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2 years ago

What’s the slope of the 2 points (-2, -1) & (3, 2)? Explain how you get it too please.

Mathematics

2 answers:

Mandarinka [93]2 years ago

8 0

Answer: 3/5

Step-by-step explanation: y2-y1/x-x1 is the formula for slope so you plug in. 2-(-1)=3 and 3-(-2)=5 and since you can't simplify anymore your answer is 3/5.

Tomtit [17]2 years ago

3 0

(-2, -1)

(3, 2)

formula:

y2 - y1
———-
x2 - x1

2 - - 1 3
——- = —
3 - - 2 5

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Solve for e E= mc2 m=3 c=6 what is the answer please

alina1380 [7]

E=mc^2 if m=3 and c=6

e=3(6^2)

e=3(36)

e=108

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3 years ago

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grigory [225]

Answer:

a:b:c=8:12:15

Step-by-step explanation:

Combined Ratio

We are given the ratios:

a:b=2:3

b:c=4:5

The combined ratio a:b:c will include all three variables in one single expression.

Before finding it, we must have a common number for the common variable (b). Since b is 3 in the first ratio and 4 in the second ratio, we must equate both by finding the LCM of 3 and 4=12, thus both ratios will be amplified as follows:

a:b=2:3=(2*4):(3*4)=8:12

b:c=4:5=(4*3):(5*3)=12:15

Now there is a common factor in both ratios, we can combine them removing the common factor:

a:b:c=8:12:15

8 0

2 years ago

Solve for Y to get the equation into slope-intercept form and then state the slope and state the slope and state the y-intercept

valentinak56 [21]

-8-4y=-5x
-4y=-5x+8
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3 years ago

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Serga [27]

Answer:

3(4x+3) or 12x + 9

Step-by-step explanation:

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2 years ago

A regular tube of toothpaste costs $2.50 for 3.2 ounces. A travel size tube costs $1.00 for 1.2 ounces. Compare the prices and w

Len [333]

Answer:

The travel size costs 6 % as much as the regular size. Thus the regular size would be more economical and thus a better buy

Step-by-step explanation:

step 1

Find out the unit rate of a regular tube of toothpaste

we know that

To find out the unit rate, divide the total cost by the total weight

$\frac{2.50}{3.2}=\$0.78\ per\ ounce$

step 2

Find out the unit rate of a travel size tube of toothpaste

we know that

To find out the unit rate, divide the total cost by the total weight

$\frac{1.00}{1.2}=\$0.83\ per\ ounce$

step 3

Find out the percent of increase

we have that

The unit rate $\$0.83\ per\ ounce$ represent the 100%

so by proportion

Find out what percentage represent the difference ($0.83-$0.78=$0.05 per ounce)

$\frac{0.83}{100\%}=\frac{0.05}{x}\\\\x=100(0.05)/0.83\\\\x=6\%$

therefore

The travel size costs 6 % as much as the regular size. Thus the regular size would be more economical and thus a better buy

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2 years ago