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Sergeeva-Olga [200]
3 years ago
10

The table shows the number of days required to perform a given number of chores. The number of days varies directly with the num

ber of chores. What is the constant of variation?

Mathematics
1 answer:
poizon [28]3 years ago
4 0

Answer:

THE CONSTANT OF VARIATION IS 1/2 or 0.5

Step-by-step explanation:

Here, we want to calculate the variation constant.

From the question, we are told that number of days varies directly as the number of chores

Mathematically, that would be;

y = kx

where k is the constant of proportionality

To get the value of k, we simply divide the value of y at a point by the value of x at that point

Mathematically;

1 = 2k

which is same as

5 = 10k

Thus, the value of k would be 5/10 = 1/2 or 0.5

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mestny [16]

Answer:

1290 =  \frac{h}{10}  + \frac{h}{5} \\ 12900 = h + 2h \\ 3h = 12900 \\ h = 4300

7 0
3 years ago
An 8% sales tax is applied to a $300 purchase in Texas. What is the total price with tax
natta225 [31]

Answer:

324

Step-by-step explanation:

<u>Step 1:  Find the sales tax </u>

Equation → 300 * 0.08 = x

300 * 0.08 = x

24 = x

<u>Step 2:  Find the total </u>

Purchase + Sales Tax

300 + 24

324

Answer: 324

8 0
3 years ago
Read 2 more answers
What is the interest rate $2,200 at 7.5% for 3 1/4 years
Phoenix [80]

Answer:

$536.25

Step-by-step explanation:

First, you need to find what 7.5% of $2,200 is,

(2200/100)7.5=165

then to find how much interest has accumulated over 3 1/4 year you need to multiply the one-year interest rate by the 3.25

(165)3.25=536.25

5 0
3 years ago
An 8 oz box of cocoa puffs costs $1.59 and a 2-pound box costs $6.79. which box is a better buy
VikaD [51]

Answer: 8 oz..

1 pound= 16oz if 8oz=1.59 so add it up 4 times 8+8+8+8= 32 which = 2 pounds total 8=1.59 8+8= 1.59x2=3.18 8+8+8=1.59x3=4.77 8+8+8+8/ 1.59x4= 6.36 so all of them eights will = up to 2 pounds and 8 is obviously less

Step-by-step explanation:

6 0
3 years ago
A 208-long road is divided into 16 parts of equal length.Mr.Ward paints a 4-meter-long strip in each part.How many total meters
Readme [11.4K]
208 % 16 = 13
13 - 4 = meters not painted in a part = 9
9 × 16 (parts) = 144 meters of road not painted
6 0
3 years ago
Read 2 more answers
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