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3 years ago

6

Paul bought 9 total shirts for a total of $72. Tee shirts cost $10 and long sleeve shirts cost $7. How many of each type of shir

t did he buy?

1 answer:

sasho [114]3 years ago

4 0

He bought three $10 shirts and six $7 shirts.

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What is the sum of 90 minutes and 50 minutes? 130 minutes 1 hour, 40 minutes 2 hours 2 hours, 20 minutes

LiRa [457]

90 mins + 50 mins = 140 mins
60 mins ==1 hr 2*60 = 120 mins
140 mins -120 mins= 20 mins
2 hrs ans 20 mins is the answer

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4 years ago

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An electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricit

TiliK225 [7]

Answer:

atleast 385

Step-by-step explanation:

Given that an electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricity, they would like know the mean daily power usage for homes there.

Population std deviation = $\sigma = 50$

Sample size = $n$

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Margin of error for 95% would be Critical value ( std error)

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$1.96*\frac{50}{\sqrt{n} }19.6^2\\n>384.16$

Sample size should be atleast 385

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4 years ago

Rewrite the expression with the given base. 25^3x with a base of 5.

svp [43]

$Use\ (a^n)^m=a^{nm}\\\\25^{3x}=(5^2)^{3x}=5^{2\cdot3x}=5^{6x}$

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4 years ago

6.71 x10^8 miles per hour in standard form

xeze [42]

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3 years ago

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Write ANY FOUR factors of -23 ab2.

Sauron [17]

Answer:

The factors are;

23, -23 , a , b

Step-by-step explanation:

Here, we want to write the factors of the given expression

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The factors are simply those values or expression that can be divided by the given expressions

We have the factors as follows;

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a

b

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3 years ago