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4 years ago

Which is the standard form equation?

Mathematics

1 answer:

iVinArrow [24]4 years ago

6 0

9514 1404 393

Answer:

d 4x +y = 17

Step-by-step explanation:

The only equation satisfied by the given point is also in standard form:

4x +y = 17

Trying the given point in the different equations, we have ...

a) 4x -y = 4(5) -(-3) = 23

b) 4x +y = 4(5) +(-3) = 17

c) -4x +y = -4(5) +(-3) = -23

d) 4x +y = 4(5) +(-3) = 17 . . . . equation D matches the point

Solving for y, we have ...

y = -4x +17 . . . . a slope of -4 . . . . equation D matches the slope

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A baker uses 131 2 cups of flour to make key lime bread. She uses 21 4 cups of flour to make each loaf. The baker sells 2 3 of t

elena-14-01-66 [18.8K]

Answer:

She sells 4 loaves of key lime bread

Step-by-step explanation:

Extracting the key information from the question:

*** A baker uses 13 1/2 cups of flour to make key lime bread

*** She uses 2 1/4 cups to make each loaf.

*** She sells 2/3 of the loaves of bread that she makes.

Now, since she uses 2 1/4 to make each loaf, we will convert this into improper fraction.

2 1/4 = [(4×2)+1]/4 = 9/4

She uses a total of 13 1/2 cups of flour to make all loaves.

To find the number of loaves she makes, we will divide the overall quantity of flour used by the quantity used to make a loaf

13 1/2 ÷ 2 1/4

Since 13 1/2 and 2 1/4 are the same as 27/2 and 9/4 respectively (mixed to improper fractions), we will then divide 27/2 by 9/4

= 27/2 × 4/9 = 6 loaves (total bread she makes).

Again, we learnt she sells 2/3 of the total loaves she makes.

Since total = 6, then 2/3 of 6 is:

2/3 × 6 = 4 loaves .

Therefore, the baker sells 4 loaves of key lime bread.

5 0

4 years ago

Read 2 more answers

A sample of men's heights was taken and the mean was 68.8 inches. The standard deviation is 2.8 inches. What percent of the men

jarptica [38.1K]

Answer:

87.29%

Step-by-step explanation:

Given: Mean= 68.8 inches

Standard deviation= 2.8 inches

Now, finding the percent of the men in the sample were greater than 72 inches.

We know, z-score= $\frac{x-mean}{standard\ deviation}$

z-score= $\frac{72-68.8}{2.8}$

⇒ z-score= $\frac{3.2}{2.8} = 1.14$

∴ z-score= 1.14

Next, using normal distribution table to find percentage.

Coverting 0.8729 into percentage= $0.8729\times 100$

We get the percentage as 87.29%

Hence, 87.29% of the men in the sample were greater than 72 inches.

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4 years ago

Find the unit price of 3 cans of cat food for $0.85

andrey2020 [161]

Answer:

$0.28

Step-by-step explanation:

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3 years ago

A model car uses the scale 1:43. The actual length of a car is 17.2 feet. What is the length of the model car?

faust18 [17]

17.2/43= 0.4

Since the scale is 1:43, you would just divide the actual length by 43.

0.4:17.2 is congruent to 1:43.

43/17.2= 2.5

1/.04= 2.5

I hope this helps!
~kaikers

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4 years ago

Write the equation for the vertical line that contains point E(-7,7)

Levart [38]

Vertical line are represented by x = a number....that number being the x value in ur set of points

so ur equation is : x = -7

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4 years ago