3 years ago

88 less than 8 times a number is 34 less than twice. turn to equation

Mathematics

1 answer:

dedylja [7]3 years ago

3 0

8x - 88 = 2x - 34

6x = 54

x = 9

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Alex buys 24 apples from the supermarket. When he gets home, he finds that 6 apples are bad. What percentage of the apples are b

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The percentage of apples that are bad is 25%. This is because 25% of 24 is 6. I hope this helped!

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2 years ago

Use the Rational Zeros Theorem to write a list of all possible rational zeros of the function.

marishachu [46]

Answer:

$\text{Possible rational zeros}=\pm1,\pm\frac{1}{2},\pm2,\pm3,\pm\frac{3}{2},\pm6,\pm9,\pm\frac{9}{2},\pm18$

Step-by-step explanation:

We have been given the function

$f(x)=-2x^2+4x^3+3x^2+18$

From the rational zeros theorem, we have

$\text{Possible rational zeros}=\pm\frac{\text{Factors of constant term}}{\text{Factors of leading coefficient}}$

From the given function,

Leading coefficient = 2

Factors of 2 are 1,2

Constant term = 18

Factors of constant term = 1, 2, 3, 6, 9, 18

Hence, we have

$\text{Possible rational zeros}=\pm\frac{1,2,3,6,9,18}{1,2}\\\\\text{Possible rational zeros}=\pm1,\pm\frac{1}{2},\pm2,\pm3,\pm\frac{3}{2},\pm6,\pm9,\pm\frac{9}{2},\pm18$

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3 years ago

Solve F(x) for the given domain. F(x) = x² + 3x - 2 F(3)=____ a. 13 b. 16 C. 40

Llana [10]

Answer:

B. 16

Step-by-step explanation:

F(3) means we must plug the number "3" into the equation for each x.

(3)^2 + 3(3) -2

9 + 9 - 2

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3 years ago

Read 2 more answers

A first number plus twice a second number is 9. Twice the first number plus the second totals 21. Find the numbers

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Let x and y be the numbers;
We have x + 2y = 9 and 2x + y = 21;
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Finally, 2(9-2y) + y = 21 ;
18 - 4y + y = 21;
18 - 3y = 21;
-3y = 3;
y = - 1;
x = 9 - 2× (-1);
x = 9 + 2 ;
x = 11;

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3 years ago

A school with 340 students produces trash that fills 1,190 tall trash cans per week. If each student produces the same amount of

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3.5 trash cans a week

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2 years ago