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3 years ago

Write an equation that passes through the points (3, 6) and (1,-1)

2 answers:

7 0

Finding gradient:

m = y2 - y1
x2 - x1

= -1 - 6
1 - 3

= -7 / (-2)
= 7/2

y = m(x - x1) + y1
y = 7(x - 3) + 6
2
2y = 7x - 21 + 12
2y = 7x - 9

Lady bird [3.3K]3 years ago

7 0

Answer:

y = 7/2x - 9/2

Step-by-step explanation:

y2 - y1 / x2 - x1

-1 - 6 / 1 - 3

-7 / -2

7/2

y = 7/2x + b

-1 = 7/2(1) + b

-1 = 7/2 + b

-9/2 = b

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Jim buys two boxes of apples. 90% of the total apples are ripe.

Sedaia [141]

Jim buys 2*15=30 apples
To get the answer we have to find 90% of 30
90% = 0.9
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Now we can subtract 30-27=3 - its the answer

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3 years ago

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Alicia earned d dollars baby-sitting. Her friend earned twice as much. You earned $2 less than Alicia's friend earned. Write an

Semenov [28]

Answer:

$Total = \$5d - 2$

Step-by-step explanation:

Represent Alice with A, her friend with F and you with Y.

From the question, we have:

$A = \$d$

$F = 2 * A$ --- Twice as much Alice means 2 times Alice's earnings

$Y = F - 2$ --- 2 less than her friend

Required

Determine the total amount

$A = \$d$

Substitute $\$d$ for A in $F = 2 * A$

$F = 2 * \$d$

$F = \$2d$

Substitute $\$2d$ for F in $Y = F - 2$

$Y = \$2d - 2$

The total amount is calculated by adding the earnings of Alice, her friend and you

$Total = A + F + Y$

$Total = \$d + \$2d + \$2d - 2$

$Total = \$5d - 2$

<em>Hence, the total earnings is 5d - 2</em>

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3 years ago

Write a common denominator for 1/4 and 5/6

prohojiy [21]

Well 4 and 6 have a common multiple:12 so
$\frac{1}{4}* \frac{3}{3} = \frac{3}{12}$
$\frac{5}{6} * \frac{2}{2}= \frac{10}{12}$

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3 years ago

Hurry I am timed Which part of the cell holds genetic information in the molecule DNA?

Xelga [282]

Answer:

Chromosomes

Have a great day!

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Orlov [11]

Look you math book up on sladder and it'll have all the answers for free!!!!!!!!!!!!!!!

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