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Arturiano [62]
3 years ago
10

Explain how you can use a digram to determine the start time when the end time is 9:00 A.M. and the elapsed time is 26 minutes.

What is the start time?
Mathematics
1 answer:
alexgriva [62]3 years ago
4 0
Do 9:00 A.M. minus 26 minutes and your awnser is 8:34 A.M.
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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
Write the expression in standard form. <br><br> 27ℎ ÷ 3ℎ
Andrews [41]

Answer:

I think 9h

Step-by-step explanation:

Since both variable are the same, you can divide the numbers. 27/3=9. Add back in the variable, and the answer would be 9h. That's how I would solve it at least

6 0
3 years ago
Kashif bought a bicycle for rs 10000 and sold it for rs 8000 his loss percentage is
aleksley [76]

Answer:

20%

Step-by-step explanation:

  • Loss=C.P-S.P
  • Loss=10000-8000
  • Loss=2000
  1. Loss%=loss/cp*100
  2. Loss%=2000/10000*100
  3. Loss%=20%
7 0
2 years ago
A bag of sweets contains only two different flavours-strawberry and orange
Rufina [12.5K]

Answer:

0.2

Step-by-step explanation:

hope this helps you. have a good day

5 0
3 years ago
A rectangular park is 50m long and 35m broad.A 3.5m broad pavement runs along the boundary of the park .Find the cost of cementi
igor_vitrenko [27]

Answer:

$29,750

Step-by-step explanation:

Area (pavement) = 2 x 3.5(50 + 35)

= 7 x 85

= 595 sq. m.

Cost

= 400 per 8. sq. m.

= 50 per sq. m.

=> 595 x 50

=> $29.750

8 0
3 years ago
Read 2 more answers
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