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2 years ago

Explain why the graph does or does not have represent a proportional relationship between the variables D&T

Mathematics

2 answers:

saw5 [17]2 years ago

6 0

The graph does represent a proportional relationship because it forms a straight line through the origin

vlabodo [156]2 years ago

4 0

Wait what???????????????

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What is now the length in meters?

Natasha_Volkova [10]

I think length is 7－x.

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3 years ago

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Solve the equation for a<br> 5n + 34 = -2(1 - 7n)<br> a equals

aliya0001 [1]

Answer:

n = 4

Step-by-step explanation:

Where's a or did you mean n?

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3 years ago

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A sequence of 7 numbers starts with 8. The second number in the sequence is unknown and may be positive or negative. The third t

scoray [572]

Answer:

Explanation:

$a_1=8,a_7=0$

Since the third term is the sum of the two previous terms

$a_3=a_2+a_1$

$a_7=a_6+a_5$

$a_7=a_5+a_4+a_4+a_3$

Continuing in like manner

$a_7=5a_3+3a_2$

Since $a_3=a_2+a_1$

$a_7=5(a_2+a_1+3a_2$

$a_7=5a_2+5a_1+3a_2$

$a_7=8a_2+5a_1$

Recall: $a_1=8,a_7=0$

$0=8a_2+5*8$

$8a_2=-40$

$a_2=-5$

The sequence is therefore:

8,-5,3,-2,1,-1,0

The sum of the seven numbers is 4.

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2 years ago

A store has a 25\%25% off sale on coats. With this discount, the price of one coat is \$34.50$34.50. What is the original price

timama [110]

Answer:

$46

Step-by-step explanation:

A percent is a portion of 100. If we receive 25% off then we pay 75% of the price. 100%-25%=75%. $34.50 is 75% of the original price. We find the new price through a proportion. A proportion is an equation where two ratios or fractions are equal. The ratios or fractions compare like quantities. For example, we will compare percent over percent to an equal ratio of $ to $.

$\frac{75}{100} =\frac{34.50}{y}$