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3 years ago

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Mathematics

1 answer:

nirvana33 [79]3 years ago

7 0

15·0.8 + x = 30·0.9 --> x = 15

C. is the correct answer

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!Can some1 help! !Help FAST!

NemiM [27]

Answer:

4y-9

Step-by-step explanation:

y is the number, 4 times the number = 4y

so 4y-9

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2 years ago

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A chef cooks 9 lbs of chicken for 36 people and 17 lbs of chicken for 68 people

Anastaziya [24]

Answer:

$\frac{1}{4} lbs/person$

Step-by-step explanation:

Here is the complete question: Find the rate of change for the situation:

A chef cooks 9 lbs of chicken for 36 people and 17 lbs of chicken for 68 people.

Given: 1st situation, A chef cook 9 lbs chicken for 36 people.

2nd situation, chef cook 17 lbs chicken for 68 people.

∴ 1st situation, weight of chicken per person= $\frac{9\ lbs}{36\ person} = \frac{9}{36}$

Weight of chicken per person= $\frac{1}{4} lbs/ person$

2nd situation, weight of chicken per person= $\frac{17\ lbs}{68\ person} = \frac{17}{68}$

Weight of chicken per person= $\frac{1}{4} lbs/ person$

In both the situation chef cook same amount of chicken per person, which is $\frac{1}{4} lbs/ person$

∴ Rate of change is $\frac{1}{4} lbs/ person$

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2 years ago

Solve the inequality and graph the solution on the line provided.

jeka57 [31]

i hope this helps you......

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2 years ago

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A first number plus twice a second number is 13. Twice the first number plus the second totals 14. find the numbers

sashaice [31]

Answer:

the first number is 5 the second number is 4

Step-by-step explanation:

first number = x

second number = y

X+2y=13 given this isolate x x = 13-2y

2x+y=14 substitute 13-2y for x

2(13-2y)+y=14

26-4y+y=14

-3y=-12

y=4 taking this number substitute into either equation above

x+2(4)=13

x+8=13

x=5

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2 years ago

Write a polynomial equation in standard form with roots of -3 and 4

liubo4ka [24]

Answer:

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Step-by-step explanation:

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