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scoray [572]
4 years ago
13

A chemist weighed an object and found its mass to be 250 grams. The objects actual mass is 360 grams. What was the chemists perc

ent of error?
Mathematics
1 answer:
icang [17]4 years ago
6 0
100 percent off the top floor of a chair
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Which of the following expressions is not equivalent to <br> 2(b+​8)?
maksim [4K]

the awser is (-2)(8 + 6) + (-3)

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3 years ago
12<br> The value of x must be greater than<br><br> a .0<br> B.1<br> C.3<br> D.7
Likurg_2 [28]

Answer:

must be greater than 7

Step-by-step explanation:

using pythagoras theorem

a^2=b^2-c^2

x^2=15^2-12^2

x^2=225-144

x^2=81

take square root both sides

√x^2=√81

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and 9 is greater than 7

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3 years ago
How do I solve 4.6x^2 + 3.2x - 4x + 2.7x^2 - x
jekas [21]
4.6x^2+3.2-4x+2.7x^2-x=4.6x^2+3.2x+-4x+2.7x^2+-xCombine like terms:4.6x^2+3.2x+-4x+2.7x^2+-x=(4.6x^2+2.7x^2)+(3.2x+-4x+-x)=7.3x^2+-1.8xAnswer:7.3x^2-1.8x
4 0
3 years ago
The scale of a map (in centimeters) says that 4cm represents 5km.
Firlakuza [10]

Answer:

16/5 or 3.2

Step-by-step explanation:

4cm/5km = x/4km

Cross multiply to find answer

5 0
3 years ago
What's 60 in the ratio 1 : 4
GalinKa [24]

Answer:

15/240 = 5/80= 1:16. helpful answer

3 0
3 years ago
Read 2 more answers
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