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Naya [18.7K]
3 years ago
10

I need to find the blank part

Mathematics
1 answer:
Sliva [168]3 years ago
7 0
10+ (-3)+(-5)= 2

(-5)+(-9)+(-6)= -20

3 + (-6)+ (-1)= -4

(-7)+ (-3)+ 7= -3
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A day? 6. If 18 pumps can raise 2150 tonnes of water in 50 days, working 8 hours a day, how much water will be raised in 60 days
Butoxors [25]
Given, 18 pumps----2170 tonnes----10*7 hrs.
So, 16 pumps-------2170 tonnes----10*7*18/16 hrs.
And, 16 pumps-------1736 tonnes----10*7*(18/16)*(1736/2170)hrs. = 63 hrs.

So, no. of days req.= 63/9 = 7 days
5 0
3 years ago
Work out m and c for the line: y = 9 − x
Arlecino [84]

Answer:

m = -1

c = 9

Step-by-step explanation:

<em>m</em> is slope, which is the coefficient of <em>x</em>

<em>c</em> is the y-int, which is the constant

4 0
3 years ago
Mary walks from comer D to comer E to comer F on a city block that measures 264 feet wide and 900 feet long. Kate walks
Y_Kistochka [10]

Answer:

Difference between the distances traveled by Mary and Kate = 226 feet

Step-by-step explanation:

By applying Pythagoras theorem in right ΔDEF,

(DE)² + (EF)² = (DF)²

By substituting DE = 264 feet and EF = 900 feet

(264)² + (900)² = (DF)²

DF = √(69696+810000)

     = √879696

     = 937.92

Distance traveled by Kate diagonally = 938 feet

Distance traveled by Mary = DE + EF

                                            = 264 + 900

                                            = 1164 feet

Difference between the distances traveled by Mary and Kate = DF - (DE + EF)

= 1164 - 937.92

= 226.07

≈ 226 feet

3 0
2 years ago
Evaluate the expression solve for k = -3.4 write answer as a decimal or whole number <br><br> 7k/10
Sauron [17]
-2.38 is the answer because 7x-3.4=x/10=-2.38
6 0
3 years ago
The function f(t)=3,502.86(1.15)(t−12) models the amount of money in Gavin's investment account after t years. Gavin says this m
liraira [26]

Answer: Yes, because 3502.86 is multiplied by the exponent. i think, because i was stuck between that and the other yes, and the other yes was wrong, so im pretty sure its that.

Tell me if im right.

Step-by-step explanation:

5 0
3 years ago
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