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marusya05 [52]
3 years ago
6

Which ratios form a proportion? 4/10 and 10/253/5 and 9/254/11 and 6/134/9 and 9/4​

Mathematics
1 answer:
andreev551 [17]3 years ago
8 0

Answer:

4/10 and 10/25 ok

3/5 and 9/25 not ok

4/11 and 6/13 not ok

4/9 and 9/4​ not ok

Step-by-step explanation:

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5/2x + 3 = 4/x x = -1 x = -4 x = 4
hoa [83]

Answer:

x = 0.5

Step-by-step explanation:

\frac{5}{2x} +3=\frac{4}{x}

2x(\frac{5}{2x} +3)=2x(\frac{4}{x})

5 + 6x = 8

5 - 5 + 6x = 8 - 5

6x = 3

\frac{6x}{6} =\frac{3}{6}

x = 0.5

5 0
3 years ago
How many 100 dollar bills are in 1 thousand
bonufazy [111]
100 goes into 1,000 ten times. The answer is 10. 
5 0
3 years ago
What is the property of (5+-5)+8=(-5+5)+8<br> PLZ Help!!
kolezko [41]

Answer:

commutative property

Step-by-step explanation:

You switched the numbers inside the parenthesis, which in this case is 5 and -5.

3 0
4 years ago
Anna makes unique jewelry. The owner of the "Unique" store agreed with Anna to deliver 20 bracelets a week. At the moment, Anna
fgiga [73]

Answer:

7 weeks

Step-by-step explanation:

80 ÷ 20 = 4

She over those four week she makes 17 per week. So,

17 × 4 = 68

Next, divide the product by 20:

68 ÷ 20 = 3.4

But 3.4 is only 3 full weeks so then its 3.

Lastly, add the 3 weeks we just solved for the the 4 weeks from before and you get 7 weeks.

So, Anna will be able to supply the "Unique" store for 7 weeks.

I HOPE I HELPED!!!!!!!!!! :))))))

6 0
3 years ago
Lan pays a semiannual premium of ​$600
disa [49]

Answer:

$225

Step-by-step explanation:

Automobile = 600

Health insurance = 150 x 12 = 1800

Life insurance = 300

1800 + 300+600 = 2700

2700/12 = $225

4 0
3 years ago
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