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3 years ago

Challenge!! Try to guess the sequence !!

Mathematics

1 answer:

Elenna [48]3 years ago

8 0

Answer:

Step-by-step explanation:

the first thing we should work on is wands. 21/3=7 so 1 wand = 7. Then we do the brooms, count them there are 4. so 12/4=3 so 1 broom = 3. Next we do the witches, (witch + wand + broom) * 3 = 45 so you divide both sides by 3 to simplify into witch + wand + broom = 15, plug in the known values, witch + 7 + 3 = 15, solve for witch: witch = 5. so finally we have (broom = 3) + (witch = 5) * (2*wand = 14), order of ops says we do multiplication before addition so the final equation is 3+(5*14)=73

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How many pounds of cashews that cost $14 per pound must be mixed with 5 pounds of peanuts that cost $6.50 per pound to make mixe

Fantom [35]

The amount of cashew mixed is 5 pounds

<h3>Word problem on total cost</h3>

Cost of 1 pound of cashew = $14

Cost of 1 pound of peanut = $6.50

Total cost of 1 pound of the mixed nuts = $10.25

Cost of 5 pounds of peanuts = 5 x $6.50

Cost of 5 pounds of peanuts = $32.50

Let the amount of cashew be x

Total cost of x cashew = 14x

Total amount of the mixed nuts = x + 5

Total cost of the mixed nuts = 10.25(x+5)

Total cost of the mixed nuts = 10.25x + 51.25

14x + 32.50 = 10.25x + 51.25

14x - 10.25x = 51.25 - 32.50

3.75x = 18.75

x = 18.75/3.75

x = 5

Therefore, the amount of cashew mixed is 5 pounds

Learn more on word problem on cost here: brainly.com/question/21405634

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8 0

2 years ago

Read 2 more answers

The scatterplot shows the relationship between the number of slices of pizza eaten by each member of a football team (x) and the

ivolga24 [154]

Answer:

5.31

Step-by-step explanation:

Given the regression line equation, $y = 10 - 0.67x$ , where,

x = number of slices of pizza eaten

y = number of laps run immediately

Number of laps run by a player who ate 7 slices of pizza can be predicted by plugging in x = 7 into the regression line equation to find y:

$y = 10 - 0.67x$

$y = 10 - 0.67(7)$

$y = 10 - 4.69$

$y = 5.31$

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3 years ago

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zalisa [80]

Answer:

#6 is D

#7 is A

Step-by-step explanation:

-1/3(6x+15)-3

Distribute the -1/3

-1/3 times 6x is -2x

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-2x-5-3

-2x=8

-12z-5z=85

COmbine like terms

-17z=85

Divide both sides by -17

z=-5

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2000x7/100=140
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