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Mashutka [201]
3 years ago
13

Determine whether $10.62/61lb = $7.05/4lb form a proportion. Explain.

Mathematics
2 answers:
Jlenok [28]3 years ago
5 0
It would be $1.76 for 1 lb, then you would times that by 61 and if it equals 10.62, it is proportional. I multiplied it and got $109.28/ 62 lbs so it can not form a proportion.
ziro4ka [17]3 years ago
4 0
I got the same answer^
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krok68 [10]

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6 0
3 years ago
3x + y = 8<br><br> -x + y = -4<br> Solve the system. Write your answer as an ordered pair (x, y)
timurjin [86]
I hope this helps you



x=y+4



3 (y+4)+y=8


3y+12+y=8


4y= -4


y= -1


x= -1+4


x=3


(3, -1)
8 0
3 years ago
Complete the equation of the line through (-10,-7) and (-5,–9). Use exact numbers. Y =​
Andrew [12]
Y = -2/5x - 11 is the equations
6 0
3 years ago
Write an equation to find x, then solve for angle measure A. 25 points.
prohojiy [21]

Answer:

Step-by-step explanation:

23). By applying triangle sum theorem in the given triangle,

    (x + 83)° + (x + 48)° + 65° = 180°

    2x + 196 = 180

    2x = -16

    x = -8

    Measure of angle A = x + 48

                                      = -8 + 48

                                      = 40°

     Therefore, Option A is the answer.

24). By triangle sum theorem,

     (3x + 14)° + 90° + (4 + 3x)° = 180°

     6x + 108 = 180

     6x = 72

     x = 12

     Measure of angle A = (4 + 3x)

                                       = 4 + 3(12)

                                       = 40°

     Therefore, Option A is the answer.

8 0
3 years ago
1.     At a fundraiser dinner, the bill for 4 cups of coffee
babymother [125]

<u><em>1- Writing the system of equations:</em></u>

The price of a cup of coffee is denoted by c while the price of a spaghetti is denoted by s

<u>We are given that:</u>

4 cups of coffee and 6 spaghetti cost $20.5

<u>This means that:</u>

4c + 6s = 20.5 ................> equation 1

<u>We are also given that:</u>

1 cup of coffee and 3 spaghetti cost $8.75

<u>This means that:</u>

c + 3s = 8.75 .................> equation 2

<em><u>2- Solving the equations using substitution methods:</u></em>

<u>From equation 2:</u>

c = 8.75 - 3s ................> I

<u>Substitute with I in equation 1 and solve for s as follows:</u>

4c + 6s = 20.5

4(8.75 - 3s) + 6s = 20.5

35 - 12s + 6s = 20.5

35 - 6s = 20.5

6s = 14.5

s = $2.41667

<u>Substitute with s in I to get c:</u>

c = 8.75 - 3s

c = 8.75 - 3(2.41667) = 1.4999 = $1.5

<u><em>3- getting price for 1 cup of coffee and 1 spaghetti:</em></u>

c + s = 1.5 + 2.41667 = $3.91667

Hope this helps :)

3 0
3 years ago
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