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3 years ago

Explain how solving 2x<-8 is different from solving -2x<8

Mathematics

1 answer:

nikitadnepr [17]3 years ago

4 0

Answer:

the negatives

Step-by-step explanation:

the first is 2x<-8 so it would be a positive but the second would be negative because -2<8 has a negative first

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Ann’s gym charges $20 per month plus $5 per visit. Blake’s gym charges $30 per month plus $3 per visit. Ann and Blake make the s

n200080 [17]

Answer:

210

Step-by-step explanation:

8 0

3 years ago

Alicia ran 2 1/4 of a mile in 3/5 of an hour. At this rate, how far coukd Alicia run in an hour?

Dennis_Churaev [7]

( 2 1 / 4 ) * ( 5 / 3 ) = ( 9 / 4 ) * ( 5 / 3 ) = 45 / 12 = 15 / 4 = 3.75 mile run in an hour

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4 years ago

Inventory Heung-Soo is responsible for checking a shipment of technology equipment that contains laser printers that cost $700 e

Alla [95]

Answer:

P + M = 30

700P + 200M = 15000

Number of laser printers = 18

Number of color monitors = 12

Step-by-step explanation:

Let P = number of laser printers

Let M = number of color monitors

Given total number of boxes = 30

⇒ P + M = 30

Given:

$700 = cost of laser printer
$200 = cost of color monitor
$15000 = total cost of order

⇒ 700P + 200M = 15000

Rewrite P + M = 30 to make P the subject:

⇒ P = 30 - M

Substitute into 700P + 200M = 15000 and solve for M:

⇒ 700(30 - M) + 200M = 15000

⇒ 21000 - 700M + 200M = 15000

⇒ 500M = 6000

⇒ M = 12

Substitute found value for M into P = 30 - M and solve for P:

⇒ P = 30 - 12 = 18

5 0

2 years ago

Simplify the following expression. 4a^-2b<br><br> A.) b/4a^2<br> B.)4b/a^2<br> C.)1/4a^b2

Sergio [31]

ANSWER

The correct answer is B

$\frac{4b}{ {a}^{2} }$

EXPLANATION

The given exponential expression is

$4 {a}^{ - 2} b$

We can rewrite this as,

$4b \times {a}^{ - 2}$

We need to simplify to obtain a positive index, so we apply the following property,

${a}^{ - m} = \frac{1}{ {a}^{m} }$

This implies that,

$4b \times {a}^{ - 2} = 4b \times \frac{1}{ {a}^{2} }$

This will finally simplify to,

$4b \times {a}^{ - 2} =\frac{4b}{ {a}^{2} }$

Therefore the correct answer is B

6 0

3 years ago

Read 2 more answers

Hat percent of 160 is 48?

VLD [36.1K]

48% of 160 is 76.8. I assume this is what you were asking?

7 0

4 years ago