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3 years ago

In a Toy store, the ration of dolls to teddy bears is 9:3. If the store has 240 dolls, how many teddy bears are in the store

Mathematics

2 answers:

agasfer [191]3 years ago

8 0

Answer:

Step-by-step explanation:

It means that there are a third part of teddy bears, so

240 / 3 = 80

AleksAgata [21]3 years ago

5 0

9 bears : 3 dolls now multiply both sides by 80.
9x80 bears : 3x80 dolls Now simplify
720 bears : 240 dolls

The answer is 720 teddy bears

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Solve y=-3x² + 4.5x – 20<br> Use the Quadratic formula

statuscvo [17]

Answer:

$x=0.75 \pm 2.47067i$

Step-by-step explanation:

Quadratic Formula: $x=\frac{-b \pm \sqrt{b^2-4ac} }{2a}$

√-1 is imaginary number i

Step 1: Define

y = -3x² + 4.5x - 20

a = -3

b = 4.5

c = -20

Step 2: Substitute and Evaluate

$x=\frac{-4.5 \pm \sqrt{4.5^2-4(-3)(-20)} }{2(-3)}$

$x=\frac{-4.5 \pm \sqrt{20.25-240} }{-6}$

$x=\frac{-4.5 \pm \sqrt{-219.75} }{-6}$

$x=\frac{-4.5 \pm \sqrt{219.75}(\sqrt{-1} ) }{-6}$

$x=\frac{-4.5 \pm i\sqrt{219.75} }{-6}$

$x=\frac{4.5 \pm i14.824 }{6}$

$x=0.75 \pm 2.47067i$

7 0

3 years ago

Steve wants to buy a new music player. The player he wants costs $279.95. The city he lives charges a 5% sales tax, so for every

Yakvenalex [24]

Ultimately, the question is "What is 5% of $279.95?"

To answer this, multiply 279.95 by 5%, or 0.05 which is 5% in decimal form.

6 0

3 years ago

A plant grows 3 centimeters in 10 days. How much does it grow per day? Write your answer as a fraction in simplest form

ASHA 777 [7]

It grew 3/10, which equals 0.3 centimeters every day, and as a fraction, 3/10 would be the answer.

3/10 is the answer.

Hope this helps, and have a nice day!

5 0

3 years ago

Read 2 more answers

Need help on the last problem please.

pshichka [43]

Answer:

6 of x and 5 of y

Step-by-step explanation:

x = number of closets of the first type

y = number of closets of the second type

1200 = 100x + 120y

100 = 10x + 8y

10x = 100 - 8y

10x(100 - 8y) + 120y = 1200

1000 - 80y + 120y = 1200

40y = 200

y = 5

100 = 10x + 8×5 = 10x + 40

60 = 10x

x = 6

20x + 24y = max

20×6 + 24×5 = 120 + 120 = 240

6 0

3 years ago

Okay so imugwy and wat is 100*3/6

jonny [76]

Answer:

what is your questions mate I mm didn't understand ¯\_(ツ)_/¯

Step-by-step explanation:

,When a percent amount is multiplied to another number, the operation produces a value that equals the given percent of the original number. ... Multiplying a number by 100 percent is a just variation of the multiplicative identity and will result in the value being unchanged.

4 0

3 years ago