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3 years ago

Which equation models the situation??

Mathematics

1 answer:

zlopas [31]3 years ago

4 0

The answer is option 4. 15% off means the price is 100-15%=85% of the original price.

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When Barbara started her trip, the odometer read 13,487.8. When she ended the trip, it read

solniwko [45]

Who was the 1 president

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3 years ago

Read 2 more answers

Vending machines can be adjusted to reject coins above and below certain weights. The weights of legal U.S. quarters have a norm

tigry1 [53]

Answer: The percentage of legal quarters will be rejected by the vending machine = 2.275%

Step-by-step explanation:

Given: The weights of legal U.S. quarters have a normal distribution with a mean of 5.67 grams and a standard deviation of 0.07 gram.

Let x be the weights of legal U.S. quarters .

Required probability: $P(x5.81)$

$=P(\dfrac{x-\mu}{\sigma}\dfrac{5.81-5.67}{0.07})\\\\=P(z2)\approx0.02275 \ \ \ [By\ P-value\ calculator]$

The percentage of legal quarters will be rejected by the vending machine = 2.275%

5 0

2 years ago

Help me pleaseeeeeeeeeeeeee

lubasha [3.4K]

I had this and it was b for me

6 0

2 years ago

2. Write each of the following in set builder form. A = [5, 10, 15,20]

Virty [35]

Answer:

A={x:x is a multiple of five }

4 0

2 years ago

Write the ratio as a fraction in simplest form.

vitfil [10]

Answer:

Part 1) $\frac{5}{2}$ or $5:2$

Part 2) $\frac{8}{1}$ or $8:1$

Step-by-step explanation:

Write the ratio as a fraction in simplest form

Part 1) 15 girls to 6 boys

we know that

To find out the ratio, divide the number of girls by the number of boys

$\frac{15}{6}$

Simplify

Divide by 3 both numerator and denominator

$\frac{5}{2}\ \frac{girls}{boys}$

Part 2) 24 plays for 3 teams

we know that

To find out the ratio, divide the number of plays by the number of teams

$\frac{24}{3}$

Simplify

Divide by 3 both numerator and denominator

$\frac{8}{1}\ \frac{plays}{team}$

5 0

3 years ago