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serious [3.7K]
3 years ago
13

Could -2be used as a base to rewrite 32? 64? why or why not

Mathematics
1 answer:
kenny6666 [7]3 years ago
4 0
32. No because (-2)^5= -32. The exponent is odd so the negative sign does not cancel out.

64. Yes because (-2)^6=64. The exponent is positive so the negative sign in -2 is cancelled out through multiplication.
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A recipe that serves four people calls for 2 1/4 cups of butter. How many cups of butter needed to serve 10 people? Show your wo
Eduardwww [97]

Answer:

5 5/8

Step-by-step explanation:

2 1/4 * 2 = 4 1/2

2 1/4 / 2 = 1 1/8

4 4/8 + 1 1/8 = 5 5/8

7 0
3 years ago
The County Fair has to 2 ticket options.Option 1 has an entry fee of $5 and charges $0.65 per ride per ride. Option 2 has an ent
Ugo [173]

For 25 tickets total cost of option one and option two to be the same.

Step-by-step explanation:

Let us assume the total number of rides = m

for which BOTH options cost same.

Case: 1

The cost of entry fee  = $5

The cost per ride = $0.65

So, the cost of m rides  = m x ( Cost of 1 ride )  

=  m x ($0.65 ) = 0.65 m

Cost of purchasing m tickets in first ride  = Entry Fee + Per ticket cost

                                                                       = 5 +0.65 m    ..... (1)

Case: 2

The cost of entry fee  = $10

The cost per ride = $0.45

So, the cost of m rides  = m x ( Cost of 1 ride )  

=  m x ($0.45 ) = 0.45 m

Cost of purchasing m tickets in second ride  = Entry Fee + Per ticket cost

                                                                       = 10 +0.45 m    ..... (2)

Now, equating (1) and (2), we get:

5 +0.65 m = 10 +0.45 m

or, 0.20 m = 5

or, m = 5/0.20  = 25

or, m = 25

Hence, for 25 tickets total cost of option one and option two to be the same.

5 0
3 years ago
During the Playoff the schools football team has on average 30% their games than during the regular season. The average for this
exis [7]

Answer:12000

Step-by-step explanation:

During the Playoff the schools football team has on average 30% their games than during the regular season

The average for this year's playoffs attendance was 15,600 fans

To get the number of fans during a regular season goes thus:

Since there is an increase of 30%, we add 100% to 30% which gives:

100% + 30% = 130%

= 15600 ÷ 130%

= 15600 ÷ 130/100

= 15600 × 100/130

= 15600 × 0.7692

= 12000

There are 12000 fans during a regular season

5 0
3 years ago
Read 2 more answers
Help here pls. im just confused on what its asking me
Yuliya22 [10]

It's just telling you to multiple like 9×1=9 9×2=18 and so on.

5 0
3 years ago
Caleb bought groceries and paid
lutik1710 [3]

Answer:

Price of Caleb's groceries before tax= $6.4

Step-by-step explanation:

Let price of groceries before tax be = $ x

Sales tax % = 2.5%

Sales tax applied = 2.5\% \ of\ x = \frac{25}{100}\times x = \frac{25}{100} x

Actual sales tax paid = $1.60

∴ \frac{25}{100}x=1.60

Multiplying both sides by 100.

100\times \frac{25}{100}x=1.60\times 100

25x=160

Dividing both sides by 25.

\frac{25x}{25}=\frac{160}{25}

x=6.4

∴ Price of groceries before tax= $6.4

8 0
4 years ago
Read 2 more answers
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