = a - 76

b = 257 - 76

b = 181 psychology textbooks

Number of biology textbooks sold: 257 textbooks

Number of psychology textbooks sold:​ 181 textbooks

7 0
1 year ago
Why is this scientific notation: 12,050,000 = 1.25×107 wrong
Solnce55 [7]

Answer:

1.234 × 101

Step-by-step explanation:

7 0
3 years ago
It takes Dan 32 minutes to complete 2 pages of math homework. At this rate, how many pages does he complete in 200 minutes?
Anna [14]
He can complete about 6 pages of math homework.
you first do 200 divided by 32 and you get 6.25. So therefore Dan can complete 6 pages in 200 minutes.
7 0
3 years ago
Read 2 more answers
What is the product of 2/3 * 3/8?
klio [65]

Answer:

0.25

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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