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Xelga [282]
3 years ago
13

Quick anyone know the answer to this?

Mathematics
1 answer:
nata0808 [166]3 years ago
4 0
The top question is B. 30, because you have to set 7y-30 equal to 4y+60 since both lengths are the same.
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Could anyone help me on this?<br> Simplifying this ratio.<br> 3 days : 3 weeks
Anuta_ua [19.1K]

Answer:

We know that,

1week=7days.

So,

3weeks:3days = 3×7days:3days

= 21days:3days

=

3

21

=

1

7

= 7:1

4 0
3 years ago
Why does insurance often provide "peace of mind"?
snow_lady [41]

Answer:D

Step-by-step explanation:

6 0
3 years ago
Michal yard is 320 acres if he mowed 2/5 of his yard on friday how many acres does he have left to mow on saturday P.S you get 2
77julia77 [94]
I92 because that is how many archers he has left for the next day.
5 0
3 years ago
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21 to spin a total of $50 at the store she wants to buy 2 shirts in 3 rings for 6 each how much did the shirts cost.
polet [3.4K]

Answer:

d

Step-by-step explanation:

4 0
3 years ago
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A set of data has a normal distribution with a mean of 5.1 and standard deviation of 0.9. Find the percent of data between 6.0 a
jolli1 [7]

The percent data between 6.0 and 6.9 would be 13.59%. Here’s the complete solution for this specific problem.

<span>z = (X - Mean)/SD </span><span>
<span>z1 = (6 - 5.1)/09 = + 1 </span>
<span>z2 = (6.9 - 5.1)/09 = + 2 </span>
<span>Required Percent = P(6 < X < 6.9)*100 </span>
<span>= P(1 < z < 2)*100 </span>
<span>= [P(z < 2) - P(z < 1)]*100 </span>
<span>= [0.9772 - 0.8413]*100 </span>
<span>= 0.1359*100 </span>
<span>= 13.59%

I am hoping that this has answered your query.</span></span>

5 0
4 years ago
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