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3 years ago

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If one term of a proportion is not known, what can be used to find the value of that term? a. substitution c. cross-multiplicati

on b. graphing d. adding all the numbers together

1 answer:

Vedmedyk [2.9K]3 years ago

6 0

Answer:

cross multiplication

Step-by-step explanation:

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Use the 45-45-45-90 triangle relationship to find the missing sides

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Answer: A is 8. B is the square root of 128.

Step-by-step explanation: Nah.

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3 years ago

You have a garden ABCD that you decide to move to another

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3 years ago

Read 2 more answers

The cost of 1 watermelon and 5 oranges is $11.The cost of 3 watermelons and 5 oranges is $24.50.How much is the cost of 1 waterm

nignag [31]

Answer:

$6.75

Step-by-step explanation:

1: In this explanation, let's let one watermelon be w, and one orange be o.

2: From the passage, 1w + 5o = $11.

3: Also from the passage, 3w + 5o = $24.50

4: We can then use a simultaneous equation to work them out - both equations we have use 5 oranges.

3w + 5o = 24.5 (equation 1)

1w + 5o = 11 (equation 2)

5: We can now take the second equation away from the first :

3w - 1w = 2w, 5o - 5o = 0, 24.5 - 11 = 13.5

Now we know 2w = 13.5

6: If 2w = $13.50, one watermelon will be half of that, so $6.75

Hope this helps, let me know if you have any further questions :)

8 0

2 years ago

Find endpoint with given endpoint and midpoint

TEA [102]

Answer:

(21, 17 )

Step-by-step explanation:

Using the midpoint formula and equating to the coordinates of the midpoint.

Let endpoint 2 have coordinates (x, y ), then

0.5(x - 3) = 9 ( multiply both sides by 2 )

x - 3 = 18 ( add 3 to both sides )

x = 21

and

0.5(y - 5) = 6 ( multiply both sides by 2 )

y - 5 = 12 ( add 5 to both sides )

y = 17

endpoint 2 = (21, 17 )

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3 years ago

Determine if y=-2x-7 and -y=2x+13 are parallel, perpendicular, coincide or none of these

Goryan [66]

If you move the negative on the left side of the second equation over to the right side, then we can see that the equation is equivalent to $y={-2x} - 13$ .

Remember that an equation $y = mx + b$ represents a line with slope $m$ and y-intercept $b$ . Since both equations given have a slope of -2, but have different y-intercepts, they are parallel.

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3 years ago