3 years ago

Please help, I can't get it

Mathematics

1 answer:

algol [13]3 years ago

5 0

X+5 /3
hope this helps!

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2 m³ of soil containing 35% sand was mixed into 6 m³ of soil containing 15% sand. What is the sand content of the mixture?

Alex17521 [72]

.2 m^3 is 10 percent
.2 m^3 is 10 percent
.2 m^3 is 10 percent
.1 m^3 is 5 percent
therefore
.7m^3 is 35%

.6m^3 is 10%
.3 m^3 is 5%
so .9m^3 is 15 %

all in .9m^3 +.7m^3 = 1.6 m^3 will be sand

6 0

3 years ago

I need help with question 30..

Aloiza [94]

Let's say 1000 dollars was spent on all of these. That would mean 170 dollars and 240 were spent on food and entertainment respectivly. If we want to see how much of the total cost was spent on these things, we would have to add them and divide them by 1000, so:

$\frac{170+240}{1000}=\frac{410}{1000}=frac{41}{100}$