3 years ago

Arianna has a coin collection. She keeps 4 of the coins in her box, which is 10% of the

Mathematics

1 answer:

natima [27]3 years ago

5 0

Answer: 40 coins. Doesn't your profile say college?

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Lisa is earning 7.50 dollars per hour she worked for 33 hours last week. how much money did she earn?

never [62]

Answer:

Lisa earned $247.50 for working 33 hours.

Step-by-step explanation:

WAY 1: proportional reasoning

7.50 x

------ = ----

1 h 33h

33 / 1 = 33

7.50 x 33 = 247.5

WAY 2: unit rate reasoning

7.50 per hour so x value of money for 33 h

7.50 x 33 = 247.5

7 0

2 years ago

Read 2 more answers

Question 1 (Multiple Choice Worth 5 points)

AysviL [449]

Answer:

Answer should be I 16-(-10) I = 26

But I guess it's the last choice you listed, I -10-16 I = 26

6 0

3 years ago

Oceanside Bike Rental Shop charges 18 dollars plus 8 dollars an hour for renting a bike. Mary paid 74 dollars to rent a bike. Ho

sesenic [268]

Answer: 7 hours! you do 74-18 to get 56 then you divide 56 by 8 to get 7.

Step-by-step explanation:

hope this helps!!

7 0

3 years ago

Randall makes chilli for a cold winter night. To make 7 servings, he uses 12 1/4 cups of diced tomatoes. How many cups of diced

grigory [225]

Answer:

1.25 cups of diced tomatoes

Step-by-step explanation:

1. 12 1/4 ÷ 7

2. = 49/4 x 1/7

3. =49/28

4. =7/4

5. =1 1/4 or 1.25

I hope this was helpful

6 0

3 years ago

To obtain the area of a sector, what fraction is multiplied by the area of a circle (A = πr2)?

romanna [79]

Let r be a radius of a given circle and α be an angle, that corresponds to a sector.

The circle area is $A=\pi r^2$ and denote the sector area as $A_1$ .
Then $\dfrac{A_1}{A}= \dfrac{\alpha}{2\pi}$ (the ratio between area is the same as the ratio between coresponding angles).

$A_1=\dfrac{\alpha}{2\pi} \cdot A=\dfrac{\alpha}{2\pi} \cdot \pi r^2= \dfrac{r^2\alpha}{2}$ .

6 0

3 years ago