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denis-greek [22]
3 years ago
11

PLEASE HELP!! WILL GIVE BRAINLIEST!!

Mathematics
1 answer:
Kazeer [188]3 years ago
3 0

Answer:

r is between 0 and 8

Step-by-step explanation:

Since Rachel only has enough money for 8 rolls, the upper limit is 8 for r. The lower limit must be none because she doesn't have to buy and rolls. Therefore, r must be between 0 and 8.

Thank you, and I hope you learned from this answer! Please mark this as brainliest if you learned from this!

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5 1/2 +1 3/10x=13 what does x equal
Advocard [28]

Answer:

x=5\frac{10}{13}

Explanation:

Given the equation

5\frac{1}{2}+1\frac{3}{10}x=13

Step 1: Change all the mixed fraction to improper fractions

\implies\frac{11}{2}+\frac{13x}{10}=13

Step 2: Find the lowest common multiple of the denominators (2 and 10)

The lowest common multiple = 10

Step 3: Multiply all through by 10.

\begin{gathered} \implies\frac{11}{2}\times10+\frac{13x\times10}{10}=13\times10 \\ =55+13x=130 \end{gathered}

Step 4: Apply the subtraction law of equality. (Subtract 55)

\begin{gathered} 55-55+13x=130-55 \\ 13x=75 \end{gathered}

Step 5: Apply the division law of equality. (Divide by 13)

\begin{gathered} \frac{13x}{13}=\frac{75}{13} \\ x=5\frac{10}{13} \end{gathered}
8 0
1 year ago
Write a rule and graph
abruzzese [7]

Answer:

The rule is the funtions,such as (0,1) and (13,4) not to menchtion you need to add,subtract and devide for this spasific problem.

Hope this helps you!

Step-by-step explanation:

Ask me

5 0
3 years ago
PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS!<br> Are the images convex or concave polygons?
svp [43]

Answer:

concave polygones

Step-by-step explanation:

5 0
2 years ago
Arthur started school in 1969. He is still living. If he was 7 years old when he started school, how old was he in 1980?
scoray [572]
He would be 18 in 180
4 0
3 years ago
Evaluate (2-3) (4) - 9 -3.<br> -7<br> I<br> 11<br> 4
Delicious77 [7]

Answer:

-16

Step-by-step explanation:

8 0
3 years ago
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