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Zinaida [17]
2 years ago
10

Lucy is knitting a blanket and needs to buy some more yarn. at her local craft store, 2 skeins of yarn cost $7 and 8 skeins of y

arn cost $28. what is the constant of proportionality in this direct variation?
Mathematics
1 answer:
laila [671]2 years ago
7 0

Answer:

4

Step-by-step explanation:

Proportionality between skein values

8:2=4:1

Proportionality between cost values

28:7=4:1

The variation(both the skein values and cost values) has the constant of 4 ie the 1st skein value × 4= the last skein value & the 1st cost value × 4=the last cost value

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A pastry shop earned $9,026 over the course of 5 days. How much did they earn on just 1 day? Note: do not write a dollar sign
o-na [289]

Answer:

9207

Step-by-step explanation:

because if you multiply

3 0
3 years ago
(3,-3), slope 3 write an equation of the line that passes through the given point and has the given slope
tester [92]

Answer:

y = 3x - 12

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 3, thus

y = 3x + c ← is the partial equation

To find c substitute (3, - 3) into the partial equation

- 3 = 9 + c ⇒ c = - 3 - 9 = - 12

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4 0
3 years ago
Read 2 more answers
One ­fifth of Bill's age is 4 years. Find Bill's age.
dimulka [17.4K]
The answer is A). 5*4=20 one fifth is 4.
7 0
3 years ago
Which one would make me more money?
disa [49]

Answer:

im gouing to use 3 hours as an example so the first hour is 5 dollars and 8 dollars for each additional hour there are 2 additional hours which would be 16 dollars from the additional hours and plus 5 dollars from the first hour so 21 dollars

and the other option like i said earlier 3 hours is the example so 6*2 becasue their are 2 additional hours which is 12 plus 15 dollars from the first hour so 27 dollars

so the answer would be charge 15 dollars for the first hour and 6 for additional hour

can i get brainly please

3 0
3 years ago
5(x-10)=30-15x<br> Ox=1<br> Ox=4<br> Ox=5<br> Ox=8
makvit [3.9K]

Answer:

x = 4

Step-by-step explanation:

5x-50=30-15x

5x +15x =30+50

20x= 80

Divide both sides of the equation by 20

x = 4

I hope it helps

7 0
3 years ago
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