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Alex
3 years ago
6

Help me with this math problem

Mathematics
2 answers:
Ann [662]3 years ago
6 0

Answer:

32 minutes

Step-by-step explanation:

1. 2.5 x 32 = 80

2. 180.3 - 80 = 100.3

Sooo yeah. It took 32 minutes to cool the water to 100.3 degrees Fahrenheit because the rate the temp. was dropping per minute was -2.5... we had to figure out what you could multiply 2.5 by to get 80 (32).

Aleonysh [2.5K]3 years ago
5 0

Answer:

32 Minutes

Step by step explainaion:

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The 8 red markers in a package account for 4% of all markers in the package. How many markers are in the package?
Vlad [161]

Answer:

192 markers

Step-by-step explanation:

if 8 = 4% then 2=1%

so we can assume there are 200markers in the package.

8-200= 192 markers

6 0
3 years ago
NEED HELP ASAP PLEASE
professor190 [17]
No idea sorry! If I knew I would tell you
7 0
2 years ago
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Create an equivalent system of these equations and test your solution <br> x + y = 1<br> x 3y =9
ad-work [718]
An equvilent equation
remember you can do anything to an equation as long asyou do it to both sides


assuming yo have
x+y=1 and
x-3y=9
mulitply both by 2
2x+2y=2
2x-6y=18
those are equvilent



ok, solve initial

x+y=1
x-3y=9
multiply first equation by -1 and add to 2nd equation


-x-y=-1
<u>x-3y=9 +</u>
0x-4y=8

-4y=8
divide both sides by -4
y=-2

sub back
x+y=1
x-2=1
add 2
x=3


x=3
y=-2
(3,-2)

if we test it in other one

2x+2y=2
2(3)+2(-2)=2
6-4=2
2=2
yep

2x-6y=18
2(3)-6(-2)=18
6+12=18
18=18
yep


solution is (3,-2)
4 0
4 years ago
Read 2 more answers
Vinny has decided to order high tops in black and white at a 5:8 ratio. He believes he will need a total of 169 pairs. How many
Citrus2011 [14]

Answer:

  65 pairs

Step-by-step explanation:

Black makes up 5/(5+8) = 5/13 of the total order, so ...

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Vinny will order 65 pairs of black high tops.

3 0
3 years ago
Type a digit that makes this statement true. NO LINKS!<br><br><br>3,737,<br><br>64 is divisible by 8
Pani-rosa [81]

Answer:

8

Step-by-step explanation:

3737648 / 8 = 467206

8 0
3 years ago
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