## dasDaName Group Title Solve 0.7x = 22. Round your answer to the nearest hundredth. A. x ≈ -7.12 B. x ≈ 8.45 C. x ≈ -8.67 D. x ≈ 9.34 one year ago one year ago

1. yummydum

$0.7x=22$divide both sides by $$0.7$$ to isolate x:${\cancel{0.7}{x}\over\cancel{0.7}}={22\over0.7}$$x={22\over0.7}$$x=31.428571...$$x\approx31.43$i think your options are incorrect, check to make sure

2. dasDaName

i dont have any other options, other than these 4

3. yummydum

well then the options are incorrect because what i worked out is accurate...maybe its a misprint?

4. dasDaName

i dont think so....this is how long it took to solve this one : x=log35 log35=log105log103≈0.698970.47712≈1.46

5. yummydum

@UnkleRhaukus help?

6. sunnymony

31.42is ans

7. technofable

i think u wrote down the question incorrectly. it should be $0.7^{x}=22$ then using the base change formula it should be $x= \frac{ \log22 }{ \log0.7 } \approx -8.67$

8. sunnymony

good