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3 years ago

What is the slope of the line

Mathematics

1 answer:

crimeas [40]3 years ago

6 0

Answer:

gradient is equal to 0.7

Step-by-step explanation:

line passes on (-2,0) and (0,1.4)

gradient =(y2-y1)/(x2-x1)

=(1.4-0)/-(0--2)

=1.4/2

=1.4/2×10/10

=14/20

=7/10

=0.7

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Hayley bought 3 1/7 of southern potato salad and 2 1/4 lb of german potato salad. how many pounds of potato salad did she buy?

storchak [24]

Answer: 5 11/28

Improper Fraction Answer: 151/28

Decimal Answer: 5.3928571

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2 years ago

What is the answer for 5-2+7x6-2?

sergiy2304 [10]

Answer: 43

Step-by-step explanation:

5-2+7x6-2

3+42-2

45-2

8 0

2 years ago

The length of a rectangular floor is 4 feet longer than its width w. The area of the floor is 525 ft^2.

andre [41]

Answer:

525 = (w+4)(w)
21 ft by 25 ft

Step-by-step explanation:

Let w represent the width of the floor. Then the length of the floor is (w+4) and its area is ...

A = LW

525 = (w+4)(w)

w^2 +4w -525 = 0

(w -21)(w +25) = 0 . . . . factor the above

Solutions are ...

w = 21, w = -25

We are interested in the positive solution: w = 21.

The floor is 21 feet wide and 25 feet long.

_____

<em>Alternate solution</em>

Sometimes, when the factors aren't obvious, it works well to write an equation for the average of the dimensions. Here, we can represent that with x, and use (x-2) for the width, and (x+2) for the length. Then we have ...

525 = (x-2)(x+2) = x^2 -4

529 = x^2

√529 = 23 = x

Then w=23 -2 = 21, and the length is w+4 = 25.

7 0

2 years ago

Read 2 more answers

Sam purchased a used car for $15000. He paid 6.3% sales tax. How much tax did he pay?

atroni [7]

Answer:

$945

Step-by-step explanation:

($15000)(.063) = $945

*note: divide by 100 to turn percent into decimal

3 0

3 years ago

What is 1000 k = to but it has to be a gram .any get it cause I don't help me

denpristay [2]

You need to convert 1000kg to grams? There are 1000g $\frac{1000g}{kg}$
Now what you need to do is multiply the number of kg you have by your conversion fractions, making sure that grams is on top so you end up with grams in your answer: $\frac{1000kg}{g}$ * $\frac{1000g}{kg}$

Kg cancel, and you are left with 1,000,000g
This means that there are 1,000,000g in 1000kg
Hope this helps!

5 0

3 years ago