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LiRa [457]
3 years ago
14

Please help mehhh Thank chuuu!! :))

Mathematics
2 answers:
Citrus2011 [14]3 years ago
8 0
Your answer would be -40!
(-7)(7)+9(-1/-1)
-49+9(-1/-1)
-49+(9)(1)
-49+9
=-40
Zepler [3.9K]3 years ago
5 0
I got -441 hope this helps you
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Henry and Gavin are marking exam papers. Each set takes Henry 36 minutes and Gavin 1 hour. Express the times Henry and Gavin tak
RUDIKE [14]

The ratio of time taken by Henry to time taken by Gavin is 3:5

Step-by-step explanation:

Time taken by Henry for each set = 36 minutes

Time taken by Gavin for each set = 1 hour

We will convert Gavin's time into minutes.

Time taken by Gavin for each set = 60 minutes

Ratio;

Time taken by Henry : Time taken by Gavin

36:60

Dividing by 6

\frac{36}{6}:\frac{60}{6}\\6:10

Dividing by 2

\frac{6}{2}:\frac{10}{2}\\3:5

The ratio of time taken by Henry to time taken by Gavin is 3:5

Keywords: ratio, division

Learn more about ratios at:

  • brainly.com/question/10382470
  • brainly.com/question/10382722

#LearnwithBrainly

6 0
4 years ago
How to multiply 20x67?
Neporo4naja [7]

Answer:

do 20 times 67 and it will equal 1,340

Step-by-step explanation:

1

20

x 67

1 , 3 4 0

8 0
3 years ago
Read 2 more answers
Which value must be added to the expression x^2+12x to make it a perfect-square trinomial?
Studentka2010 [4]

Answer:

Add 36. The factored form is (x+6)^2.

Step-by-step explanation:

A perfect square is a trinomial that factors into the form (x+a)^2. To find the value to add to it divide 20 by 2 and square it.

12/2 = 6

6*6 = 36

This means c=36. The factored form is (x+6)^2.

3 0
3 years ago
Compare fraction 2over 3 and 7 over 8 which is greater
Paul [167]
If you use a calculator to find the exact decimal of these fractions, you can easily find this out.

2/3 as a decimal equals:  0.6666 (repeating sixes)

7/8 as a decimal equals:  0.875

0.875 > 0.666

7/8 > 2/3

7 over 8 is greater!  Hope this helps! :)
5 0
3 years ago
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2x + y -z=9<br> -x + 6y + 2z =- 17<br> 5x + 7y +z = 4
Effectus [21]

Answer:

Step-by-step explanation:

What is y?

3 0
3 years ago
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