3 years ago

You can tell if there a proportional relationship just by looking at an equation true or false

Mathematics

2 answers:

Mariana [72]3 years ago

8 0

Answer:

True.

Step-by-step explanation:

Look at the ratio of y to x. To see if its a proportional relationship, just put a 0 for x and then proceed to solve for y.

Ierofanga [76]3 years ago

8 0

Answer
True...
I think

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LekaFEV [45]

Answer:

180

Step-by-step explanation:

450 x 0.4 = 180

4 0

3 years ago

8 times of the eight term of an arithmetic progression is equal to 12 times of the twelfth term. find its first term if the comm

Ilya [14]

Answer:

a₁ = 38

Step-by-step explanation:

Given AP, where:

8a₈ = 12a₁₂
d = -2,
a₁ = ?

=============

<h3>Solution</h3>

aₙ = a₁ + (n-1)d

a₈ = a₁ + 7d = a₁ + 7*(-2) = a₁ - 14
a₁₂ = a₁ + 11d = a₁ + 11*(-2) = a₁ - 22

8a₈ = 12a₁₂

8(a₁ - 14) = 12(a₁ - 22)
2(a₁ - 14) = 3(a₁ - 22)
2a₁ - 28 = 3a₁ - 66
3a₁ - 2a₁ = -28 + 66
a₁ = 38

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3 years ago

Determine the product (4.2×10^-1)+(5.7+10^-1)

Alenkasestr [34]

Answer: (D) 2.394 * 10^-1

Step-by-step explanation:

(4.2 * 10^-1) (5.7 * 10^-1)

= 2.394 * 10^-1

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3 years ago

A farm grows both beans and corn. Each year, beans earn $900 per acre and corn earns $600 per acre. The farm has a total of 58 a

beks73 [17]

Answer:

35 acres of beans and 23 acres of corn

Step-by-step explanation:

58 divided by 2 = 29 +8 = 35 x 900 = 31500

= 29 - 6 = 23 x 600 = 13800

= 45300

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3 years ago

Kate needs 3 pieces of ribbon. She needs 2 pieces that are each 8.5 inches long and another piece that is 7.75 inches long. She

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B is the correct answer

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