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2 years ago

Every two out of three kids sang at the talent show. What percent of the kids did not sing at the talent show? (round)

Mathematics

1 answer:

kvv77 [185]2 years ago

5 0

66.7 %
convert to decimal the multiply by 100

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Find the value of x from the equation

Jobisdone [24]

$\dfrac{8^{3x}}{2^{10}}=\dfrac{4^{2x}}{16} \\\dfrac{2^{3(3x)}}{2^{10}}=\dfrac{4^{2x}}{4^2} \\2^{9x-10}=4^{2x-2} \\2^{9x-10}=2^{2(2x-2)} \\2^{9x-10}=2^{4x-4} \\9x-10=4x-4 \\5x-6=0 \\5x=6 \\\boxed{x=\dfrac{6}{5}}$

Hope this helps.

r3t40

3 0

2 years ago

Gilbert is baking cookies and brownies for a bake sale. It costs him $3 for every batch of cookies he makes and $4 for every bat

Brilliant_brown [7]

Let c=the number of batches for the cookies; b=that for the brownies.
If $P=the profit, then
maximize P=5c+4.5b, subject to the constaints:
3c+4b<=100 (cost)
2c+b<=45 (time)
b,c >=0
The simplest way to find the suitable b & c is
to solve
3c+4b=100
2c+b=45
for b & c
The result is b=13 & c=16
=>
max. p=5(16)+4.5(13)=$138.5

Hope this helps :)

5 0

2 years ago

Amber and her friend Nathan are

Gnesinka [82]

Answer:

{(12-4) + (15-8)}x = 65

Step-by-step explanation:

The amount Amber earns per week

12-4

The amount Nathan earns per week

15 -8

The total amount per week they earn together

(12-4) + (15-8)

Multiply by x weeks

{(12-4) + (15-8)}x

Set this equal to 65 to be the amount they need to equal 65 dollars

{(12-4) + (15-8)}x = 65

5 0

2 years ago

Read 2 more answers

The difference in the price of 2 backpacks is $19.30. If one backpack costs $39.00, which of the answer choices could represent

Ostrovityanka [42]

Answer:

$19.70 OR $58.30

Step-by-step explanation:

I say either or because I can't see the answer choices.

Its either adding or subtracting from the one backpack we know is $39.00

If we know the difference between the two is 19.30

39.00+19.30 = 58.30

39.00-19.30= 19.70

See if either of those are available :) Hope this helps! :)

4 0

2 years ago

SOMEONE THAT CAN HELP ME ASAP

Mars2501 [29]

Answer: 288

Explanation:
Split the shape up into a rectangle and triangle (shown in picture).

Find the lengths of the triangle:
Height:
28 - 12 = 16
Base:
16 - 4 = 12

Find the area of the rectangle:
12 x 16 = 192

Find are of the triangle:
(12 x 16) ÷ 2 = 96

Add them together:
96 + 192 = 288

I hope this helped. If you hang questions feel free to ask.

7 0

2 years ago